Wastewater is removed - Study guides, Class notes & Summaries

WASTEWATER B TEST EXAM 2024 WITH 100% CORRECT ANSWERS Percent of volatile solids normally in sludge - correct answer 70-80% D.O. levels in a primary clarifier - correct answer 0.5-1.0 MG/L Why are precautionary measures needed around an aeration basin? - correct answer undertow and turbulence O.S.H.A. approved trench - correct answer narrow excavation in which the depth is greater than the width; the width must be less than 15 feet What causes bulking? - correct answer 1. Excess...

Conventional Subsurface Sewage Disposal System - Answer means a disposal system that pre-treats sewage by use of a septic tank and applies effluent to the soil as described in Rule -.0 Department - Answer means the Department of Environment and Conservation. Disposal Field - Answer means the part of a subsurface sewage disposal system that utilizes the soil for absorption and treatment of septic tank effluent. Domestic Septage - Answer means either liquid or solid material r...

Waste Water Operator Treatment 1 Certification Study Guide Grade 1 Q&A WasteWater Sources & Characteristics: What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? storm events WasteWater Sources & Characteristics: Combined wastewater is defined as sanitary wastewater and stormwater runoff WasteWater Sources & Characteristics: In general, the solids content in wastewater is about 0.1% WasteWater Sources & Chara...

Texas Wastewater Class A Exam Prep Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe ...

TEXAS Wastewater Class A Exam - Complete Solutions (Answered) The parameters of the BOD test are 5 days at 20° Centigrade An Imhoff tank is what type of treatment process? Primary Standard Dimension Ratio in pve pipe is defined as Ratio of OD pipe diameter to wall thickness MSDS sheets must be kept for how many years after you have stopped using the chemical? 30 A pneumatic ejector is a lift station pumping device How should shoring be removed from a trench? from the bottom up The most commo...

The Federal Water Pollution Control Act Amendments of _____________ were passed by congress to regulate and improve the quality of effluents discharge into the streams and rivers of this country. - 1972 The goal of this legislation and of wastewater treatment is to have all public waters remain or become more suitable for__________ - Wildlife and public use As the quality of the environment declines, the quality of life ___________ - decreases All certified wastewater system operators a...

Wastewater Treatment Operator Certification Test Questions and Answers Latest 2024/2025 | 100% Correct. The name of the State Agency responsible for enforcing pollution control laws in Texas is – a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission 2. The term pathogenic means – a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacter...

(Lecture 3-5) A water contains two nitrogen species. The concentration of NH3 is 30 mg/L NH3, and the concentration of NO3 - is 5 mg/L NO3 - . What is the total nitrogen concentration in units of mg N/L? Correct Answer-25.8 mg N/L (Lecture 3-5) What pH is required to reduce a high concentration of dissolved Mg2+ to 43 mg/L? Ksp for the following reaction is 10-11.16. Mg(OH)2(s) Mg2+ + 2OH Ksp = 10-11.16 Correct Answer-Ph=9.79 (Lecture 3-5) How long will it take the carbon monoxide (CO) con...

Wastewater Treatment Operator Certification Test Questions and Answers Latest 2024/2025 | 100% Verified. The name of the State Agency responsible for enforcing pollution control laws in Texas is – a. Texas Water Development Board b. Texas Water Commission c. Texas Section of EPA d. Texas Commission on Environmental Quality e. Texas Water Resource and Conservation Commission 2. The term pathogenic means – a. Aerobic Bacteria b. Anaerobic Bacteria c. Fecal Matter d. Coliform Bacte...

Texas Wastewater Class A Exam Questions With 100% Correct Answers Seeding of BOD samples is necessary when samples - answer(All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - answerSummer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume o...