A method and device for advanced treatment of gas hydrate seawater

A technology of gas hydrate and seawater depth, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, general water supply saving, etc., to simplify the process, save industrial costs, and achieve the effect of reuse

Active Publication Date: 2016-05-04
邳州市博睿投资管理有限公司
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Problems solved by technology

[0004] In view of the above-mentioned deficiencies, the present invention effectively solves the problem that disinfection and boron removal treatment are still required after conventional reverse osmosis seawater desalination, fully utilizes the high pressure of the produced water in the reverse osmosis process to react with chlorine gas to form hydrates, and realizes the depth of seawater treatment to meet national drinking water standards

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  • A method and device for advanced treatment of gas hydrate seawater
  • A method and device for advanced treatment of gas hydrate seawater

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Embodiment Construction

[0026] The implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] according to figure 2 As shown, the device of the present invention is composed of 9, heat exchanger 10, heat exchanger 11, cut-off check valve 12, centrifugal pump 13, cooler 14, thermometer 15, reaction tower 16, hydrate separator 17, hydrate decomposition Device 18, gas storage tank 19, chlorine gas tank 20, compressor constitute.

[0028] Such as figure 1 The seawater a enters the seawater desalination system under the action of the water intake pump 1, and before passing through the mechanical filter 2, a flocculant e is added to the pipeline to coagulate the impurities and colloids in the seawater, and then the mechanical filter 2 removes the colloidal impurities in the seawater, Make SDI≤5 to meet the requirements of pretreatment. Antiscalant f is added to the pretreated seawater to prevent smaller impurities in the water from sc...

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Abstract

The invention belongs to the technical field of reverse osmosis water desalination and in particular relates to a method and a device for deeply treating seawater by a gas hydrate process. The method comprises the following steps: performing reverse osmosis desalination on the seawater; then, re-desalinating the seawater subjected to the reverse osmosis desalination by the chlorine gas hydrate process, and disinfecting. According to the method, the seawater subjected to primary desalination is continuously subjected to chlorine gas hydrate generation, separation and decomposition processes in an absolutely airtight chlorine gas circulation system, and the processes of boron removal secondary desalination and disinfection of the seawater are simultaneously conducted under the conditions that the temperature range is relatively wide and the pressure of the seawater treated in the previous process is relatively low; the industrial cost is reduced while the seawater treatment efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of reverse osmosis water desalination. In particular, it relates to a method and a device for desalination and boron removal and disinfection of seawater by using gas hydrate. Background technique [0002] Water is an important material essential for the survival of life on earth, and an irreplaceable natural resource for human beings to carry out daily life and carry out industrial production. However, fresh water resources only account for 2% of all water resources, and 87% of them are frozen in ice sheets and glaciers at the poles and high mountains, making it difficult to develop and utilize them. With the rapid development of industrial economy and the increasing environmental pollution, the scarcity of fresh water resources has become a worldwide problem. According to statistics, my country's per capita water resources are less than 1 / 4 of the world's per capita fresh water resources. At present, 300...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
CPCY02A20/131
Inventor 王树立梁艳孙圣杰饶永超刘墨夫康甜甜
Owner 邳州市博睿投资管理有限公司
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