PBAT生产废水处理工艺研究

Study on Wastewater Treatment Process of PBAT Production

文章采用耐毒耐盐好氧-厌氧-A/O工艺处理PBAT废水,24 h对COD_(cr)及挥发酚的去除率为96.92%和99.27%,48 h对COD_(cr)及挥发酚的去除率为98.56%和99.94%。研究表明,该工艺对PBAT生产废水处理效果良好、处理效率高,原水可简单去除悬浮物、沉淀物之后直接进入生化系统,可以取代芬顿等预处理工艺处理高浓度有毒有害废水,具有良好的经济效益和环境效益。

The PBAT wastewater was treated with a toxic-tolerant and salt-tolerant aerobic-ABR-A/O process.The removal rates of COD_(cr) and volatile phenol were 96.92% and 99.27% in 24 h,98.56% and 99.94% in 48 h respectively.Researches show that this process has good treatment effect on PBAT wastewater and high treatment efficiency.Raw water can simply remove suspended solids and sediment and then directly enter the biochemical system,replacing Fenton and other pretreatment processes for high concentration of toxic and harmful wastewater,which has good economic and environmental benefits.