High-salt-content organic wastewater treating device
A technology for organic wastewater treatment and high salt content, applied in water/sewage treatment, multi-stage water/sewage treatment, biological water/sewage treatment, etc., can solve problems such as low treatment efficiency, high cost of water treatment, complex process flow, etc. , to achieve the effect of stable operation, low cost and simple process
Inactive Publication Date: 2009-11-11
北京中联动力技术有限责任公司
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Problems solved by technology
[0006] Complex process flow, low treatment efficiency, unstable system operation, and high water treatment costs
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[0016] The preferred specific embodiment of the high-salinity organic wastewater treatment device of the present invention includes an electroflocculation unit and a membrane biological treatment unit. Perform membrane separation and biological treatment.
[0017] The electro-flocculation unit includes a flocculation tank, a flocculation area is arranged in the flocculation tank, and the positive and negative electrode plates are placed in parallel to each other in the flocculation area; the lower part of the flocculation tank is provided with a sedimentation area; the upper part of the flocculation tank is provided with a slag scraper.
[0018] The material of 70% to 100% of the number of electrode plates can be one or both of iron and aluminum.
[0019] The material of the electrode plate in the number of 0% to 30% can be titanium, and the surface of the titanium is plated with one or two materials of ruthenium and tantalum.
[0020] An ultrasonic scale inhibitor can be ins...
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Abstract
The invention discloses a high-salt-content organic wastewater treating device comprising an electric flocculation unit and a membrane biological treatment unit. The electric flocculation unit comprises a flocculation groove in which an anode plate and a cathode plate which are parallel to each other are arranged. The lower part of the flocculation groove is provided with a precipitation area, and the upper part of the flocculation groove is provided with a slag scraper. An ultrasonic scale inhibitor is arranged in the flocculation groove. The membrane biological treatment unit comprises a two-stage membrane bioreactor which comprises an immersion-type micro-filtration membrane component with aperture of 0.1-0.4 micron. Wastewater firstly undergoes electric flocculation treatment in the electric flocculation unit and then membrane separation and biological treatment in the membrane biological treatment unit. The process and the apparatuses in use are simple, the treatment effect is stable, the quality of the effluent is good, and the operation cost of the device is low.
Description
technical field [0001] The invention relates to a wastewater treatment device, in particular to a high-salinity organic wastewater treatment device. Background technique [0002] High-salt organic wastewater refers to wastewater containing organic matter and at least the mass fraction of total dissolved solid TDS (Total Dissolved Solid) ≥ 3.5%, including high-salt domestic wastewater and high-salt industrial wastewater. It mainly comes from industrial production, domestic water and food processing plants, chemical plants, and oil and natural gas collection and processing that directly utilize seawater. The organic matter of high-salt organic wastewater varies greatly in the types and chemical properties of organic matter according to different production processes, but most of the salts contained are Cl - , SO 4 2- , Na + , Ca 2+ and other salts. If this kind of wastewater is directly discharged without treatment, it will cause great harm to aquatic organisms, domestic...
Claims
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IPC IPC(8): C02F9/14C02F1/463C02F1/44C02F3/34
Inventor 毛文斌韦兰春套格图
Owner 北京中联动力技术有限责任公司