Menu Menu Previous Interview Question Next Interview Question Search print thumbs-down thumbs-up Check Square bookmark arrow-right MockQuestions.com Logo MockQuestions MockQuestions.com Logo MockQuestions
Job interview preparation
Sign in
Upgrade
Career Interviews
Interview Topics
Company Interviews
Close

Top 20 Water Treatment Operators Interview Questions

What is your greatest strength? How does it help you as a Water Treatment Operator?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 2 of 21
Would you be willing to take additional classes, after work, to get a degree in water management?
Professional Answers Preview
"I would be very honoured to be considered for a leadership role that would require additional designations from me. I am always open to learning and would certainly be willing to expand my knowledge in this industry."
Always answer this in a positive way and do not overcomplicate your answer. Now is not the time to talk about your schedule, baseball team, family obligations and need for 10 hours of sleep per night! The details would be ironed out should the opportunity be immediate. Answer in a willing and appreciative way.
More professional answers available after the upgrade
Upgrade
Question 3 of 21
How important is safety to you? In previous work, what types of safety measures did you practice?
Professional Answers Preview
"To me, safety is the primary concern on the job site. Water treatment plants see too many accidents with over 60 deaths in the industry in the last 10 years along with an addition 2,000 injuries. The safety measures that I practice include daily safety meetings, frequent safety testing and regular PPE checks."
This should be a two part, comprehensive answer. Safety is incredibly important and the interviewer would like for you to demonstrate that through your answer. You could answer something like this: "To me, safety is the primary concern on the job site. Water treatment plants see too many accidents with over 60 deaths in the industry in the last 10 years along with an addition 2,000 injuries. The safety measures that I practice include daily safety meetings, frequent safety testing and regular PPE checks."
More professional answers available after the upgrade
Upgrade
Question 4 of 21
Why are you the best candidate for us?
Professional Answers Preview
"I feel that my blend of education and experience is a strong match for this role. Also, I bring a proven track record of accuracy, care in my work and strong leadership skills. Is there any reason why you feel I would not be the best candidate for this position?"
In addition to outlining your skills you should also wrap up your answer by asking the interviewer if they see you as a fit. This will allow you to reply to any red flags they may have about your candidacy.
More professional answers available after the upgrade
Upgrade

Practice More Interviews

Behavioral
We all have some behaviors that are typical of us and which sometimes results in ...
Common
There are some questions that employers ask at almost every interview. The questions ...
Communication
Communication skills are essential for any workplace to function efficiently. However, ...
Leadership
If you are interviewing for any type of leadership role; prepare with our leadership ...
Management
Our management questions are designed for any interview for a position that has authority ...
Teamwork
This set of questions aims to ascertain what your idea of teamwork is and whether ...

Related Career Interviews

Power Plant Operator
A power plant operator is responsible for operating and controlling various power-generating and power-distributing equipment such as generators, water turbines, nuclear reactors, and boilers. As part ...
Hydrologist
Hydrology is the study of the movement, distribution, and quality of water throughout the Earth, including the hydrologic cycle and water resources. A practitioner of hydrology is a hydrologist, working ...
Construction
Construction workers work on all types of construction sites, from the construction of residential and commercial buildings to highway construction, demolition, and tunnel excavation. Their specific tasks ...
Water Quality Analyst
Environmental scientists and specialists use their knowledge of the natural sciences to protect the environment. They identify problems and find solutions that minimize hazards to the health of the environment ...
Water Conservationist
Water conservationists are conservation scientists with specialist knowledge of water conservation. Water conservationists perform surveys, monitor water conditions, develop plans for water conservation ...
Water Treatment Plant Engineer
Environmental engineers use the principles of engineering, soil science, biology, and chemistry to develop solutions to environmental problems. They are involved in efforts to improve recycling, waste ...
View More Careers
Question 5 of 21
What do you know about our treatment plant?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 6 of 21
Tell me about your math skills, and how you have applied math in previous work.
