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A preliminary study on cactus as coagulant in water treatment

Paper ID Volume ID Publish Year Pages File Format Full-Text
36400 45131 2006 4 PDF Available
Title
A preliminary study on cactus as coagulant in water treatment
Abstract

The coagulation performance of cactus to act as natural macromolecular coagulant was studied by the jar test. The cactus coagulation attained comparatively high turbidity removal efficiency, and water with turbidity less than 5NTU could be obtained with initial turbidities from 20 to 200. When used to treat the same water sample, the optimum dosage of cactus coagulant was found similar to that of AlCl3·6H2O. Effects of factors such as pH, temperature, alkalinity on cactus coagulation were also studied. High removal efficiency of turbidity and COD could be obtained when cactus solids were used to treat sewage water, potable water source (taken from Changjiang, Wuhan) and high turbidity seawater. When cactus was used with AlCl3·6H2O synchronously to treat sewage water, the removal efficiency of turbidity and COD were higher than that of cactus or AlCl3·6H2O was used solely.

Keywords
Natural coagulants; Cactus; Coagulation performance; Turbidity removal efficiency; COD removal efficiency; Surface water treatment
First Page Preview
A preliminary study on cactus as coagulant in water treatment
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 3, March 2006, Pages 730–733
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering