高效多功能纳米混凝剂的分子设计,作用机理与产业化

Molecular Design,Mechanism and Industrialization of Highly Efficient and Multi-functional Nano Coagulants

项目组针对水处理领域,复杂源水水质及复合污染情况下,传统水处理混凝工艺对微细污染物去除效率低、处理处置综合成本高等问题,在揭示传统混凝药剂形态转化过程及其理化特征演变基础上,通过分子结构设计优化及功能性化学组分的引入,开发了强化电中和效应的高电荷纳米药剂,优化絮体形态的无机-有机复配药剂,提高有机物去除的吸附-混凝耦合药剂等一系列多功能强化混凝新型药剂,构建了针对不同水体的多级絮体的形成与调控、反应过程的优化与监控体系,实现对不同复合污染特征水体的优化混凝技术的个性化设计,形成优化混凝-深度过滤耦合技术体系,有效提升了微细污染物的去除效果。项目所研发的高效多功能纳米混凝药剂与技术成功应用于145个水处理项目,服务人口6685.5万人,效益显著。

Under complex source water quality and combined pollution conditions in the field of water treatment,there are the problems that the removal efficiency of micro-pollutants is low while the cost of treatment and disposal is high by the traditional water treatment coagulation process.In order to solve these issues,the project team studied the form transformation process as well as their physical and chemical characteristics evolution of traditional coagulants.Through the optimization design of molecular structure and the introduction of functional chemical components,a series of new multi-functional coagulants has been developed,such as high-charge nano coagulant to strengthen the electric neutralization effect,inorganic-organic compound coagulant to optimize the morphology of flocs,adsorption-coagulation coupling coagulant to improve the removal of organic matter,et al.Moreover,the system for optimizing and monitoring the formation and regulation of multi-level flocs in different water bodies,as well as the reaction process was constructed,so as to achieve personalized design of optimized coagulation technology for water bodies with different composite pollution characteristics.The optimized coagulation-deep filtration coupling technology system was formed,which effectively improved the removal effect of micro-pollutants.The highly efficient and multi-functional nano coagulants and technologies developed by the project have been successfully applied in 145 water treatment projects,serving a population of 66.855 million,which have achieved significant economic and environmental benefits.