Pre chlorination - Study guides, Class notes & Summaries

REHS Exam - Wastewater Treatment Questions And Answers 100% Correct(Rated A+) What are the treatment processes in PRELIMINARY Wastewater Treatment? - ANSWER-Screening Comminution Grit Removal Pre-Aeration Flow Metering / Sampling What are the treatment processes in PRIMARY Wastewater Treatment? - ANSWER-Sedimentation / Flotation What are the treatment processes in SECONDARY Wastewater Treatment? - ANSWER-Biological Treatment (ie activated sludge, trickling filters, rotating biological...

What are the treatment processes in PRELIMINARY Wastewater Treatment? - ANSWER-Screening Comminution Grit Removal Pre-Aeration Flow Metering / Sampling What are the treatment processes in PRIMARY Wastewater Treatment? - ANSWER-Sedimentation / Flotation What are the treatment processes in SECONDARY Wastewater Treatment? - ANSWER-Biological Treatment (ie activated sludge, trickling filters, rotating biological contactor (RBC)) Sedimentation What are the treatment processes in TERTI...

First step of fecal accident procedure - ANSWER-Direct all bathers to leave the pool. All affected waters must be closed to swimming until proper procedures for contamination have been completed Second step of fecal accident procedure - ANSWER-Manually remove as much of the material as possible using a net or scoop and dispose of it in a sanitary manner. Clean and disinfect the scoop or net. After cleaning leave the net or scoop immersed in the pool during this infection. Vacuuming the stool ...

Water distribution practice exam #2 (D1-D2)accura Which process converts ammonia to nitrite and nitrate? - ANSWER Nitrification What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - ANSWER 40 pounds per day What is a type of positive displacement water meter? - ANSWER Nutating- disk meter What is a power-operated mechanism for opening and closing a valve? - ANSWER Actuator What is required if a routine sample test positive for total coliform bacter...

Which process converts ammonia to nitrite and nitrate? - CORRECT ANSWERNitrification What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - CORRECT ANSWER-40 pounds per day What is a type of positive displacement water meter? - CORRECT ANSWER-Nutatingdisk meter What is a power-operated mechanism for opening and closing a valve? - CORRECT ANSWER-Actuator What is required if a routine sample test positive for total coliform bacteria? - CORRECT ANSWER-T...

Air Strippers Granular Activated Carbon (GAC) - Answer-Best Available Technology (BAT) for treating VOCs (volatile organic compounds)? 24 Hours public notice 24 Hours to notify the state (primacy agency) Tier 1 violations are done by TV, radio, hand delivery - Answer-How long does a water utility have to notify the public on a Tier 1 Violation? Safe Drinking Water Act - Answer-Which regulation established MCL's? (maximum contaminant levels) Granular Activated Carbon (GAC) - Answer...

REHS exam Questions with complete Answers 2024 2 types of waste Organic- can be broken down Inorganic- cannot be broken down Oraganic Load BOD(dissolved solids)/ TSS( solids you can see) Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:07 / 0:15 Full screen What does a NPDES require? All WWTP's have to have secondary treatment with 80% BOD and TSS Wastewater characteristics Fresh wastewater- grey in color Septic...

Water distribution practice exam test 1 already passed!!!! And verified Which process converts ammonia to nitrite and nitrate? - CORRECT ANSWERNitrification What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - CORRECT ANSWER-40 pounds per day What is a type of positive displacement water meter? - CORRECT ANSWER-Nutatingdisk meter What is a power-operated mechanism for opening and closing a valve? - CORRECT ANSWER-Actuator What is required if a rout...

Primary Goals of Drinking Water Treatement - ANSWER-1. Public Health (Chemical & Biological) 2. Aesthetics (Smell & Taste) 3. Sufficient Quantity Surface Water - ANSWER-1. Usage - 70% US use 2. Large Quantity 3. Low Quality 4. Desirable - 2 Ground Water - ANSWER-1. Usage - 30% of US 2. Low Quantity 3. High Quality 4. Desirability - 1 Reuse/Saline - ANSWER-1. Usage - Low but inc. 2. Large Quantity 3. Low Quality 4. Desirability - 3 - expensive 4 Classes of Water Pollutants ...

Lecture No_3 Waste water treatment 2023 A.B@JiT 2 1.1 Introduction Waste water treatment To remove contaminants from waste water there are three mechanisms 1 . Physical Mainly physical properties like Screening Sedimentation Floatation Filtration 2. Chemical Chemical properties like Precipitation Coagulation Disinfection A.B@JiT 3 Cont’d 3. Biological The biological includes Biological filtration Activated sludge Combination of physical and chemical process Air...