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Modified Starch Flocculant——Application of Graft Copolymer in Oilfield Wastewater Treatment

 Last Update: 2021-11-04
 Source: Internet
 Author: User

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(2) Application in oilfield wastewater treatment

The oil field wastewater contains emulsified oil below 10μm, which usually accounts for 10% of the oil content
.

It is an emulsion with a negatively charged hydration membrane containing oil droplets.

Using SCAM to carry out clarification test and sedimentation test on oily wastewater, the COD value, turbidity, etc.
before and after treatment of oily wastewater were examined, and the mechanism of treating oily wastewater (emulsified oil-water mixed system) with SCAM was discussed, and the SCAM series were compared.
The product and polyacrylamide are used in the treatment of oily sewage.
The test results are shown in Table 3-58
.

It can be seen from the table that the clarification effect of SCAM on petroleum wastewater is better than the commonly used polyacrylamide flocculant with a relative molecular mass of 600×10 ⁴

Table 3-58 Clarification test results of oily wastewater

In addition, SCAM can also be used as the main flocculant, mixed with FeSO ₄ , Al ₂ (SO ₄ ) _3, etc.

, to jointly demulsify and flocculate oilfield wastewater

Related Links: Modified Starch Flocculant-Application of Graft Copolymer in Sludge Dewatering

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