Design of Sanitary Sewers
Design of Sanitary Sewers Course
Credit to: http://www.PDHSite.com
Course Author: J.N. Ramaswamy, Ph.D., P.E.
Introduction:
Sewer systems are essential for the public health and welfare in all areas of concentrated population and development. Every community produces water‐borne wastes of domestic, commercial, and industrial origin. Sewers perform the virtually needed functions of collecting these wastes and conveying them to points of discharge or disposal.
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Guidelines for Drinking-Water Quality
The primary purpose of the Guidelines for drinking-water quality is the protection of public health. The Guidelines provide the recommendations of the World Health Organization (WHO) for managing the risk from hazards that may compromise the safety of drinking-water. The recommendations should be
considered in the context of managing the risk from other sources of exposureto these hazards, such as waste, air, food and consumer products.
Guidelines for Drinking-Water Quality
The primary purpose of the Guidelines for drinking-water quality is the protection of public health. The Guidelines provide the recommendations of the World Health Organization (WHO) for managing the risk from hazards that may compromise the safety of drinking-water. The recommendations should be
considered in the context of managing the risk from other sources of exposureto these hazards, such as waste, air, food and consumer products.
Chapter 3. Activated Carbon Columns Plant Design
Maybe, the first question that we have to ask ourselves is related to the decision of an adsorprtion process using activated carbon for the removal of micro pollutants is efficient. The theory says that the adsorbability of an organic molecule increases with increasing molecular weight and decreasing solubility and polarity. This means that high molecular weight compounds with low solubility, such as most pesticides, are well adsorbed, so the first idea is plenty justified.
Chapter 3. Activated Carbon Columns Plant Design
Maybe, the first question that we have to ask ourselves is related to the decision of an adsorprtion process using activated carbon for the removal of micro pollutants is efficient. The theory says that the adsorbability of an organic molecule increases with increasing molecular weight and decreasing solubility and polarity. This means that high molecular weight compounds with low solubility, such as most pesticides, are well adsorbed, so the first idea is plenty justified.
Design And Analysis of Pressure Disc Type Filter
Abstract:
Presently used Filters for Beverages making industries are very bulky in shape and gives low outlet discharge. Hence they are less efficient .Therefore there is a need to design compact, automated unit that produces completely clear liquor and which have large outlet discharge. This concept highlights the design of new filter which fulfill the requirements of beverages making industries for filtration. For making filtration more feasible, unit is to be design in which multiple disc comprising of blades is to be mounted on a shaft for filtration. Multiple discs will get patterned throughout the shaft and number of disc decides the capacity of filter. The special arrangement of Two cake discharge blades (scrapper remover) suspended from a frame mounted on the tank and serve to deflect and guide the cake to the discharge tube. On large diameter filters, the blades are of the swing type that float to maintain the cake to disc clearance and so allow for the wobble of the turning discs.
Design And Analysis of Pressure Disc Type Filter
Abstract:
Presently used Filters for Beverages making industries are very bulky in shape and gives low outlet discharge. Hence they are less efficient .Therefore there is a need to design compact, automated unit that produces completely clear liquor and which have large outlet discharge. This concept highlights the design of new filter which fulfill the requirements of beverages making industries for filtration. For making filtration more feasible, unit is to be design in which multiple disc comprising of blades is to be mounted on a shaft for filtration. Multiple discs will get patterned throughout the shaft and number of disc decides the capacity of filter. The special arrangement of Two cake discharge blades (scrapper remover) suspended from a frame mounted on the tank and serve to deflect and guide the cake to the discharge tube. On large diameter filters, the blades are of the swing type that float to maintain the cake to disc clearance and so allow for the wobble of the turning discs.
Community Public Water Systems Design Criteria
Introduction:
This publication is a revised edition of our Design Criteria for Community Public Water Systems. They have been prepared as a guide to water systems, design engineers, and our own staff. There has been no attempt to address every situation. We also know that there will be occasions when these criteria will not apply. Exceptions will be handled on an individual basis. The Tennessee Safe Drinking Water Act of 1983 requires The Department of Environment & Conservation to: "Exercise general supervision over the construction of public water systems throughout the state. Such general supervision shall include all the features of construction of public water systems which do or may affect the sanitary quality or the quantity of the water supply. No new construction shall be done nor shall any change be made in any public water system until the plans for such new construction or change have been submitted and approved by the department." (Extract of part of Section 68-221-706, Tennessee Code) Where the terms shall and must are used, it is intended to be a mandatory requirement. Other terms such as should, recommend, preferred, and the like, are intended to show desirable equipment, procedures, or methods. We encourage development of new methods and equipment. However, any new developments must be demonstrated to be satisfactory before we can approve their use. Operating data from other installations, or demonstration of the equipment by a manufacturer's representative, or both, may be needed for our review. These criteria are a compilation of information from a number of sources. The principle source, however, is Recommended Standards for Water Works, 1982 Edition. This publication is a report of "The Committee of the Great Lakes Upper Mississippi River Board of State Sanitary Engineers" and is commonly known as Ten-State Standards.
Community Public Water Systems Design Criteria
Introduction:
This publication is a revised edition of our Design Criteria for Community Public Water Systems. They have been prepared as a guide to water systems, design engineers, and our own staff. There has been no attempt to address every situation. We also know that there will be occasions when these criteria will not apply. Exceptions will be handled on an individual basis. The Tennessee Safe Drinking Water Act of 1983 requires The Department of Environment & Conservation to: "Exercise general supervision over the construction of public water systems throughout the state. Such general supervision shall include all the features of construction of public water systems which do or may affect the sanitary quality or the quantity of the water supply. No new construction shall be done nor shall any change be made in any public water system until the plans for such new construction or change have been submitted and approved by the department." (Extract of part of Section 68-221-706, Tennessee Code) Where the terms shall and must are used, it is intended to be a mandatory requirement. Other terms such as should, recommend, preferred, and the like, are intended to show desirable equipment, procedures, or methods. We encourage development of new methods and equipment. However, any new developments must be demonstrated to be satisfactory before we can approve their use. Operating data from other installations, or demonstration of the equipment by a manufacturer's representative, or both, may be needed for our review. These criteria are a compilation of information from a number of sources. The principle source, however, is Recommended Standards for Water Works, 1982 Edition. This publication is a report of "The Committee of the Great Lakes Upper Mississippi River Board of State Sanitary Engineers" and is commonly known as Ten-State Standards.
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