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TREATMENT OF WASTES FROM TANNERIES IN INDIA presentation


Posted by: seminar presentation
Created at: Sunday 16th of May 2010 03:17:21 AM
Last Edited Or Replied at :Sunday 01st of August 2010 05:44:23 AM
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complish the tanning process are chromium or tannin, an acidic chemical compound which is extracted from the bark of trees such as chestnut, oak etc.
These processes prevent putrefaction and rotting of hide under humid conditions and permanently alters the protein structure of skin to leather.
Different types of hides (or skins) are used for leather production including those of the cow, sheep, goat, ox, horse, pig and other animals.
There are approximately 113 leather tanning facilities in India.
The number of tanneries in India has significantly decreased in the last 40 years due to..................[:=> Show Contents <=:]



EFFECTS OF NANOTECHNOLOGY AND MEMS ON ENVIRONMENT


Posted by: seminar class
Created at: Wednesday 16th of February 2011 05:14:52 AM
Last Edited Or Replied at :Saturday 12th of March 2011 01:16:27 AM
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ring materials. Scientists interested primarily in the design of novel materials with exceptional physical properties for high performance in adverse conditions
What is MEMS?
It is a technology of the very small and emerges at the nano scale into nanotechnology and nano-electrochemical system (NEMS). MEMS are made up of components between 1 to 100 micrometers in size (i.e. 0.001 to 0.1 mm) and MEMS devices generally range in size from 20 micrometers (20 millionths of a meter) to a millimeter.
MEMS became practical once they could be fabricated using modified semiconductor device fa..................[:=> Show Contents <=:]



water pollution index


Posted by: bakerking0831
Created at: Wednesday 26th of January 2011 10:40:28 PM
Last Edited Or Replied at :Wednesday 26th of January 2011 10:40:28 PM
water pollution index , water pollution information, about water pollution , water pollution for kids, water pollution solutions , causes of water pollution, water pollution environment , of water pollution, water pollution issues , water quality index, water pollution prevention , what is water pollution, water pollution , water, pollution , index, water pollution , water pollution index, pollution indices margalef ppt ,
can you give me the importan..................[:=> Show Contents <=:]



TREATMENT OF WASTES FROM TANNERIES IN INDIA presentation


Posted by: seminar presentation
Created at: Sunday 16th of May 2010 03:17:21 AM
Last Edited Or Replied at :Sunday 01st of August 2010 05:44:23 AM
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ities in India.
The number of tanneries in India has significantly decreased in the last 40 years due to the development of synthetic substitutes for leather, increased leather imports, and environmental regulations.


¢ INDUSTRY DESCRIPTION & PRACTICES

Leather production usually involves three distinct phases:
(a) preparation (in the beamhouse);
(b) tanning (in the tanyard); and
(c) finishing, including dyeing and surface treatment. A wide range of processes and chemicals (including chrome salts) are used in the tanning and finishing processes.



¢ TANNING..................[:=> Show Contents <=:]



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