biotechnology and wastewater treatment

... CROPLAND, ENERGY, LAND RECLAMATION, LANDFILL, OCEAN DISPOSAL Figure Sludge treatment processes and their functions Biotechnology for Industrial and Municipal Wastes 23 RAW WASTEWATER i PRETREATMENT SLUDGE ... oxidized to CO, and H,O As the microorganisms use the organics as food they reproduce, grow, and die As the 10 Biotechnology f o r Waste and Wastewater Treatment microorganisms grow and are mixed ... stabilization process, and the step aeration process Examples of these are given in Figure 8 Biotechnology for Waste and Wastewater Treatment Biotechnologyfor Industrial and Municipal Wastes AERATION...

Ngày tải lên: 16/03/2014, 18:11

... ENERGY, LAND RECLAMATION, LANDFILL, OCEAN DISPOSAL Figure Sludge treatment processes and their functions Content Biotechnology for Industrial and Municipal Wastes 23 RAW WASTEWATER i PRETREATMENT ... oxidized to CO, and H,O As the microorganisms use the organics as food they reproduce, grow, and die As the Content 10 Biotechnology f o r Waste and Wastewater Treatment microorganisms grow and are mixed ... stabilization process, and the step aeration process Examples of these are given in Figure Content Biotechnology for Waste and Wastewater Treatment Content Biotechnologyfor Industrial and Municipal Wastes...

Ngày tải lên: 16/03/2014, 18:11

... possible? This audit objective includes but is not limited to operational costs associated with solid waste collection, processing and disposal; and collection, treatment and conveyance of wastewater and sewage.  The performance audit was also planned and performed to address the nine elements in Initiative 900 ... The WTD’s major facilities include the two regional treatment plants, the West Point and South Treatment Plants, as well as two smaller  treatment plants on Vashon Island and in Carnation. The Brightwater Treatment Plant located in the northern part of the region is  ... facilities and Cedar Hills Regional Landfill Fleet facilities take up landfill space and should be relocated to extend the life of the landfill The County projects its Cedar Hills Regional Landfill...

Ngày tải lên: 06/03/2014, 23:20

... the water from bypassing 36 WATER AND WASTEWATER TREATMENT TECHNOLOGIES the sand The sand for a SSF needs to be clean and uniform, and of the correct size The sand can be cleaned in clean running ... Herbicide runoff Liver, kidney, and Discharge from circulatory problems rubber and plastic factories; leaching from landfills AN OVERVIEW OF WATER AND WASTEWATER TREATMENT ~~ MCLG' (mglL ) f Organic ... standards, discharge limitations, and permits If a project may result in the AN OVERVIEW OF WATER AND WASTEWATER TREATMENT 27 placement of material into waters, a Corps of Engineers' Dredge and...

Ngày tải lên: 16/03/2014, 18:11

... text Water and wastewater treatment is about mitigating the problems mentioned above However, treatment operations are about much more To handle today’s problems, water and wastewater treatment ... Questions and Problems References Chapter 18 18.1 18.2 18.3 18.4 18.5 18.6 Wastewater Treatment Wastewater Operators 18.1.1 The Wastewater Treatment Process: The Model Wastewater Terminology and DeÞnitions ... of their critical water and wastewater infrastructure The nation’s water and wastewater infrastructure consisting of several thousand publicly owned water and wastewater treatment plants, more...

Ngày tải lên: 01/04/2014, 11:46

... 674 References and Suggested Reading 676 Section V  Wastewater and Wastewater Treatment Chapter 21 Wastewater Treatment Operations 681 21.1 Wastewater Operators ... Sheboygan, Michigan, Regional Wastewater Treatment Plant 101 5.2.1.3 Big Gulch Wastewater Treatment Plant 102 5.2.1.4 City of Bartlett, Tennessee, Wastewater Treatment Plant 103 5.2.1.5 ... drink and dispose of, is described in this text xxxvii Preface to Third Edition The growing interest in water and wastewater treatment plant operations and their main products (potable water and...

