Abstract:

The treatment of highly concentrated resin wastewater in a company has been studied. The COD_Cr of the wastewater is near 150 000 mg/L. Based on the pilot experiments, the wastewater treatment process has been confirmed. Firstly, the physicochemical pretreatment, i.e. degrading the poisonous and harmful materials in the wastewater by two-stage catalytic oxidation and in_Crease the biochemistry capacity of the wastewater. Then, mi_Croelectrolysis technique is used to lower the COD_Cr of the wastewater. At last UASB+A/O are used to further lower the COD_Cr of the wastewater to less than 500 mg/L, which has reached the discharge standard.

Key words: resin wastewater, catalytic oxidation, micro-electrolysis, upflow anaerobic sludge blanket reactor

摘要：

对某公司树脂生产废水的处理进行了试验研究,该废水的COD_Cr接近150000mg/L。经过小试确定了该废水的处理方案。首先采用物化预处理即两级催化氧化法降解废水中的有毒有害物质,提高废水的可生化性,接着用微电解法初步降低废水的COD_Cr,最后用UASB+A/O进一步降低其COD_Cr,使废水COD_Cr小于500mg/L达标排放。

关键词: 树脂废水, 催化氧化, 微电解, 逆流式厌氧活性污泥反应器

CLC Number: 

• X703.1