15 results about "Conventional pollutant" patented technology

The invention discloses a synergistic advanced treatment system and method for perfluorinated compounds and conventional pollutants in dyeing and finishing wastewater, and the method comprises the following steps: firstly, the dyeing and finishing wastewater passes through a reaction tank filled with an adsorbent, so that the perfluorinated compounds and the conventional pollutants are adsorbed and enriched to obtain effluent which can meet the wastewater discharge standard; introducing a desorption agent into the adsorbent which is saturated by adsorption to obtain a high-concentration desorption solution which is rich in perfluorinated compounds and conventional pollutants, and carrying out oxidation reaction on the high-concentration desorption solution under a subcritical condition to thoroughly degrade organic matters, according to the process, adsorption enrichment and subcritical water oxidation ultimate treatment are innovatively coupled through a desorption link, the fundamental defects that treatment of low-concentration wastewater through subcritical water oxidation is not economical and only pollutants are transferred but not thoroughly eliminated in an adsorption technology are overcome, and meanwhile efficient integration of materials and energy is achieved.

The utility model provides a sewage pollutant treatment device. The sewage pollutant treatment device comprises an anode chamber, a cathode chamber, a cation exchange membrane, an aeration structure and a data acquisition system, the anode chamber contains electrogenesis bacteria liquid containing electrogenesis bacteria; an anode carbon rod is inserted into the anode chamber and is filled with an anode graphite carbon felt; a cathode carbon rod is inserted into the cathode chamber, and a cathode graphite carbon felt is arranged on the cathode carbon rod; the cation exchange membrane is arranged between the anode chamber and the cathode chamber, and the cation exchange membrane is a proton exchange membrane; the conventional pollutants in the sewage are decomposed by utilizing electrogenesis bacteria in an anode solution in the anode chamber, chemical energy is converted into electric energy, and electrons and protons are generated; electrons reach the cathode through an external circuit, and protons are transmitted to the cathode chamber through the cation exchange membrane; the aeration structure is communicated with the cathode chamber, oxygen dissolved in the cathode chamber is combined with electrons and protons to generate H2O2, then the H2O2 and Fe < 2 + > are subjected to a Fenton reaction to generate hydroxyl radical.OH, and the hydroxyl radical.OH mineralizes novel pollutants in a cathode solution.

The present application belongs to the technical field of water pollution treatment, and particularly relates to a kind of constructed wetland coupled microbial fuel cell and a kind of water pollution treatment method.The modified iron-carbon material in the present application can reduce the inhibitory effect of antibiotics on device electricity generation, well maintain the activity of electricity-generating bacteria, and maintain stable electricity generation of the system;The modified iron-carbon material in the present application not only has efficient electron transport capacity, strengthens electron transfer, but also has a large number of active adsorption sites, can effectively remove ofloxacin, and is helpful for denitrification;At the same time, the surface area of the modified iron-carbon material is huge, and the surface is loaded with Fe, which can improve the removal capacity of phosphorus.The present application realizes efficient degradation of ofloxacin and conventional pollutants by reasonably constructing a constructed wetland coupled microbial fuel cell, and has higher electricity generation performance.

The present application belongs to the technical field of wastewater treatment, and particularly relates to a seawater breeding wastewater antibiotic removal method based on oyster shell composite filler. Fine gravel, oyster shell and functional mineral are compounded in a fixed volume ratio of 2:1:1, and are laid in a structure with a limited particle size range and homogeneity without stratification. A salinity-directed salt-tolerant domestication process and a tidal intermittent operation mode of 48h hydraulic retention + 24h emptying and reoxygenation are matched, and salt-tolerant functional bacterial flora of Proteobacteria, Paracoccus and Shigella are enriched. The present application can adapt to a wide range of salinity conditions of 10‰-30‰, relieve high salt inhibition and ion competition, simultaneously and efficiently remove three typical antibiotics of conventional pollutants, sulfamethoxazole, trimethoprim and enrofloxacin, and reduce resistance genes. The sulfamethoxazole removal rate can reach 93.94% under the condition of 30‰ high salinity, the system runs stably and has strong adaptability, and has certain engineering application value and large-scale popularization potential in the field of seawater breeding wastewater treatment.

The invention discloses an ionic composite graphene-activated carbon adsorbent and a preparation method and application thereof, and belongs to the technical field of pollutant adsorption. Graphene oxide is subjected to a base catalysis reaction to form quaternized electropositive graphene oxide; activated carbon is subjected to acid catalysis treatment to increase the phenolic hydroxyl density of the activated carbon, electronegative activated carbon is formed, and finally the two kinds of carbon material turbid liquid react to generate the composite carbon adsorption material connected by N + and O-. The prepared adsorbent has larger adsorption capacity and excellent conventional pollutant adsorption performance; when the adsorbent is used for treating papermaking wastewater, the alkaline pH environment of the papermaking wastewater can enable the adsorbent to release oxygen anions and nitrogen cations, the cellulose colloid steady state of the papermaking wastewater is broken through surface charges, meanwhile, residual pollutants in sewage are captured, the adsorption effect is further enhanced, and the defects that a traditional carbon-based adsorption material is single in electrical property and poor in adsorption effect are overcome. The high-alkalinity papermaking chemi-mechanical pulp wastewater with complex components is difficult to deal with.

