Reverse osmosis system applied to industrial concentrated salt sewage

Abstract

The invention discloses a reverse osmosis system applied to industrial concentrated salt sewage. The reverse osmosis system comprises a tank, wherein two horizontal partition boards are oppositely arranged in the tank and divide the tank into a raw water chamber, a primary reverse osmosis chamber and a secondary reverse osmosis chamber, the raw water chamber, the primary reverse osmosis chamber and the secondary reverse osmosis chamber are communicated through pipelines, and at least one reverse osmosis device is arranged in the primary reverse osmosis chamber. Compared with the prior art, multiple reverse osmosis devices work simultaneously, the production efficiency is improved, middle water tanks and supercharging equipment are reduced, and the cost and energy consumption are reduced; the reverse osmosis devices drive a liquid in a liquid accommodating zone through ultrasonic vibration devices and aeration devices to clean reverse osmosis membranes, blockage of the reverse osmosis devices is prevented, purified water yield is increased, and energy consumption required by operation is reduced; the reverse osmosis membranes can effectively prevent charged ions from passing throughbut allow electroneutral water molecules to pass through freely, the flux of the composite membranes is substantially increased while the salt interception rate is basically kept unchanged, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a reverse osmosis system applied to industrial concentrated salt sewage. Background technique [0002] Chemical, printing and dyeing, medicine, food and many other industrial productions will produce a large amount of high-salt wastewater, and the discharge of such wastewater will cause serious pollution to the environment. Therefore, how to deal with high-salt wastewater has become a hot research topic. Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution. Because it is opposite to the direction of natural infiltration, it is called reverse osmosis. According to the different osmotic pressures of various materials, a reverse osmosis pressure greater than the osmotic pressure, that is, the reverse osmosis method, can be used to achieve the purp...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a reverse osmosis system applied to industrial concentrated salt sewage, which solves the problem of high investment cost, high energy consumption and large floor area of ​​the existing reverse osmosis treatment system; the reverse osmosis device is easy to block, High maintenance costs, high operating energy consumption, low hydrothermal stability of organic membranes, low salt rejection and flux, low water flux of inorganic membranes, complex preparation process, etc.

Images