纳米零价铁处理重金属污水的试验研究  

Experimental Study on the Treatment of Heavy Metal Effluent with Nanometer Zero-Valent Iron

作　　者：张宏伟 杨洪才 岳智 ZHANG Hongwei;YANG Hongcai;YUE Zhi(China Nerin Engineering Co.,Ltd.,Nanchang,Jiangxi 330038,China)

机构地区：[1]中国瑞林工程技术股份有限公司

出　　处：《有色冶金设计与研究》2019年第6期90-93,共4页Nonferrous Metals Engineering & Research

摘　　要：通过小试及中试试验验证了采用纳米零价铁工艺处理某新建污水处理厂重金属污水的可行性。试验结果得出:控制pH值8~9、曝气量10∶1、反应时间不低于0.5 h、投加药剂1~2 g/L的条件下,试验水样通过纳米零价铁工艺处理后出水重金属均可100%达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准限值。The feasibility of processing heavy metal effluent from a new wastewater treatment plant by nanometer zero-valent iron process is verified by laboratory-scale and pilot-scale tests.The tests results show as follows:when the pH value is 8~9,aeration rate is 10∶1,reaction time is not less than 0.5 h and reagent dosing is 1~2 g/L,all the heavy metals in the effluent samples treated by the nanometer zero-valent iron process can reach the 100%limit value of class-1 standard in the discharge standard of pollutants for municipal wastewater treatment plant(GB18918-2002).

关 键 词：纳米零价铁 重金属 药剂消耗 气水比 

分 类 号：X703[环境科学与工程—环境工程]