摘要
某冶炼厂贵金属车间湿法冶炼过程中产生的冶炼废水,含有砷、重金属、有机物及盐类等污染物,属于高砷、高重金属、高含盐量、高COD废水。针对此类废水的特点,在实验室小试、现场中试的基础上,确定采用纳米零价铁/化学氧化絮凝技术/过滤处理工艺。实际工程运行结果表明,对于铜为19.55~245.36 mg/L、砷为42.12~280.39 mg/L的原水,处理后出水水质达到或优于《铜、镍、钴工业污染物排放标准》(GB 25467—2010)中表2标准,污泥中的有价金属得到回收利用。
The smelting wastewater produced in the process of wet smelting of precious metal workshop in a smelter contains arsenic, heavy metals, organic compounds, salts and so on, which is a kind of wastewater with high arsenic, high heavy metals, high salinity and high COD. According to the characteristics of the wastewater, based on lab and field pilot studies, the combined process of nanoscale zerovalent iron, chemical oxidation flocculation technology and filtration was determined to use. The actual project results showed that the raw wastewater with copper of 19.55 to 245.36 mg/L and arsenic of 42.12 to 280.39 mg/L could be treated to meet or superior to the requirements in the table 2 of the Emission Standard of Pollutants for Copper, Nickel, Cobalt Industry （GB 25467 -2010）. The valuable metals in sludge were recycled.
作者
席智新
XI Zhi-xin(Shanghai Fuda Tongnuo Environmental Technology Co. Ltd., Shanghai 200082, Chin)
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第4期90-92,共3页
China Water & Wastewater
关键词
冶炼废水
纳米零价铁
高含盐量
化学氧化絮凝
资源化利用
smelting wastewater
nanoscale zero-valent iron
high salinity
chemical oxidation flocculation
resource utilization
