| Abstrakt: |
This paper examined the performance of an integrated wastewater treatment system, namely an Electro-Fenton (EF) with Anaerobic Sequencing Batch Reactor (ASBR), for textile dyeing wastewater. Laboratory-scale feasibility studies on electro-Fenton processes using a novel steel flake used as a catalyst were carried out to investigate the color and chemical oxygen demand (COD) by effects of optimum variables such as pH, catalyst dose, and H2O2 dose by varying one variable at a time. A novel steel flakes, which were used as a catalyst in this research, had particle dimensions ranging from 0.25 to 1.75 mm. To characterize the steel flakes, Scanning Electron Microscopy (SEM), EDAX, Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), and Thermo Gravimetric Analysis (TGA) were used. Performance of novel electro-Fenton and anaerobic sequencing batch reactor treating textile dyeing wastewater was evaluated. Electro-Fenton with steel flakes catalyst treatment was able to remove 97.5% color and59% COD and the pre-treated effluent was transferred to anerobic sequencing batch reactor biological treatment. The maximum color and COD removal of 100% and 94% respectively in the coupled process. The use of steel flakes catalyst in the combined electro-Fenton with ASBR reaction greatly improves COD removal without formation of sludge. Thus, the developed system is economically feasible and superior to other conventional treatment systems. [ABSTRACT FROM AUTHOR] |
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