摘要
针对阳极氧化废水难处理的特点,首先对含镍废水及酸碱含油废水分别预处理,再对预处理的混合污水进行混凝沉淀及超滤后,将其中70%的综合污水采用两级RO系统处理,30%的综合污水采用混凝沉淀过滤等工艺处理,出水完全达到《污水综合排放标准》(GB 8978—1996)的二级排放标准,其中重金属镍达到《电镀污染物排放标准》(GB 21900—2008)的表2标准,很好地实现了废水的处理及中水的回用。
Since the anodizing wastewater is difficult to be treated, the nickel-containing wastewater and the waste- water containing acid/alkali/oil should firstly be pre-treated separately. Then, after the pre-treated and mixed waste- water has gone through coagulation, sedimentation and ultra-filtration processes, 70% of the integrated wastewater should be treated by the two-step RO system, and 30% of the integrated wastewater be treated by processes, such as coagulation,sedimentation,filtration,etc. The results show that the effluent can completely meet the second level requirements, specified in the Integrated Wastewater Discharge Standard （GB 8978-1996）, and the heavy metal Ni can reach the requirements specified in Table 2 of the Emission Standard of Pollutants from Electroplating （GB 21900-2008）. The engineering successfully realizes the treatment of anodizing wastewater and the reuse of reclai- med water.
出处
《工业水处理》
CAS
CSCD
北大核心
2015年第11期92-95,102,共5页
Industrial Water Treatment
基金
江苏省科技计划项目(BK20141179)
苏州市科技计划项目(SS201334)
江苏省"青蓝工程"资助项目(201202)
江苏省环境科学与工程重点实验室开放课题(Zd131207)
苏州科技学院博士学位科研启动项目(201461)
关键词
阳极氧化废水
重金属
含镍废水
中水回用
anodizing wastewater
heavy metal
nickel-containing wastewater
water reuse
