Gas field oil-containing alcohol-containing sewage pretreatment system and method
A sewage pretreatment and gas field technology, which is applied in the gas field oily and alcoholic sewage pretreatment system, low pH value, high mechanical impurity content gas field sewage pretreatment, high oil content field, can solve the large adaptability of sewage and water fluctuations, etc. problem, to achieve the effect of low processing cost, low oil content and easy operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] This embodiment provides a gas field oil-containing alcohol-containing sewage pretreatment system, such as figure 1 As shown, it includes unloading pool 1, coarse filter 12, fine filter 13 connected at the downstream end of coarse filter 12 and raw material tank 14 connected with fine filter 13, unloading pool 1 communicates with oil-water separator 3 by pump 2, The oil-water separator 3 is connected with a regulating tank 4, and the regulating tank 4 is connected with a pipeline mixer 8, and the pipeline mixer 8 is connected with an inclined plate coalescing separator 9, and the inclined plate coalescing separator 9 is connected with a buffer tank 10, and the buffer tank 10 is The pressure pump 11 communicates to a coarse filter 12 .
[0026] The sewage pretreatment system of this embodiment includes multiple processes such as oil removal, homogenization, pH adjustment, oxidation and iron removal, flocculation, inclined plate settlement, coalescence separation, coarse ...
Embodiment 2
[0028] On the basis of Embodiment 1, in this embodiment, the oil-water separator 3 is a coalescing degreaser, which uses the difference in affinity between oil and water for coalescing materials to separate. This device has a better treatment effect on dispersed oil.
[0029] In this embodiment, the inclined plate coalescer separator 9 in the above system is an inclined plate settler connected in series with a coalescer, the inclined plate settler adopts a corrugated inclined plate, and the water inlet is a cross-flow type. This kind of device makes the sewage treatment go through two procedures in this process, that is, two filtration procedures. First, preliminary separation is carried out in the inclined plate settler. According to the density of oil and water, the gravity separation method is used to treat the oil. Sewage, to achieve the purpose of oil-water separation, the addition of corrugated inclined plates shortens the settling distance of droplets, increases the coal...
Embodiment 3
[0035] This embodiment provides a sewage pretreatment method for a gas field oily and alcoholic sewage pretreatment system. The treatment system used is the system in Example 2. For specific structures, refer to figure 1 , including the following steps:
[0036] 1) The oily and alcoholic sewage from the gas field settles initially in the unloading tank 1, enters the oil-water separator 3 under the action of the pump 2, and performs preliminary oil removal through the oil-water separator 3;
[0037] 2) Since the composition of gas field sewage is relatively complex, and the composition changes from time to time, it needs to be homogenized before subsequent process treatment, so the sewage after deoiling needs to be homogenized in the regulating tank 4;
[0038] 3) The homogenized sewage enters the pipeline mixer 8, and the pH regulator 5, the oxidizing agent 6 and the organic flocculant 7 are added to the pipeline mixer 8 to react with the sewage;
[0039] Wherein the pH regul...
PUM
| Property | Measurement | Unit |
|---|---|---|
| transmittivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More