摘要
以钛铁矿为原料制备聚合钛铁净水剂(I-PTF),并利用扫描电子显微镜和X射线衍射仪分析其微观特性。通过烧杯实验和污泥沉降实验研究I-PTF净水效果和污泥沉降性能,并利用荧光显微镜观察其污泥形貌。结果表明:I-PTF对COD Cr的去除效果优于聚合氯化铝(PAC),在投药量为168 mg/L时,I-PTF对于COD Cr的去除率比PAC高22%;与PAC相比,I-PTF的污泥体积减量率达到80%以上,其沉降速度也快,11 min左右即可沉降完成;I-PTF形成的絮团更加紧密,边界更加清晰。
Polyferric titanium water purification agent(I-PTF)was prepared from ilmenite and its microscopic properties were analyzed using scanning electron microscopy and X-ray diffraction.The water purification effect and sludge settling performance of I-PTF were studied through beaker and sludge settling experiment.The morphology of sludge was observed using a fluorescence microscope.Results showed that the removal rate of COD Cr by I-PTF was better than polyaluminium chloride(PAC).When the dosage was 168 mg/L,the removal rate of COD Cr by I-PTF was 22%,and it was higher than that of PAC.Compared with PAC,the sludge volume reduction rate by I-PTF was more than 80%,and its settling speed was faster.The settling could be completed in approximately 11 minutes.The flocs formed using I-PTF were more compact and the boundary was clearer.
作者
黄鑫
苏漫漫
付英
HUANG Xin;SU Man-man;FU Ying(School of Civil Engineering and Architecture,University of Jinan,Jinan 250022,China;Macun Middle School,Jining 272402,China)
出处
《山东科学》
CAS
2020年第2期106-112,共7页
Shandong Science
基金
国家自然科学基金青年科学基金(51808257)
济南大学教师境外访学资助项目(2017—2020)。
关键词
钛铁净水剂
混凝效果
沉降性能
污泥量
ferric titanium water purifier
coagulation effect
settling performance
sludge volume
