Anaerobic digestion: A viable option for the treatment of chlorophenolic wastes. | [Environ Monitor • 2009]

Author(s):

1. Arshad Ali: College of Civil Engineering (MCE-NUST) Risalpur, Khyber Pakhtunkhwa, Pakistan

2. Hashim Nisar Hashmi: Department of Civil Engineering, University of Engineering & Technology (UET), Taxila, Pakistan

3. Intikhab Ahmad Qurashi: College of Civil Engineering (MCE-NUST) Risalpur, Khyber Pakhtunkhwa, Pakistan

4. Rabia Haroon: College of Civil Engineering (MCE-NUST) Risalpur, Khyber Pakhtunkhwa, Pakistan

Abstract:

This paper reflects the importance of UASB technology for the treatment of chlorophenolic wastes. Most of the industries in Pakistan are discharging their effluent without any treatment into the receiving water sources, thus causing a great damage to the eco-system. It is estimated that from the pulp and paper mills about 300 cum of wastewater per tone of production is generated. The black liquor and the bleaching effluent are the major sources of pollution generating from the paper mills. Absorbable Organic Halides (AOX) is formed as a result of reaction between residual lignin from the black liquor and chlorine and chlorine compounds used during the bleaching process. The AOX are hydrophobic, persistent, bio-accumulative and carcinogenic. Chlorophenol is one of the main components of AOX that are toxic to wide range of organisms. As the UASB technology has been used for the treatment of variety of wastes therefore innovative approach needs to be developed for the overall improvement of anaerobic technology for treating chlorophenolic wastes, especially generating from the NSSC pulping and paper mills effluent in Pakistan.

Page(s): 5-12

DOI: DOI not available

Published: Journal: Environ Monitor, Volume: 9, Issue: 3, Year: 2009

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