Effect of the Detoxification on the Shrinkage Temperature and pH of Chromium Leather Waste, Another Promising Way for the Tannery Pollution| Science Publications

American Journal of Applied Sciences

M. Hachemi¹  A. Malek¹ 

关键词: Chromium;    waste leather;    pollution;    decontamination;    shrinkage temperature;   

DOI  :  10.3844/ajassp.2008.1329.1335

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

The leather tannery industry produces a significant amount of solid chromium waste. Environmental concerns and escalating landfill costs are becoming increasingly serious problems to the leather industry and alternative disposal methods are needed. This research describes the possibility of decrease of the shrinkage temperature and to increase the pH value of leather waste by detoxification treatment with use of tartrate potassium. Through this investigation, we have established that is more possible to reduce the shrinkage temperature and neutralizing the acidity of this waste without his degradation or digestion and with decreasing of his chromium content about 95%. The use of reaction time of 72 h generates the optimal decreasing of the shrinkage temperature of waste leather about 42

【 授权许可】

Unknown