环境工程学报2017，Vol.11Issue(6)：3481-3486,6.DOI:10.12030/j.cjee.201603032
新型复合药剂原位修复河道底泥污染
New composite agent in-situ remediation for river sediment pollution
摘要
Abstract
A new composite agent was used for in-situ sediment remediation.The effects of remediation,the concentration of TP in the sediment,and the forms of phosphorus were investigated in this study.The results showed that the new composite agent removed TN,NH4+-N,and TP well,and an enhanced effect was achieved with a dose increase of the new composite agent.The highest removal rates of TN,NH4+-N,and TP were 23.52％,21.79％,and 81.5％,respectively.In the waterbody overlying the sediment,the removal rate of COD first increased and then decreased,as the dosage of the reagent increased,with the highest removal rate (dosage of 600 mg· L-1) reaching 57.6％.Adding the new composite agent can increase the concentration of TP in the sediment and can promote the conversion of unstable phosphorus to a steady state.Based on economic costs and remediation effects,the optimum dosage of the new composite agent was 600 mg · L-1.关键词
新型复合药剂/原位修复/上覆水体/底泥/磷形态Key words
new composite agent/in-situ remediation/overlying water/sediment/phosphorus forms分类
资源环境引用本文复制引用
贺振洲,崔康平,慈曾福,王郑,孟蓉..新型复合药剂原位修复河道底泥污染[J].环境工程学报,2017,11(6):3481-3486,6.基金项目
国家水体污染控制与治理科技重大专项(2011ZX07303-002,2012ZX07205-002) （2011ZX07303-002,2012ZX07205-002）
