改良型Carrousel-2000氧化沟工艺曝气系统改造实践  

Improvement Practice of Aeration System for Modified Carrousel-2000 Oxidation Ditch Process

作　　者：钱志东 QIAN Zhidong(Fujian Strait Environmental Protection Group Co.,Ltd.,Fuzhou 350014,China)

机构地区：[1]福建海峡环保集团股份有限公司,福州350014

出　　处：《中国资源综合利用》2023年第9期182-184,共3页China Resources Comprehensive Utilization

摘　　要：福建省某开发区污水处理厂采用改良型Carrousel-2000氧化沟工艺,由于氧化沟结构设计不合理,倒伞型表曝机设备老化,出水氨氮不能达标。后将原有的表面曝气改为底部鼓风曝气,即板式微孔曝气器和推流器结合的曝气形式。改造后的污水处理厂出水水质稳定优于《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,有效提高系统的硝化及生化处理能力,平均每年减少电耗约58.4×104 kW·h,大大降低污水处理厂运行成本。A sewage treatment plant in a certain development zone in Fujian Province adopts the modified Carrousel-2000oxidation ditch process,due to the unreasonable design of the oxidation ditch structure and the aging of the inverted umbrella surface aerator equipment,the effluent ammonia nitrogen cannot meet the standard.Afterwards,the original surface aeration is changed to bottom blowing aeration,which is a combination of plate microporous aerator and push flow aerator.The effluent quality of the renovated sewage treatment plant is stable and better than the first level A standard of the "Pollutant Discharge Standard for Urban Sewage Treatment Plants"(GB 18918—2002),effectively improving the nitrification and biochemical treatment capacity of the system,and the average annual reduction in electricity consumption is about 58.4×10~4 kW·h,greatly reducing the operating cost of the sewage treatment plant.

关 键 词：氧化沟 倒伞型表曝机 板式微孔曝气器 推流器 

分 类 号：X703[环境科学与工程—环境工程]