Brock Biology Of Microorganisms - Package
14th Edition
ISBN: 9780134462660
Author: MADIGAN
Publisher: PEARSON
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Chapter 21.11, Problem 2MQ
- Prior to better regulatory control of metal release into domestic wastewater systems, crown corrosion of sewer tiles was less of a problem. Why?
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Chapter 21 Solutions
Brock Biology Of Microorganisms - Package
Ch. 21.1 - What is required to oxidize CuS under anaerobic...Ch. 21.1 - What key role does Acidithiobacillus ferrooxidans...Ch. 21.2 - In what oxidation state is iron in the mineral...Ch. 21.2 - Prob. 2MQCh. 21.3 - Which reaction, oxidation or reduction, is key to...Ch. 21.3 - Prob. 2MQCh. 21.4 - Why do petroleum-degrading bacteria need to attach...Ch. 21.4 - Prob. 2MQCh. 21.5 - Prob. 1MQCh. 21.5 - What is reductive dechlorination and how does it...
Ch. 21.5 - What main advantage do microbial plastics have...Ch. 21.6 - Prob. 1MQCh. 21.6 - Prob. 2MQCh. 21.6 - Other than treated water, what are the final...Ch. 21.7 - Prob. 1MQCh. 21.7 - Prob. 2MQCh. 21.8 - Prob. 1MQCh. 21.8 - What general procedures are used to reduce...Ch. 21.8 - Prob. 3MQCh. 21.9 - Prob. 1MQCh. 21.9 - Prob. 2MQCh. 21.10 - Prob. 1MQCh. 21.10 - Why is accelerated microbial corrosion of iron...Ch. 21.11 - Prob. 1MQCh. 21.11 - Prior to better regulatory control of metal...Ch. 21 - Prob. 1RQCh. 21 - QWhich Bacteria and Archaea play a major role in...Ch. 21 - REVIEW QUESTIONS
3. Describe a strategy for...Ch. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - QTrace the treatment of wastewater in a typical...Ch. 21 - Prob. 7RQCh. 21 - QIdentify (stepwise) the process of purifying...Ch. 21 - Prob. 9RQCh. 21 - Prob. 10RQCh. 21 - Prob. 11RQCh. 21 - Prob. 1AQCh. 21 - Why is reduction of BOD in wastewater a primary...Ch. 21 - Prob. 3AQ
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- A given municipal wastewater can be treated with the following methods. N + AS, Activated sludge with pre-denitrificationAS + N Activated sludge with post-denitrificationor UCT (Biological Phosphorus Purification designed at the University of Cape Town) Which process needs the greatest addition of lime? (choose the right answer) AS + N N + AS UCT Everyone needs the same amount of additivesarrow_forwardWhich of the following is not a stage in purification of drinking water?a. filtration b. chlorination c. activated sludge d. sedimentationarrow_forwardHow to reduce/control selenium pollution?arrow_forward
- Given the figure below explain the effect of surfactants in terms of dirt removal on the solid surface.arrow_forwardHow to reduce/control copper pollution?arrow_forwardMost of the chemicals included in the kit can be discarded down a drain with copious amounts of water. Describe a situation in which you would need to neutralize a chemical before discarding down a drain.arrow_forward
- Why is reduction of BOD in wastewater a primary goal ofwastewater treatment? What are the consequences ofreleasing wastewater with a high BOD into local watersources such as lakes or streams?arrow_forwardWhat personal efforts can you and others commit to reduce the number of plastic bottles that end up in the landfill? Provide at least 2 examples of how to reduce your use of plastic bottles. Describe what leachate is and how it is formed. Be specific in the steps of how it forms. What are the potential health issues of leachate? How could that affect persons living closest to the landfill?arrow_forwardWhy is it important to reduce the amount of biodegradable organic matter and nutrients during sewage treatment?arrow_forward
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