Krull R, Döpkens E
Institute of Biochemical Engineering, Technical University of Braunschweig, Gaussstrasse 17, 38106 Braunschweig, Germany.
Water Sci Technol. 2004;49(4):311-7.
A combined biological and chemical process of purification and recycling of residual dyehouse effluents was developed, investigated and installed at a textile finishing company which produces 330,000 m3 colored wastewater effluents per year. The process divided effluent into two streams. Both streams were subjected to anaerobic dye-cleavage, aerobic mineralization of cleavage-products and biomass separation. One stream was also membrane filtered and treated with ozone, which made possible the recycling of 60% of the total discharge. By these means it was possible to increase the quality of the treated streams for recycling purposes, as well as the dye capacity of the textile mill, and to minimize the operating costs. Furthermore, the municipal wastewater treatment plant into which the textile finishing mill's water is discharged, did not need to enhance its capacity.
开发了一种用于印染厂残留废水净化与循环利用的生物与化学联合工艺，并在一家每年产生33万立方米有色废水的纺织后整理公司进行了研究与安装。该工艺将废水分为两股水流。两股水流均经过厌氧染料分解、分解产物的好氧矿化以及生物质分离。其中一股水流还经过了膜过滤和臭氧处理，这使得总排放量的60%得以循环利用。通过这些手段，既提高了用于循环目的的处理后水流的质量，又提高了纺织厂的染料处理能力，并将运营成本降至最低。此外，纺织后整理厂废水排入的城市污水处理厂无需提高其处理能力。