Ngày tải lên: 20/06/2014, 11:32

... the water from bypassing 36 WATER AND WASTEWATER TREATMENT TECHNOLOGIES the sand The sand for a SSF needs to be clean and uniform, and of the correct size The sand can be cleaned in clean running ... Herbicide runoff Liver, kidney, and Discharge from circulatory problems rubber and plastic factories; leaching from landfills AN OVERVIEW OF WATER AND WASTEWATER TREATMENT ~~ MCLG' (mglL ) f Organic ... standards, discharge limitations, and permits If a project may result in the AN OVERVIEW OF WATER AND WASTEWATER TREATMENT 27 placement of material into waters, a Corps of Engineers' Dredge and...

Ngày tải lên: 31/07/2014, 05:20

... text Water and wastewater treatment is about mitigating the problems mentioned above However, treatment operations are about much more To handle today’s problems, water and wastewater treatment ... Questions and Problems References Chapter 18 18.1 18.2 18.3 18.4 18.5 18.6 Wastewater Treatment Wastewater Operators 18.1.1 The Wastewater Treatment Process: The Model Wastewater Terminology and DeÞnitions ... of their critical water and wastewater infrastructure The nation’s water and wastewater infrastructure consisting of several thousand publicly owned water and wastewater treatment plants, more...

Ngày tải lên: 11/08/2014, 10:22

... and wastewater operators is their working conditions Water and wastewater treatment plant operators work indoors and outdoors in all kinds of weather Operators’ work is physically demanding and ... biological treatment, sludge/biosolids treatment, biosolids land application and disposal, and flow measurements Correspondence courses covering both water and wastewater operations and preparation ... modern water and wastewater treatment plants operators are required to perform skilled treatment plant operations work and to monitor, operate, adjust and regulate a computer-based treatment process...

Ngày tải lên: 11/08/2014, 10:22

... 4 Water and Wastewater Math Operations To operate a waterworks and/ or a wastewater treatment plant, and to pass the examination for an operator’s license, ... used, and the waterworks /wastewater operator should be familiar with both 4.5 MEASUREMENTS: AREAS AND VOLUMES Water and wastewater operators are often required to calculate surface areas and volumes ... Spellman’s Standard Handbook for Wastewater Operators, Vol 1–3, Technomic Publ., Lancaster, PA, 1999.) Solution: FIGURE 4.8 Circular pipe (From Spellman, F.R., Spellman’s Standard Handbook for Wastewater...

Ngày tải lên: 11/08/2014, 10:22

... is important to have an understanding of these principles This is because the water in a waterworks and distribution system and in a wastewater treatment plant and collection system is nearly ... to withstand the expected conditions of exposure, and pipe configuration systems for water distribution and/ or wastewater collection and interceptor systems must be properly designed and installed ... strong and durable to resist the abrasive and corrosive properties of the wastewater Like water pipes, wastewater pipes must also be able to withstand stresses caused by the soil backfill material and...

Ngày tải lên: 11/08/2014, 10:22

... applications and is widely used in water and wastewater treatment operations Applications include providing electrical energy in plant vehicles and emergency diesel generators; material handling equipment ... Recall that if you know any two quantities, E and I, I and R, and E and R, you can calculate the third In many circuit applications, current is known and either the voltage or the resistance will ... hydroxide, and the positive electrode is cadmium oxide The operating voltage is 1.25 V Because of its rugged characteristics (stands up well to shock, vibration, and temperature changes) and availability...

Ngày tải lên: 11/08/2014, 10:22

... Pumping Applications Raw water and wastewater, secondary sludge return and wasting, settled primary and thickened sludge, effluent Scum, grit, sludge and raw water and wastewater Lubricating oils, ... water and wastewater treatment would exceed the limitations of this handbook Therefore, the discussion of pump applications is limited to those that occur most frequently in water and wastewater treatment ... solutions, small flows of water and wastewater Grit, settled primary and secondary sludges, thickened sludge, raw wastewater Chemical solution Scum and primary, secondary, and settled sludges; chemical...

