Podcast
Questions and Answers
What is the main purpose of the aeration tank in a wastewater treatment plant?
What is the main purpose of the aeration tank in a wastewater treatment plant?
- To settle out flocs
- To remove pathogens
- To oxidize sewage organic matter into CO2 and water (correct)
- To trap nitrogen and phosphorus
Which treatment process is responsible for transferring flocs to a settling tank for removal of organic matter?
Which treatment process is responsible for transferring flocs to a settling tank for removal of organic matter?
- Trickling filters
- Secondary treatment
- Sludge digestion
- Primary treatment (correct)
What type of microorganisms are present in trickling filters or biofilters?
What type of microorganisms are present in trickling filters or biofilters?
- Pathogens
- Methane-producing bacteria
- Anaerobic bacteria
- Aerobic microbes (correct)
Which treatment process is specifically designed to remove essentially all the BOD, nitrogen, and phosphorus from wastewater?
Which treatment process is specifically designed to remove essentially all the BOD, nitrogen, and phosphorus from wastewater?
What is the main byproduct generated by anaerobic sludge digesters in wastewater treatment?
What is the main byproduct generated by anaerobic sludge digesters in wastewater treatment?
Which treatment method involves cleaner water trickling through pipes at the bottom of the filter for additional treatment?
Which treatment method involves cleaner water trickling through pipes at the bottom of the filter for additional treatment?
What is the primary purpose of primary treatment in wastewater treatment?
What is the primary purpose of primary treatment in wastewater treatment?
Which stage of treatment is designed to remove most of the organic matter and reduce the BOD by up to 95%?
Which stage of treatment is designed to remove most of the organic matter and reduce the BOD by up to 95%?
What is the main function of activated sludge systems in wastewater treatment?
What is the main function of activated sludge systems in wastewater treatment?
How does trickling filters differ from activated sludge systems in secondary treatment?
How does trickling filters differ from activated sludge systems in secondary treatment?
In which stage of wastewater treatment are aeration and settling tanks typically utilized?
In which stage of wastewater treatment are aeration and settling tanks typically utilized?
What is the major difference between primary and secondary treatments in wastewater treatment?
What is the major difference between primary and secondary treatments in wastewater treatment?
What is the primary objective of wastewater treatment?
What is the primary objective of wastewater treatment?
Which of the following is NOT considered a main source of water pollution according to the text?
Which of the following is NOT considered a main source of water pollution according to the text?
How is the total organic carbon (TOC) different from biologically usable carbon measured by the BOD test?
How is the total organic carbon (TOC) different from biologically usable carbon measured by the BOD test?
Which parameter is used to measure the amount of oxygen required by aerobic bacteria for biodegradation over a five-day period at 20°C?
Which parameter is used to measure the amount of oxygen required by aerobic bacteria for biodegradation over a five-day period at 20°C?
Which wastewater treatment process involves the use of microorganisms in an aerated tank to break down organic matter?
Which wastewater treatment process involves the use of microorganisms in an aerated tank to break down organic matter?
