Performance evaluation of a granular activated carbon-sequencing batch biofilm reactor pilot plant system used in treating real wastewater from recycled paper industry

The application of a granular activated carbon-sequencing batch biofilm reactor (GAC-SBBR) for treatment of wastewater containing 1,000 mg/L Acid Red 18 (AR18) was investigated in this research. The treatment system consisted of a sequencing batch reactor equipped with moving GAC as biofilm support. Each treatment cycle consisted of two successive anaerobic (14 h) and aerobic (8 h) reaction phases. Removal of more than 91% chemical oxygen demand (COD) and 97% AR18 was achieved in this study. Investigation of dye decolorization kinetics showed that the dye removal was stimulated by the adsorption capacity of the GAC at the beginning of the anaerobic phase and then progressed following a first-order reaction. Based on COD analysis results, at least 77.8% of the dye total metabolites were mineralized during the applied treatment system. High-performance liquid chromatography analysis revealed that more than 97% of 1-naphthyalamine-4-sulfonate as one of the main sulfonated aromatic constituents of AR18 was removed during the aerobic reaction phase. According to the scanning electron microscopic analysis, the microbial biofilms grew in most cavities and pores of the GAC, but not on the external surfaces of the GAC.

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Preliminary studies on the granular activated carbon-sequencing batch biofilm reactor

Environmental Progress ◽

10.1002/ep.670100415 ◽

1991 ◽

Vol 10 (4) ◽

pp. 282-289 ◽

Cited By ~ 20

Author(s):

R. Chozick ◽

R. L. Irvine

Keyword(s):

Activated Carbon ◽

Granular Activated Carbon ◽

Biofilm Reactor ◽

Sequencing Batch Biofilm Reactor

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Treatment of Adsorbable Organic Halides from Recycled Paper Industry Wastewater using a GAC-SBBR Pilot Plant System

Journal of Applied Sciences ◽

10.3923/jas.2011.2388.2393 ◽

2011 ◽

Vol 11 (13) ◽

pp. 2388-2393 ◽

Cited By ~ 7

Author(s):

M.H. Muhamad ◽

S.R.S. Abdullah ◽

A.B. Mohamad ◽

R.A. Rahman ◽

A.A.H. Khadum

Keyword(s):

Pilot Plant ◽

Paper Industry ◽

Recycled Paper ◽

Plant System ◽

Adsorbable Organic Halides ◽

Organic Halides ◽

Industry Wastewater

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Granular Activated Carbon Sequencing Batch Biofilm Reactor to Treat Problematic Wastewaters

Water Science & Technology ◽

10.2166/wst.1992.0561 ◽

1992 ◽

Vol 26 (5-6) ◽

pp. 1195-1203 ◽

Cited By ~ 12

Author(s):

M. A. A. Jaar ◽

P. A. Wilderer

Keyword(s):

Activated Carbon ◽

Granular Activated Carbon ◽

Biofilm Reactor ◽

Adsorptive Capacity ◽

Substrate Removal ◽

Sequencing Batch Biofilm Reactor ◽

Subsequent Decrease ◽

Activated Carbon Filter ◽

Micro Organisms ◽

Carbon Filter

Experiments were conducted to study the performance of a reactor packed with granular activated carbon, and operated in a sequencing fill and draw mode. The reactor was inoculated with micro-organisms, loaded with a solution of 3-chlorobenzoate and thioglycolic acid. Oxygen was transfered to the microorganisms by means of silicon rubber tubings embedded in the activated carbon bed. Comparative studies were conducted with a continuous flow activated carbon filter and with a reactor packed with sand instead of granular activated carbon. Periodic operation of the granular activated carbon reactor provided superior results. High substrate removal efficiency was achieved as was high process stability under shock loading conditions, the latter mainly as a result of intermediate adsorption and subsequent decrease of toxic effects. After a period of 14 months of continuous operation the activated carbon had maintained about 90 per cent of its adsorptive capacity.

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