Preparation method of biogas desulfurization system
The biogas biological desulfurization system comprises a desulfurization tower and nutrient circulation equipment. The desulfurization tower consists of a nutrient liquid chamber, a packing bed and a spray chamber. The packing bed is located in a spray chamber. The nutrient liquid chamber is provided with nutrient liquid inlet, dilution cooling water inlet, methane inlet and air inlet, and the spray chamber above the packing bed. The nutrient liquid circulating equipment comprises a circulating pump, a pipeline and a sprinkler head, which is located at the top of the sprinkler chamber; the biogas biological desulfurization system also includes a control device, an air supply controller and a fan are arranged on the pipeline of the air inlet, and a biogas oxygen is arranged on the pipeline of the biogas outlet. The air supply controller, the fan and the methane oxygen concentration detector are separately connected with the control equipment. The biogas biological desulfurization system described in the invention can achieve the biogas renewable utilization, safety and high intelligence.
At present, in the process of sewage and garbage treatment, more and more projects choose anaerobic treatment technology. As a derivative, biogas is gradually known and used by us. But the biogas from the anaerobic tank contains high concentration of H2S and other impurities. If the biogas is not desulfurized and purified, it will corrode the biogas transportation pipeline, storage equipment and follow-up equipment, reduce the service life and form a safety hazard. Therefore, it is usually first treated by desulphurization and then reused.
The commonly used biogas biological desulfurization system is usually supplied by air blower, adding oxygen content in biogas, and converting H2S into sulfur by microbial effect. The H2S of biogas desulfurization system will produce sulfur element after treatment, because the quality of sulfur element after treatment is very small, it is difficult to recycle, and sulfur element will improve the site when the temperature is high, which belongs to risk waste, and there are safety risks in site stacking or transportation; in addition, the operation of biogas desulfurization system. The intelligent degree of control equipment is low, and most of them are operated by people on site, which brings great danger to personal safety.
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