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 7 of 21
What is your greatest weakness? What are you doing to improve it?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 8 of 21
What are three different types of water pumps?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 9 of 21
Explain to me how a basic water pump works.
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 10 of 21
What is ozone and how is that used in the water treatment process?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 11 of 21
How detail oriented are you?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 12 of 21
Why do you believe water treatment plants are important?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 13 of 21
What are the two common processes for separating water and flock?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 14 of 21
How familiar are you with different types of pipe valves? Name a few.
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 15 of 21
What are coagulant chemicals used for?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 16 of 21
Tell me about your most difficult experience at your last water treatment plant.
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 17 of 21
Why are you passionate about water treatment?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 18 of 21
Do you take pride in your work? Give me an example.
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 19 of 21
Have you had any on the job training yet?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 20 of 21
Have you ever led a group before in your past employment?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers
Question 21 of 21
Do you have an operator certification? What class are you?
Professional Answer
View our answers!
Upgrade
Upgrade to view Answers

User-Submitted Interview Answers

Question 1 of 21
What is your greatest strength? How does it help you as a Water Treatment Operator?
User-Submitted Answers
1.
I study a lot and do research for me solve any aring problems as operator . Do my check all the time.
2.
My strength are in my ability to understand the intent of water purification, master the water monitoring and pursue a well comply water standard according to DWA/SANS
3.
My greatest strength is my attention to procedure and detail and my commitment to work getting the job done. Both accurately and on time.
4.
My ability to learn, troubleshoot and adapt to many different situations. I feel that will help me because it will help me come to a solution when a problem does present itself.
5.
Being organized and having operational plan for maintenance.
6.
Waste water treatment interview.
7.
My greatest strength as an operator is I double and triple check everything.
8.
My ability to understand the process well and focus on areas where there is a scope of improvement.
9.
I have excellent acute sensing, (i. E., smell, hearing, observing) and I've used these sensing to catch leaks, smell electrical wires burning, on many occasions listened and heard equipment failures, smelled Sodium Hydroxide leak, and saw tar seeping through a ceiling of our High Service Electrical building.
10.
The ability to work under pressure. This helps me to react quickly to an issue that needs to be taken care of immediately in order to prevent an equipment failure.
11.
Controls and fault finding.
12.
Experience back ground, ability to solve problems.
13.
My greatest strength would be a ability to work as a team. I know how important it is to keep the moral up. And by wokring as a team I think you can complete alot more tasks and keep the plant effiency high.
14.
Positive attitude and technical skill.
15.
I know its all processes because I manufacture it and did so much troubleshooting.
Question 2 of 21
Would you be willing to take additional classes, after work, to get a degree in water management?
User-Submitted Answers
1.
Yes,I, would especially if will help to make be a better supervisor.
2.
Envierment polution control.
3.
Yes I would be willing to take extra classes in water management after work to get a degree in water management?
4.
Yes I would. I am always willing to further my knowledge in my proffessional life and personal life.
5.
Of course I am always willing to learn.
6.
Yes, I currently am enrolled in SUM (Sustainable Utility Management) course which has a National IASET accreditation.
Question 3 of 21
How important is safety to you? In previous work, what types of safety measures did you practice?
User-Submitted Answers
1.
Safety is very important... That last thing you want to see at work is a co worker getting hurt or even yourself. Safety measures I have practiced are wearing proper PPE, lock out procedures. Checking the MSDS sheets for proper handling of different substances.
2.
Safety first. If we do safety measures then there are less chances for accidents possibilties are minar if we use helmet gloves and safety shoes.
3.
Safety is extremely important. Have lead a team to always wear hi-viz clothing and steel-cap toe footwear in and around the WWTP, have eliminated remote water meter reading which may involve unsafe practices.
4.
Safety always comes first, in any work place. It is importance to always do your due diligence within any job setting, and to take extra precaution to safety.
5.
