Arslan Alaton Idil, Insel Güçlü, Eremektar Gülen, Germirli Babuna Fatos, Orhon Derin
Istanbul Technical University, Faculty of Civil Engineering, Environmental Engineering Department, 34469 Maslak, Istanbul, Turkey.
Chemosphere. 2006 Mar;62(9):1549-57. doi: 10.1016/j.chemosphere.2005.06.010. Epub 2005 Aug 10.
The textile industry is confronted with serious environmental problems associated with its immense wastewater discharge, substantial pollution load, extremely high salinity, and alkaline, heavily coloured effluent. Particular sources of recalcitrance and toxicity in dyehouse effluent are two frequently used textile auxiliaries; i.e. dye carriers and biocidal finishing agents. The present experimental work reports the observation of scientific and practical significance related with the effect of two commercially important textile dye carriers and two biocidal finishing agents on biological activated sludge treatment at a textile preparation, dyeing and finishing plant in Istanbul. Respirometric measurements of the dyehouse effluent spiked with the selected textile chemicals were carried out for the assessment of the "readily biodegradable COD fraction" of the wastewater. The respirometric data obtained to visualize the effect of the selected textile auxiliaries on biomass activity was evaluated by an adopted activated sludge model. Results have indicated that the tested biocides did not exert any significant inhibitory effect on the treatment performance of the activated sludge reactor at the concentrations usually encountered in the final, total dyehouse effluent. The situation with the dye carriers was inherently different; one dye carrier appeared to be highly toxic and caused serious inhibition of the microbial respirometric activity, whereas the other dye carrier, also known as the more ecological alternative, i.e. the "Eco-Carrier", appeared to be biodegradable. Finally, the respirometric profile obtained for the Eco-Carrier was described by a simplified respirometric model.
纺织工业面临着严重的环境问题，这些问题与其大量的废水排放、巨大的污染负荷、极高的盐度以及碱性、高色度的废水有关。印染厂废水中顽固性和毒性的特定来源是两种常用的纺织助剂，即染料载体和杀菌整理剂。本实验工作报告了在伊斯坦布尔的一家纺织预处理、染色和整理厂中，两种具有商业重要性的纺织染料载体和两种杀菌整理剂对生物活性污泥处理效果的相关科学和实际意义的观察结果。对添加了选定纺织化学品的印染厂废水进行了呼吸测量，以评估废水的“易生物降解化学需氧量部分”。通过采用的活性污泥模型对获得的用于可视化选定纺织助剂对生物质活性影响的呼吸测量数据进行了评估。结果表明，在所测试的杀菌剂在印染厂最终总废水中通常遇到的浓度下，对活性污泥反应器的处理性能没有产生任何显著的抑制作用。染料载体的情况则截然不同；一种染料载体似乎具有高毒性，并对微生物呼吸活性造成严重抑制，而另一种染料载体，也就是所谓的更具生态性的替代品，即“生态载体”，似乎是可生物降解的。最后，用一个简化的呼吸测量模型描述了生态载体的呼吸测量曲线。
