新标准下电镀废水处理及循环利用技术

发布时间：2018-06-09 07:01

本文选题：电镀 + 废水　；参考：《内蒙古大学》2015年硕士论文

【摘要】：本项研究针对目前我们国家90%以上的污水处理厂采用的是一代技术和二代技术很难满足新标准一级A排放要求,为解决这一难题,结合电镀园区废水特点,通过充分分析总结现有各水处理技术特点进行有机结合,包括物理、电化学、生化、膜处理、低能蒸发技术的有机融合,发挥各种技术特点,提出分类、分步、综合性性技术路线,为突出对特定废水的处理有效性,包括生物蠕动床、抗污染RO膜、MVR热泵蒸发技术等,实现对电镀废水中各种复杂有害因子的有效处理,将废水的盐类脱除,去离子水可实现全部回用,废水实现零排放,从根本上彻底解决电镀废水的环保问题。在实例中应用,将全部1550吨/天的污水分类采取采用分质预处理、混合进行二级生化处理和三级深度除盐的三段中水回用处理流程,以达到污水再生利用工程设计规范中敞开式循环冷却系统补充水水质标准后,作为循环补充水和园区浇洒道路,绿化及景观用水全部回用,对外实现零排放,建成循环经济生态示范园。
[Abstract]:In this study, more than 90% of our country's wastewater treatment plants use a generation of technology and the second generation technology is very difficult to meet the new standard A discharge requirements, in order to solve this problem, combined with the characteristics of electroplating park wastewater, By fully analyzing and summarizing the characteristics of various existing water treatment technologies for organic integration, including physical, electrochemical, biochemical, membrane treatment and low-energy evaporation technology, giving full play to various technical characteristics, putting forward the classification, step by step, In order to give prominence to the effectiveness of specific wastewater treatment, including biological peristaltic bed, anti-pollution RO membrane MVR heat pump evaporation technology, the effective treatment of various complex harmful factors in electroplating wastewater can be realized, and the salt of wastewater can be removed. The deionized water can be reused completely, and the waste water can be discharged zero, and the environmental protection problem of electroplating wastewater can be solved thoroughly. In the application of the example, all 1550 tons / day sewage is classified by the process of three stages of water reuse treatment, which is divided into two parts, mixed with secondary biochemical treatment and tertiary deep desalination. In order to reach the water quality standard of open circulating cooling system in the design code of wastewater reuse engineering, the water can be recycled and sprinkled on the road, and all the water used for greening and landscape can be reused to realize zero discharge to the outside. Build cycle economy ecological demonstration garden.
【学位授予单位】：内蒙古大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X781.1

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