The invention belongs to the technical field of water treatment, and particularly relates to a high-density precipitation system for contact oxidation coupling rapid coagulation. Comprising a main reaction system and an auxiliary carbon mud activation system, the main reaction system comprises a water inlet pipe, an activated carbon adsorption feeding point, an activated carbon mud contact oxidation chamber, a mixing chamber, a mechanical flocculation chamber and a precipitation separation chamber which are sequentially connected along the water flow direction; the auxiliary carbon mud activation system comprises an auxiliary carbon mud activation reactor and a micro-ozone aeration generator, the auxiliary carbon mud activation reactor is connected with the micro-ozone aeration generator, and the auxiliary carbon mud activation reactor is respectively connected with the precipitation separation chamber and the activated carbon mud contact chamber. Through organic coupling of contact oxidation and coagulation of the activated carbon mud, efficient contact adsorption oxidation of the activated carbon mud and organic matters, rapid mixing flocculation of a coagulant and suspended solids and efficient floc coagulation and separation are realized, and the removal efficiency of new pollutants and conventional pollutants in water and the capacity of resisting water quality and water quantity change loads are improved.

The invention discloses a plateau-based light automobile unconventional pollutant monitoring method and system, and relates to the technical field of automobile exhaust monitoring, and the method comprises the following steps: obtaining driving information and environment information of a light automobile, the driving information comprises the maximum acceleration of the vehicle, the average acceleration of the vehicle, the high-load driving time, the allowable longest driving time, the average speed of the vehicle, the maximum speed of the vehicle, the total driving distance and the maximum driving distance; the environment information comprises a road gradient, a maximum gradient, a current atmospheric pressure, a current temperature, an average temperature, a temperature range, a road gradient and a maximum gradient; a correction model of the unconventional pollutants is set, the corrected emission amount of the unconventional pollutants is calculated according to the driving information and the environment information, and the unconventional pollutants are NH3 or PN10; and displaying the corrected discharge amount for a user in a chart form, thereby completing monitoring of the unconventional pollutants.

The present application relates to gas turbine combustion technology field, specifically disclose a kind of multi-mode methanol swirl burner, mainly including main combustion stage sleeve, duty stage sleeve, main combustion stage swirler, duty stage swirler, main combustion stage methanol reformer, duty stage methanol reformer, duty stage nozzle etc..The burner of the present application has three working modes: methanol liquid mist, methanol steam and methanol reforming.In ignition starting phase, duty stage nozzle sprays liquid methanol, forms methanol liquid mist, realizes reliable ignition and combustion;Under partial load condition, duty stage and main combustion stage spray methanol steam that has absorbed exhaust waste heat, improve gas turbine thermal efficiency;Under full load condition, methanol is reformed into hydrogen-rich reforming gas in burner, into combustion chamber and burns, further improve thermal efficiency and reduce unconventional pollutant emissions.The multi-mode methanol swirl burner of the present application can meet the flexible combustion demand under different conditions, improve gas turbine thermal efficiency and reduce pollutant emissions.

The application discloses a chemical looping combustion mercury removal system and method based on oxygen carrier oxygen-chlorine double circulation. The system comprises an air reactor, a fuel reactor, a chlorine in-situ modification chamber, a separator, a dechlorination chamber, a condenser, a conventional pollutant removal device, a carbon capture and storage device and an oxygen carrier passage. The important position of chlorine in the mercury oxidation reaction is coupled with the synergistic mercury removal effect of the oxygen carrier, greatly improving the oxidation efficiency of elemental mercury in the chemical looping combustion flue gas. The chlorine is used to modify the copper-containing oxygen carrier, an oxygen-chlorine double circulation is constructed in the oxygen carrier, and the oxygen carrier simultaneously realizes the transmission of oxygen and chlorine. The chlorine component is introduced from the chlorine in-situ modification chamber, avoiding the corrosion of chlorine to the heat receiving surface after the fuel reactor. The excess chlorine is absorbed by the dechlorination agent in the dechlorination chamber, meeting the environmental protection requirements. The application realizes deep mercury removal in the chemical looping combustion system, guarantees the safety of the system operation, and has significant environmental and social benefits.