To me safety is the most important quality that should be practiced by all employees. Working in a safe environment ensures that people will not get hurt. Safety should be practiced by everyone at all times. In my previous volunteer career, I put on safety glasses, ear plugs, walked safe paths, anticipated potential problems, and wore a hard hat.
6.
Safety is very important to me. I would rather do things by the book and take extra time if need be to do something than risk injury or death taking shortcuts. I had to lift properly in the dairy department moving around crates of milk weighing 60lbs each by hand, moving stacks of crates of milk with the milk hook in order to rotate product. Safely operate pallet jacks, power mules and big joe to heavy pallets through tight spaces and around other coworkers. Safely make cardboard bales with at least two people. Use always use the razor blade box cutter with safety. Instead of standing on shelves to reach a product to high to reach always go grab a step ladder.
7.
Safety is very important to me. Always had to wear full mask when using certain chemicals always wear safety glasses and gloves in the lab.
8.
Safety of employees and the public.
9.
Safety is very critical in all aspects of the job, studying msds data, acknowledging work permits, things of that nature.
10.
Safety is very important for me and for the work environment.
11.
Safety is important in job area and waste treated water.
12.
Very important ... I prefer to my safety firt but also keep in mind the saftey of other pc's... By wearing ppc and using ppe.
13.
It is more important while in chemical adding.
14.
Safety is most important factor in plant job, one should keep his complete safety and encourage others to wear safety equipment on the shop floor.In previous work I participated in kaizen, 5S programs which are part of safety.
15.
Monitor emergency situations and manage various equipments and procedures.
Question 4 of 21
Why are you the best candidate for us?
User-Submitted Answers
1.
Because I can advance my carrier and utilize my gained expertise from the past to improve productivity and quality.
2.
I believe my past experience and my problem solving skills are a good match for this facility.
3.
Because my past experience in plant operations and documentation work will give a proficient way to handle the plant in a effective way.
4.
I have a strong interest in working in the wastewater industry. I am a hard working, determined, and accountable. I also have excellent communication skills and I can work great in teams or by myself. I am willing to work any shift day or night.
5.
Because I treat myself as a operator not as a executive or supervisor.
6.
I am the type of person who when im given a task I will keep at it till I complete it and im always ready to learn new things.
7.
I am having six years of experience in water treatment industry. I have sound knowledge in operating RO DM plant STP & ETP. I can easily observe the problems in the plant and expedite the trouble shooting activities as required.
8.
I believe I can learn the skills and put in the effort to fit into this role.
9.
Because, I have the skills of performing the job of my carrier process.
10.
I bring a unique combination of strengths and knowledge that will benefit your agency better then any one else.
11.
Because I have a best technical knowlede about it.
12.
I am hard working eger yo learn I will be a great person to add to the team.
13.
I believe I can make an impact.
14.
I have good skill and know about my job well.
15.
Because I am a mature, conscientious operator, that has gained a considerable amount of experience and education in the water and waste water field. I am currently living in Jasper and am totally focused on furthering my career in this area of employment.
Question 5 of 21
What do you know about our treatment plant?
User-Submitted Answers
1.
You have multiple plants across the state.
2.
Fairmont Jasper Park Lodge is a private facility, to service hotel guests and staff. Quite an old system. But is currently under up grade and repair. That they strive to provide and adequate supply of world class water that complies with government standards. With enough to meet fire fighting requirements as well as human consumption.
3.
I know it provides services to both residential, industrial and commercial customers or clients within the city and also in neighbouring communities. The water is sourced from the North Sask. River and it is the responsibility of the wasterwater team to treat the water at the plant to safe and reliable standards as proposed by the water security agency and ministry of environment before it is distributed to the community. It is also their responsibility to treat the resulting waste water to reliable and safe standards before the effluent treated water is discharged to the environment.
4.
Is a process to remove impurities from water.
5.
It is a conventional treatment plant.
6.
The plant treats pure domestic wastewater.
7.
That there is three water towers in the city and the wells for the city are drilled wells. It consists of 8 I believe in three different locations.
