Department of Water Engineering and Chemistry, Politecnico di Bari, via Orabona 4, 70125 Bari, Italy.
N Biotechnol. 2011 Dec 15;29(1):9-16. doi: 10.1016/j.nbt.2011.04.008. Epub 2011 Apr 30.
Textile wastewater is difficult to treat as it usually contains considerable amounts of different pollutants, which are often recalcitrant, toxic and inhibitory. Therefore, complex treatment schemes based on the sequence of various steps are usually required for an effective treatment. This explains why textile effluents are often treated in centralized plants and sometimes mixed with municipal wastewater. The adoption of new technologies for on-site treatment, instead, would be optimal, deeply reducing treatment costs. An innovative technology exhibiting several characteristics appropriate for the attainment of such a goal is sequencing batch biofilter granular reactor (SBBGR). To assess the suitability of this technology, two lab-scale reactors were operated, treating mixed municipal-textile wastewater and a pure textile effluent, respectively. Results have demonstrated that mixed wastewater can be successfully treated with very low hydraulic retention times (less than 10 hours). Furthermore, SBBGR shows to be an effective pre-treatment for textile wastewater for discharge into sewer systems. The economic evaluation of the process showed operative costs of 0.10 and 0.19 € per m(3) of mixed wastewater and textile wastewater, respectively.
纺织废水处理困难，因为它通常含有相当数量的不同污染物，这些污染物往往具有顽固性、毒性和抑制性。因此，为了进行有效的处理，通常需要基于各种步骤顺序的复杂处理方案。这就是为什么纺织废水通常在集中式工厂进行处理，有时还与城市污水混合处理的原因。采用现场处理的新技术，而不是，将是最佳的，大大降低处理成本。序批式生物滤池颗粒反应器（SBBGR）是一种具有多项适合实现这一目标的特性的创新技术。为了评估这项技术的适用性，运行了两个实验室规模的反应器，分别处理混合的城市-纺织废水和纯纺织废水。结果表明，混合废水可以在非常低的水力停留时间（小于 10 小时）下成功处理。此外，SBBGR 可作为纺织废水排入下水道系统的有效预处理方法。该工艺的经济评估显示，混合废水和纺织废水的运行成本分别为每立方米 0.10 和 0.19 欧元。
