Gas field water mercury removal equipment and mercury removal method

Abstract

The invention relates to the technical field of gas field water treatment, and discloses gas field water mercury removal equipment and a gas field water mercury removal method.The gas field water mercury removal method comprises the steps that firstly, gas field water is injected into a coagulative precipitation tank; after the gas field water is injected into the reaction area, an operator can put a recapturing agent, a coagulant and a coagulant aid into the reaction area, so that alumen ustum is generated in the gas field water; the alumen ustum in the gas field water moves from the reaction area to the settling area along with the gas field water, settles under the influence of self gravity and enters the settling area along with the gas field water in the reaction area, and the water level of the settling area starts to rise and flows into the clear water area; under the cooperation of a booster pump, the gas field water in the clear water area passes through an activated carbon filter and a mercury removal resin mixed bed; organic matters and volatile heavy metals in gas field water can be removed through the arranged activated carbon filter; the mercury removal resin mixed bed is rich in special mercury removal ions, and mercury is selectively removed or recycled by forming stable salt, so that the mercury meets the emission standard.

Images