8.
I only have the required entry level knowledge of how typical water treatment plants work, I'm sure theres is still a lot more i'll need to know.
9.
Water producing capacity and chemical using in process.
10.
You treat water for salt lake city.
11.
Just what I have read online.
12.
Although I've never visited your plant, I went online to research your plant and pulled up your latest Water Quality Report which tells me how many residents you serve, what type of treatment you utilize and how much water your produce and distribute daily to your customers. I also found an article concerning an upgrade to your SCADA system.
13.
Water is treated and brought up to a clean level for consumption.
14.
14.7 MGD capacity water source comes from the contra costa water district.
15.
I was actually studying your plant lastnight after I came back from a call out. I know that it is a class 4 treatment plant and can treat a daily flow of 68ML/d. It is also an activated sludge biological process. I noticed for disinfection that your plant uses ultraviolet radiation which I thought was pretty interesting because most plant I have worked at use chlorine. But I know that UV is a safer alternative for the envrionment then chlorine is.
Question 6 of 21
Tell me about your math skills, and how you have applied math in previous work.
User-Submitted Answers
1.
I am average student of math and I just simply calculate the production of 12 hours operation.
2.
My math skills are okay, I applied math through chemical dilution for cleaning.
3.
My skill are low. I have never had to use them to advance.
4.
They are average. I dont really use them a whole lot and what I have is dependent on what job I had at the time. In Carpentry, I used Fractions, and units of length measurement. In Refinery work, it was Ounces, Pounds. Truck Driving, it was addition, subtraction.
5.
I have done mass and energy balance before.
6.
I've taken algebra 1 in high school and have used math almost everyday of my life since I've learned to do so. Being and electrician we deal with numbers constantly. Fractions in measuring, calculating loads (voltage and amperage), wire sizing, conduit installation.
7.
Hydraulic models flow rates draw down calculation of wet wells.
8.
I would say my math skills are pretty good. My math marks in college were in the high 80s ive applied math in my previous jobs for calculating daily flow and other process eqautions like biosolids and pump hours.
9.
I had all the expenses of workshop at previous job and also my mind is very quick.
10.
Very proficient in numeracy - have extensive experience with applied maths when writing monthly and annual reports for the Council, analysing trends, etc.
11.
I have taken math classes related to waste water treatment. I helped the engineer figure out the water capacity for the aeration basins.
12.
I have basic math skills. I use them to count out money, cash over/short, labor management/scheduling.
13.
Had to apply math with the chemical loadings of the systems I was testing.
14.
My math skills are average, and I've applied those skills by using formulas to calculate flows, percentages, etc.
15.
I have good math knowledge and I know how to do estimating for jobs.
Question 7 of 21
What is your greatest weakness? What are you doing to improve it?
User-Submitted Answers
1.
I can not carry major mechenical work and I m trying to study mechinical engineering.
2.
I am anable to let my colleague who needs help to say no, by sharing the information I have to them so that we see thing in the same level.
3.
Lately, I feel it might be my physical strength and endurance. I have recently got a gym pass and have been playing hockey both in doors and out. Trying to improve my physical endurance.
4.
My greatest weakness would be I have a hard time saying no to people, I like helping others out and I put others needs ahead of mine.
5.
Take home work related issues.
6.
English is my weakness. And I am reading and listening english books and movies.
7.
I try to do too much at one time, too fast. I operate at 110% all the time and sometimes that is actually counterproductive. I am working to slow down and be patient.
8.
Understanding that not everything can be completed on my own. That its ok to ask for help if I don't understand something. Its the safer way of working.
9.
One of my greatest weakness that I have had was being to quiet during dailey meetings.. I didnt want to say something that people thought was studpid.. But with gaining my expereince I gained confidence. Now I am very active in the meetings which I know helps the way the plant runs.
10.
Technical knowledge - willing to enrol in a Certificate / Diploma course to obtain theoretical knowledge.
11.
