Author: B. J. Finlayson
Publisher:
ISBN:
Category : Aquatic animals
Languages : en
Pages : 128

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Author: B. J. Finlayson
Publisher:
ISBN:
Category : Aquatic animals
Languages : en
Pages :

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Author: Endel Sepp
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Endel Sepp
Publisher:
ISBN:
Category : Aquatic organisms
Languages : en
Pages : 268

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Author: United States. Environmental Protection Agency. Office of Research and Development
Publisher:
ISBN:
Category :
Languages : en
Pages : 100

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Author: B. J. Finlayson
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Rehab Ibrahim Khawaga
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 112

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"Chlorination in wastewater treatment is regarded as a complicated process due to its ammonia and nitrite content. Chlorine added to such systems reacts with ammonia undergoing episodes of complex reactions, resulting in the chlorination breakpoint behavior. Most of the available chlorination mechanistic models are not easily applied which have restricted their practical utilization in treatment plants. In this study, a new mechanistic model for the chlorination breakpoint in an ammonia-nitrite system was developed with a user-friendly interface designed to be applicable to conditions occurring in wastewater treatment plants. The model was validated against laboratory studies reported in the literature and was also applied to forecast the chlorine residue in a wastewater treatment plant in the region. The model simulated both experimental and field data with high precision. Using the devised model, a full 43 factorial design was carried out to investigate the main effects of ammonia, nitrite, contact time, and their interactions. The outcome of the factorial designs has shown that as the ammonia proportion increases in the system, its effect prevails and diminishes that of nitrite. The carried out studies showed that this phenomenon occurs at ammonia/nitrie (A/N) ratio of 3. Artificial Neural Network modelling (ANN) was also applied to forecast the doses at which maximum and minimum total residual chlorine (TRC) of the breakpoint curve occur based on data generated using the developed model. ANN modelling was then integrated with fuzzy logic control (FLC) to optimize the chlorination process by minimizing its cost and maximizing its efficiency while operating within the plant’s budget. The developed FLC platform was applied to the Jebel Ali wastewater treatment plant and was able to improve the disinfection quality and reduce chlorine gas consumption by 18.18 %."--Abstract.

Author: Black & Veatch Corporation
Publisher: John Wiley & Sons
ISBN: 1118210557
Category : Science
Languages : en
Pages : 1109

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Book Description
New edition covers the latest practices, regulations, and alternative disinfectants Since the publication of the Fourth Edition of White's Handbook of Chlorination and Alternative Disinfectants more than ten years ago, the water industry has made substantial advances in their understanding and application of chlorine, hypochlorite, and alternative disinfectants for water and wastewater treatment. This Fifth Edition, with its extensive updates and revisions, reflects the current state of the science as well as the latest practices. Balancing theory with practice, the Fifth Edition covers such important topics as: Advances in the use of UV and ozone as disinfectants Alternative disinfectants such as chlorine dioxide, iodine, and bromine-related products Advanced oxidation processes for drinking water and wastewater treatment New developments and information for the production and handling of chlorine Latest regulations governing the use of different disinfectants For each disinfectant, the book explains its chemistry, effectiveness, dosing, equipment, and system design requirements. Moreover, the advantages and disadvantages of each disinfectant are clearly set forth. References at the end of each chapter guide readers to the primary literature for further investigation. Authored and reviewed by leading experts in the field of water and wastewater treatment, this Fifth Edition remains an ideal reference for utilities, regulators, engineers, and plant operators who need current information on the disinfection of potable water, wastewater, industrial water, and swimming pools.

Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 748

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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 566

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