摘要
湛江市麻章自来水厂设计规模为7.5万m^(3)/d,原水为合流水库的低浊含藻水。该厂采用“网格絮凝池+平流沉淀池+气水反冲洗V型滤池+液氯消毒”处理工艺,预留了生物预处理和深度处理用地,采用预加氯以及多点加氯的措施以应对轻度微污染及突发性的水污染,出厂水水质指标均达到《生活饮用水卫生标准》(GB 5749—2006)要求。该厂对主体工艺采用节地设计,用地指标为0.465 m^(2)·d/m^(3),同时对V型滤池产生的反冲洗废水进行回用,既减少了厂区自用水量又节约了运营成本。
The design capacity of Mazhang water treatment plant(WTP) in Zhanjiang City is 75 000 m^(3)/d, and low turbidity and algae-containing water from the Heliu Reservoir is raw water of this WTP. “Grid flocculation tank+horizontal flow sedimentation tank+air water backwash V filter+liquid chlorine disinfection” treatment process is adopted in Mazhang WTP, land is reserved for biological pretreatment and advanced treatment process, and pre-treatment chlorine and multi-point chlorination measures are used to deal with light micro-pollution and sudden water pollution. Those methods prompt the finished water quality to meet the requirement of Standards for Drinking Water Quality(GB 5749—2006). The WTP adopts land saving design for the main process, and the land use index is 0. 465 m^(2)·d/m^(3). At the same time, the reuse of backwash wastewater from V filter not only reduces the water consumption of Mazhang WTP, but also saves the operation cost.
作者
胡新立
司徒菲
张明
余军
简思凤
HU Xinli;SITU Fei;ZHANG Ming;YU Jun;JIAN Sifeng(Central and Southern China Municipal Engineering Design and Research Institute Co.,Ltd.,Wuhan430010,China)
出处
《净水技术》
CAS
2022年第4期134-140,共7页
Water Purification Technology
关键词
低浊含藻水
节地设计
叠池设计
V型滤池
多点加氯
low turbidity and algae-containing water
land saving design
stack tank design
V filter
multi-point chlorination
