EVALUATION OF VARIOUS FLOCCULANTS FOR THE RECOVERY OF ALGAL BIOMASS GROWN ON PIG-WASTE

被引：37

作者：

BUELNA, G ^{[1
]}

BHATTARAI, KK ^{[1
]}

DELANOUE, J ^{[1
]}

TAIGANIDES, EP ^{[1
]}

机构：

[1] INT DEV RES CTR,TANGLIN 9124,SINGAPORE

来源：

BIOLOGICAL WASTES | 1990年 / 31卷 / 03期

关键词：

Algal Biomass - Flocculants - Pig Wastes;

D O I：

10.1016/0269-7483(90)90160-T

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Laboratory experiments were conducted to compare the effectiveness of chitosan (by-product derived from shrimp and crab shells), Zetag 63 and CF 400 (hydrolyzed polyacrylamide) as flocculants to concentrate a mixed culture of chlorophyceae dominated by Chlorella sp. The algae were grown in a high-rate algal pond (HRAP) fed with dilute pig-waste. Algal sedimentation rates were measured in the laboratory. For a pH range of 6·0-9·0, flocculation efficiency of 95-100% was obtained at 20 mg/liter chitosan and 5 mg/liter Zetag 63. The optimum range of initial biomass concentration for maximum algal recovery was found to be 100-200 mg dry weight algae/liter. © 1990.

引用

页码：211 / 222

页数：12

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