Advanced treatment of paper mill wastewater by catalytic vacuum distillation

作者：Li, Ni; Ma, Hongzhu^*; Wang, Bo

来源：Desalination and Water Treatment, 2010, 16(1-3): 298-303.

DOI：10.5004/dwt.2010.1101

• Vacuum distillation
• Advanced treatment
• Paper mill wastewater

A new economical, environmentally friendly wastewater treatment method, catalytic vacuum distillation (CVD) advanced wastewater treatment, is introduced in this paper. The CVD degradation of pulp and paper mill wastewater assisted by some promoters, such as sodium hydrate, ferric chloride and kaolin was investigated. The results show that the initial pH plays an important role on the chemical oxygen demand (COD) reduction and color removal. Kaolin can improve slightly the effect of treatment by vacuum distillation. Moreover, no distinct improvement effect was observed when ferric chloride was introduced into the catalytic vacuum distillation system. The results show that the quality of some effluents can reach the standard of discharged wastewater. In addition, manifested by the effects of this method, the vacuum distillation is a promising technique for wastewater treatment.

• 出版日期2010-4
• 单位陕西师范大学