CAJ | 학술논문

以蛭石为原料，以硫酸为改性剂，制备无机絮凝剂．使用扫描电子显微镜和 XRD 分析仪对其进行表征分析．对混浊的河水进行初步絮凝实验，效果较好．在此基础上，研究絮凝剂投加量、体系 pH、搅拌速率、搅拌时间、沉淀时间以及温度对絮凝效果的影响．由实验结果可知：在水温30,℃、调节水样 pH 为8、絮凝剂投加量为300,mg/L 条件下，120,r/min快速搅拌2,min，40,r/min慢速搅拌15,min，静置20,min后浊度由189.3,NTU降至0.6,NTU，浊度去除率达到99.7%．
이질석위원료，이류산위개성제，제비무궤서응제．사용소묘전자현미경화 XRD 분석의대기진행표정분석．대혼탁적하수진행초보서응실험，효과교호．재차기출상，연구서응제투가량、체계 pH、교반속솔、교반시간、침정시간이급온도대서응효과적영향．유실험결과가지：재수온30,℃、조절수양 pH 위8、서응제투가량위300,mg/L 조건하，120,r/min쾌속교반2,min，40,r/min만속교반15,min，정치20,min후탁도유189.3,NTU강지0.6,NTU，탁도거제솔체도99.7%．
Inorganic flocculant was prepared with vermiculite and sulfuric acid as the modifier,and the obtained flocculant was characterized using scanning electron microscope(SEM)and X-ray Diffraction(XRD). The results of preliminary treat-ment test of turbid river water showed that the flocculant exhibited excellent flocculation. Furthermore,the influence of floc-culant dosage,pH,stirring speed and time,as well as settling time and temperature,were systematically investigated. It was found that the optimal flocculation can be obtained under the following conditions:temperature 30,℃,pH 8,flocculant dos-age 300,mg/L,rapid mixing of 2,min with 120,r/min,slow mixing of 15,min with 40,r/min,and letting stand for 20,min. The turbidity of water after flocculation could drop from 189.3,NTU to 0.6,NTU with the removal rate of 99.67%.