The application provides a composite flocculant for synchronously removing microplastics and new pollutants and a preparation method thereof, the method comprises the following steps: after hydrolysis and purification of a silane coupling agent TPODAC, the TPODAC is compounded and activated with aluminum salt and iron salt in a specific ratio under the condition that the pH value is 3.0-3.5, and then the composite flocculant is obtained through aging. By optimizing the key parameters such as the amount-of-substance ratio of metal elements (Al+Fe) to silicon, the aluminum-iron ratio and the activation pH value, the synergistic removal capacity of the material to multiple types of pollutants is significantly improved. The flocculant performs excellently under the condition that the pH value of the conventional water body is 7-8: 10 mg / L of the flocculant can be added to efficiently remove microplastics and conventional pollutants; 30 mg / L of the flocculant can be added to remove more than 75% of various new pollutants (tetracycline, diclofenac and ibuprofen). The application has the advantages of controllable process, wide applicability, high removal efficiency and the like, and is suitable for the synchronous advanced treatment of microplastics and new pollutants in water bodies.

This invention provides an exhaust gas analysis and testing system, operating method, and analysis and testing method for the combustion chamber of a hydrogen-powered aero-engine, relating to the field of engine emission testing technology. The system includes: a sampling and pretreatment pipeline assembly, an oxygen and conventional pollutant measurement assembly, a dual-path hydrogen measurement assembly, a control and safety assembly, and a data acquisition and processing assembly. The sampling and pretreatment pipeline assembly includes a sampling probe element and a pretreatment pipeline. The sampling probe element is connected to the pretreatment pipeline and is used to sample the exhaust gas from the combustion chamber. After sampling and pretreatment of the exhaust gas through the sampling and pretreatment pipeline assembly, the exhaust gas is transmitted to the oxygen and conventional pollutant measurement assembly and the dual-path hydrogen measurement assembly, respectively. After data measurement of the pretreated exhaust gas, the data acquisition and processing assembly records the signals of each analysis channel and stores and transmits the analysis data. The analysis and testing system provides full-process support from sample gas measurement to EI calculation.

The invention provides a tail gas analyzing and testing system for a hydrogen-burning aero-engine combustion chamber, an operation method and an analyzing and testing method, and relates to the technical field of engine emission testing. Comprising a sampling and preprocessing pipeline assembly, an oxygen and conventional pollutant measuring assembly, a dual-channel hydrogen measuring assembly, a control and safety assembly and a data acquisition and processing assembly, the sampling and pretreatment pipeline assembly comprises a sampling probe element and a pretreatment pipeline; the sampling probe element is connected with the pretreatment pipeline and is used for sampling tail gas of the combustion chamber; after being sampled and pretreated through the sampling and pretreatment pipeline assembly, the tail gas is conveyed to the oxygen and conventional pollutant measuring assembly and the double-channel hydrogen measuring assembly; after data measurement is carried out on the pretreated tail gas, signals of all the analysis channels are recorded through the data collecting and processing assembly, and analysis data are stored and transmitted. The whole process support from sample gas measurement to EI calculation is realized through the analysis test system.

The invention belongs to the technical field of riverway ecological restoration, and provides a riverway ecological substrate restoration method and system based on water quality cooperative regulation, and the method comprises the following steps: collecting riverway water body emerging and conventional pollutant concentration parameters, and extracting substrate surface biofilm respiratory metabolism activity indexes; a pollutant-metabolic activity coupling inhibition model is constructed based on a BP neural network, the biological inhibition rate is calculated, corresponding structural analogue inducers and quorum sensing signal molecules are matched from a pre-constructed medicament matching library according to the biological inhibition rate, and the quorum sensing signal molecules and the structural analogue inducers are dispersed through a porous gradient diffusion system in a substrate. Non-uniformly conveying the medicament according to the distribution difference of microorganisms; a pulse type weak micro-current is applied to a substrate area, the migration of charged emerging pollutants to a high-activity area of the substrate is accelerated by virtue of a micro-electric field effect, and meanwhile, microorganisms are induced to generate high-activity degrading enzymes by virtue of primary oxygen generated in situ by virtue of a micro-electric field and a synergistic agent, so that the enhanced degradation of the emerging pollutants is realized.

The invention belongs to the technical field of sewage treatment, and particularly relates to an autotrophic denitrification reactor for removing nitrogen, phosphorus and persistent organic pollutants. The reactor comprises a shell, a loading filler loaded in the shell and denitrifying bacteria groups inoculated on the loading filler, wherein the denitrifying bacteria groups are obtained by domesticating and enriching anaerobic activated sludge through an autotrophic denitrification culture medium. According to the present invention, the sulfur-based autotrophic denitrification biological anaerobic reactor using the sulfur-based loaded filler as the electron donor and using the long-term domesticated and enriched denitrification microbial flora as the inoculation source is self-researched and constructed according to the current sewage advanced treatment requirements; according to the reactor, the removal rate of conventional pollutants TN and TP is close to 100%, the removal rate of persistent organic pollutants E2 is close to 100%, the removal rate of CIP can be stabilized at 90% or above, and the highest removal rate of TBBPA can reach 100%. Therefore, the reactor can efficiently remove part of persistent organic matters while removing nitrogen and phosphorus.