Application of F691 modified products in industrial wastewater treatment (1)

(3) Treatment and application in industrial wastewater

① Treatment and application in oilfield wastewater

a.

Generally, oil field wastewater contains a large amount of emulsified oil, sand, inorganic salts and bacteria.

Because the oil field wastewater contains a large amount of inorganic salts, the thickness of the electric double layer on the surface of the colloidal particles can be significantly compressed, so the flocculation of the oil field wastewater is relatively easy

Table 3-75 Comparison of flocculation effect under the dosage of 2mg/L agent

It can be seen from Table 3-75 that the flocculation effect of FQ-C is still better under alkaline conditions, and the effect is not much different under neutral and acidic conditions; while PAM-C has poor effect under alkaline conditions, and under acidic conditions The effect is best

b.

Oil field wastewater contains a large amount of inorganic salts and SRB bacteria, etc.

Table 3-76 The relationship between pitting corrosion rate and time of 5 kinds of agents

It can be seen from Table 3-76 that FNP-C and FNP-CC have the strongest corrosion inhibition ability.

In addition, oilfields also contain microorganisms, of which SRB is the main one.

c.

A better treatment effect can be achieved, and the results are shown in Table 3-77

Table 3-77 Oilfield wastewater treatment results

It can be seen from Table 3-77 that both the turbidity and the CODcr removal rate are the strongest removal ability of FIQ-C and PAC

Related links: F691 modified product in the kaolin suspension flocculation experiment application