Analysis of Energy Saving and Consumption Reduction Approaches for Municipal Wastewater Treatment Plant

Abstract

Abstract: Municipal sewage treatment is an industry with high energy consumption. Taking the Chengnan Sewage Treatment Plant (Phase II) in Changsha Economic and Technological Development Zone as an example,the pretreatment,Carrousel oxidation ditch,sludge disposal and management of the sewage treatment plant are analyzed. The average power consumption is 0.199 kW•h/m3,of which the pretreatment,Carrousel oxidation ditch,denitrification system,and ultrafiltration system account for 16.53%,44.28%,18.26%,and 10.93% of the total power consumption,respectively. Combined with the comparative analysis of energy consumption of advanced sewage treatment plants at home and abroad,it is found that municipal sewage treatment plants have great potential for energy saving and consumption reduction. The main approaches include refined comprehensive planning and design,development of new energy-saving and consumption reduction sewage treatment technologies and equipment,and research on precise control technology in water treatment processes,establishment of a comprehensive evaluation system and method for energy saving and consumption reduction efficiency and so on. The approaches can meet the needs of sustainable development and greatly promote the development of the sewage treatment industry.

Key words: wastewater treatment, energy consumption distribution, energy saving and consumption reduction

CLC Number:

X703

LUO Jun, ZHANG Minjun, HUANG Hongqi, ZENG Tao, LIU Jieyuan, LI Zuogui. Analysis of Energy Saving and Consumption Reduction Approaches for Municipal Wastewater Treatment Plant[J]. TIANJIN SCIENCE & TECHNOLOGY, 2023, 50(4): 115-118.

References

[1] 陈功,周玲玲,戴晓虎,等. 城市污水处理厂节能降耗途径[J].水处理技术,2012,38(4):12-15.
[2] 孙晓杰,罗洁瑜,王敦球,等. 我国城市污水处理厂节能降耗研究进展[J].桂林理工大学学报,2012,32(4):519-523.
[3] 黄伏根,朱炳林. 微孔曝气、卡鲁塞尔-2000型氧化沟工艺处理城市污水[J].冶金矿山设计与建设,2000(6):32-36.
[4] 赵传义,陈天兵,张俊明. 城市BOT污水处理厂节能降耗研究[J].节能技术,2009,27(6):564-566.
[5] 李志平. 昆明某Carrousel氧化沟工艺解析及升级改造[D].西安:西安建筑科技大学,2014.
[6] 程光. 城市环境污水处理过程节能优化控制方法研究[J].环境与发展,2020,32(10):34-35.
[7] 郭思元,王浩昌,赵冬泉,等. 基于稳流节能的污水处理厂进水泵站智能控制方法[J].中国给水排水,2010,26(20):135-138.
[8] 郑亚琴,李骏飞. 曝气系统中节能方式的探讨[J].中国建设信息(水工业市场),2007(4):45-46.
[9] 魏全源,李辰. 改良A₂O污水处理厂工艺运行及能耗分析[J].供水技术,2015,9(2):54-57.
[10] 谢继荣,王佳伟,蒋勇,等. 基于溶解氧与需气量串级控制的曝气系统优化控制[J].中国给水排水,2011,27(21):36-39.
[11] 杨新宇,邱勇,施汉昌,等. 曝气过程控制系统在污水处理厂节能中的应用与评价[J].给水排水,2012,48(7):130-134.
[12] 解宏端,杨雨桐,王玲,等. 污水处理过程的控制与优化技术[J].科技资讯,2015,13(19):141,143.
[13] 史凌霄. 简析污水处理厂节能降耗途径[J].大众标准化,2020 (18):204-205.
[14] 马金峰,王佳伟,张胜海,等. 污水处理厂溶解氧自动控制系统的运行优化[J].中国给水排水,2010,26(11):17-20.
[15] 姜鸣,张静慧,宫飞蓬,等. 生物反硝化除磷技术研究进展[J].净水技术,2011,30(6):11-15.
[16] Hu JY,Ong SL,Ng WJ,et al.A new method for characterizing denitrifying phosphorus removal bacteria by using three different types of electron acceptors[J]. Water Research,2003,37(14):3463-3471.
[17] 杨根权. 城镇污水处理厂氧化沟工艺节能技术措施探讨[J].能源环境保护,2018,32(6):44-49.