摘要
采用分光光度法对制革废物中的铬进行了测定 ,结果严重超标。制革废液和废渣经化学处理和综合利用 ,得到了氧化铬和红矾钠等回收产品 ,并基本达到国家允许排放标准。为制革厂的污染防治和废物利用 ,提供了一种简便有效的方法。
Determination by spectrophotometry shows that the contents of chromium in tanning wastes exceed the limitation greatly. Chromic oxide, chrome and other recovery products were obtained from the waste liquid and residue by the chemical treatment and comprehensive utilizations, so the treated waste basically reaches the state's waste discharge standard. A simple and effecient method is proposed for tanneries to prevent pollution and make use of waste.
出处
《皮革化工》
2000年第3期31-33,共3页
Leather Chemicals
