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Biological treatment of acid dyeing wastewater using a sequential anaerobic/aerobic reactor system

Paper ID Volume ID Publish Year Pages File Format Full-Text
18687 42735 2006 6 PDF Available
Title
Biological treatment of acid dyeing wastewater using a sequential anaerobic/aerobic reactor system
Abstract

The treatment of the wastewater taken from a wool dyeing processing in a wool manufacturing plant was investigated using an anaerobic/aerobic sequential system. The process units consisted of an anaerobic UASB reactor and an aerobic CSTR reactor. Glucose, alkalinity and azo dyes were added to the raw acid dyeing wastewater in order to simulate the dye industry wastewater since the raw wastewater contained low levels of carbon, NaHCO3 and color through anaerobic/aerobic sequential treatment. The UASB reactor gave COD and color removals of 51–84% and 81–96%, respectively, at a HRT of 17 h. The COD and color removal efficiencies of the UASB/CSTR sequential reactor system were 97–83% and 87–80%, respectively, at a hydraulic retention time (HRTs) of 3.3 days. The aromatic amines (TAA) formed in the anaerobic stage were effectively removed in the aerobic stage.

Keywords
Acid wool dyeing; Azo dyes; Sequential; Biological treatment
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Biological treatment of acid dyeing wastewater using a sequential anaerobic/aerobic reactor system
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 38, Issue 7, 2 May 2006, Pages 887–892
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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