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High-concentration brine resource utilization system and method

A high-concentration salt and water resource technology, applied in chemical instruments and methods, water supply devices, water pollutants, etc., can solve the problems of high energy consumption and high treatment costs, and achieve the goal of reducing energy consumption, promoting application, and reducing use costs. Effect

Pending Publication Date: 2022-04-22
HUALU ENG & TECH
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Problems solved by technology

Therefore, the high energy consumption and high treatment cost of the traditional zero-discharge system (membrane concentration + evaporation crystallization) has become one of the most critical limiting factors for enterprises to treat saline wastewater

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  • High-concentration brine resource utilization system and method
  • High-concentration brine resource utilization system and method

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Embodiment Construction

[0033] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solution of the present invention is described in detail below, but it should not be construed as limiting the scope of implementation of the present invention.

[0034] This embodiment provides a high-concentration brine resource utilization system, such as figure 1 As shown, it includes: distributed photovoltaic power generation system 1, membrane pretreatment system 2, multi-stage membrane concentration system 3, deep purification system 4, first nanofiltration salt separation system 5, first electrodialysis concentration system 6, the first A bipolar membrane electrolytic acid-base system 7, a chlorine dioxide generator 8, a second electrodialysis concentration system 9, a freezing crystallization system 10, a second bipolar membrane electrolytic acid-base system 11, and a second nanofiltration salt separation system 12 .

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Abstract

The invention relates to the technical field of high-concentration salt-containing wastewater treatment, and particularly discloses a high-concentration salt water resource utilization system and method, and the electric quantity required by a process device is supplied by a distributed photovoltaic power generation system. The system comprises a distributed photovoltaic power generation system, a membrane pretreatment system, a multistage membrane concentration system, a deep purification system, a nanofiltration salt separation system, an electrodialysis concentration system, a bipolar membrane electrolysis acid-base system, a chlorine dioxide generator and a freezing crystallization system. According to the provided high-concentration brine resource utilization method based on the system, chlorine salt in the high-concentration brine is converted to obtain acid and alkali liquor and a mixed disinfectant, and sulfate is converted to obtain the acid and alkali liquor. On the basis of the distributed photovoltaic power generation technology, salt resources in the salt-containing wastewater are converted into chemicals, meanwhile, the wastewater treatment energy consumption and the agent use cost of enterprises are reduced, application of the photovoltaic power generation technology in the wastewater zero discharge process is promoted, and green and low-carbon development of the energy industry is promoted.

Description

technical field [0001] The invention relates to the technical field of high-concentration salt-containing wastewater treatment, and specifically relates to a system and method for realizing resource utilization of high-concentration brine, especially based on distributed photovoltaic power generation technology, to realize the conversion of salt resources in high-concentration brine into acid The system and method formed by the comprehensive utilization technology of lye and disinfectant. Background technique [0002] The disposal of high-salt wastewater has always been a problem of concern to the world. In my country, saline wastewater accounts for more than 5% of the total wastewater output. At present, the general treatment method for saline wastewater is to produce industrial salt through evaporation and crystallization technology, which is produced by the whole industry every year. The industrial salt reaches more than 10 million tons, and the annual output of industrial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06H02J7/35E03B1/04C02F101/30
CPCC02F9/00H02J7/35E03B1/042C02F1/44C02F2301/08C02F1/442C02F1/46109C02F1/76C02F1/4693C02F2201/009C02F1/441C02F1/66C02F2209/06C02F2101/30C02F1/5281C02F2001/007C02F1/42C02F1/22
Inventor 汪旭张镇王晓敏袁助赵国强骆彩萍
Owner HUALU ENG & TECH
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