I can sometimes be impatient, though I am constantly trying to improve this.
12.
Lack of construction experience. I am a volunteer leader of my churches paintball program which intails building bunkers, shoveling dirt, maintaining and building structures pertaining to the paintball program.
13.
Nobody had perfect communication skills, I am always trying to improve.
14.
Is probably computer skills, but the more I familiarize myself with them the more I sharpen my knowledge.
15.
My weakness is that I need to work smarter not harder.
Question 8 of 21
What are three different types of water pumps?
User-Submitted Answers
1.
Centrifugal, displacement.
2.
Submersable, centrefugle, sump.
3.
Silica send, activated carbon & water softener.
4.
Rotary pumps, centrifugal, reciprocating.
5.
Effluent, influent, straight.
6.
Effluent, influent, straight.
7.
Electric, hydraulic, pneumatic.
8.
Electric, hydraulic, and Pneumatic.
9.
Centrifugal pump, reciprocating pumps.
10.
Centrifugal, airlift and positive displacement.
11.
Centrifugal, rotary, reciprocating.
12.
Centrifugal, positive displacement, and hydraulic.
13.
Centrifuge, positive desplazment, electrics.
14.
Centrifugal, positive displacement, vertical turbine pump.
15.
Centrifugal pump reciprocating pump.
Question 9 of 21
Explain to me how a basic water pump works.
User-Submitted Answers
1.
A water pump operates by an electric motor which rotates the pump that will increase the effluent end.
2.
Impellars within the pump are powered buy a motor to move water from one place to another.
3.
Electricity rotates an impeller that forces water through a series of pipes and valves.
4.
Water is drawn into the inlet then pressurized through a mechanical action and discharged through the outlet.
5.
Pulls liquids through the suction side using horsepower to the discharge side.
6.
Water is pumped by electric motor to increase effluent.
7.
Electric motor spins the impeller which forces the water.
8.
An electric motor connected to a pump rotates the pump impellers. Water is drawn into the pump on the suction side and pushes the water out the discharge side.
9.
A pump is usually driven by an electric motor it draws water out of a container and delivers it to customers.
10.
An electric motor turns an impeller by centrifugal force that moves the water through pipes.
11.
Through suction line water enters in to a impeller where it gains velocity and flow and water is lifted.
12.
Use electricity to generate pressure difference in able to pump the water.
13.
A water pump operates by an electric motor which rotates the pump that will increase the effluent end.
14.
Electrical power turns props causing water to flow.
15.
Pump give mechanical energy to the water. The velocity energy supplied by motor is converted to pressure head and the water can be delivered to a much higher level.
Question 10 of 21
What is ozone and how is that used in the water treatment process?
User-Submitted Answers
1.
Ozone is used as a disinfectant like hypochlorinate, but it does not have any known side effect nor does it have a residual to measure in the distribution system.
2.
We do not use ozone but it is used to disinfect treated water.
3.
Ozone is used for disinfection, it has no residual. Hypocholorites do have a residual.
4.
What is ozone and how is that used in the water treatment process.
5.
Ozone is a colorless gas and toxic. It takes carbon out of water.
6.
They are very important to keep the water 100% purified and safe to consume.
7.
Is a gas made at plant to disinfect and oxidizer, remove odor, taste, algae, pesticides and more.
8.
O3 is used as disinfectant instead of hypochlorine.
9.
It is a colourless gas and it used to seperate carbon from water.
10.
A part of the atmosphere.
11.
Ozone is used as food for good bacteria and needs to be regulated in order to insure optimal population of bacteria in order to work at regulating bad bacteria; as the good bacteria destroys the bad bacteria.
12.
Ozone, or trioxygen, is an inorganic molecule with the chemical formula O3. It is a pale blue gas with a pungent odor and is an allotrope of oxygen. It is used in water treatment as a disinfectant.
13.
The ozone is a treatment process.
14.
Its a gas used to remove contaminants in drinking water.
15.
