摘要
研究了用废铁屑处理难生物降解的染料废水 ,考察了进水 p H值、曝气时间、固液比、铁碳比、铁屑粒度对废水处理效果的影响 ,并确定了适宜实验条件。实验证明 ,该法可以有效去除染料废水的色度和 CODCr,在实验考察范围内 ,脱色率和 CODCr去除率分别可达 90 %、6 1.7%。同时废水可生化性也得到了改善 ,BOD5/CODC r从 19.6 %上升到 2 9.5% ,提高了 50 % ,有利于后续生化处理。该法以废治废 。
Dye wastewater was treated by iron filings, and the effects of influent wastewater pH, aeration time, ratio of iron filings to wastewater, ratio of iron to carbon and iron granularity on COD\-\{Cr\}, chroma removal were discussed. Results showed that this process can reduce chroma and COD\-\{Cr\} efficiently, the removal rates of chroma and COD\-\{Cr\} can reach to 90% and 61.7% respectively. After treaterpent, the biodegradability of wastewater was improved, with BOD\-5/COD\-\{Cr\} increasing from 19.6% to 29.5%. This process is promising and applicable.\;
出处
《环境污染与防治》
CAS
CSCD
北大核心
2002年第4期219-221,共3页
Environmental Pollution & Control
