Rehs wastewater - Study guides, Class notes & Summaries

CA REHS WastewaterWastewater must reach the treatment plan in how many days? - correct answer 2 days How is sewage strength determined? - correct answer 1. measure BOD over 5 days at 20C, typically higher in summer than winter 2. suspended solids 3. COD What is the best single measure of water pollution? - correct answer BOD What is one way to determine the amount of industrial waste in water? - correct answer Chemical oxygen demand (oxidizable inorganic matter) Does cold water...

REHS WastewaterSludge and scum accumulation, and the appearance of particles of solids in the effluent from a septic tank is an indication of what? a. a failure in the absorption field b. a septic tank in need of cleaning c. a water line leak d. the need to replace the septic tank - correct answer a septic tank in need of cleaning Which of the following soils would be most suitable for subsurface absorption of wastewater? a. mottled brown and red soil b. blue soil c. grayish soil ...

REHS Exam - Wastewater Treatment Questions with correct Answers

REHS Exam: Private Onsite Wastewater Treatment And Disposal Questions With Solutions Biochemical Oxygen Demand (BOD) The difference between the initial dissolved O2 in a water sample and dissolved O2 in a duplicate sample after a stated period of time (usually 5 days). Best single measure of wastewater or polluted water. Chemical Oxygen Demand (COD) A measure of the amount of O2 chemically consumed by the oxidation of organic and oxidizable inorganic materials in a water sample. Good fo...

REHS Wastewater treatment and Disposal Quiz Questions and Correct Answers Updated Version 2023

REHS Exam: Wastewater Questions and Answers 100% correct | Updated 2024

REHS Exam Private Onsite Wastewater Treatment and Disposal Questions and Answers Latest (2024 / 2025) (Verified Answers)

REHS: Wastewater Treatment and Disposal Test Questions and Answers Latest Update 2024/2025 | 100% Verified | Graded. A watertight tank designed to slow down the movement of raw sewage and wastes passing through to the soils is known as a Choose one answer. a. pit privy b. spring house c. septic tank d. grease trap c. septic tank Sludge and scum accumulation, and the appearance of particles of solids in the effluent from a septic tank is an indication of what? Choose one answer. a. a f...