Ngày tải lên: 11/08/2014, 10:22

... should occur in the system In 246 Handbook of Water and Wastewater Treatment Plant Operations Manufacturing Process Wastewater 60 PSIG Reclaimed wastewater Wastewater Treatment Process 30 PSIG Public ... vacuum rating 8.6.3 STANDARDS, CODES, AND SIZES Just as they have for piping and tubing, authoritative standards organizations have devised standards and codes for hoses Standards and codes are safety ... handle the fluid pressure On the other hand, copper tubing is typically designed for brazed and soldered connections, rather than threaded ones Thus, its 254 Handbook of Water and Wastewater Treatment...

Ngày tải lên: 11/08/2014, 10:22

... problem, the bubbler tube should be cleaned, the airflow adjusted, and grease removed from the assembly 288 Handbook of Water and Wastewater Treatment Plant Operations In another type of measuring device, ... corrosion-resistant wetted parts, and highly accurate output “The greatest disadvantage of this type of meter is its initial cost and the need for trained personnel to handle routine operation and maintenance.”2 ... FILL The mathematical procedure for determining flow in gallons/minute is: 286 Handbook of Water and Wastewater Treatment Plant Operations TABLE 9.1 Types of Flow Measurement Devices Typical Usea...

Ngày tải lên: 11/08/2014, 10:22

... Adsorption Coagulation Taste and odor removal (water treatment) Water softening Recarbonation Ion exchange softening Scale and corrosion control 302 Handbook of Water and Wastewater Treatment Plant Operations ... Type and amount of coagulant used Type and length of flocculation Type and length of mixing 10.10.6 TASTE AND ODOR REMOVAL Although odor can be a problem with wastewater treatment, the taste and ... intensity and nature of the physical agent, temperature, and type and number of organisms 10.10.3 CHEMICAL PRECIPITATION In wastewater treatment, chemical precipitation is used to remove phosphorus and...

Ngày tải lên: 11/08/2014, 10:22

... 336 Handbook of Water and Wastewater Treatment Plant Operations poison travels from link to link of the food chain and soon the birds of the lake margins become victims We spray our elms and the ... phosphate conditions Larger animals found in slow moving streams and rivers include newts, tadpoles, and 354 Handbook of Water and Wastewater Treatment Plant Operations frogs As mentioned, the important ... grows right in the stream or lake, such as algae, diatoms, nymphs and larvae, and fish A 356 Handbook of Water and Wastewater Treatment Plant Operations food that originates from within the stream...

Ngày tải lên: 11/08/2014, 10:22

... problems and the uncertainty of viral disinfection, direct recycling of wastewater and the practice of land application of wastewater is a cause of concern.13 380 Handbook of Water and Wastewater Treatment ... this early wastewater treatment program was to remove suspended and floatable 368 Handbook of Water and Wastewater Treatment Plant Operations material, treat biodegradable organics, and eliminate ... water and wastewater treatment operations, water quality management begins with a basic understanding of how water moves through the environment, is exposed to pollutants, and transports and deposits...

Ngày tải lên: 11/08/2014, 10:22

... 416 Handbook of Water and Wastewater Treatment Plant Operations For information on how to prepare standard concentrations and on how to collect and analyze samples, refer to Standard Methods and ... F.R., Spellman’s Standard Handbook for Wastewater Operators, Vol 1, Technomic Publ., Lancaster, PA, 1999.) 400 Handbook of Water and Wastewater Treatment Plant Operations State and local water quality ... Spellman’s Standard Handbook for Wastewater Operators, Vol 1, Technomic Publ., Lancaster, PA, 1999.) © 2003 by CRC Press LLC 404 Handbook of Water and Wastewater Treatment Plant Operations 14.3.8 STANDARDIZATION...

Ngày tải lên: 11/08/2014, 10:22

... QUALITY AND TREATMENT REQUIREMENTS PWSs must comply with applicable federal and state regulations and must provide quantity and quality water supplies including proper treatment (where and when ... of gravity, and becomes groundwater Groundwater, like surface water, is extremely important to the hydrologic cycle and to our water supplies 444 Handbook of Water and Wastewater Treatment Plant ... acids (0.060 mg/L), chlorite (1.0 mg/L), and bromate (0.010 mg/L) 448 Handbook of Water and Wastewater Treatment Plant Operations c Establishes new standards for disinfectant residuals (4.0 mg/L...

Ngày tải lên: 11/08/2014, 10:22