水解酸化-生物接触氧化工艺处理合成橡胶废水

Treatment of Synthetic Rubber Wastewater by Hydrolytic Acidification Biological Contact Oxidation Process

对合成橡胶废水提出了水解酸化与生物接触氧化相结合的处理工艺。试验研究表明，该工艺对ＣＯＤ和ＢＯＤ５的平均去除率分别为８７．５％和９０％。在进水ＣＯＤ和ＢＯＤ５分别平均为６５６ｍｇ／Ｌ和２８６ｍｇ／Ｌ的情况下，出水ＣＯＤ和ＢＯＤ５分别平均为８２ｍｇ／Ｌ和２８．６ｍｇ／Ｌ，达到国家排放标准。水解酸化可将合成橡胶废水的ＢＯＤ５／ＣＯＤ由０．４４提高至０．５６。

A study on the treatment of synthetic rubber wastewater by hydrolytic acidification biological contact oxidation process is presented in this paper. Experiment results show that COD can be reduced from 656 mg/L to 82 mg/L and BOD 5 from 286 mg/L to 28.6 mg/L by the process, with 87.5% and 90% of average removal rate respectively, which can meet the national discharge standards. The biodegradability (BOD 5/COD) of synthetic rubber wastewater can be raised from 0.44 to 0.56 via hydrolytic acidification treatment.