نتایج جستجو برای: leather industry
تعداد نتایج: 194029 فیلتر نتایج به سال:
BACKGROUND In spite of the dramatic decline in the incidence of stomach cancer in the twentieth century, Poland has one of the highest rates in the world. AIMS To evaluate the risk of stomach cancer by grouped occupations and industries, as well as by some specific occupational exposures. METHODS Cases (n = 443) were newly diagnosed with stomach adenocarcinomas between 1994 and 1996. Contro...
Release of leather industry effluents into the agricultural fields causes indicative changes in nutrient cycling and organic matter processing. In the present study, leather industry effluent discharged soil (test) and undischarged soil(control) were collected from the surrounding areas of industry. The physico-chemical, biological properties and soil protease activity were examined. The study ...
Abstract Nowadays, diverse leather usage conditions and increasing demands from consumers challenge the industry. Traditional manufacturing is facing long-term challenges, including low-value threshold, confined application fields, environmental issues. Leather inherits all biomimetic properties of natural skin such as flexibility, sanitation, cold resistance, biocompatibility, biodegradability...
one of the most important factors in study of project’s , is the study of environmental opportunities factors the permanent study of environmental opportunity factors . the study of permanent environmental changing and knowing golden threats’ cooperate with possible threats and at the result in structure forming and future skeleton of organization has a vital effects . the petrochemical industr...
The development of the leather industry in the Aojiang watershed of Zhejiang province increased the release of waste water. In the waste water, ammonium nitrogen (NH(+) (4)-N) and germanium (Ge) are the main pollutants. In recent years, literature has documented that the intake of high concentrations of NH(+) (4)-N and Ge harms human health and biological species. This paper focuses on assessin...
This contribution deals with the waste from the processes in which raw hide is transformed into leather, as well as with the waste generated during further leather processing and the final waste of leather industry, the worn-out shoes. All this waste, if deposited in the open-air dumps, represents a potential threat to human health, because it contains trivalent chromium (Cr III), which can oxi...
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