High-salt high-organic matter wastewater thermal membrane coupling zero-emission treatment process
A technology of thermal film coupling and treatment process, which is applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., which can solve the problems of high energy consumption, complex operation, and large floor space. problems, to achieve the effect of easy and safe disposal, high heat utilization rate, and less occupied area
Active Publication Date: 2018-02-02
BEIJING JINDAYU ENVIRONMENT TECH CO LTD
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Problems solved by technology
The existing zero-emission treatment process has disadvantages such as lengthy process, complicated operation, poor stability, high consumption of energy and chemicals, large floor area, high operating cost, and difficulty in disposing of solid salt due to high organic content, making it difficult to operate stably for a long time, and the scope of application is limited. restrict
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[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] Such as figure 1 A high-salt, high-organic-matter wastewater thermal film coupled zero-discharge treatment process shown includes the following process flow: the high-salt, high-organic-matter wastewater 41 passes through the high-salt, high-organic-matter wastewater inlet pipeline sequentially through the first heat exchanger 1 and After the second heat exchanger 2 is heated, enter the brine membrane separator 3 through the water inlet of the brine membrane separator 3, spray on the surface of the hydrophobic membrane, and under the effect of the water vapor pres...
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The invention discloses a high-salt high-organic matter wastewater thermal membrane coupling zero-emission treatment process which comprises the following process procedures: feeding wastewater to betreated through a first heat exchanger and a second heat exchanger in sequence, and further feeding into a saline water membrane separator; conveying steam into a main steam tube; heating concentratedwater in a heating pipeline in a mixed salt harmless treater, and further conveying to a crystallizer; conveying generated steam to a main steam tube; conveying generated crystal salt to the mixed salt harmless treater, performing incineration, and conveying incinerated mixed salt to a mixed salt recycling device; feeding high-temperature fume through the second heat exchanger, and conveying cooled fume to a low-temperature fume recycling system. By adopting the process, waste heat of high-salt high-organic matter wastewater is sufficiently utilized; as only four main process units, namely the saline water membrane separator, the crystallizer and the mixed salt harmless treater, are provided, the process is concise in procedure, simple and convenient to operate, free of chemical agent, high in heat utilization rate, small in space and low in operation cost, and solid salts are free of organic matter and are convenient to treat.
Description
technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a thermal film coupling zero-discharge treatment process for high-salt and high-organic waste water. Background technique [0002] The waste water discharged in the production process of petrochemical, coal chemical, metallurgy, pharmaceutical, printing and dyeing, papermaking and other industries has the characteristics of high salt and high organic matter. Usually, the salt content is above 3000mg / L, the COD is above 2000mg / L, and the temperature Higher, containing a large amount of toxic and harmful organic substances such as aromatic compounds, heterocyclic compounds, hydrocarbon compounds, etc., even if they are discharged into water bodies after treatment, they will still cause safety hazards to the water environment. Therefore, many local governments require such enterprises to achieve zero liquid discharge, referred to as zero discharge. [0003] At prese...
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Patent Timeline
Login to View More IPC IPC(8): C02F9/10F23G7/00F23G5/46C02F101/30
CPCC02F1/001C02F1/16C02F1/447C02F9/00C02F2101/30C02F2303/10C02F2303/14F23G5/46F23G7/00
Inventor 曹文彬曹真曹普晅尹胜奎
Owner BEIJING JINDAYU ENVIRONMENT TECH CO LTD