原水高温高藻期强化集成工艺优化运行对比研究

Comparative study on optimization of enhanced integration process during the high temperature and high algea period of raw water in Tianjin

以天津市高温高藻期饮用水原水为研究对象,通过中试对比了脉冲澄清池系列的强化集成工艺与常规工艺,以及斜管沉淀池系列与脉冲澄清池系列强化集成工艺的处理效果。结果表明,脉冲常规工艺对浊度的去除效果较为明显,但并不能有效去除原水中的COD Mn;当进行预加氯、投加聚丙烯酰胺助凝和粉末活性炭吸附后,脉冲澄清池强化集成工艺对原水COD Mn的去除效果有了显著提高;在合理确定药剂投加量后,传统的斜管沉淀池工艺对原水的浊度和COD Mn也有较为理想的去除效果,但脉冲强化工艺对COD Mn的去除率略好于斜管强化工艺。

Taking the drinking water in the high temperature and high algae period in Tianjin as the research object,the treatment effect of enhanced integrated process of pulse clarification tank series and conventional process,as well as inclined tube sedimentation tank and pulse clarification tank were compared through pilot test.The results showed that the conventional pulse process has obvious removal effect on turbidity,but it could not effectively remove COD Mn in raw water.After pre-adding chlorine,adding polyacrylamide(PAM)coagulant aid and powdered activated carbon adsorption,the enhanced integrated process of pulse clarification tank had significantly improved the removal of COD Mn in raw water.After reasonably determining the dosage of chemicals,the traditional inclined tube sedimentation tank process could effectively remove turbidity and COD Mn in raw water,and the removal rate of COD Mn by pulse enhanced process was slightly better than that by inclined tube process.