Control of Filamentous Bulking at the San Jose/Santa Clara Water Pollution Control Plant PDF Download
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Author: R. D. Beebe
Publisher:
ISBN:
Category : San Jose Water Pollution Control Plant (Calif.)
Languages : en
Pages : 104
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Book Description
Author: R. D. Beebe
Publisher:
ISBN:
Category : San Jose Water Pollution Control Plant (Calif.)
Languages : en
Pages : 104
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Book Description
Author: Clifford W. Randall
Publisher: CRC Press
ISBN: 9780877629221
Category : Technology & Engineering
Languages : en
Pages : 454
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Book Description
This book presents information that can be used for the design and operation of wastewater treatment plants that utilize biological nutrient removal processes, i.e., processes that utilize biological mechanisms instead of chemical mechanisms, to remove phosphorus and nitrogen from wastewaters. The book provides: basic fundamentals, concepts, and theories; design of prefermentation units, various types of BNR systems, and secondary clarifiers; retrofitting conventional activated sludge plants; modeling considerations; and special considerations for BNR systems. It includes full-scale and pilot plant case histories, design examples, and retrofit of existing plants.
Author: United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Investigations and Oversight
Publisher:
ISBN:
Category :
Languages : en
Pages : 1852
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Book Description
Author:
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 104
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Book Description
Author: Cey Murakami
Publisher:
ISBN:
Category : Sewage disposal plants
Languages : en
Pages : 426
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Book Description
Author: Water Pollution Control Federation
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 996
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Book Description
Author: Johannes Bernardus Neethling
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 808
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Book Description
Author: B. Chambers
Publisher: Water Research Centre
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 290
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Book Description
Past and future; The world scene; Education and research; The environmental factor; Marketing chemicals; Trends in raw materials; New approaches in crganic synthesis; Application in physical chemistry; Chemistry in biological research ...
Author: J. B. Neethling
Publisher:
ISBN:
Category : Bacterial growth
Languages : en
Pages : 86
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Book Description
Author: David Boone Conner
Publisher:
ISBN:
Category :
Languages : en
Pages : 322
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Book Description
This thesis investigates the problems and solutions associated with filamentous bulking at an industrial wastewater treatment plant (wwtp) and at a municipal one. The industrial plant produces a wastewater stream from manufacturing pasta. It has a wwtp comprised of two parallel aerobic activated sludge treatment systems with sizes of 52,834 and 105,669 gpd (0.2 and 0.4 ML/d). Solutions are investigated for the biomass bulking, and its accompanying foaming, poor settleability, and thickening difficulties. Methods of improving dewatering and ultimate sludge disposal are also studied. Bypassing an ammonia blowdown stream around the wwtp and dosing chlorine helps to significantly reduce filamentous bulking and enhance settleability at the wwtp. Chlorine dosing 1-4 g Cl/kg biomass/d is found to improve settling in the two parallel systems by 87% and 72%. This study also shows that a 1-5 g/L of oak sawdust could be used successfully as a ballast to improve settleability by about 70%. The 30 mgd (113.6 ML/d) municipal wwtp receives wastewater from a collection system that conveys it from municipal sources and industrial sources that are farther downstream and closer to the wwtp. As did the parallel system, this municipal wwtp also suffered from filamentous bulking due to volatile fatty acids flowing into it from anaerobic biological activity upstream in the main inflow interceptor to the wwtp. Solutions to remedy and prevent this anaerobic activity include redox potential improvement, selective disinfection, pH control and sewer cleaning, and chemical precipitation and odor control. Of these possible solutions, the most attractive options in descending order are found to be passive flushing for cleaning the interceptor, air injection to improve redox potential, and chlorine/hypochlorite dosing for successful selective disinfection. This thesis aims to investigate solutions to filamentous bulking and additional problems commonly encountered by industrial and municipal wastewater treatment processes and systems. It provides a discussion of these problems and offers suggestions to correct and prevent them with an objective of providing a better understanding of these issues. The expectation has been made that this knowledge will provide a useful means for society and the environment to realize the benefits of successful wastewater treatment in an effective and efficient manner.
