Processing apparatus and processing method for industrial park salt-containing wastewater

Abstract

A disclosed processing apparatus for salt-containing wastewater comprises a regulating tank, a softening sedimentation tank, a reagent storage box, a multimedium filter, an ultrafiltration apparatus, a first-segment roll-type reverse osmosis system, a second-segment roll-type reverse osmosis system, an ion exchange apparatus, a roll-type nanofiltration membrane apparatus, a high-pressure reverse osmosis membrane system and an efficient evaporator. According to the apparatus, the anti-pollution capability is strong, the obstruction problem is solved, the concentration multiple is high, the reusable efficiency is high, the processing efficiency is high, the automation degree is high, the investment is saved, and the operation cost is low.

Description

technical field [0001] The invention relates to a treatment device and method for saline wastewater in an industrial park, belonging to the field of water treatment in environmental protection. Background technique [0002] At present, there are basically two options for the treatment of salty wastewater in chemical industry parks: traditional process and improved process. [0003] Traditional process: adopt traditional multi-media filter + ultrafiltration + two-stage roll reverse osmosis + evaporation pond process. In some projects, a roll-type reverse osmosis membrane system is actually used. With this traditional process, the system recovery rate is within 80%, and a large area of ​​evaporation pond is required to produce concentrated water. [0004] Disadvantages: large investment, large land occupation, high operating costs, and large negative impact on the environment; [0005] Improved process: It is an advanced process that has just emerged in China. It is based o...

AI Technical Summary

Problems solved by technology

[0004] Disadvantages: large investment, large land occupation, high operating costs, and large negative impact on the environment;

[0007] Disadvantages: Compared with traditional technology, it saves investment, but is still larger, occupies less land but is still larger, and has higher operating costs. The negative impact on the environment is slightly reduced, but there is no essential difference

Images