THE CHEMICAL NATURE OF PRECIPITATES FORMED IN SOLUTIONS OF PARTIALLY NEUTRALIZED ALUMINUM SULFATE

被引：8

作者：

BEECROFT, JRD ^{[1
]}

KOETHER, MC ^{[1
]}

VANLOON, GW ^{[1
]}

机构：

[1] QUEENS UNIV,DEPT CHEM,KINGSTON,ON K7L 3N6,CANADA

来源：

WATER RESEARCH | 1995年 / 29卷 / 06期

关键词：

ALUM; COAGULANT; PARTIALLY NEUTRALIZED ALUMINUM SULFATE; PRECIPITATE;

D O I：

10.1016/0043-1354(94)00309-U

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study examined the solid degradation products formed in partially neutralized aluminum sulfate (PNAS) solutions. The PNAS, which has superior properties as a coagulant for treatment of some waters, suffers from instability as is evidenced by a precipitate which forms with age. The precipitate was found to contain aluminum and sulfate, but the ratio of these two species changed over time. It is suggested that the observed increase in sulfate content in the solids is consistent with the view that polymeric aluminum species are preferentially precipitated during the initial stages followed by monomeric species as degradation continues.

引用

页码：1461 / 1464

页数：4

共 12 条

[1] CHARACTERIZATION OF HYDROXY-ALUMINUM SOLUTIONS [J].