Wastewater Engineering In Questions And Answer
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Engineering
In Palestine, the existing water and wastewater/sanitation infrastructure suffers from inadequate level of skills in planning, designing, managing, operating and maintaining of the infrastructure to ensure its sustainability. Furthermore, there is no coordinated effort on human resources development aimed to build the needed managerial and technical capacity among water and wastewater service providers. So far, this sector lacks any needs-based capacity building and systematic training arrangements.
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Basic concepts of engineering drawing; Instruments and their uses; First and third angle projections; Orthographic drawings; Principal views, Isometric views; Missing lines and views; Sectional views and convention practices; Auxiliary views.
Engineering Drawing
Introduction
Basic concepts of engineering drawing; Instruments and their uses; First and third angle projections; Orthographic drawings; Principal views, Isometric views; Missing lines and views; Sectional views and convention practices; Auxiliary views.
Engineering Handbook
Introduction
This document was created based on research and the experience of Huyett staff. Invaluable technical information, including statistical data contained in the tables, is from the 26th Edition Machinery Handbook, copyrighted and published in 2000 by Industrial Press, Inc. of New York, NY. Steel making information and flowcharts were produced with information from the website of The American Iron and Steel Institute (AISI) 1140 Connecticut Ave., NW, Suite 705 Washington, D.C. 20036. Many technical definitions are from “Everything You Always Wanted to Know About Steel. . . A Glossary of Terms and Concepts,” Summer 1998 Courtesy of Michelle Applebaum, Managing Director. Copyright 2000, Salomon Smith Barney Inc. Other glossary definitions are taken from “Cutting Tool Engineering” (ISSN:0011-4189) Copyright by CTE Publications Inc. 107 W. Van Buren, Ste. 204, Chicago, IL 60605. Information regarding differences of steel grades and their properties came from the McMaster-Carr Supply Company website at www.mcmaster.com, copyright 2003 by the McMaster-Carr Supply Company. Much basic and helpful information about steel properties and usage came from Metallurgy FAQ v 1.0 Copyright 1999 Drake H. Damerau, All rights reserved, at Survivalist Books. This document is provided to customers, vendors, and associates of G.L. Huyett for technical information relating to the manufacture and sale of non-threaded industrial fasteners. As such, this document is not a design standard, design guide, or otherwise. G.L. Huyett in not engaged in part and product design, because of the unknown uses of parts made or distributed by the company. Designs must be produced and tested by our customers for individual and commercial use. As such, Huyett assumes no liability of any kind, implied or expressed, for the accuracy, scope, and completion of the information herein
Engineering Handbook
Introduction
This document was created based on research and the experience of Huyett staff. Invaluable technical information, including statistical data contained in the tables, is from the 26th Edition Machinery Handbook, copyrighted and published in 2000 by Industrial Press, Inc. of New York, NY. Steel making information and flowcharts were produced with information from the website of The American Iron and Steel Institute (AISI) 1140 Connecticut Ave., NW, Suite 705 Washington, D.C. 20036. Many technical definitions are from “Everything You Always Wanted to Know About Steel. . . A Glossary of Terms and Concepts,” Summer 1998 Courtesy of Michelle Applebaum, Managing Director. Copyright 2000, Salomon Smith Barney Inc. Other glossary definitions are taken from “Cutting Tool Engineering” (ISSN:0011-4189) Copyright by CTE Publications Inc. 107 W. Van Buren, Ste. 204, Chicago, IL 60605. Information regarding differences of steel grades and their properties came from the McMaster-Carr Supply Company website at www.mcmaster.com, copyright 2003 by the McMaster-Carr Supply Company. Much basic and helpful information about steel properties and usage came from Metallurgy FAQ v 1.0 Copyright 1999 Drake H. Damerau, All rights reserved, at Survivalist Books. This document is provided to customers, vendors, and associates of G.L. Huyett for technical information relating to the manufacture and sale of non-threaded industrial fasteners. As such, this document is not a design standard, design guide, or otherwise. G.L. Huyett in not engaged in part and product design, because of the unknown uses of parts made or distributed by the company. Designs must be produced and tested by our customers for individual and commercial use. As such, Huyett assumes no liability of any kind, implied or expressed, for the accuracy, scope, and completion of the information herein
Engineering Bulletin
Introduction:
Founded in 1981, Purolite is a leading manufacturer of ion exchange, catalyst, adsorbent and specialty resins. With global headquarters in the United States, Purolite is the only company that focuses 100% of its resources on the development and production of resin technology. Responding to the needs of our customers, Purolite has built the largest technical sales force in the industry, the widest variety of products and five strategically located Research and Development groups. Our ISO 9001 certified manufacturing facilities in the U.S.A, Romania and China combined with more than 40 sales offices in 30 countries ensure complete worldwide coverage.
