聚合钛铁净水剂混凝效果及污泥沉降性能

doi:10.3976/j.issn.1002-4026.2020.02.015

Abstract

Abstract: 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 CODCr 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.

Key words: ferric titanium water purifier, coagulation effect, settling performance, sludge volume

CLC Number:

X703

HUANG Xin, SU Man-man, FU Ying. Coagulation effect and sludge settlement performance of polyferric titanium water purifier[J].Shandong Science, 2020, 33(2): 106-112.

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Coagulation effect and sludge settlement performance of polyferric titanium water purifier

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