| abstract |
The invention discloses a disposal method of epoxy resin waste water with high alkalinity, high salt content and high organic content, the steps of which is as follows: (1) neutralization, membrane filtration; (2) membrane distillation; (3) evaporation and concentration; (4) crystallization. The invention solves the problem that the traditional biological treatment method can hardly dispose waste water with high alkalinity and high salt content (under the condition of high salt content and high alkalinity, biological bacterium is hard to survive). The invention has the advantages of advanced technologies, compact equipments, a small floor space and good water quality of effluents. The invention can effectively save energy and operating cost by utilizing afterheat of wastewater and low energy heat source generated during the process. Moreover, the invention can lower operating cost and create economic performances by recovering sodium chloride, byproducts during the process of manufacture. |