多孔二氧化硅微球对制革工业废水中蛋白质的吸附分离研究  

Study on the adsorption and separation of protein in tannery wastewater by porous silica microspheres

作　　者：强涛涛 朱润桐 QIANG Tao-tao;ZHU Run-tong(College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi′an 710021, China)

机构地区：[1]陕西科技大学轻工科学与工程学院轻化工程国家级实验教学示范中心,陕西西安710021

出　　处：《陕西科技大学学报》2022年第4期22-29,共8页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅重点科技创新团队计划项目(2020TD-009);陕西省教育厅青年创新团队建设计划项目(21JP014)。

摘　　要：由于制革工业废水中存在着大量的蛋白质,会造成水体富营养化.因此,亟需一种吸附剂用于吸附分离废水中的蛋白质,从而为蛋白质的回收再利用提供可能,实现废水污染物的高附加值利用.以生物质材料BA栲胶为模板,采用模板法合成多孔二氧化硅(SiO_(2))微球,并用于吸附溶菌酶(LZ).结果表明:在最佳条件下,多孔SiO_(2)微球对LZ的吸附容量达到46 mg/g,吸附过程符合准二级动力学模型和Langmuir等温模型,且在经过6次循环后,吸附率仍达到80%以上.多孔SiO_(2)微球对实际制革工业废水中的蛋白质有一定的吸附分离效果.Because there is a large amount of protein in the tannery wastewater,it will cause the eutrophication of the water body.Therefore,there is an urgent need for an adsorbent for adsorbing and separating the protein in the wastewater,so as to provide the possibility for the recovery and reuse of the protein and realize the high value-added utilization of wastewater pollutants.Using the biomass material BA tannin extract as the template,the porous silica(SiO_(2))microspheres were synthesized by the template method and used to adsorb lysozyme(LZ).The results show that under the optimal conditions,the adsorption capacity of porous silica microspheres for LZ reaches 46 mg/g,the adsorption process conforms to the quasi-second-order kinetic model and the Langmuir isotherm model,and after 6 cycles,the adsorption rate still reaches more than 80%.Porous silica microspheres have a certain adsorption and separation effect on the protein in the actual leather industry wastewater.

关 键 词：多孔二氧化硅微球 生物质模板 蛋白质吸附 制革工业废水处理 

分 类 号：TQ424.2[化学工程]