Recycled water recycling equipment and process

Abstract

The invention discloses recycled water recycling equipment and a recycled water recycling process. The recycled water recycling equipment comprises a raw water tank, a raw water pump, a pretreatment system, a high-pressure pump and a reverse osmosis membrane component which are connected with one another sequentially through a water inlet pipeline, wherein a dialyzate outlet of the reverse osmosis membrane component is connected with a water generating tank through a water generating pipeline. The recycled water recycling equipment is characterized in that: a concentrated liquid outlet of the reverse osmosis membrane component is connected with a valve and a circulating pump through a concentrated pipeline and then is connected with a pipeline behind the high-pressure pump; the concentrated liquid outlet of the reverse osmosis membrane component is connected with a valve and a three-dimensional electric catalyst system through a pipeline; one outlet of the three-dimensional electric catalyst system is connected with a delivery pump through a backflow pipeline and then is connected with a raw material tank; and the other outlet of the three-dimensional electric catalyst system is connected with a drainage pipeline. The equipment and the process have the two-level circulation characteristic and have the advantages that: the recovery ratio is high; pollution is resisted; concentrated water can be directly drained after being treated, and the like; the whole process is used for treating recycled water; and the water recovery ratio is over 90 percent.

Description

technical field [0001] The invention relates to the field of industrial wastewater and domestic sewage treatment, in particular to reclaimed water reuse equipment and a reuse process. Background technique [0002] As a polymer chemical material, the separation membrane not only has the functions of separation, concentration, purification and desalination, but also has the advantages of high efficiency, energy saving, environmental protection and molecular level filtration. It is widely used in sewage reuse treatment, seawater desalination, brackish water Desalination, ultra-pure water and other industries, membrane technology is recognized as one of the most important new technologies in the 21st century. [0003] At present, the global membrane module complete set of equipment and membrane engineering market has reached tens of billions of dollars, and is increasing at an annual rate of 20%. my country's film market demand in 2005 has reached 10 billion yuan. [0004] Wit...

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Problems solved by technology

[0005] 1) The recovery rate of membrane separation technology is low, and the membrane fouling is serious: how to improve the separation efficiency and recovery rate of the membrane, improve the anti-pollution ability of the membrane, and save energy consumption have plagued membrane equipment suppliers and users;

[0006] 2) Membrane separation technology belongs to physical separation technology. Membrane system produces a large amount of concentrated water with high concentration and high concentration of pollutants, so it cannot be discharged directly. Concentrated water is waste water that has been treated by physicochemical and biochemical treatment and then concentrated by membrane system, and its biochemical properties are poor. , the traditional method is difficult to handle

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