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An Anaerobic Fixed Film Reactor for the Treatment of Organic Substance and Dye from Textile Wastewater

Name: Êعѹ·Ò àÅÒÇѳÂìÈÔÃÔ

Organization : ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ

keyword: Textile industry

; ¡ÒúӺѴ·Ò§ªÕÇÀÒ¾

; Biological treatment

Abstract: This research aims to study the effectiveness of anaerobic fixed film reactor for the removal of organic substance and reactive dye froin textile wastewater. A 0.5 L of laboratoryscale anaerobic fixed filin reactors containing different inedia namely, granular activated carbon(GAC), ntbber tyre and plastic were carried out. Simulated textile wastewater with glucose as carbon source (600 mgll) together with 40 ingll of reactive azo dye (C.I. Reactive Red 141) was semi-contiiiuously fed to each reactor. The performances of each reactor were investigated at the hydraulic retention time (HRT) of 24, 12 and 6 h which correspondence to the organic loading of 0.94, 1.89 and 3.78 g CODIday, respectively.Results revealed that the maxiin~tinC OD reinoval efficiencies for reactor containing GAC, rubber tyre and plastic inedia were 75.25, 62.16 and 59.92 %, respectively, at the HRT of 12 h. The decolorization efficiencies were found to decreased as the HRT decreased. The decolorization efficiency was achieved over 80 % for GAC media at the shortest HRT of 6 h, whereas the 22 and 20 % were found in ntbber tyre and plastic media, respectively. After 228 days of operation, the attached biomass on the inedia was determined quantitatively and qualitativeIy. Results from scanning electron inicroscope analysis showed that a roughness surface of GAC provided a good supporting of microbial attachment of which the biomass concentration 0.035 g MLSSIg GAC media. Meanwhile, the biomass concentrations froin the surface of rubber tyre and plastic inedia were about a half of the GAC inedia. To investigate the effect of adsorption capacity of GAC in the reactor containing GAC inedia, the adsorption isotherm of biological activated carbon (BAC) and used GAC were analyzed and compared with virgin GAC. It could be concluded that adsorption of reactive dye played an important role in the initial stage of operation and gradually decreased as time going on. The adsorption of reactive dye by BAC was very low and could be negligible. In addition, the adsorption of COD was low although the virgin GAC was used.

ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ

Address: ¡Ãا෾ÁËÒ¹¤Ã

Email: info.lib@mail.kmutt.ac.th

Name: ÊÃéÍ´ÒÇ ÇÔ¹Ô¨¹Ñ¹·Ãѵ¹ì

Role: ÍÒ¨ÒÃÂì·Õè»ÃÖ¡ÉÒ

Created: 2544

Issued: 2007-02-08

Modified: 2558-02-05

ÇÔ·ÂÒ¹Ô¾¹¸ì/Thesis

ISBN: 9746288881

CallNumber: EV298

tha

DegreeName: ÇÔ·ÂÒÈÒʵÃÁËҺѳ±Ôµ

Level: »ÃÔ­­Òâ·

Descipline: à·¤â¹âÅÂÕÊÔè§áÇ´ÅéÍÁ

Grantor: ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ

©copyrights ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ

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