摘要
文章简要介绍了某老旧水厂原制水工艺存在的主要问题,有针对性地提出了工艺提升改造方案,详细分析了在改造前后该水厂运行参数、水质、能耗等重要指标的变化。结果表明,水厂通过更换微阻力管道混合器、增加新型反应池格栅、沉淀池集水槽及加药控制反馈在线仪表等工艺改造措施后,进水管压力由0.07 MPa降低为0.04 MPa,电耗下降约为12×10^(-3)kW·h/m^(3),氯耗较改造前下降1.12×10^(-3)kg/m^(3),实现了节能降耗。沉淀池出水平均浑浊度由3.11 NTU降为1.99 NTU,出厂水平均浑浊度由0.14 NTU降为0.09 NTU。水厂通过本次提升改造,有效改善了高峰供水期间混凝效果下降、水质波动、能耗上升等问题,并产生较好的经济和社会效益。
This paper briefly introduces the main problems in the original process of an old water treatment plant(WTP),and a scheme of technological upgrading and reconstruction is put forward.The changes of operation parameters,water quality,energy consumption and other important indices after transformation are analyzed in detail.The results show that,after the transformation such as replaced the micro-resistance pipeline mixer,added the new reaction cell grid,sedimentation tank collecting tank and the dosing control feedback on-line instrument,the pipe pressure is reduced from 0.07 MPa to 0.04 MPa,the pump energy consumption is saved about 12×10^(-3)kW·h/m^(3),chlorine consumption is saved about 1.12×10^(-3)kg/m^(3),which can realize energy saving and efficiency.Meanwhile,average turbidity of outflow from sedimentation tank decreases from 3.11 NTU to 1.99 NTU,the average turbidity of outflow of WTP is reduced from 0.14 NTU to 0.09 NTU.Through the upgrading and reconstruction,the WTP has effectively improved the problems such as decline of coagulation effect,fluctuation of water quality and increase of energy consumption during peak water supply,and produced better economic and social benefits.
作者
童佳佳
李纲
侯宝芹
戴赵钦
TONG Jiajia;LI Gang;HOU Baoqin;DAI Zhaoqin(Hangzhou Xiaoshan Water Supply Co.,Ltd.,Hangzhou311203,China)
出处
《净水技术》
CAS
2022年第6期181-186,共6页
Water Purification Technology
关键词
老旧水厂
升级改造
节能增效
水质提升
管道混合器
old water treatment plant(WTP)
upgrading and reconstruction
energy conservation and efficiency
water quality upgrading
pipeline mixer
