6results about How to "In situ utilization" patented technology

This invention provides a method for producing single-cell protein using a mixed bacterial culture, comprising the following steps: performing primary seed culture on methanogenic bacteria, *Tricholoma materata*, and *Glucosinolate methyl-eating bacteria* to obtain primary seed solutions; mixing the primary seed culture solutions evenly to obtain a mixed bacterial solution; inoculating the obtained mixed bacterial solution into a secondary seed culture medium for cultivation to obtain a secondary seed solution; inoculating the obtained secondary seed solution into a fermentation medium for scale-up cultivation to obtain a fermentation broth; separating the solid and liquid components of the obtained fermentation broth, harvesting the bacterial cells, and obtaining single-cell protein. This method for producing single-cell protein using a mixed bacterial culture improves the utilization rate of the carbon source methane and the yield of single-cell protein.

This invention discloses a method for selectively recovering copper, lead, and arsenic from acidic mining wastewater, comprising the following steps: 1) preparing iron-manganese oxides with strong stability under acidic conditions; 2) converting acidic mining wastewater containing copper, cadmium, lead, arsenic, and zinc into copper-cadmium-zinc enriched wastewater and lead-arsenic enriched iron-manganese oxides; 3) converting the lead-arsenic enriched iron-manganese oxides into a lead-containing solution and arsenic-enriched iron-manganese oxides; 4) converting the arsenic-enriched iron-manganese oxides into an arsenic-containing solution and arsenic-loaded iron-manganese oxides; 5) converting copper-cadmium-zinc enriched wastewater into cadmium-zinc enriched wastewater and copper-enriched iron-manganese oxides; 6) desorbing copper from the copper-enriched iron-manganese oxides to obtain a copper-containing solution. This invention can separately enrich and recover copper, lead, and arsenic from acidic mining wastewater, achieving the recovery and utilization of heavy metal resources while treating heavy metal-polluted wastewater, and has a very broad application prospect.

The present invention discloses a device and method for preparing adjustable synthesis gas by two-stage adsorption enhancement of organic solid waste, the device comprising a catalyst regeneration reactor, a gas supply device, an organic solid waste bin, a pyrolysis / gasification reactor, a water vapor pipeline and an adsorption catalytic reforming reactor. Through the disclosed method for preparing adjustable synthesis gas by two-stage adsorption enhancement of organic solid waste, hydrogen-rich gas and CO-rich gas are obtained in two stages respectively, the regeneration of Ca-based bifunctional catalyst and the on-site utilization of CO2 are synergistically achieved, the carbon conversion rate and synthesis gas yield of the adsorption-enhanced gasification reaction are improved, and the problem that the synthesis gas produced by pyrolysis / gasification cannot be directly used for the synthesis of downstream products is solved. The method can be widely applied to the field of pyrolysis and gasification of organic solid waste, and has a broad application prospect.

The invention discloses a pyrolysis and electric hydrogen production and methanol co-production system based on a fluidized bed coal-fired power plant, which comprises a tire pyrolysis unit, a zeolite heat storage and heat pump heating unit, a methanol synthesis unit and an oxygen-enriched fluidized bed supercritical CO2 power generation unit, and the tire pyrolysis unit cleanly utilizes waste through tire pyrolysis to realize energy conservation and emission reduction; part of pyrolysis products provide part of energy for self pyrolysis, pyrolysis energy consumption is reduced, and combustion products are CO2 and can provide clean raw materials for methanol synthesis; the zeolite heat storage and heat pump heating unit adopts zeolite thermochemical energy storage equipment with higher energy storage density to recover flue gas waste heat, and supplies heat together with air energy through an absorption heat pump at night, so that the heat supply capacity is improved; electric power of an electrolytic cell in the methanol synthesis unit comes from the system, so that purchase of external expensive electric power is reduced, and on-site utilization of energy is realized; the oxygen-enriched fluidized bed supercritical CO2 power generation unit adopts three-stage compression supercritical CO2 power generation circulation and has high power generation efficiency.

The application relates to an automatic classified biomass garbage recycling treatment system for a zero-carbon park, which comprises a garbage classification system, a garbage treatment system, a storage system and a cleaning system. The garbage classification system classifies and processes garbage, the garbage treatment system recycles and processes garbage, the storage system stores the recycled and processed garbage, and the cleaning system cleans the garbage classification system. The automatic classified biomass garbage recycling treatment system for the zero-carbon park can solve the problems that garbage classification often depends on manual work or single technology, the classification accuracy is low, a large amount of garbage is still landfilled or incinerated, energy is wasted, carbon emission is caused, especially the biomass waste such as peels and fallen leaves generated in the park, which needs to be collected and transported to the outside for traditional treatment, thereby increasing traffic energy consumption and carbon footprint.

The invention discloses a coal-based concrete supporting column supporting method and system and an intelligent continuous supporting unit. The method comprises the following steps: according to an empty roadway supporting task, comprehensively considering factors such as an empty roadway elastic deformation energy release space under the action of advanced supporting stress, mine pressure display strength after the empty roadway is exposed, an included angle between the empty roadway and a coal face and the like, determining performance indexes and the number of required coal-based concrete struts, and further determining the amount of standby coal; original coal produced by the underground coal face and obtained according to the coal quantity is conveyed to a preset area, then preset particle size screening is carried out, and target coal is obtained; target coal and cementing material slurry are stirred through intelligent continuous supporting equipment, coal-based concrete slurry is prepared, and the slurry is conveyed into a mold. According to the method, the coal aggregate can be obtained in situ underground to prepare the underground supporting material, so that the supporting requirements of different empty roadways are met, automatic, continuous and high-efficiency mold erecting and supporting column pouring are realized, and the safety of underground operation is effectively guaranteed.