A high-efficiency removal system and method for high-concentration mercury in gas field water
A high-concentration, gas field water technology, used in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as pollution, and achieve the effects of avoiding pollution, reducing land occupation, and facilitating management
Active Publication Date: 2022-03-11
CHINA PETROLEUM ENG & CONSTR +2
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Problems solved by technology
[0003] In order to overcome the shortcomings of the prior art, the present invention provides a high-efficiency removal system and method for high-concentration mercury in gas field water, which achieves low investment, small footprint, stable water quality, easy management and operation, and can fully realize automatic control. Thoroughly solve the problem of high concentration mercury pollution in gas field water
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[0013] A high-efficiency removal system for high-concentration mercury in gas field water, such as figure 1 As shown, it includes: regulating water tank 1, first lifting pump 2, PLC control system 3, electric valve 4, regeneration water tank 5, monitoring water tank 6, gas purification device 7, airtight combined air flotation device 8, integrated high concentration Mercury-containing sewage treatment device 9, second lift pump 10, primary adsorption mercury removal tower 11, secondary adsorption mercury removal tower 12 and on-line instruments, 13 to 23 in the figure are pipelines, wherein:
[0014] The sewage with high mercury content in the gas field is connected to the regulating water tank 1 through the pipeline 13, and the regulating water tank 1 is connected to the first lifting pump 2 through the pipeline 14, and the first lifting pump 2 is connected to the airtight combination air flotation device 8 through the pipeline 14, and the airtight combination air The flotati...
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The invention discloses a system and method for highly efficient removal of high-concentration mercury from gas field water. A mercury tower and a monitoring water tank, the two-stage adsorption demercuration tower is connected to a regenerated water tank, and the regenerated water tank is connected to an integrated high-concentration mercury-containing sewage treatment device. The invention adopts high-efficiency mercury scavenger and auxiliary agent to remove mercury, which can effectively remove various forms of mercury and ensure that the effluent is stable and up to standard; Pollution by organic substances, the saturated adsorption capacity is large, and it can be recycled online; Fourth, the overflow of the monitoring water tank is used to enter the regulating water tank. Stable compliance.
Description
technical field [0001] The invention relates to a process for treating high-concentration mercury-containing sewage in gas field water, in particular to a system and method for efficiently removing high-concentration mercury from gas field water for the treatment of high-mercury gas field sewage. Background technique [0002] At present, the main processes for removing high-concentration mercury from gas field water include sulfide reaction + flocculation precipitation + activated carbon adsorption. At present, the mercury removal treatment process of gas field water is mainly coagulation sedimentation + activated carbon adsorption. Since the concentration of chloride ions in gas field water is above 1000mg / L, mercury ions and chloride ions in the water form a stable dissolved complex, which is not Charged and dissolved in water, it is difficult to be adsorbed. Therefore, the existing process has a very low removal rate for organic mercury and incomplete removal of soluble m...
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IPC IPC(8): C02F9/04C02F101/20
CPCC02F9/00C02F2101/20C02F1/28C02F1/24C02F1/5281
Inventor 赵琼陈彰兵李璐杨洋张永红汤林班兴安周文龙万英东魏西尧李森何化尚凯曹亮肖芳
Owner CHINA PETROLEUM ENG & CONSTR