Gas hydrate method sewage treatment system

Inactive Publication Date: 2015-05-06
DALIAN UNIV OF TECH
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  • Description
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Problems solved by technology

[0004] The invention provides a gas hydrate sewage treatment system with low energy consumption, simple and compact equipment, easy implementation and feasibility through the physical properties of gas hydrate and sewage, and simultaneously removes organic pollutants and organic pollutants in sewage, solving the problem of The problem of poor universality of traditional sewage treatment methods

Method used

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  • Gas hydrate method sewage treatment system

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Embodiment Construction

[0012] As shown in the attached figure, the system employs a two-stage treatment facility using gas hydrants for sewage treatment. Connect according to the device structure described above, and use the system for gas hydrate sewage treatment, the steps are as follows:

[0013] In the first step, the sewage in the sewage tank 1 and the gas in the gas cylinder 2 are injected into the primary reactor 12 according to a certain ratio, and a certain amount of hydrate accelerator is added at the same time, and the temperature sensor 7 and the pressure sensor 8 detect that the gas enters the primary reactor. 12 of the sewage temperature and gas pressure.

[0014] In the second step, open the high and low temperature thermostat box 17, set the reaction temperature and stirring rate, keep the pressure in the kettle constant through the booster pump 4, judge the amount and rate of hydrate formation through the temperature sensor 9 and the pressure sensor 10, and pass through the sampling...

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Abstract

The invention relates to a gas hydrate method sewage treatment system belonging to the field of environmental science and engineering. The gas hydrate method sewage treatment system comprises two levels of treatment facilities and comprises a first-level treatment water mixture-sewage transportation unit, a first-level treatment hydrate generation decomposing unit, a secondary-level treatment water mixture-sewage transportation unit and a secondary-level hydrate generation decomposing unit. Hydrate decomposition water after first-level treatment is used as a raw material of secondary-level treatment, and pollutant removal efficiency is improved through two-level treatment. The gas hydrate method sewage treatment system is suitable for large-scale treatment of domestic wastewater and industrial wastewater, inorganic pollutant and organic pollutant can be effectively removed simultaneously, operating cost is reduced due to cyclic utilization of water mixture, heat and mass transfer of hydrate generation process is strengthened due to arrangement of a spray device and a stirrer, and the hydrate growth velocity is increased. The system and the method are reasonable and compact in structure, industrial production requirement is met, operation process is stable and reliable, cost is low, energy is saved and environment is protected.

Description

technical field [0001] The invention belongs to the field of environmental science and engineering, more specifically to the field of sewage treatment, and relates to a gas hydrate sewage treatment system. Background technique [0002] Since hydrate resources are considered to be the most promising energy source in the 21st century, the research on hydrate and its application have aroused great interest of scientists, and have been used in natural gas transportation, gas mixture separation, hydrate energy storage, seawater desalination and Initial attempts have been made in fields such as biomedicine; at the same time, with the rapid economic and social development and the acceleration of industrialization, a large amount of industrial wastewater such as chemical industry and brewing, domestic sewage, and breeding wastewater have been discharged. In recent years, the state has invested a lot of money to encourage scientists. The research and treatment of water pollution has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 赵佳飞董宏生宋永臣杨明军刘卫国刘瑜王大勇张毅李洋辉
Owner DALIAN UNIV OF TECH
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