We are not using ozone in the water treatment process.
Question 11 of 21
How detail oriented are you?
User-Submitted Answers
1.
I pay attention to detail all the time, Istudy and reshearch all the time.
2.
My past experience in a water plant has trained me to become very detail oriented. I understand that if I am not precise with my measurments and level checks, it could cause damaging issues.
3.
I am a very detailed oriented person. I am always making sure to write numbers down correctly and making sure that I check levels and meters correctly.
4.
A water pump operates by an electric motor which rotates the pump that will increase the effluent end.
5.
I am very detailed oriented. I will search until I found an answer to a question.
6.
A water pump operates by a electric motor that rotates the pump to increase effluent end.
7.
Electricity rotates an impeller which moves water through a series of pipes.
8.
A water pump operates by an electric motor which rotates the pump that will increase the effluent end.
9.
I am very detail oriented because I know that my job depends on the records I keep.
10.
I have a diploma in water.
11.
I take notes and write questions on things that I would like to learn. I read and follow standard company guidelines.
12.
How detail oriented are you.
13.
I am very thorough and accurate in my job. I like to know all details before I tackle any work. I like to make sure I am safe and comfortable with the task. Make sure I have all the right tools. It helps me have a vision the task at hand in that way there is no surprises or no details missed.
14.
I pay attention to detail by asking questions and doing research.
15.
I pay close attention to details to prevent unnecessary errors.
Question 12 of 21
Why do you believe water treatment plants are important?
User-Submitted Answers
1.
To kill bacterias that might also be not pathogenic.
2.
People need to drink water that is 100% perufied and safe for consumption.
3.
Because as we know only 2.5 Percentage of total water is fresh water and in this 3 percenge 2 percentage are in form of ice.. So we have to treat impure water to maintain water level in all part of the world.
4.
Treatment plants treat water which keeps the public from getting sick.
5.
Yes they are very important. Our job is to see to it people receive clean and safe drinking water.
6.
To provide good clean water for that is safe for the public.
7.
Yes absolutely, I believe this because there is detail that needs to be reported back to the federal government, and there are mon.
8.
Couagulants used to remove small suspended solid particles and dust from water.
9.
To make water more hygenic.
10.
To make water more hygenic.
11.
Why do you believe water treatment plants are important.
12.
It is very important and I see it as a vital organ of a society and environment. Treatment plants takes out pathogenic organisms, debris, chemicals. It is important to treat the effluent before releasing to a body of water; untreated water can harm wildlife, fishes and damage the environment overall. This is important to human health, farmers.
13.
Water treatment plants are needed to provide clean and safe drinking water free from pathogenic microorganisms.
14.
I think they are important because they protect the environment from releasing hazardous material and also provide clean water for drinking.
15.
They turn unsafe water to usable water.
Question 13 of 21
What are the two common processes for separating water and flock?
User-Submitted Answers
1.
Water and flock can be separated in two different ways, the most sedimentation followed by filtering through media.
2.
I have ambition in delivering clean water to the environment of the living.
3.
What are the two common processes for separating water and flock.
4.
Through sumps and filters.
5.
Sedimentation anf filtration.
6.
Sedimentation and filtration.
7.
Hydrophilic collids method filtration method.
8.
Letting it settle to the bottom by gravity and using a centrifuge to separate the clean water from the flock.
9.
Coagulation and flogulation.
10.
Couagulation and flaculation.
11.
Reverse osmosis and multi stage flashing.
12.
Sedimentation followed by filtering through media.
13.
Dissolved Air Floatation plant, belt presses.
14.
Floccolation and sedimentation.
Question 14 of 21
How familiar are you with different types of pipe valves? Name a few.
User-Submitted Answers
1.
How familiar are you with different types of pipe valves? Name a few.
2.
Gate, ball, pressure relief,
3.
Ball valves, gate valves, solenoid valvles.
4.
PVC pipes 1', GI pipes 2'
5.
Butterfly, spring, and one way.
6.
