环境工程学报2017，Vol.11Issue(6)：3767-3772,6.DOI:10.12030/j.cjee.201603029
皮革厂含铬污泥铬回收及资源化利用
Chrome recovery and recycling of tannery sludge containing chromium
摘要
Abstract
In this study,chromium sludge produced by a tannery in Binzhou was taken as the research object.The acid leaching-alkalifying-oxidizing method was adopted to extract chromium from the sludge.Through the experiment,the best reaction conditions were determined,and the chromium recovery rate reached 92.6％.The recovered chromic salt of sodium dichromate (Na2Cr2O7) can be reused in the preparation of chrome tanning agent in the tannery.In addition,the content of chromium remaining in the sludge was 10.88 mg · g-1,and the leaching toxicity was lower than the hazardous waste identification standard.关键词
含铬污泥/铬回收/酸浸/资源化Key words
chromium sludge/chromium recovery/acid leaching/recycling分类
资源环境引用本文复制引用
耿淑英,付伟章,郑书联,顾修强,马利民..皮革厂含铬污泥铬回收及资源化利用[J].环境工程学报,2017,11(6):3767-3772,6.基金项目
山东省高等学校科技计划项目(J14LD06) （J14LD06）
