High silicon-containing waste water in oil field reuse boiler pretreatment technology and apparatus
2012
The invention relates to a high silicon-containing waste water in an oil field reuse boiler pretreatment technology and an apparatus. The pretreatment technology comprises the following steps: adjusting the high silicon-containing waste water in the oil field and adding a reverse demulsifier; depositing the adjusted waste water, separating oil and water and removing the impurity in the waste water; adding a salt substance in the waste water after deposition treatment and performing air floatation treatment, removing an dissolved organic matter and oil, filtering the waste water after the air floatation treatment and removing suspended matters; using filtering weak acid resin for preliminarily softening the filtered waste water, reducing the concentration of high valent cationic to ppm grade, using chelate resin for deeply softening the waste water after preliminary softening, and reducing the concentration of high valent cationic to ppb grade to obtain the high silicon-containing waste water after pretreatment in the oil field. The invention also provides the high silicon-containing waste water in oil field reuse boiler pretreatment apparatus.
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