摘要
以厦门市杏林污水处理厂为例,研究NCE在市政污水深度处理及污泥处置中的可行性及适用性,为市政污水处理及污泥处置领域的技术优化开发提供技术支持。结果表明,1)采用"NCE+砂滤"技术,在20 V、200 A的最佳电解运行参数下,出水可达到GB/T 18920-2002城市绿化水质要求,运行能耗约为0.56 k Wh/t,其中电解机能耗约为0.1 k Wh/t。采用"NCE+MBR+RO"技术,出水可作为工业企业的中水进行循环利用;2)采用NCE作为污泥处置的前处理技术,在13.2 V、900 A的最佳运行条件下,可将万吨污水产泥量从传统方法的9.6 t降至5.2 t左右,通过NCE电解后回流的浓缩池上清液,可生化性能得到更好地改善,其BOD/COD比可由0.32提升至0.43。与传统污泥脱水技术相比,具有环境和经济效益。
Taking a wastewater treatment plant ofxiamen city as an example, the feasibility and applicability ofnano-catalytic electrolysis technology （NCE） in municipal wastewater advanced treatment and sludge disposal were＇researched, Which provided technical support for technology optimization and development. The results showed that： I） under the optimal electrolysis operating parameters of 20 V and 200 A conditions, the effluent could meet the requirement of Reuse of Urban Recycling Water ＆ Water Quality Standard for Urban Miscellaneous Water Consumption （GB/T18920-2002） by NCE ＋sand-filtrationtechnology, the running energy consumption was about 0.56 kWh/t, the energy consumption ofthe electrolytic machine was about 0.1 kWh/t. Using ‘NCE ＋ MBR ＋RO＇ technology, the water could be used for industrial recycling. 2） Under the optimal operatingconditions of 13.2 V and 900 A, the sludge production capacity of 10 thousand tons of sewage could be reduced fromg.6 t to 5.2 t by using NCE as the pretreatment technology of sludge disposal, the biodegradability of supernatant was better improved, and the B/C ratio could be raised from 0.32 to 0.43. Compared with the traditional sludge dewatering technology, it had environmental and economic benefits.
出处
《水处理技术》
CAS
CSCD
北大核心
2017年第9期128-131,135,共5页
Technology of Water Treatment
基金
国家科技支撑计划项目(2013BAC06B00)
关键词
纳米催化电解
市政污水
深度处理
污泥减量
nano-catalytic electrolysis
municipal wastewater
advanced treatment
sludge reduction
