城市污泥-餐厨垃圾联合制备水凝胶及其溶胀性分析  

Preparation of Hydrogels From Municipal Sludge-food Waste and Analysis of Its Swelling Property

作　　者：刘蕾[1] 王钊钧 张杰 宋雨晴 李亚林[1] Liu Lei;Wang Zhaojun;Zhang Jie;Song Yuqing;Li Yalin(College of Environment and Bioengineering,He'nan University of Engineering,He'nan,451191;He'nan Penglong Industry Co.,Ltd.,He'nan,450016)

机构地区：[1]河南工程学院环境与生物工程学院,河南451191 [2]河南鹏龙实业有限公司,河南450016

出　　处：《当代化工研究》2024年第4期74-77,共4页Modern Chemical Research

基　　金：河南省科技攻关项目“餐厨垃圾-城市污泥组分共回收制备高保水复合凝胶缓释肥技术研究与应用”(项目编号:212102310064);河南省2023年大学生创新创业训练计划省级项目“交变电场-纳米CaO2高级氧化强化市政污泥深度脱水研究”(项目编号:202311517017)。

摘　　要：以城市污泥和餐厨垃圾作为原料,辅助以单体丙烯酸,交联剂N,N-亚甲基双丙烯酰胺和引发剂过硫酸钠,通过接枝聚合反应合成水凝胶。通过单因素实验考察了水凝胶制备的影响因素,并利用响应曲面法进行了优化实验,结果表明在污泥与餐厨垃圾干质量比为2:3,浆液含水率为96.1%,反应温度为70℃,投加2.25mL的单体,0.10g的交联剂,0.2g的激发剂时,制得水凝胶的最佳溶胀率能达到5400.93%。通过扫描电镜表征发现水凝胶具有众多网络褶皱和沟壑结构,从而使其具有良好的溶胀性能。The hydrogels were synthesized by graft polymerization reaction using municipal sludge and food waste as raw materials,assisted by monomer acrylic acid,cross-linking agent N,N'-methylenebisacrylamide and initiator sodium persulfate.The influencing factors of hydrogel preparation were investigated through one-factor experiments,and optimization experiments were carried out using the response surface method,which showed that when the dry mass ratio of sludge to food waste was 2:3,the slurry water content of 96.1%,the reaction temperature was 70℃,and the addition of 2.25 mL of the monomer,0.10 g of the cross-linking agent,and 0.2 g of the initiator,the optimal dissolution rate of the hydrogel produced could reached 5400.93%.The hydrogel was characterized by scanning electron microscopy and found to have many network folds and grooves,which resulted in good swelling performance.

关 键 词：城市污泥 餐厨垃圾 水凝胶 溶胀性能 碳组分 

分 类 号：X705[环境科学与工程—环境工程]