摘要
通过研究两种染料活性艳红X— 3B和阳离子艳红 5GN的光催化和生化降解特性 ,发现阳离子艳红可生化降解而难光催化降解 ,而活性艳红较易光催化降解 ,生化降解性能差。将两种染料配成模拟染料废水 ,用光催化预处理去除某些易光催化但难生化降解的成分 ,或者破坏难生化降解成分 ,使之可生化性提高 ,然后采用生化工艺处理。试验结果表明 ,采用光催化与生化组合工艺处理印染模拟废水 ,脱色率达到 94 % ,而COD去除率为 94 0 9% ,在COD去除率和脱色率上远比单独用光催化或生化处理优越。
The photo catalytic (PC) and biochemical (B) degradations of two brilliant red dyestuffs namely active X-3B and cationic 5GN were researched experimentally and it has been founded that X-3B can be easily decolored by PC but not by B, and the 5GN acts contrary. So the synthetic wastewater prepared by both dyestuffs will be treated by composite processes in sequence of PC and B. The biochemical treatability of the synthetic wastewater can be improved by PC process along with the removal of biologically non degradable pollutants and then the enhanced B degradation will exert. The overall results of this composite process are much better than that of single PC or B process. Decolorizing and COD removal up to 94% and 94.09% respectively have been obtained.
出处
《给水排水》
CSCD
北大核心
2003年第10期52-54,共3页
Water & Wastewater Engineering