Butterfly valve, gate valve, diaphragm valve.
7.
Not much... Ball valve, return valve.
8.
Pipe valves help you in flow, direction, pressure controlling.Names are Globe valve, check valve, ball valve, piston valve, control valve. Etc.
Question 15 of 21
What are coagulant chemicals used for?
User-Submitted Answers
1.
Coagulants are used to remove the finer suspended particles and dirt in source water.
2.
Coagulant is used to bring suspended particles together to settle.
3.
Sod floc and potassium permanganate.
4.
Chemicals used to gather bacteria for easier removal.
5.
Causes contaminants to clump together and sink to bottom.
6.
It is used to settle the suspended impurities in water.
7.
Remove bacteria like microbial etc.
8.
Grouping things together.
9.
It commonly used in community drinking water treatment system.
10.
Illiminating organisms from water.
11.
Coagulants bond with solids and impurities in the water and clump them together in order to isolate and remove them from the water.
12.
Conditioning the water to promote the removal of suspended particles.
13.
To solidify the waste products in the water.
14.
To remove solids from a solution - coagulant chemicals adhere to the solids and separate these out from the water phase.
Question 16 of 21
Tell me about your most difficult experience at your last water treatment plant.
User-Submitted Answers
1.
Sterkspruit water treatment plant is a manual plant, so that also gave me the experience to operate manual plant. It showed me how important to take records of pumps hour meters and pump amps hourly. It made things easy for me cause when there is a problem with the pumps I could see it earlier. That was quite an opportunity to me and it made me the good operator that I am today. And that I have the experience in operating the manual and automatic plant.
2.
At sterkspruit water treatment works. The turbidity of the raw water was below 5NTU and the final water was between 1 and 2NTU, so it was hard to get results below one. I learnt that its hard to purify water with low NTU's and we must also use lime as the flocculant assistant agent, and the pH values must be monitored. Another thing is that it was the 1st plant that I worked @ that uses lime.
3.
The most challenging situation I experienced in my previous water plant developing maps of the entire plumbing system of future use of all employees.
4.
Managing plant operators and maintaining a well operating plant.
5.
We were getting a new motor control center installed and running off a generator, when our generator went down.
6.
Well, there was a day that the lights kept going on and off because the plant engineer was testing something in the older wastewater building. We got around it by switching our schedule around and doing some outdoor work until he was finished.
7.
I face diificulty at my last job that was about ozone generator but after studying and focusing I overcome tha problem.
8.
My most difficult experience was learning the SCADA System and the way all the pipes worked.
9.
Tell me about your most difficult experience at your last water treatment plant.
10.
Hurricane rains flooding open sumps.
11.
Membrane chocking in a sewage plant is the difficult task I handled.
12.
Managing people is most difficult, most rewarding task.
13.
I was not getting typical results on our phosphorus tests during a period of extreme rain fall during the summer. Therefore I had to, first retest samples to ensure accuracy then to make adjustments to our treatment procedures.
14.
Working on time constraints during sanitization of lines, silos, flow diverters and completing the process and releasing to production.
15.
Replacement of a water pump.
Question 17 of 21
Why are you passionate about water treatment?
User-Submitted Answers
1.
A city can live for a while without power. But it would die quickly if there was no clean water. Having clean water and making sure the discharge is safe for both the environment and life downstream, both Human and Animal, is critical.
2.
It is a fascinating process and is absolutely essential. I take pride in that I am making a difference.
3.
Great job with great oppurtunites.
4.
Its challenging... You should always keep in mind that we aint just purifying water because we should... People, animals, plants eg lives are in our hands.. Thats why I love my job.
5.
I'm passionate about water treatment because we all need water to survive and if I can help improve or maintain our water supply i'm al in.
6.
I want to make a difference in the community on a daily basis. There is nothing more important than being involved in the process of treating water so people can have safe drinking water.
7.
Water treatment is one of the fastest growing sector, as the population is growing people need good quality water for domestic use and commercial use.
