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| 晶硅切割废砂浆回收企业废水处理工程实例 | |
| 引用本文： | 陈天明,张雁秋,霍明健.晶硅切割废砂浆回收企业废水处理工程实例[J].环境工程,2013,31(3):15-17. |
| 作者姓名： | 陈天明 张雁秋 霍明健 |
| 作者单位： | 1. 中国矿业大学环境与测绘学院,江苏徐州221116;盐城工学院环境科学与工程学院,江苏盐城224051 2. 中国矿业大学环境与测绘学院,江苏徐州,221116 3. 中煤科工集团南京设计研究院,南京,210031 |
| 摘 要： | 晶硅切割砂浆中含有聚乙二醇(PEG)和碳化硅,可回收资源。回收过程中产生的废水中仍然含有PEG和碳化硅,以致废水中悬浮物浓度较高、可生化性差。工程设计采用"预沉淀+混凝沉淀+气浮+催化氧化+A/O生化"处理工艺,经过5个月的调试运行,出水COD、SS可达GB 8978—1996《污水综合排放标准》三级标准。 |
| 关 键 词： | 晶硅切割砂浆 聚乙二醇 污水处理工艺 |
DESIGN AND DISPOSAL OF WASTE WATER FROM RECOVERING PLANT OF WASTE MORTAR BY CUTTING CRYSTAL SILICON |
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| Chen Tianming,Zhang Yanqiu,Huo Mingjian.DESIGN AND DISPOSAL OF WASTE WATER FROM RECOVERING PLANT OF WASTE MORTAR BY CUTTING CRYSTAL SILICON[J].Environmental Engineering,2013,31(3):15-17. | |
| Authors: | Chen Tianming Zhang Yanqiu Huo Mingjian |
| Institution: | 1.School of Environment Science and Spatial Informatics of CUMT,Xuzhou 221116,China; 2.College of Environmental Science and Engineering,Yancheng Institute of Technology,Yancheng 224051,China; 3.Nanjing Design & Research Institute,China Coal Technology & Engineering Group,Nanjing 210031,China) |
| Abstract: | It is necessary and significant for saving resources by recovering polyethylene glycol from waste mortar by cutting crystal silicon.The wastewater of recovery process contains amount of PEG and silicon carbide,which leads to high concentration of SS and low biodegradability.The process of pre-sedimentation-coagulation-aerated flotation-catalytic oxidation-biotreatment was adopted to treat the wastewater,and the design,and performance of this facility were presented.After the commissioning operation of more than five months,the concentration of COD,SS in the effluent could meet the requirements of the third-order in "Integrated Wastewater Discharge Standard"(GB 8978—1996). |
| Keywords: | waste mortar by cutting crystal silicon polyethylene glycol sewage treatment process |
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