Magnetic flocculation enhanced membrane integration device for oil sand tailing wastewater and treatment method for oil sand tailing wastewater
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A wastewater treatment and integrated device technology, applied in water/sewage treatment, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problem of high coagulant dosage, solve a large number of water pollution problems, realize Sewage reuse and wide application range
Inactive Publication Date: 2018-05-29
黑龙江华美亿丰环境工程有限公司
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[0006] The present invention aims to solve the problem that the coagulant dosage is too high when pretreating oil sand tailings wastewater in the existing sewage treatment m
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specific Embodiment approach 1
[0044] Specific implementation mode one: combine figure 1 This embodiment is described. The magnetic flocculation enhanced membrane integration device used in the treatment of oil sand tailings wastewater in this embodiment includes a raw water pump 1, a static pipeline mixer 3, a coagulant medicine box 4, a coagulation dosing pump 5, and a flocculation tank 6. Coagulation aid kit 7, coagulation aid dosing pump 8, sedimentation tank 9, sludge return pump 10, sludge booster pump 11, sludge dehydration device 12, magnetic powder recovery device 13, sludge transport device 14 , Magnetic powder dosing box 15, magnetic powder dosing pump 16, filter tank 17, ultrafiltration booster pump 18, ultrafiltration membrane device 20, cleaning pump 23, cleaning agent medicine box 24, ultrafiltration water production tank 25, nanofiltration booster Pump 26, nanofiltration membrane device 28, waste water tank 30, nanofiltration water production tank 31, nanofiltration dosing pump 33 and scale ...
specific Embodiment approach 2
[0049] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the water quality characteristics of the oil sand tailings wastewater are: pH=6.4-8.3, turbidity=165.4-220.7NTU, TOC=42.3-63.5mg / L , COD=195.7-278.8mg / L, naphthenic acid=17.9-28.5mg / L, conductivity=2956.2-3988.5μS / cm. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0050] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that: the coagulant used in the coagulant medicine box 4 is a metal salt coagulant, specifically polyaluminum chloride, polysulfuric acid One or more of iron, ferric chloride, ferrous sulfate, polyaluminum ferric chloride, and aluminum sulfate in any proportion. Others are the same as in the first or second embodiment.
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Abstract
The invention discloses a magnetic flocculation enhanced membrane integration device for oil sand tailing wastewater and a treatment method for the oil sand tailing wastewater and relates to a devicefor treating the oil sand tailing wastewater and a wastewater treatment method. The invention aims to solve the problem of over-high dosage of a coagulant during pretreatment of the oil sand tailing wastewater in an existing sewage treatment method. The device comprises a static pipeline mixer, a flocculating tank, a setting pond, a sludge dewatering device, a magnetic powder recovering device, asludge outward transporting device, a filter tank, an ultrafiltration membrane device, an ultrafiltration water producing tank, a nanofiltration membrane device, a wastewater tank, a nanofiltration water producing tank and a scale inhibitor medicine tank; the static pipeline mixer is connected with the flocculating tank; the flocculating tank is connected with the setting pond; the setting pond isconnected with the filter tank. The method comprises the following steps: a water inlet valve is opened, and a raw water pump is started; raw water is mixed with a coagulant in the static pipeline mixer, and a mixture flows into the filter tank through the flocculating tank and the setting pond; the mixture enters an ultrafiltration membrane, ultrafiltration produced water enters the nanofiltration membrane device, and nanofiltration produced water enters the nanofiltration water producing tank. The magnetic flocculation enhanced membrane integration device disclosed by the invention is usedfor treating the oil sand tailing wastewater.
Description
technical field [0001] The invention relates to a device and a wastewater treatment method for oil sand tailings wastewater treatment. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. Asphalt is mainly divided into three types: coal tar pitch, petroleum pitch and natural asphalt. Among them, natural asphalt is stored underground, and some form ore beds. Or accumulate on the surface of the earth's crust. Asphalt can be widely used in coatings, plastics, rubber and other industries, as well as road paving, etc. With the increasing economic development and the expansion of industrial demand, asphalt extraction from natural ores has also become an important means of obtaining asphalt resources. Industrial production usually through The hot water extraction method extracts the bitumen in the oil ore. Generally speaking, the hot water extraction method produces 1m 3 ...
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