摘要
根据粤西某硫酸厂硫酸渣的物理、化学性质特征,研制了筛分分级—重力分选—重组分浮选脱硫回收高质铁—轻组分浓缩脱水—化学聚合制备废水处理剂的联合工艺.经处理从硫酸渣中获得18.61%的水泥掺料、49.76%品位为63%的铁精矿以及水处理剂等产品,铁的资源化率达到98.23%,几乎无废物产生,使硫酸渣生产区域的环境质量得到良好的改善.以低品位含铁硫酸渣制备的复合混凝剂,处理CODCr8000mg/L的高浓度石化废水时,CODCr的去除率为93%,达到以废治废的效果.
Based on the physical and chemical characteristics of the sulfuric acid residue from a sulfuric acid manufacture in the west Guangdong Province,a flow sheet was developed with sieve classification,gravity concentration and pyrite flotation as well as coagulant making by chemical aggregation from light fraction of gravity separation.A result of 18.61% admixture for cement slurry,49.76% iron ore concentrate with a grade of 63%Fe and coagulant for waste water treatment had been obtained from the slag by applying a new process.The rate of slag recycling was up to 98.23% leaving only little waste,and thus the pollution caused in the area was controlled.The removal rate of CODCr was 93% when the developed coagulant was used in the treating petrochemical waste water.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2010年第2期72-75,共4页
Journal of South China Normal University(Natural Science Edition)
关键词
硫酸渣
资源化
水处理剂
sulfuric acid residue
reclamation
coagulant
