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Appraisal of the tire derived rubber (TDR) medium for wastewater treatment under aerobic and anaerobic conditions

Naz, I, Khatoon, N, Ali, M, Saroj, DP, Batool, S, Ali, N and Ahmed, S (2013) Appraisal of the tire derived rubber (TDR) medium for wastewater treatment under aerobic and anaerobic conditions Journal of Chemical Technology and Biotechnology.

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Abstract

The present study evaluated the effectiveness and durability of TDR for biofilm development and related long term usage in fixed biofilm reactors for wastewater treatment. TDR incubated (30±2ºC) with activated sludge showed comparatively higher biofilm development (0.51g) under aerobic than under anaerobic (0. 42g) conditions after 7 weeks. During biofilm succession, a significant shift in bacterial community was observed from pathogenic to autotrophic after 4 weeks. The decreasing bacterial count (MPN index) ( 80%) (E .coli and feacal coliforms) and COD, and BOD (70% approx.) depicted diminishing organic load in sludge. While, changes in pH and nutrients like NO2-, NO3-, PO43-and SO32- indicated presence of other key-bacterial species with efficient nutrient consuming abilities in biofilm. Scanning Electron Microscopy showed few aberration and rich bacterial growth on treated TDR. Furthermore, detailed analysis through FTIR spectroscopy confirmed minor transformation in TDR under anaerobic conditions. TDR proved to be considerably durable and cost effective support material that can be used in aerobic fixed biofilm reactors for wastewater treatment. However, operational conditions of the reactor should be optimized to keep the biofilm structure intact and for achieving desired wastewater treatment efficiency.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
AuthorsEmailORCID
Naz, IUNSPECIFIEDUNSPECIFIED
Khatoon, NUNSPECIFIEDUNSPECIFIED
Ali, MUNSPECIFIEDUNSPECIFIED
Saroj, DPUNSPECIFIEDUNSPECIFIED
Batool, SUNSPECIFIEDUNSPECIFIED
Ali, NUNSPECIFIEDUNSPECIFIED
Ahmed, SUNSPECIFIEDUNSPECIFIED
Date : 23 June 2013
Identification Number : 10.1002/jctb.4161
Uncontrolled Keywords : Tire derive rubber (TDR), Biofilm, Microbial succession, Biological wastewater treatment
Additional Information : This is the accepted version of the following article: Naz I, Khatoon N, Ali M, Saroj DP, Batool S, Ali N, Ahmed S. Appraisal of the tire derived rubber (TDR) medium for wastewater treatment under aerobic and anaerobic conditions. Journal of Chemical Technology and Biotechnology 89 (4), which has been published in final form at http://dx.doi.org/10.1002/jctb.4161
Depositing User : Symplectic Elements
Date Deposited : 04 Feb 2015 17:22
Last Modified : 01 Apr 2015 01:08
URI: http://epubs.surrey.ac.uk/id/eprint/807164

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