microbiology of wastewater treatment aerobic process

Ngày tải lên: 05/09/2013, 10:15

... nature of wastewater has led to the development of the present system of treatment found in nearly all the technically-developed countries, which is based on treating large volumes of weak wastewater. In ... food processing. January 19, 2004 14:33 World Scientific Biology of Wastewater Treatmen t (New Edition) bwt Preface to the Second Edition Since writing the first edition of Biology of Wastewater Treatment ... solids). The total volume of wastewater produced per capita depends on the water usage, the type of sewerage system used and the level of infiltration. BIOLOGY OF WASTEWATER TREATMENT January 19,...

Ngày tải lên: 16/03/2014, 18:09

Ngày tải lên: 05/09/2013, 08:40

Ngày tải lên: 05/09/2013, 09:08

Ngày tải lên: 05/09/2013, 10:15

Ngày tải lên: 05/09/2013, 10:15

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Ngày tải lên: 05/09/2013, 15:28

Ngày tải lên: 05/09/2013, 17:03

... Falling Below Zero Quality of Treated Wastewater Quantity of Treated Wastewater Regeneration of the Park Average vs profile 1 0.7144 0.7144 0.7144 Average vs profile 2 0.6715 0.6715 ... utility of any attributes not included in choice specific wastewater treatment programme attributes, n is the number of wastewater treatment programme attributes considered, and the vectors of ... number of wastewater treatment programme attributes considered and the vector of coefficients 1 to n are attached to the vector of attributes ( Z ). In this specification, m is the number of...

Ngày tải lên: 18/02/2014, 01:20

Ngày tải lên: 18/02/2014, 04:20

... thus permit the possible management of an optimum size. Anaerobic wastewater treatment produces con- siderably less biomass than aerobic treatment (Table 4) and with the beneđt of methane gas as a by-product. ... typical Domestic sludge anaerobic a 0.04±0.1 0.06 Protein anaerobic a 0.05±0.09 0.024 Fatty acids anaerobic a 0.04±0.07 0.05 Carbohydrate anaerobic a 0.02±0.04 0.075 Domestic wastewater aerobic b 0.4±0.8 ... limiting biosynthesis. Comparison of the oxic settling anaerobic process with a conventional activated sludge process, each with a sludge age of 5 d, found the yields of biomass obtained were in the...

Ngày tải lên: 11/03/2014, 23:04

... Ingestion of Increased risk of cancer 12/08/03: 12/08/03: asof I I zero I as of I as of /Increased risk of cancer, kidney Sources of Contaminant in Drinking Water Decay of natural ... scaling of heat exchange equipment). The number and complexity of unit processes and in turn unit operations comprising a water purification or wastewater treatment facility are functions of the ... requirements of the treated water, the nature and degree of contamination of the incoming water (raw water to the plant), and the quantities of water to be processed. This means then, that water treatment...

Ngày tải lên: 16/03/2014, 18:11

... bearing 18 O. Comparison of the signal intensity or half-width of the 13 C-enriched signal of the 13 CO-carbonyl carbon with that of the 13 C 18 O-carbonyl carbon of each 13 C 18 O-amide group of 13 C, 18 O-vitamin ... characteristic aerobic processes of hydroxylation at C20 by molecular oxygen catalyzed by CobG, for- mation of the c-lactone from the ring A acetate group at C1, and migration of ring D by cleavage of the ... con- firm the mechanism of the anaerobic ring contraction process in P. shermanii for comparison with the result of the aerobic feeding experiments. Results and Discussion Aerobic feeding experiments...

Ngày tải lên: 23/03/2014, 09:20

... determination of the suitable content of polymer A101 with the circulation time, the speed of the stir to the effect of the treatment processing. Propose the suitable factors for the treatment processing ... 97.7 The impact of pH to the effect of the treatment processing 80,0 85,0 90,0 95,0 100,0 4 5 6 7 8 9 10 pH Effect (%) Fig 1. The impact of pH to the effect of the treatment processing. N.B. ... the content of the polymer A101 was 5 mg/l. 3.4. The flow sheet of the treatment of the liquid radioactive waste Nong Son uranium ore processing The flow sheet of the treatment of the liquid...

Ngày tải lên: 28/03/2014, 15:20

... Problems Reference Chapter 17Water Treatment Operations and Unit Processes 17.1Introduction 17.2Waterworks Operators 17.3Purpose of Water Treatment 17.4Stages of Water Treatment 17.5Pretreatment 17.5.1Aeration 17.5.2Screening 17.5.3Chemical ... purpose of wastewater treatment has been to protect the health and well being of our communities. Water and wastewater treatment operations have accomplished this goal by (1) prevention of disease ... Review Questions and Problems References Chapter 1 8Wastewater Treatment 18. 1Wastewater Operators 18.1.1The Wastewater Treatment Process: The Model 18. 2Wastewater Terminology and Deịnitions 18.2.1Terminology...

Ngày tải lên: 01/04/2014, 11:46

... 487 14.14.5 Helminths 488 14.15 Wastewater Treatment and Microbiological Processes 488 14.15.1 Aerobic Process 488 14.15.2 Anaerobic Process 488 14.15.3 Anoxic Process 489 14.15.4 Photosynthesis ... 99 5.2 Treatment Process Models 99 5.2.1 Additional Wastewater Treatment Models 99 5.2.1.1 Green Bay, Wisconsin, Metropolitan Sewerage District 99 5.2.1.2 Sheboygan, Michigan, Regional Wastewater Treatment ... 619 Chapter 20 Water Treatment Operations 621 20.1 Introduction 621 20.2 Waterworks Operators 621 20.3 Purpose of Water Treatment 622 20.4 Stages of Water Treatment 622 20.5 Pretreatment 623 20.5.1...

Ngày tải lên: 20/06/2014, 11:32

... concerns in the operation of wastewater treatment plants. The identification and eventual control of bioflocculation mechanisms is therefore of major interest [4]. The formation of stable biological ... operation of the process. In many cases, the efficiency of the clarifier is the limiting factor in producing a high quality effluent, and it is often regarded as the bottleneck of the process ... clarifier is one of the most critical operations in the activated sludge process. Bioflocculation of activated sludge determines how the sludge will dewater, flow, and settle, all of which are...

Ngày tải lên: 27/06/2014, 13:20

... fundamental viewpoint. All processes are comprised of a number of unit processes, which are in turn made up of unit operations. Unit processes are distinct stages of a manufacturing operation. ... of a water treatment plant AN OVERVEW OF WA1'ER AND WASTEWATER TREATMENT 29 e added a program requiring states to develop and implement programs to control nonpoint sources of ... component of drinking water and wastewater treatment applications. It is, however, but one unit process within a modern water treatment plant scheme, whereby there are a multitude of equipment...

Ngày tải lên: 31/07/2014, 05:20

... treat- ment of soluble wastes in anaerobic lagoons, anaerobic filters, etc. One of the important advantages of anaerobic processes over aerobic processes is a high percentage conversion of organic ... conventional anaerobic treatment process. McCarty 44 has grouped the basic anaerobic process designs into Conventional Process, Anaerobic Activated Sludge Process, and Anaerobic Filter Process. ... Sequential mechanism of anaerobic waste treatment. BIOLOGICAL TREATMENT OF WASTEWATER 155 TABLE 3 Stimulatory and inhibitory concentrations of light metal cations to anaerobic processes Cation...

Ngày tải lên: 10/08/2014, 20:20