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MBR and A2/O based treatment method of waste lithium battery electrolyte and electrolyte waste water

A waste lithium battery and treatment method technology, which is applied in the field of waste lithium battery electrolyte and electrolyte wastewater treatment based on MBR and A2/O, can solve the problems of incomplete treatment and incomplete recycling technology, and increase biochemical Sexuality, the effect of overcoming incompleteness

Inactive Publication Date: 2016-05-04
天津卡特化工技术有限公司
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  • Claims
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Problems solved by technology

[0005] The technical purpose of the present invention is to overcome the deficiencies of the prior art, overcome the incompleteness and incomplete treatment of the existing recycling technology, and provide a treatment method for reclaiming and treating waste lithium battery electrolyte and electrolyte wastewater

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  • MBR and A2/O based treatment method of waste lithium battery electrolyte and electrolyte waste water
  • MBR and A2/O based treatment method of waste lithium battery electrolyte and electrolyte waste water
  • MBR and A2/O based treatment method of waste lithium battery electrolyte and electrolyte waste water

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described below in conjunction with specific embodiments. The treated waste electrolyte is the electrolyte in the waste lithium battery. The treated electrolyte wastewater mainly refers to the waste water generated during the process of cleaning electrodes and other components and recycling metals in the process of dismantling the lithium battery, and the waste lithium battery electrolyte is passed through The exhaust gas generated after the treatment in step 1 is passed into the electrolyte wastewater for absorption, so as to be removed during the wastewater treatment process, and at the same time, after the remaining part of the electrolyte treated in step 1 is mixed with the electrolyte wastewater, the second unit is used together for electrolyte Wastewater treatment, waste water often contains high COD, metal ions and refractory organic matter.

[0029] as attached figure 1 As shown in the process flo...

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Abstract

The invention discloses MBR and A2 / O based treatment method of waste lithium battery electrolyte and electrolyte waste water. Three treatment units are adopted for treatment. The treatment method comprises the steps of firstly treating waste electrolyte, then carrying out absorption by introducing a waste gas generated in the reaction of the electrolyte into waste water, so to remove the waste gas in a waste water treatment process, adopting Fenton oxidation to treat lithium battery waste water, so as to increase the biodegradability of the waste water, removing reaction sediment by sediment flocculation, using an A2 / O and MBR membrane separation and combination process to treat waste electrolyte , finally enabling effluent to pass through an RO (reverse osmosis) unit to ensure the effluent quality, and as for the concentrated water generated by RO, adopting a powdered activated carbon adsorption-ultrafiltration combined technology to remove organic pollutants in the concentrated water, so as to enable the treated water to reach the requirement of high-quality reuse water of RO. The treatment method overcomes the imperfection of a technic of recycling and treating a waste lithium battery in the past, and realizes reduction, harmlessness, reclamation of waste electrolyte waste water treatment.

Description

[0001] The application of the present invention is a divisional application of the parent application "a method for recycling and treating waste lithium battery electrolyte and electrolyte wastewater". The application number of the parent application is 2013105625669, and the application date of the parent application is November 2013 12th. technical field [0002] The invention relates to various processes of recycling and harmless treatment of lithium battery electrolyte and electrolyte wastewater, and more specifically relates to a treatment method for recycling and treating waste lithium battery electrolyte and electrolyte wastewater. Background technique [0003] Since the commercialization of lithium batteries around 1990, due to the advantages of small size, light weight, fast charging speed, wide temperature range and long cycle life, they are widely used in cameras, mobile phones, notebook computers, portable measuring instruments, etc. , it is also the preferred hi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/444C02F1/5245C02F1/722C02F3/1268C02F3/30C02F9/00C02F2103/34C02F2301/08
Inventor 毛国柱侯长胜霍爱群于涛胡文丽
Owner 天津卡特化工技术有限公司
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