Engineering Bulletin
Introduction:
Founded in 1981, Purolite is a leading manufacturer of ion exchange, catalyst, adsorbent and specialty resins. With global headquarters in the United States, Purolite is the only company that focuses 100% of its resources on the development and production of resin technology. Responding to the needs of our customers, Purolite has built the largest technical sales force in the industry, the widest variety of products and five strategically located Research and Development groups. Our ISO 9001 certified manufacturing facilities in the U.S.A, Romania and China combined with more than 40 sales offices in 30 countries ensure complete worldwide coverage.
New Advances In Aerobic Granular Sludge Technology Using Continuous Flow Reactors: Engineering And Microbiological Aspects
Abstract
Aerobic granular sludge (AGS) comprises an aggregation of microbial cells in a tridimen sional matrix, which is able to remove carbon, nitrogen and phosphorous as well as other pollutants in a single bioreactor under the same operational conditions. During the past decades, the feasibility of implementing AGS in wastewater treatment plants (WWTPs) for treating sewage using fundament tally sequential batch reactors (SBRs) has been studied. However, granular sludge technology using SBRs has several disadvantages. For instance, it can present certain drawbacks for the treatment of high flow rates; furthermore, the quantity of retained biomass is limited by volume exchange.
Therefore, the development of continuous flow reactors (CFRs) has come to be regarded as a more competitive option. This is why numerous investigations have been undertaken in recent years in search of different designs of CFR systems that would enable the effective treatment of urban and industrial wastewater, keeping the stability of granular biomass. However, despite these efforts, satisfactory results have yet to be achieved. Consequently, it remains necessary to carry out new technical approaches that would provide more effective and efficient AGS-CFR systems. In particular, it is imperative to develop continuous flow granular systems that can both retain granular biomass and efficiently treat wastewater, obviously with low construction, maintenance and exploitation cost. In this review, we collect the most recent information on different technological approaches aimed at establishing AGS-CFR systems, making possible their upscaling to real plant conditions. We discuss the advantages and disadvantages of these proposals and suggest future trends in the application of aerobic granular systems. Accordingly, we analyze the most significant technical and biological implications of this innovative technology.
New Advances In Aerobic Granular Sludge Technology Using Continuous Flow Reactors: Engineering And Microbiological Aspects
Abstract
Aerobic granular sludge (AGS) comprises an aggregation of microbial cells in a tridimen sional matrix, which is able to remove carbon, nitrogen and phosphorous as well as other pollutants in a single bioreactor under the same operational conditions. During the past decades, the feasibility of implementing AGS in wastewater treatment plants (WWTPs) for treating sewage using fundament tally sequential batch reactors (SBRs) has been studied. However, granular sludge technology using SBRs has several disadvantages. For instance, it can present certain drawbacks for the treatment of high flow rates; furthermore, the quantity of retained biomass is limited by volume exchange.
Therefore, the development of continuous flow reactors (CFRs) has come to be regarded as a more competitive option. This is why numerous investigations have been undertaken in recent years in search of different designs of CFR systems that would enable the effective treatment of urban and industrial wastewater, keeping the stability of granular biomass. However, despite these efforts, satisfactory results have yet to be achieved. Consequently, it remains necessary to carry out new technical approaches that would provide more effective and efficient AGS-CFR systems. In particular, it is imperative to develop continuous flow granular systems that can both retain granular biomass and efficiently treat wastewater, obviously with low construction, maintenance and exploitation cost. In this review, we collect the most recent information on different technological approaches aimed at establishing AGS-CFR systems, making possible their upscaling to real plant conditions. We discuss the advantages and disadvantages of these proposals and suggest future trends in the application of aerobic granular systems. Accordingly, we analyze the most significant technical and biological implications of this innovative technology.
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