Article

Anaerobic Treatment of Real Textile Wastewater with a Fluidized Bed Reactor

San Diego State University, San Diego, California, United States
Water Research (Impact Factor: 5.53). 05/2003; 37(8):1868-78. DOI: 10.1016/S0043-1354(02)00577-8
Source: PubMed

ABSTRACT

Anaerobic treatability of a real cotton textile wastewater was investigated in a fluidized bed reactor (FBR) with pumice as the support material. The immobilized biomass or attached volatile solids level on the support material was 0.073 g VSS/g support material at the end of the 128-d start-up period. During the operation period, real cotton textile wastewater was fed to the anaerobic FBR both unsupplemented (in Stages 1 and 2) and supplemented (with synthetic municipal wastewater in Stage 3 and glucose in Stages 4-6). The effect of operational conditions such as organic loading rate (OLR), hydraulic retention time (HRT), influent glucose concentration as the co-substrate, etc. was investigated to achieve the maximum color removal efficiency in the reactor. Results indicated that anaerobic treatment of textile wastewater studied was possible with the supplementation of an external carbon source in the form of glucose (about 2g/l). The corresponding maximum COD, BOD(5) and color removals were found to be around 82%, 94% and 59%, respectively, for HRT of around 24h and OLR of 3 kg COD/m(3)/d. Further increase in external carbon source added to real textile wastewater did not improve the color removal efficiency of the anaerobic FBR reactor.

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Available from: Goksel Demirer, Mar 13, 2015
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    • "Total gas was measured by water displacement method and its content was measured by Gas Chromatography (GC)-Perkin Elmerduringthecharacterizationstudies. As expected, BOD values of fermantor I were higher than fermantor II (Fig 2)and that can be explained as the ozonation increases biodegradability of the wastewater[9],[10] "

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    • "In the end of the start-up period, in Anaerobic Fluidized Bed Reactor, attached volatile solid (AVS) concentration reached to 0.0185 gvss g −1 which is in accordance with ranges 0.074–0.11 reported byFarhan et al., 1997 [32], 0.039[33], 0.05[34], 0.0732[27]and 0.0375–0.429 gvss g −1 by[35]. "

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    • "Huge volumes of wastewater are generated from textile industries and they have strong resistance to biological degradation due to their chemical stability, and complex structures, as well as and toxic and carcinogenic characteristics.[1] [2] [3] Dye stuff is the major contaminant in the textile effluent and must be removed before discharging the effluent into an aqueous ecosystem because the polluted effluent seriously affects both the aesthetic quality and water transparency even at low concentrations.[4] Hence, textile wastewater has to be properly treated before being discharged into the water ecosystem. "
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