Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
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Question
Chapter 21.8, Problem 1MQ
Summary Introduction
Water released from wastewater treatment plant is not safe for human consumption. It can only be released in water bodies. To make water potable, further treatment steps are required which involve sedimentation, coagulation, filtration, and disinfection. All these step help in removal of harmful pathogens, elements from the water and improves its taste and odor.
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What specific purposes do sedimentation, coagulation,filtration, and disinfection accomplish in the drinking watertreatment process?
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Chapter 21 Solutions
Brock Biology of Microorganisms (14th Edition)
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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- Which statement among A-C is not applicable to flocculation, or floc formation, during wastewater treatment? A) O Filamentous bacteria enhance floc formation. B) O Flocculation is important for the production of a clear effluent stream of wastewater. O O Flocculation decreases the amount of BOD entering the effluent stream of wastewater. D) OA-C are all applicable.arrow_forwardWhat is the purpose of degerming? Does it completely eliminate microbes? What are some factors that alter the effectiveness of a disinfectant?arrow_forwardThe steps to convert chaulmoogra oil into an injectable treatment are: I. extraction II. saponification III. hydration IV. acidification V. esterificationarrow_forward
- Identify (stepwise) the process of purifying drinkingwater. What important contaminants are targeted byeach step in the process?arrow_forwardvSludge that has been completely combined with water is recycled activated sludge.What are the system's operational issues?arrow_forwardWater contaminants fall into two general categories, chemical and biological. Describe each category. What are disinfecting by-products (DBPs)? How are people exposed? What are the toxic effects? Which of the emerging public health issues related to water do you believe will have the most impact on the future of safe drinking water?arrow_forward
- What are the sanitary classification of water?arrow_forwardDescribe situations that require high-level disinfection and thosefor which medium- or low-level disinfection is adequate.arrow_forwardThe following is not an indication of a very low BOD except? A The water is healthy thus, water quality is high. B) Contamination is present. c) The available microorganisms are uninterested in consuming the available organics. The available microorganisms are dead or dying.arrow_forward
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