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制革厂的清洁生产技术
引用本文:刘必琥,谢时伟.制革厂的清洁生产技术[J].环境工程,1996,14(3):3-6.
作者姓名:刘必琥  谢时伟
作者单位:[1]南京市环境保护科学研究所 [2]南京市制革厂
摘    要:联合国工业发展组织选择南京制革厂推行低污染制革生产技术,采用在废液中投加氧化镁的方法将金属铬沉淀出来,得到的铬泥体积比通常用氢氧化钠方法要小得多,该方法可使废水中90%以上的铬回收利用,年产90万张猪革的工厂可获利22~27万元/年

关 键 词:铬回收  制革厂  氧化镁

THE CLEAN THCHNOLOGY IN THE TANNEY UTILIZATION OF CHROME IN TANNING WASTEWATER
Liu Bihu.THE CLEAN THCHNOLOGY IN THE TANNEY UTILIZATION OF CHROME IN TANNING WASTEWATER[J].Environmental Engineering,1996,14(3):3-6.
Authors:Liu Bihu
Abstract:The Nanjing Tannery has been nominated by the Industry Development Organization of UN to popularize low polluted tanning technology which is based on the removal of chrome by means of dosing magnesium oxide into the wastewater. The volume of the settled chrome sludge is smaller compared with the treatment by means of dosing NaoH and 90% chrome can be recovered from the wastewater. The tannery with the capacity of tanning 900,000 pig leathers annually can be benefited in terms of 220,000~270,000 RMB consequently.
Keywords:chrome recovery  tannery  magnesium oxide  
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