Applicability Evaluation and Water Quality Improvement of Dyeing Wastewater Treatment Processes

• Main Authors: WU, FONG-CHIH, 吳鳳池
• Other Authors: Chen, Hsi-Jien
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/89190315273090215613

碩士 === 明志科技大學 === 環境與安全衛生工程系環境工程碩士班 === 105 === This study evaluated the treatability of disperse dyeing wastewater at the real plant, comprising an anoxic reactor, four activated sludge treatment unit and an aerobic membrane bioreactor. The efficiency of the treatment unit in the plant was analyzed, and the effect of the addition of bacteria on the accumulation of the sludge was discussed. To begin with screening strains to the ability of accumulation from the sludge using textile industries wastewater treatment system sludge as the sludge source.Acinetobacter baumannii, Acidovorax sp., Diaphorobacter sp., Alicycliphilus denitrificans, Chryseobacterium daecheongens, was identified by 16S rRna. Next the decolorization efficiency analysis of microorganisms, the bacteria was cultured in a large quantity and put into real plant unit. The results demonstrated that decolorization efficiency of Disperse Blue 124 by WS01 was found to be 85% at 250 mg/L within 24 hours, when growth medium containing yeast extract compared to other substrates. Bioaugmentation beginning in a bioreactor receive a load of COD(1342 mg/L)and sludge concentration(5.3 g/L). The results showed that the colonization of Dominant bacteria, the COD removal was stable at 80%, while concentration of sludge was 9.5g / L in the system. Overall, the system was demonstrated to be effective in the treatment of the Disperse dyeing wastewater under the operating conditions applied in the study.