织带厂废水处理工艺优化及工程应用研究

优化了水解酸化-接触氧化-混凝处理工艺中的停留时间、混凝剂种类和用量,并将优化后的工艺参数在某织带废水处理工程中进行了应用。结果表明,以硫酸亚铁作为絮凝剂,该织带厂废水经过20h处理后效果良好;其中,pH下降了2.9,CODcr及BOD₅去处效率均达到90%以上,色度去除率达85%;可以确保该织带厂污水处理后达到《广东省水污染物排放限值》(DB44/26-2001)中的第二时段一级标准。该试验为解决广东省织带厂废水处理提供了一条可行途径,并对该类型高浓度染料废水的治理具有借鉴和参考价值。

Ribbon weaving wastewater treatment technique and its application

A process of hydrolytic acidification-contact oxidation-flocculation was optimized, and applied in the treatment of wastewater from a ribbon weaving factory in Zhuhai, Guangdong Province. Results showed that the pollutants were successful removed from waster water after using FeSO4 as flocculant and 20 h contact oxidation. After treatment, pH and Chroma decreased 2.9 and 85%, respectively. Both CODcr and BOD5 were removed more than 90%. This method ensured the effluent meet the waster water discharged standards of Guaongdong (DB44/26-2110). The experimental results indicated this technique can provide a flexible method in the wastewater treatment and provide useful information for similar wastewater treatment.