Coal bed gas produced water deep treatment equipment

Abstract

The invention discloses coal bed gas produced water deep treatment equipment which comprises a raw water tank; the raw water tank is communicated with a solar heat collector through a raw water pump; the water outlet of the solar heat collector is communicated with the raw water side of a hydrophobic membrane component; the outlet of the freshwater side of the hydrophobic membrane component is communicated with an exhaust pipe of a vacuum ejector, and a water production tank is communicated with a water inlet and outlet pipe of the vacuum ejector through a water production pump; and the outlet of the raw water side of the hydrophobic membrane component is communicated with an evaporation tank. The treatment equipment can most recover coal bed gas produced water resource and most reduce the emission of pollutant, solves the difficult problems of coal bed gas field explored domestic water supply and environment protection, is characterized by advanced and reliable process, high automation degree, light weight, and convenient movement and transportation, greatly reduces the environment pollution so that the water drainage meets the environment protection standards, uses natural and green solar refrigeration, effectively improves the temperature of the solution to be treated, improves the separation efficiency and effect, and simultaneously, saves energy and reduces the cost.

Description

technical field [0001] The invention relates to a water treatment device, in particular to a device applied to advanced treatment of coalbed methane produced water. Background technique [0002] my country is one of the countries with the richest coalbed methane resources in the world. Coalbed methane is increasingly valued for its resource potential, high-quality energy and chemical raw materials, shallow burial, low development cost, and long benefit time. But generally speaking, the development of coalbed methane will bring produced water with high salinity, which needs to be treated and discharged after meeting the standard. The mining of coalbed methane also has a wide distribution of mining areas, and the requirements for environmental protection in various places are becoming more and more stringent. [0003] As a mining enterprise, it is necessary to solve the treatment of the produced water during the mining process and meet the local environmental protection requi...

AI Technical Summary

Problems solved by technology

The main processes of desalination treatment are: reverse osmosis membrane method, electrodialysis membrane method, evaporation pool method and ion exchange method, but these desalination processes have disadvantages

The evaporation pool method requires a large amount of heat source; after the reverse osmosis membrane method and the electrodialysis membrane method are completed, about 1 / 4 of the concentrated water needs to be discharged; the ion exchange method needs to use brine or acid-base regeneration, and the whereabouts of high-concentration regeneration wastewater is also a problem

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