印染废水的植物修复及在线监测技术研究

Repairing Printing and Dyeing Wastewater with Plant and On-line Monitoring Technology Research

采用空心莲子草对印染废水进行修复,研究净化效果,并利用在线监测技术对植物修复前后的印染废水中氨氮、化学需氧量(COD)、总有机碳(TOC)指标进行测定。结果表明:空心莲子草对水质净化具有一定影响,随时间的增加,污水的浓度降低,去除率逐渐增大。植物修复印染废水及在线监测技术是可行的。

A method was proposed to use alligator weed to repair dyeing wastewater. The purification effect was investigated. An on-line monitoring technique was used to determine the content of ammonia-nitrogen, chemical oxygen demand （COD）, total organic carbon （TOC） of dyeing plant wastewater before and after the repairing treatment. The results showed that alligator weed can be used to purify wastewater to some extents. With increasing time, the concentration of wastewater decreased and the removal rate gradually increased. In conclusion, it is applicable to repair the dyeing wastewater with alligator weed and to apply on-line monitoring techniques to monitor the process.