| Abstract |
| Conventional activated sludge process and oxidation process in treating high-salt textile dyeing wastewater are inappropriate due to high level of solids, organic, and chromaticity. The objective of this study was conducted to evaluate the performance of different configurations of high-rate filter (HRF) packed with cube sponge media (CSM) as an alternative pretreatment process to conventional primary settler processes and anaerobic biofilm filter (CPM-ANBF) packed with cylindrical plastic media (CPM) for efficient textile wastewater treatment. The removal of pH, suspended solid (SS), color, and chemical oxygen demand (COD) were monitored. The performance efficiency of the CMS-HRF with much shorter hydraulic retention time (HRT: 0.3 h) was very similar to that of coagulation-sedimentation using high coagulant dose and the conventional settler with a longer HRT of 3.0 h. The CMS-HRF process having high SS removal and a shorter HRT can mitigate the headloss development of the CPM-ANBF bed in reducing SS in the influent into the CPM-ANBF process. The efficiencies of CPM-ANBF process with 3 h in empty bed contact time achieved SS 32.5±0.5%, COD 27.1±0.4%, BOD 36.7±0.6%, color 29.7±0.4%, T-N 16.8±0.3%, T-P 24.8±0.5%, respectively. Compared with the existing physicochemical system, the most efficient configurations of the CMS-HRF/CPM-ANBF system with a shorter HRT achieved both higher pollutant removal efficiency and lower sludge production. |
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| Key Words |
| 고율여과지, 원통형플라스틱여재, 혐기성생물막여과조, 실제염색폐수, Anaerobic biofilm filter, Cylindrical plastic media, High-rate Filter, Real Textile Wastewater |
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