Method for treating oil field produced waste water containing polymer
A technology for oil extraction sewage and treatment methods, which is applied in the fields of light water/sewage treatment, oxidized water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., which can solve the problems of unguaranteed water quality and the influence of changes in HPAM content.
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[0004] Specific embodiment 1: This embodiment performs sewage treatment according to the following steps: (1) Settling and separation of polymer-containing oil production sewage; (2) Performing secondary filtration on the settling effluent; (3) Then performing oxidation treatment on the filtered effluent (4) Finally, carry out fine filtration treatment on the oxidized effluent. The two-stage filtration includes deep-bed filtration of fruit shells and filtration of double-layer filter materials. The oxidation treatment process is as follows: filter the water into the oxidation reactor, set the light source ultraviolet lamp in the reactor along the longitudinal axis, pump hydrogen peroxide from the lower part of the reactor, and generate ozone from the ozone generator and pass through the bottom of the reactor. The gas distribution device is passed into the reactor. The oxidation reactor is a concentrating photochemical reactor. The fine filtration treatment process is as follows: t...
Example Embodiment
[0005] Specific embodiment 2: This embodiment will describe in detail the treatment method of polymer-containing oil production wastewater: (1) The polymer-containing oil production wastewater first enters the combined sedimentation separation tank, where the oil-water separation and the sedimentation separation of particulate matter are carried out to remove The slick oil, unstable emulsified oil and particles that are easy to settle in the sewage; (2) The settled effluent enters the nut shell deep-bed filter and the double-layer filter for secondary filtration to further remove the oil and particles in the sewage The above-mentioned sedimentation-secondary filtration treatment process is the current sewage treatment process of some oil extraction plants in Daqing Oilfield; (3) The filtered water then enters the advanced oxidation reactor, the oil in the sewage in the reactor will be completely removed, and the HPAM macromolecule It is oxidized and degraded into small molecules, ...
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