亚铁/H_(2)O_(2)高级氧化协同矿化技术用于水厂改造

Application of Ferrous Iron/H_(2)O_(2)Advanced Oxidation Co-mineralization Technology in Waterworks Renovation

为强化常规处理工艺对嗅味物质的去除,提高供水安全的保障能力,针对深圳市原水水质特征,设计了亚铁/过氧化氢(H_(2)O_(2))高级氧化协同二氧化碳/石灰的水厂升级改造工艺,并用于深圳市H水厂的工艺改造。结果表明,改造后出厂水水质整体明显提升,2-甲基异莰醇(2-MIB)稳定达标,平均去除率提升1.2倍,UV_(254)平均去除率提升1.0倍,化学稳定性指数(LSI、CCPP、AI、LR)显著提高。该改造工艺适应当地水质特点,工期短、投资少、不增加新建(构)筑物。本次改造投资成本为153.3元/(m^(3)·d^(-1)),实际运行新增药剂费约0.133元/m^(3)。

In order to strengthen the removal of odor compounds by conventional treatment process and improve the guarantee ability of water supply safety,the waterworks upgrading process of ferrous iron/hydrogen peroxide(H_(2)O_2)advanced oxidation combined with carbon dioxide/lime was designed according to the characteristics of raw water quality in Shenzhen and applied to the process renovation of H waterworks.The results show that the overall effluent quality is obviously improved,2-MIB reaches the standard stably with average removal rate increased by 1.2 times,the average removal rate of UV254 is increased by 1.0 times,and the chemical stability indexes(LSI,CCPP,AI and LR)are significantly improved.This renovation process adapts to the local water quality characteristics,with short construction period,less investment and no new structures.The investment cost of this transformation is 153.3 yuan/(m^(3)·d^(-1)),and the additional chemical consumption in actual operation is about 0.133 yuan/m^(3).