一、概况 我厂一车间处理阳极泥过程中产生的大量烟气经文丘里水收尘后,每天排放200～250米~3,pH=2.5～4.5的工业污水(成分示如表1)。其含砷量超过排放标准5300倍。每年排放废水总量约10万吨。其中有砷78吨,氟80吨,锑50吨,造成对环境的严重污染。对此污水我们曾做过闭路循环试验,企 I. Overview I plant a workshop anode mud generated during the process of a large number of flue gas through Venturi water dust, the daily discharge of 200 ~ 250 m ~ 3, pH = 2.5 ~ 4.5 industrial wastewater (composition shown in Table 1). Its arsenic content exceeds the emission standard 5300 times. The total amount of wastewater discharged annually is about 100,000 tons. Among them, there are 78 tons of arsenic, 80 tons of fluorine and 50 tons of antimony, causing serious pollution to the environment. We have done this cycle of closed-loop sewage test, enterprises