【摘要】 对高浓度泥浆(HDS)—铁盐法处理冶炼企业污酸工业废水进行半工业试验。结果表明,在pH=10条件下,HDS出水的Pb、Zn均可达到国家排放标准,As出水控制在10mg/L以下,再经后续铁盐除砷工序,As排放也可达到国家排放标准。HDS产生底泥固含可达27%左右,显著高于石灰法的水平(2%以下)。更多还原

【Abstract】 The semi-industrial experiment for acid waste water treatment in nonferrous smelter was conducted via High Density Slurry(HDS)-ferrous salt process.The results indicate that,both Pb and Zn could meet the requirement of the national emission standards through the HDS-ferrous salt process at pH10 as concentration in HDS system effluent could be controlled to less than 10 mg/L.The solid content in HDS sludge is up to 27%,which is significantly higher than that in LDS sludge(<2%).更多还原