一、引言 沈阳冶炼厂铅电解车间连续脱铜反射炉文丘里水收尘的废水中,含有大量的砷、铜、锌、铅、镉等有害元素,每日排放量为150～200米~3,对环境造成严重污染,成为沈阳市铁西明渠的主要污染源之一。该废水有害元素的平均含量如表1所示。 由表1可见,仅砷一项,每年就有12吨左右排入下水道,污染水源和农田,严重危 I. Introduction Shenhua smelter lead electrolysis plant continuous decarburization furnace Venturi dust water, containing a lot of arsenic, copper, zinc, lead and cadmium and other harmful elements, daily emissions of 150 ~ 200 m ~ 3 , Causing serious pollution to the environment and becoming one of the major pollution sources of the Tiexi Open Channel in Shenyang City. The average content of harmful elements in the wastewater is shown in Table 1. As can be seen from Table 1, only 12 tons of arsenic is discharged into sewers every year, polluting water sources and farmland, causing serious danger