An Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes
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An Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes
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Author : Battelle Memorial Institute. Columbus Laboratories
language : en
Publisher:
Release Date : 1971
An Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes written by Battelle Memorial Institute. Columbus Laboratories and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Chromium compounds categories.
Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes With Bibliography
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Author :
language : en
Publisher:
Release Date : 1971
Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes With Bibliography written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Chromium compounds categories.
An Investigation Of Techniques For Removal Of Cyanide From Electroplating Wastes
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Author : A. K. Reed
language : en
Publisher:
Release Date : 1972
An Investigation Of Techniques For Removal Of Cyanide From Electroplating Wastes written by A. K. Reed and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Cyanides categories.
Increasingly stringent stream discharge regulations have prompted an assessment of the current technology available for application to the metal finishing waste treatment problem, specifically in regard to smaller operations. Experimental laboratory and bench scale studies were then conducted on several unconventional wastewater treatment methods, including ion flotation, activated carbon adsorption, acidification volatilization, and solvent extraction. A demonstration pilot plant study was also conducted on the activated carbon process employing actual rinse waters from a zinc cyanide plating operation. The pilot scale activated carbon system was operated at 99% efficiency of cyanide removal, while providing for the complete recovery and regeneration of copper. Cost estimates for carbon sorption process are given.
An Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes
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Author : Battelle Memorial Institute. Columbus Laboratories
language : en
Publisher:
Release Date : 1971
An Investigation Of Techniques For Removal Of Chromium From Electroplating Wastes written by Battelle Memorial Institute. Columbus Laboratories and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Chromium compounds categories.
Removal Of Chromium From Plating Rinse Water Using Activated Carbon
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Author : Richard B. Landrigan
language : en
Publisher:
Release Date : 1975
Removal Of Chromium From Plating Rinse Water Using Activated Carbon written by Richard B. Landrigan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Carbon, Activated categories.
Technical Feasibility Study On The Chromium Recovery From Electroplating Effluents
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Author : Daniel Wiemken
language : en
Publisher: diplom.de
Release Date : 2014-04-11
Technical Feasibility Study On The Chromium Recovery From Electroplating Effluents written by Daniel Wiemken and has been published by diplom.de this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-11 with Technology & Engineering categories.
Inhaltsangabe:Introduction: Rapid industrialisation and growth in population over the past two hundred years exert an increasing pressure on natural resources and the environment. Billions of tons of controlled and scheduled waste are generated every year by the industrial sector worldwide which is often either pre-treated on-site or at a licensed contractor prior to disposal in landfills. This practice if continued is leading to resource depletion and creates a potentially harmful legacy for future generations. In order to move towards a more sustainable development as outlined in the Bruntland Report, waste reduction, reuse and recycling coupled with pollution prevention measures play an important part to slow down if not reverse this practice. Heavy metals such as cadmium, mercury, lead and chromium are not degradable or renewable like biomass hence if they are to be used in future processes reuse and recycling are the only options. At present, heavy metals are used in the chemical industry sector for applications ranging from batteries to catalysts and surface coatings, and can be found at various concentrations in gaseous, liquid or solid waste. Chromium is of particular interest owing to its legislative status and unique chemistry. Chromium exists in nature primarily in one of two oxidation states. There are other chemical oxidation states of chromium, which include 0, II, IV, and V, but they are considered transitory compared to more stable Cr(III) and Cr(VI) species. Hexavalent chromium is a strong oxidizer which can react with DNA causing mutation, while the trivalent, organically complex form is a dietary supplement to help with proper glucose metabolism, weight loss and muscle tone. Unlike many other metals, Cr(VI) can combine with oxygen to form water-soluble, negatively charged anions known as yellow chromate (CrO42-) or orange dichromate (Cr2O72-), which adsorb to positively charged sites in contrast to cationic metal species. Therefore, hexavalent chromium species are not strongly bonded in many soils under alkaline to slightly acidic conditions, for example. Thus, they can be very mobile in subsurface environment while other metals precipitated out and exert toxic effects on biological systems. Various well-established methods may be used to treat industrial effluents and contaminated water such as reduction and precipitation, reverse osmosis, evaporation, ion exchange and adsorption. While these processes are able to remove [...]
Report Of Investigations
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Author :
language : en
Publisher:
Release Date : 1974
Report Of Investigations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Mineral industries categories.
An Investigation Of An Alternative Technique For The Removal Of Hexavalent Chromium Contaminants From A Wastewater Stream Utilizing The Process Of Electrocoagulation
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Author : Jeramy W. LeMieux
language : en
Publisher:
Release Date : 2003
An Investigation Of An Alternative Technique For The Removal Of Hexavalent Chromium Contaminants From A Wastewater Stream Utilizing The Process Of Electrocoagulation written by Jeramy W. LeMieux and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Electrocoagulation categories.
Environmental Regulations And Technology
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Author :
language : en
Publisher:
Release Date : 1985
Environmental Regulations And Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Electroplating categories.
Water Pollution Control Research Series 12000 17 70 Projects Of The Industrial Pollution Control Branch
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Author : United States. Federal Water Quality Administration
language : en
Publisher:
Release Date : 1970
Water Pollution Control Research Series 12000 17 70 Projects Of The Industrial Pollution Control Branch written by United States. Federal Water Quality Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with categories.