[1]任书魁.南通经济技术开发区中水回用工程工艺分析及改进[J].中国给水排水,2021,37(18):122-126.
REN Shu-kui.Analysis and Improvement of Reclaimed Water Reuse Process in Nantong Economic and Technological Development Zone[J].China Water & Wastewater,2021,37(18):122-126.
南通经济技术开发区中水回用工程工艺分析及改进
中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第18期 页码: 122-126 栏目: 出版日期: 2021-09-17
- Title:
- Analysis and Improvement of Reclaimed Water Reuse Process in Nantong Economic and Technological Development Zone
- 作者:
- 任书魁
- (中国轻工业长沙工程有限公司，湖南长沙410114)
- Author(s):
- REN Shu-kui
- (China Light Industry Changsha Engineering Co. Ltd., Changsha 410114, China)
- Keywords:
- wastewater reuse; ozone activated carbon biofilter; integrated membrane system; evaporative crystallization
- 摘要:
- 南通经济技术开发区中水回用工程以江苏王子制浆有限公司南通工厂处理后的尾水作为原水，采用气浮、臭氧-活性炭、锰砂滤池、电吸附（ES）、超滤（UF）、反渗透（RO）、电渗析（ED）、蒸发结晶等组合工艺流程，实现了纸浆造纸废水的零排放，出水各项指标均远优于《城市污水再生利用 工业用水水质》（GB/T 19923—2005）的相关要求。针对运行过程中发现的澄清池污泥回流缝堵塞等问题，采用增设环形排泥管等技术措施加以解决。该工程总投资为5.48亿元，与排海管道工程相比，节省1/2建设资金，运行费用降低30%。经估算，该工程建成运行后，可节约用水约1 500×104 m3/a，经济效益、社会效益显著。
- Abstract:
- The reclaimed water reuse project in Nantong Economic and Technological Development Zone takes the tail water treated by Nantong Plant of Jiangsu Prince Pulping Co., Ltd. as raw water. It adopts the combined process of air flotation, ozone-activated carbon, manganese sand filter, electrosorption (ES), ultrafiltration (UF), reverse osmosis (RO), eletrodialysis (ED), and evaporative crystallization, to achieve zero discharge of pulp and paper wastewater. The indexes of effluent quality are far superior to the relevant requirements of The Reuse of Urban Recycling Water—Water Quality Standard for Industrial Uses (GB/T 19923-2005). In order to solve the problems found in operation such as blockage of sludge return gap in clarifier, the technical measures such as adding annular sludge discharge pipe are adopted. The total investment of the project is 548 million yuan. Compared with the pipeline project discharged to the sea, the construction fund is saved by half and the operation cost is reduced by 30%. After completion and operation, the project can save about 15 million m3/a of water, with remarkable economic and social benefits.
更新日期/Last Update: 2021-09-17
