The invention discloses an oil and gas field
sulfur-containing
sewage adsorption treatment method. According to the method, the
sulfur-containing
sewage of the oil and gas field is treated by using a dynamic adsorption technology in which kitchen waste hydrothermal carbon which is impregnated by alkali or
metal oxide or modified by
nitrogen doping is used as an adsorbent. After the treatment is finished, the
resource recovery of the adsorbed
sulfur-containing compound and the regeneration of the hydrothermal carbon are realized by
water washing and high-temperature activation. The kitchen waste hydrothermal carbon is used as an adsorbent, has the advantages of being wide in source,
environmentally friendly and low in price, and is suitable for
industrial scale application. Alkali or ZnFe2O4 is adopted for dipping, or
nitrogen-doped functional modified hydrothermal carbon with
melamine as a precursor is adopted, the adsorption capacity and the
catalytic oxidation capacity of the hydrothermal carbon can be enhanced at the same time, and the
treatment effect is greatly improved. And finally,
recovery of adsorbed sulfur-containing substances and regeneration of hydrothermal carbon are realized by using
water washing and high-temperature activation, so that secondary
pollution can be effectively reduced, sustainable utilization of resources is realized, and the operation cost is reduced. The method for treating the sulfur-containing
sewage of the oil and gas field is efficient, simple to operate, green, environment-friendly and relatively low in cost.