Regarding the treatment of oily wastewater in the No. 3 Oilfield
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With the application of tertiary oil recovery technology, the polymer content in sewage separated from oilfield production fluids continues to increase. The traditional sewage treatment process mainly uses walnut shell filters, quartz sand filters, etc. When using traditional processes to treat polymer-containing sewage, the screen tubes are often blocked. Do you have a better process?
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What is a ceramic membrane filter? Can the person upstairs explain it in detail? Let us also learn.* study *
Sewage containing polymers and oil is extremely easy to form filter cake clogging on the membrane surface, and the usual surface filtration effect is not good.
As far as I know, membranes are mainly used for microfiltration and ultrafiltration. Can this membrane be used for coarse filtration? Water quality: Oil content: 100 mg/L Suspended solids: 100 mg/L Polymer content: 180 mg/L Effluent water quality: Oil content 8mg/L Suspended solids 3mg/L Median particle size 2
CAF air flotation can be used to separate oil and water, and then adjust the tank, then add acid or alkali to adjust the pH value, and perform secondary sedimentation. If the water is reused, a quicksand filter can be added.
Can you explain in detail why the pH value in the conditioning pool needs to be adjusted, and what the water quality index will be after secondary sedimentation?
Ultrafiltration and rotary disk filtration will not work here because they contain oil, polymers, and other complex components, especially the ternary production liquid sewage, which is a world problem. The problem of sewage produced from the tertiary oil field is special water quality and special treatment methods, while the standard for testing water uses universal methods. In particular, polymer molecules can easily block the detection filter paper, causing detection failure. The other two methods are simple, and a consensus should be reached with the customer 1. Use chemical means to remove polymers. If the sludge contains oil and polymers, you can contact incineration 2. The specific method of reinjecting polymer-containing sewage is to remove other wastewater without removing the polymer.: Air flotation oil removal from sewage is simple and practical. All other methods are nonsense. We have tested a variety of high-tech domestic and foreign technologies. All PASS enters the process pipeline, designs the initial purification device, adjusts the PH value, adds its own unique agent (confidential) to expel the polymer, enters the settling tank, and must design the settling time. There are two situations, sedimentation sludge is at the bottom of the tank, and floating sludge is at the top of the tank. The respective processes are diverted to the sludge treatment system. This post was last edited by lhafp on 2008-3-26 16:07 ]
It is a prerequisite to pretreat the water with a coagulant suitable for this type of water, otherwise it will be difficult to process it with any of the following processes. There is a special coagulant, you can make a sample talmh@126.com