نتایج جستجو برای: tannery industry

تعداد نتایج: 192856  

2012
B. Dheeba P. Sampathkumar

Impact of anthropogenic activities of man and his environment as a result of the growing rate of industrialisation in Tamilnadu, India is of a great concern. The objective of this research was to evaluate the physical properties and heavy metal concentration of soil in different industrial areas. Soil samples were collected from seven industries like welding, cement, steel, printing, textile, p...

2016
Agata Zemleduch-Barylska Gabriela Lorenc-Plucińska

The tannery industry is a major source of anthropogenic chromium (Cr) contamination due to the large amounts of solid waste produced and its problematic management. The unique composition of tannery waste, usually high concentrations of Cr and other metals as well as organic matter and nutrients, makes it a great risk for soil and water environment but also a possible effective fertilizer for n...

2015
V. Mohan Saranya Devi

Industrial waste is one of the most essential sources of contamination in the surface environment. Among different industries, tannery industry releases huge amount of pollutants into the ecosystem. Long term disposal of the tannery wastes has resulted in wide contamination of agricultural land and water sources in different parts of India. An attempt was made to study the diversity status of d...

Journal: :Reviews of environmental contamination and toxicology 2017
Gaurav Saxena Ram Chandra Ram Naresh Bharagava

Leather industries are key contributors in the economy of many developing countries, but unfortunately they are facing serious challenges from the public and governments due to the associated environmental pollution. There is a public outcry against the industry due to the discharge of potentially toxic wastewater having alkaline pH, dark brown colour, unpleasant odour, high biological and chem...

Journal: :British journal of industrial medicine 1989
J A Randall R S Gibson

The use of hair chromium (Cr) concentrations as an index of Cr exposure of tannery workers was investigated. As has been shown earlier, Cr from Cr III compounds used in the leather tanning industry is absorbed because concentrations of Cr in serum and urine of tannery workers are significantly increased compared with corresponding concentrations for unexposed controls. Hair samples were collect...

Journal: :international journal of environmental research 2011
d. rameshraja s. suresh

a general overview on the prospective of various oxidation and combined processes in the treatment of tannery industry effluent are reported. various oxidation and combined processes such as uv/h2o2/hypochlorites, fenton and electro-oxidation, photo-chemical, photo-catalytic, electro-catalytic oxidation, wet air oxidation, ozonation, biological followed by ozone/uv/ h2o2, coagulation or ele...

2013
Huai LI Jianzheng LI Zifang CHI

Leather processing is an important industry in China, and the discharge of chromium waste has been severely circumscribed. Though traditional processes for treating chromium waste have been widely used in tannery plants, technology adopting high efficiency and economic simultaneously is deficient. In order to develop an economic treatment for tannery waste, a mixed alkali of sodium hydroxide an...

2013
R. Magesh

Disposal of tannery effluent will result in heavy metal contamination of land and will lead to many important health and environmental hazards. Aim of the work is to determine the effects of untreated tannery effluent and treated tannery effluent on seed germination and to biodegrade the effluent using fungi. Chemical methods of remove the heavy metals in tannery effluent will have metal bearin...

Journal: :international journal of environmental research 0

the effluents of tannery industries are the major source of chromium contamination in thegroundwater. in most of the sub-urban areas ground water is the major source of drinking water. for humanbeing long term exposure to chromium is detrimental. the main objective of this study is to assess thegroundwater contamination and to adopt appropriate methods and to develop suitable techniques either ...

2012
Sankar Narayan Sinha Mrinal Biswas Dipak Paul Saidur Rahaman

The application of isolated bacterial culture as biological tool for hexavalent chromium removal from tannery industry waste water was investigated. A number of bacteria tolerant to high levels of chromate (>400μgml) were isolated from tannery effluents. These isolates showed varying degree of Cr (VI) reduction under oxic and anoxic conditions at room temperature. Ten isolates were found to be ...

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