Slaughterhouse wastewater treatment using ferric and aluminium salts and organic polyelectrolites

被引：29
|
作者：
Núñez, LA [1 ]
Fuente, E
Martínez, B
García, PA
机构：
[1] Univ Burgos, Dept Biotechnol & Food Sci, Chem Engn Area, Burgos 09001, Spain
[2] Univ Valladolid, Dept Chem Engn, E-47002 Valladolid, Spain
来源：
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 1999年 / 34卷 / 03期
关键词：
slaughterhouse; wastewater; COD removal; coagulation;
D O I：
10.1080/10934529909376861
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Coagulation-flocculation processes have been applied for treating slaughterhouse wastewater. Three compounds: alum, ferric chloride, and PACl (Polyaluminium Chloride) were selected as coagulants. Coagulant dose and working pH were adjusted and selected through jar-test assays. The observed total COD removal rates appeared to be dependent on coagulants nature and the ratio between soluble and total COD concentrations values. Mixtures of PACl and a synthetic organic polymer, polyetilenimine, were also tested in order to reduce aluminium doses.
引用
收藏
页码：721 / 736
页数：16
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