8.
Perform analytical tests on samples of wastewater.
9.
Water is a basic need that no one would survive without it and people who others health come first are the one needed to treat water and I am one of those.
10.
Everyone needs water to live, I want to make a difference for the future of my children.
Question 18 of 21
Do you take pride in your work? Give me an example.
User-Submitted Answers
1.
Seeing a project through its entirety from start to finish is not only very rewarding to me in my profession, but in my personal life as well.
2.
I m not take pride on my work because I m not only who is the best but I m one of the best in water tretment field because I m qalified and have expeerience.
3.
Yes, come up with suggestion to my bosses that will make a differance to the compuny.
4.
Yes I present myself as a spokesperson for the company and like to show professionaliism.
5.
By commitment of myself for serious work output.
6.
I take extreme pride in my work. Starting with my punctuality and striving for completely safe work practices. I like to plan and execute a work order from start to finish and I like the feeling of accomplishment from a job well done.
7.
Yes..I anticipate my check.
8.
Yes I take pride in my work I make sure that all my tools are inn order.
9.
Yes. I dont take shortcuts. I have my checklists and I complete them in the order that they are supposed to be done. There is no room for error with treating water. You cant discharge bad water and risk injuring people and the environment.
10.
I participate in industry wastewater operator's forum to connect with other WWTP operators, exchange ideas and share experiences.
11.
Yes... When raw water quality changes I can easily tell if its something major or not.
12.
Outsource without pride you don't have will of learning new things.
Question 19 of 21
Have you had any on the job training yet?
User-Submitted Answers
1.
I have been a water plant operator for over 28 yrs.
2.
Yes I did I have I have received my nqf level 2 certificate and now busy with my nqf level 3.
3.
Yes. I have gone through job training in project microsoft and course for drinking water treatment.
4.
Have you had any on the job training yet.
5.
I have personalty development traning.
6.
I spent over 4 months working at United Waters Waste Water Treatment Plant in Jasper. And although most of my experience was in the lab, performing daily sample and testing. I also got some experience in how to run the DAF equipment and centrifuge.
7.
Only in spring water quality assurance.
8.
No I have not. Only what I have been studying online. It has been a little difficult to find accurate information on available training in Utah for Waste-water certifications.
Question 20 of 21
Have you ever led a group before in your past employment?
User-Submitted Answers
1.
Yes I have we work toghether to put information together to move people in the battle space in AFG
2.
Yes I have led a group of 9 men conduct a 24 7 operation of a treatment plant that receives and treats 5 mega liters of water here in fiji.
3.
The last group I led was to replant a 5 acre parcel of elderberries for habit of native landscapes.
4.
Yes, I was a Sales Manager for a while at Pepsi and I was a Department Head at Walmart.
5.
Have you ever led a group before in your past employment.
6.
I was in charge of a team of four individuals, myself another operator and two labourers. I was in charge of ever aspect of repairing a flush valve. Duties included proper confined space entry, supply of appropriate tools and proper procedure regarding pump lockout and bolt loosing and tightening.
7.
Yes. Have lead a department of 30 staff.
8.
Yes at New Holland Agriculture Apprentice.
Question 21 of 21
Do you have an operator certification? What class are you?
User-Submitted Answers
1.
Yes. National Diploma in Wastewater Treatment (Level 5).
2.
I have a degree in B.Tech and certification in Piping Engineering.

About Water Treatment Operators

September 21st, 2017

Water is one of our society's most important resources. While most people take it for granted, it takes a lot of work to get water from natural sources, reservoirs, streams, and groundwater into our taps. Similarly, it is a complicated process to convert the wastewater in our drains and sewers into a form that is safe to release into the environment. Water treatment plant and system operators run the equipment, control the processes, and monitor the plants that treat water so that it is safe to drink. Liquid waste treatment plant and system operators do similar work to remove pollutants from domestic and industrial waste.

Print all Water Treatment Operators Interview Questions