污染水体的原位生物修复研究初探  

Preliminary Study on In-situ Bioremediation for Polluted Water

作　　者：李继洲[1] 胡磊[1] 

机构地区：[1]河海大学环境科学与工程学院,南京210098

出　　处：《四川环境》2005年第1期1-3,26,共4页Sichuan Environment

基　　金：河海大学创新基金(编号:2003412343)

摘　　要：采用环境友好型生物激活剂-BZ对某受污染水体进行静态修复试验,结果表明,BZ剂的加入可以促进水体中污染物CODCr、NH3 N和TP的降解。在不曝气的条件下,当BZ剂投加量为4 0mg/L·d时,对水质的净化效果最好,投加10天后,水样中CODCr、NH3 N和TP的降解率分别为23 8%、78 2%和23 9%。在曝气条件下,以上指标的变化规律和降解率与没有曝气时基本相近。在有/无曝气条件下,BZ剂加入均会使水样的pH值略为增高,且其对NH3 N降解的促进作用最为显著。Experiments on in-situ bioremediation for polluted water from river by environmental-friendly biostimulant called BZ were (carried) out. With addition of BZ, the degradation processes of COD_(Cr),NH_3-N and TP were accelerated and their removal efficiencies were best when the BZ addition dosage was 4.0 mg/L per day. After 10 days of addition, degradation rates for COD_(Cr),NH_3-N and TP were 23.8%,78.2% and 23.9% respectively without aeration. With or without aeration, change rules of pH,COD_(Cr),NH_3-N and TP were similar and pH value of polluted water increased appreciably with addition of BZ, and also its acceleration on degradation for NH_3-N was most obvious. 

关 键 词：原位生物修复 生物激活剂 降解率 污染水体 

分 类 号：X703[环境科学与工程—环境工程]