CWEA - Advanced Water Treatment Questions with correct answers
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Course
Cwea
Institution
Cwea
Indirect Potable Reuse (IPR) Correct Answer - The blending of advanced treated, recycled or reclaimed water into a natural water source (environmental barrier) that could be used for drinking (potable) water after further treatment.
Direct Potable Reuse (DPR) Correct Answer - Process of treating...
CWEA - Advanced Water Treatment Questions with
correct answers
Indirect Potable Reuse (IPR) Correct Answer - The blending of advanced treated,
recycled or reclaimed water into a natural water source (environmental barrier) that
could be used for drinking (potable) water after further treatment.
Direct Potable Reuse (DPR) Correct Answer - Process of treating wastewater to
drinkable standards and returning it to the raw water supply (distribution system)
without the use of an environmental buffer. Rather than mixing the treated water
into an aquifer or reservoir
What has led to the research of Advanced Water Treatment? Correct Answer -
Strict effluent discharge limits are pushing the development of treatment
technologies.
Most wastewater reuse is? Correct Answer - Unplanned and indirect reuse (IPR)
What is Fit for purpose? Correct Answer - It is reclaimed wastewater that is treated
to specific criteria and is reused for purposes according to its treatment.
What are the AWT processes? Correct Answer - 1. Microfiltration / Ultrafiltration
2. Reverse Osmosis / Nanofiltration
3. Advanced Oxidation (AOP)
4. Biological Aerated Filtration
5. Stabilization
6. Disinfection
, What is the Stabilization Process? Correct Answer - Adding nutrients to the treated
water so that it wont pull from pipes and etc.
How many days does IPR treated wastewater effluent need to be in Reservoir or
Basin before entering Water Treatment Facility? Correct Answer - 30 days
What does Log Removal Values measure? Correct Answer - The effectiveness of
the treatment processes. The are determined by taking the log of pathogen
concentration in the influent and effluent after treatment.
What are the 3 water quality requirements? Correct Answer - 1. Nutrients
2. Aesthetics
3. Risk to human health, such as pathogen removal
What are our primary sources of water? Correct Answer - Surface Water and
Ground Water.
During Indirect Potable reuse, how long must water stay in a natural body of water
before being used for drinking water? Correct Answer - 30 days.
Who dictates wastewater reuse? Correct Answer - The State sets their regulations.
EPA is not involved.
Who regulates the drinking water? Correct Answer - Safe Drinking Water Act.
What are the California Reuse Regulations? Correct Answer - A 12-10-10 log
removal for Viruses, Cryptosporidium and Giardia.
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