免烧类绿沸石基复合材料的合成及其净水性能  

Synthesis and Water Purification Performance of Unburned Composite Materials Based Green Zeolite

作　　者：游自强 陈铮 郑宇 郑丹璐 陈景烨 王趁义[1] You Ziqiang;Chen Zheng;Zheng Yu;Zheng Danlu;Chen Jingye;Wang Chenyi(College of Biology and Environment,University of Zhejiang Wanli,Ningbo,Zhejiang 315100)

机构地区：[1]浙江万里学院生物与环境学院,浙江宁波315100

出　　处：《非金属矿》2023年第6期19-23,共5页Non-Metallic Mines

基　　金：国家自然科学基金(21207036);浙江省公益技术研究计划项目(LGF21E080014);浙江省大学生科技创新活动计划暨新苗人才计划(2023R419008);浙江省一流学科“生物工程”研究生创新项目(CX2023017,CX2022013);宁波市水利科技项目重点项目(NSKA202342);宁波市乡村环保产业技术推广科技特派团队项目。

摘　　要：为解决矿物凝聚除藻技术不能同步除氮除磷、材料易散失、底泥量大、去除效果持续性短等弊端,对11种矿物材料进行吸附去除NH_(4)^(+)-N、TP、Chl-a和TUB的性能测定筛选,以吸附NH_(4)^(+)-N效果最好的绿沸石为基础材料,制备5种免烧类绿沸石基复合材料(NGZC),分析NGZC的表面形貌结构,探讨了发泡剂和水泥用量、绿沸石与其余矿物的物料比等因素对NGZC净水性能的影响,以及NGZC投加量、水处理反应温度和时间等因素对去除河道污水中多种污染物效果的影响。结果表明,在设定的养护条件下,NGZC最佳制备条件为:水泥掺量为10%~15%,发泡剂掺量为0.25%~0.5%,绿沸石与牡蛎壳、凹凸棒石黏土、活性白土、水滑石、赤玉土的物料比分别为8∶2、4∶6、6∶4、4∶6、4∶6。最佳水处理条件为:25℃下,200 mL污染河水中加4 g NGZC,处理3 d。本研究为藻型富营养化水体的污染修复、非金属矿物和废弃物的资源化利用和水土保持等提供低成本的复合净水材料和新技术。In order to solve the problems of mineral condensation and algae removal technology,such as asynchronously remove nitrogen and phosphorus,easy loss of minerals,a ldge amount of sediment,and short duration of removal effect.The adsorption and removal properties of NH_(4)^(+)-N,TP,Chl-a and TUB by 11 mineral materials were determined and screened.Five types of unburned green zeolite based composite materials(NGZC)were prepared based on green zeolite with the optimal NH_(4)^(+)-N adsorption effect.The NGZC surface structure was observed,the influences of the amount of foaming agent and cement,the material ratio of green zeolite and the other minerals on the water purification performance were discussed and the effects of factors such as amount of NGZC dosage,reaction temperature and time of water treatment on the removal of multiple pollutants from river sewage were also discussed.The results showed that under the set curing conditions,the optimal preparation conditions were as follows:10%-15%cement,0.25%-0.5%foaming agent,mass ratio of green zeolite and oyster shell,convex clay,active clay,hydrotalatite,red jade soil for 8∶2,4∶6,6∶4,4∶6,4∶6.The optimal water treatment conditions were as follows:adding 4 g NGZC in 200 mL polluted river water at 25℃,and the best treating time was 3 d.This study can provide low-cost composite water purification materials and new technologies for the pollution remediation of algal eutrophic water bodies,the resource utilization of non-metallic minerals,and water and soil conservation,etc.

关 键 词：免烧类绿沸石基复合材料(NGZC) 吸氮除磷除藻 最佳制备条件 最佳水处理条件 富营养化水体 

分 类 号：TB332[一般工业技术—材料科学与工程] X703[环境科学与工程—环境工程]