云南化工2012，Vol.39Issue(5)：1-7,7.
云南晋宁磷矿浮选废水处理研究
Research on Jinning Phosphate Flotation Wastewater Treatment in Yunnan
李冬莲 1秦芳 1张亚东1
作者信息
- 1. 武汉工程大学环境与城市建设学院,湖北武汉430073
- 折叠
摘要
Abstract
In the direct-reverse flotation process of phosphate ore, inorganic ions and agent components show different characteristics in ore slurry because of the different pH and the diversities of phosphate ore, therefore it is not scientific to recycle all the wast water, including flotation taihng water, reverse flotation concentrate water and reverse floating railings water which has completely characters together. Flocculation and sedimentation method is one of the effective ways to deal with Jinning phosphate ore flotation wastewater. Lime and sodium carbonate or sodium phosphate can be used to handle Jinning phosphate flotation wastewater. When the amount of lime is 4.0 kg/m3 and sodium carbonate is 0.6 kg/m3 , the final ore concentrate of closed circuit flow test is w (P2O5 ) = 29.66% and the recovery rate is 77.38 % ;When the amount of lime is 2.0 kg/m3 and sodium phosphate 0.2 kg/m3 , the final ore concentrate of closed circuit flow test is w( P22O5 ) = 30.22% and the recovery rate is 76.74%. The treated wastwater has little influence on the flotation process, this treatment method is simple, easy to operate and is easy to implement in industry.关键词
浮选/废水/絮凝沉淀法/磷矿Key words
flotation/wastewater/flocculation and sedimentation method/phosphate ore分类
化学化工引用本文复制引用
李冬莲,秦芳,张亚东..云南晋宁磷矿浮选废水处理研究[J].云南化工,2012,39(5):1-7,7.
