Slaughterhouse wastewater treatment using ferric and aluminium salts and organic polyelectrolites

Authors
Nunez, LA Fuente, E Martinez, B Garcia, PA
Citation
La. Nunez et al., Slaughterhouse wastewater treatment using ferric and aluminium salts and organic polyelectrolites, J ENVIR S A, 34(3), 1999, pp. 721-736
Citations number
13
Categorie Soggetti
Environment/Ecology
Journal title
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
ISSN journal
10934529 → ACNP
Volume
34
Issue
3
Year of publication
1999
Pages
721 - 736
Database
ISI
SICI code
1093-4529(1999)34:3<721:SWTUFA>2.0.ZU;2-2
Abstract
Coagulation-flocculation processes have been applied for treating slaughter house wastewater. Three compounds: alum, ferric chloride, and PACl (Polyalu minium 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 r educe aluminium doses.