Wastewater plant - Study guides, Class notes & Summaries

As an operator, you are responsible to your employer for maintaining an economical and efficient operating facility. (Ans - TRUE An operator has an obligation to the great numbers of people who rely on down stream water supplies and are totally dependent on the operator's competence and trust worthiness for their welfare (Ans - TRUE Today, the natural purification processes in rivers treat all the waste loads and keep rivers clean. (Ans - FALSE Operators are water quality protectors...

Wastewater Collector Class D License Exam Questions and Answers Already Passed Latest Updated 2024/2025 | Graded A+. I & I causes hydraulic overload on wastewater lines, lift stations and the wastewater treatment plant. a. true b. false a. true I & I, (Inflow & Infiltration) causes hydraulic overload to wastewater lines, lift stations, and treatment plants. 2. When the treatment plant is overloaded, the bypassed, spilled or under–treated wastewater pollutes rivers and streams. a. tru...

TX Class C Wastewater Treatment License Questions and Answers Rated A Preliminary Treatment the 1st stage of sewage treatment where large debris, such as sticks, grit, and rags pas through a screen followed by a grit chamber, where the flow of water is slowed enough to allow for sedimentation. What stage of treatment is grit removal usually accomplished in? preliminary treatment Rotating Biological Contactor a type of biological secondary treatment process How are protozoa (cause ...

As an operator, you are responsible to your employer for maintaining an economical and efficient operating facility. correct answers TRUE An operator has an obligation to the great numbers of people who rely on down stream water supplies and are totally dependent on the operator's competence and trust worthiness for their welfare correct answers TRUE Today, the natural purification processes in rivers treat all the waste loads and keep rivers clean. correct answers FALSE Operators are ...

Preliminary Treatment - the 1st stage of sewage treatment where large debris, such as sticks, grit, and rags pas through a screen followed by a grit chamber, where the flow of water is slowed enough to allow for sedimentation. What stage of treatment is grit removal usually accomplished in? - preliminary treatment Rotating Biological Contactor - a type of biological secondary treatment process How are protozoa (cause of amoebic dysentery) destroyed? - disinfection Other than stream d...

Wastewater Treatment Class B Test Questions and Answers 100% Correct

What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume (Ans- C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately increase pH B) pH will not be affected C) Significantly increase the pH D) Decrease the pH (Ans- D) Decrease the pH (v.1 pg 349-350) What is the purpose of a Parshall flume? A) measure turb...

The Wastewater Treatment B Test Questions and Answers (Graded A) The Wastewater Treatment B Test Questions and Answers (Graded A) The Wastewater Treatment B Test Questions and Answers (Graded A) The Wastewater Treatment B Test Questions and Answers (Graded A) Liftstations at a treatment plant or those which discharge directly to a treatment plant with an average flow greater than 0.1 MGD shall have three or more pumps or have automatically controlled variable capacity pumps, these pu...

Describe proper design of force main wastewater lines - Answer-Minimum 2 fps velocity with the smallest pump operating alone. Minimum 4 inch diameter pipe 150 psi rating. What is Standard Dimension Ratio? - Answer-Ratio of outside pipe diameter (OD) to wall thickness (PVC) Describe proper design of gravity wastewater lines. - Answer-Designed to flow half full under normal conditions at a minimum of 2 fps maximum of 10 fps. A primary clarifier should remove how much BOD and TSS? - ...

What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? (Ans- storm events Wastewater Sources & Characteristics: Combined wastewater is defined as (Ans- sanitary wastewater and stormwater runoff Wastewater Sources & Characteristics: In general, the solids content in wastewater is about (Ans- 0.1% Wastewater Sources & Characteristics: In general, what is the % of suspended solids in the total amount of solids (Ans- 3...