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Wastewater zero discharge system of Na-ion exchanger and wastewater treatment process

A sodium ion exchanger and waste water treatment technology, applied in the direction of ion exchange water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the waste of regeneration agent and flushing water, increase municipal management Network processing capacity and other issues to achieve the effect of improving utilization, reducing operating costs, and reasonable structural design

Active Publication Date: 2013-07-24
YANTAI JIETONG WATER TREATMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the treatment method for the wastewater generated by the sodium ion exchanger is mainly to collect the regenerated wastewater and discharge it into the municipal sewage pipe network, which increases the treatment capacity of the municipal pipe network and wastes a large amount of regeneration agent and flushing water.

Method used

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  • Wastewater zero discharge system of Na-ion exchanger and wastewater treatment process

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Embodiment 1

[0025] The sodium ion exchanger waste water zero discharge system of this embodiment includes a water quality water separator for separating waste water with a salt content > 35000 mg / L from waste water with a salt content ≤ 35000 mg / L, and the input of the water quality water separator The output end of the water quality water separator is connected to the output end of the sodium ion exchanger 1, the low salt water output end of the water quality water separator is connected to the first mechanical filter 3 for removing impurities, the first mechanical filter 3 is connected to the raw water pool 4, and the water quality water separator The output end of the high brine is sequentially connected to the second mechanical filter 5 for removing impurities, the reactor 6 for removing calcium ions and magnesium ions in the wastewater, and the solid-liquid separator 8, which is connected to the salt-dissolving pool 9, The output ends of the raw water pool 4 and the salt-dissolving po...

Embodiment 2

[0037] The difference between the waste water treatment process of the sodium ion exchanger waste water zero discharge system of this embodiment and embodiment 1 is:

[0038] Step 2), removing calcium ions and magnesium ions. In order to speed up the precipitation of calcium ions and magnesium ions, a flocculant is added to the reactor 6, and the flocculant is carboxymethyl cellulose.

[0039] The sodium ion exchanger waste water zero discharge system and waste water treatment process of the present invention have simple and convenient process flow, reasonable system structure design, and the cooperation of various components in the system can reuse the waste water discharged from the sodium ion exchanger and extract waste water The salt in it reduces the operating cost of the equipment and improves the utilization rate of resources.

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Abstract

The invention relates to a wastewater zero discharge system of a Na-ion exchanger and a wastewater treatment process, and belongs to the technical field of wastewater treatment. The wastewater zero discharge system comprises a water quality separator for separating the wastewater with salinity larger than 35000mg / L from the wastewater with salinity smaller than or equal to 35000mg / L, wherein an input end of the water quality separator is communicated with an output end of the Na-ion exchanger; a low saltinity water output end of the water quality separator is communicated with a first mechanical filter for removing impurities; the first mechanical filter is communicated with a raw water tank; a high salinity water output end of the water quality separator is sequentially communicated witha second mechanical filter for removing impurities, a reactor for removing calcium ion and magnesium ion from the wastewater and a solid-liquid separator; the solid-liquid separator is communicated with a salt dissolving tank; and output ends of the raw water tank and the salt dissolving tank are communicated with an input end of the Na-ion exchanger. The wastewater zero discharge system has reasonable structural design and simple procedures and can effectively and completely recycle the wastewater discharged by the Na-ion exchanger.

Description

technical field [0001] The invention relates to a sodium ion exchanger waste water zero discharge system and a waste water treatment process, belonging to the technical field of waste water treatment. Background technique [0002] In recent years, a large number of wet steam generators have been invested in oilfields for heavy production. In order to ensure the normal operation of wet steam generators, a large amount of demineralized water is needed to meet the equipment requirements. Currently, demineralized water is mainly produced through sodium ion exchangers. Its regeneration requires a large amount of regenerant salt and flushing water, and the utilization rate of the incoming water is about 70%-80%. According to the national industrial policy, the equipment must gradually achieve zero discharge of waste water. [0003] The current treatment method for the wastewater generated by the sodium ion exchanger is mainly to collect the regenerated wastewater and discharge it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F1/42C02F1/56
Inventor 文凤余王莉刘威邹文祥李美荣王秋香宫伟党刘永生杨磊方丽
Owner YANTAI JIETONG WATER TREATMENT TECH