Chloroacetaldehyde is a typical refractory toxic petrochemical wastewater to environment, whereas conventional treatment strategies in the wastewater treatment plants are inapplicable to transforming it into nontoxic forms. Therefore, we explored zero valent iron enhanced hydrolytic acidification solution to tackle this problem. Experimental results indicated that zero valent iron enhanced hydrolytic acidification technology possessed the capability to chloroacetaldehyde detoxication, 20.23% and 19.32% increasing dechlorination ratio achieved at initial CAE concentration of 50 and 100 mg/L with 5 g/L ZVI at 48 h. Moreover, ZVI reduced cell death resulted from 0.31, to 1.59 DNA/g VSS reduced at aforementioned parameters. Also, ZVI did not significantly affect predominant butyric acid-type fermentation, but it facilitated the total volatile fatty acids more 43.10, 26.06 and 25.39 mg COD/g VSS produced at 50 and 100 mg/L with at 48 h, particularly, it enhanced the yields of short-chain fatty acid Ac which can be directly used by microbes.

氯乙醛是一种典型的对环境难降解的有毒石油化工废水，而废水处理厂中的常规处理策略不适用于将其转化为无毒形式。因此，我们探索了零价铁增强水解酸化溶液来解决该问题。实验结果表明，零价铁强化水解酸化技术具有氯乙醛脱毒的能力，当初始CAE浓度为50和100 mg / L，ZVI为5 g / L时，在48 h时，脱氯率提高了20.23％和19.32％。此外，在上述参数下，ZVI将细胞死亡从0.31 DNA / g VSS降低至1.59 DNA / g VSS。此外，ZVI并未显着影响丁酸型发酵的优势，