Pasukphun N, Vinitnantharat S
Division of Environmental Technology, School of Energy and Material, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok, Thailand.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2003;38(10):2019-28. doi: 10.1081/ese-120023329.
Textile wastewater generally consists of high organic substances and is strongly colored. Reactive dye has been used extensively in the textile industries. It is water soluble and difficult to remove by chemical coagulation. Removal of organic substances simultaneously with dye can be achieved by a biological process. This study aims to investigate the treatability of the organic substances and reactive dye in immobilized-cell sequencing batch reactors (SBR). Three different supporting medias namely activated carbon, steel slag and plastic were used. The performance of each reactor was compared with a conventional sequencing batch reactor. The simulated textile wastewater containing the reactive azo dye Procion Red H-E7B of a concentration of 40 mg/L and COD 300 mg/L, was fed into the reactors. The supporting media in the SBR system, it will enhance the capability of COD and dye operating of the SBRs consisted of 5 periods; Fill 1.5 h, React (anoxic:oxic) 20 (14:6) h, Settle 1.5 h, Draw 0.5 h and Idle 0.5 h. The results revealed that by adding removal. During a steady state of operation, the COD and dye concentrations of each period were investigated. In addition, the prolonged anoxic period brought about better decolorization efficiency.
纺织废水一般含有高浓度有机物质且颜色很深。活性染料在纺织工业中被广泛使用。它可溶于水，难以通过化学混凝去除。通过生物工艺可以实现有机物质与染料的同时去除。本研究旨在调查固定化细胞序批式反应器（SBR）中有机物质和活性染料的可处理性。使用了三种不同的支撑介质，即活性炭、钢渣和塑料。将每个反应器的性能与传统序批式反应器进行比较。将含有浓度为40mg/L的活性偶氮染料普施安红H-E7B和300mg/L化学需氧量（COD）的模拟纺织废水注入反应器。SBR系统中的支撑介质将提高由5个周期组成的SBR对COD和染料的处理能力；进水1.5小时，反应（缺氧：好氧）20（14：6）小时，沉淀1.5小时，排水0.5小时，闲置0.5小时。结果表明，通过添加可实现去除。在稳定运行状态下，对每个周期的COD和染料浓度进行了研究。此外，延长缺氧期可带来更好的脱色效率。
