Near-zero-emission softening water device and method

A near-zero emission and water softening technology, applied in the direction of ion exchange water/sewage treatment, ion exchange bed cleaning/flushing, etc., can solve the problem of excessive waste water and achieve the effect of reducing regeneration waste water

Inactive Publication Date: 2018-11-30
ZIBO GERUI WATER TREATMENT ENG
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Problems solved by technology

[0004] The invention provides a near-zero discharge softened water equipment and method, which are used to solve the technical problem of more waste water in the process of softening water existing in the prior art

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  • Near-zero-emission softening water device and method

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with accompanying drawing.

[0035] like figure 1 As shown, the present invention provides a near-zero discharge softened water equipment, including a resin tank 1 , a regenerant device 2 and a backwash unit 3 . Wherein, the resin tank 1 is filled with sodium ion exchange resin, and the sodium ion exchange resin absorbs calcium and magnesium ions in the water to soften the water. When preparing softened water, the sodium ion exchange resin is constantly exchanging calcium and magnesium cations, and gradually tends to be saturated. When the resin is saturated, it loses its ability to produce water. At this time, the sodium ion exchange resin needs to be regenerated.

[0036] The regenerant device 2 is connected with the resin tank 1 to regenerate the sodium ion exchange resin in the resin tank 1 . The regenerant device 2 includes a regenerant tank and a regenerant provided in the regenerant tank.

[...

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Abstract

The present invention relates to a near-zero-emission softening water device and method, relates to the field of a water-treatment water saving and emission reducing system, and solves a technical problem of more wastewater exists in a regenerating process of softening water in the prior art. The near-zero-emission softening water device comprises a resin tank, a regenerant device and a backwashing unit; the resin tank is provided with a valve control unit; the valve control unit controls opening and closing states of each valve and can achieve a purpose of automatically controlling flow direction of fluid in the resin tank; in addition, by controlling length of opening and closing time of each valve, purposes of automatic controlling of resin tank regeneration, small washing, water producing, etc. are achieved; thus the resin tank is reduced in production of regenerated wastewater; and near-zero-emission of the softening water is realized.

Description

technical field [0001] The invention relates to the technical field of water treatment water saving and emission reduction systems, in particular to a near-zero emission softened water equipment and method. Background technique [0002] In the soft water preparation process, the sodium ion exchange resin in the sodium bed adsorbs calcium and magnesium ions in the water to achieve the purpose of softening hard water and avoiding carbonate scaling in pipes, containers and boilers. When preparing softened water, the sodium ion exchange resin is constantly exchanging calcium and magnesium cations, and gradually tends to be saturated. When the resin is saturated, it loses its ability to produce water. At this time, the sodium ion exchange resin needs to be regenerated. Regeneration refers to the chemical reaction between sodium chloride brine and sodium ion exchange resin, so that the sodium ion exchange resin can regain its soft water function. [0003] However, the existing re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/42B01J49/60
CPCC02F1/42B01J49/60C02F2001/425
Inventor 慕史臣
Owner ZIBO GERUI WATER TREATMENT ENG
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