19results about How to "Reduce pollution load" patented technology

This application discloses an integrated cleaning device, relating to the field of cleaning equipment, comprising a frame; a loading rack installed at one end of the frame; a unloading rack installed at the other end of the frame; a transfer mechanism installed on the frame and used for transferring optical components; a hydrocarbon cleaning unit installed on the frame and adjacent to the loading rack, the hydrocarbon cleaning unit being used to clean optical components using hydrocarbon solvents; and an HFE cleaning unit installed on the frame and adjacent to the unloading rack. This application reduces the footprint by integrating the hydrocarbon cleaning unit and the HFE cleaning unit onto the frame; it reduces mutual interference and improves safety by physically isolating the hydrocarbon cleaning unit and the HFE cleaning unit with partitions; and it prevents large amounts of hydrocarbon solvent from entering the next process by using air knife purging, greatly reducing the contamination load of subsequent HFE solvents and minimizing cross-contamination.

This application discloses a seaweed oligopeptide fertilizer for promoting root growth and seedling development, and its production process, belonging to the field of fertilizer technology. The fertilizer, by weight, comprises: 2-10 parts seaweed oligopeptide complex, 1-8 parts seaweed extract, 10-30 parts compound amino acids, 1-10 parts blueberry pomace, 20-50 parts oxytetracycline waste decomposition products, and 30-60 parts recycled organic matter from kitchen waste. By combining seaweed oligopeptides with chitosan to form a complex, the stability of the active ingredients is improved; simultaneously, the synergistic utilization of oxytetracycline fermentation waste, kitchen waste, and blueberry pomace achieves resource utilization. Experiments show that this fertilizer significantly promotes crop root growth and seedling development.

This invention discloses a resource recovery system for dredged sediment treatment based on ultrasonic extraction and flotation synergy, comprising: a pretreatment unit, a first-stage ultrasonic extraction reaction unit, a second-stage solid-phase adsorption reaction unit, a third-stage flotation separation unit, a dewatering unit, a residual water treatment unit, and a nitrogen and phosphorus recovery unit. It also discloses a resource recovery method for dredged sediment treatment based on ultrasonic extraction and flotation synergy. This invention solves the problems of low pollutant removal rate, high risk of secondary pollution of dredged soil, and limited resource recovery in traditional dredged sediment treatment. Through the synergistic effect of multiple units including "ultrasonic-liquid-solid-phase adsorption-micro-nano bubble flotation," it achieves efficient release of nitrogen and phosphorus, simultaneous removal of microplastics, rapid separation of clean sediment from polluted phases, and recovery of nitrogen and phosphorus for fertilizer production and resource recovery of clean sediment. The entire process is green and low-consumption, suitable for compact layout on water or near shore, and can simultaneously meet the requirements of sediment reduction, harmlessness, and resource recovery.

This invention belongs to the field of water treatment and discloses an iron-based hydrogel-coated MBBR suspension packing, its preparation method, and its application. The iron-based hydrogel-coated MBBR suspension packing uses MBBR packing as a carrier, with its surface coated with a dialdehyde cellulose-ε-polylysine composite hydrogel and α-Fe₂O₃ nanosheets. The hydrogel layer adsorbs and enriches antibiotics in the water; α-Fe₂O₃ provides the iron source, forming Fe under Fenton-like conditions. 2+ / Fe 3+ The process involves recycling and catalyzing H2O2 to generate hydroxyl radicals, which oxidize and degrade antibiotics. The composite gel stabilizes the iron component, reduces dissolution, and improves mass transfer and degradation efficiency, significantly enhancing the treatment effect of wastewater treatment plants on pharmaceutical wastewater. By efficiently degrading toxic and harmful antibiotics, it effectively reduces the pollution load of the pharmaceutical industry on the water environment, ensuring the stable compliance of wastewater treatment plants and improving their resilience.

The present invention discloses an optimized culture method for sulfur autotrophic denitrifying bacteria. The optimized culture method uses anaerobic activated sludge as the original strain, adopts a sulfur autotrophic denitrifying culture medium for constant temperature continuous periodic directional culture, and concentrates the fermented liquid at the end of each period and inoculates it in the next period culture medium; detects the nitrate nitrogen concentration, total phosphorus concentration and / or ammonia nitrogen concentration of the culture liquid at the end of each period, and adjusts the ammonia nitrogen concentration and / or total phosphorus concentration in the next period culture medium according to the detection results, until the nitrate nitrogen removal rate, total phosphorus removal rate and ammonia nitrogen removal rate of the culture liquid meet the standards, and the optimized culture of the sulfur autotrophic denitrifying bacteria is completed. The present invention improves the culture efficiency of the sulfur autotrophic denitrifying bacteria by optimizing the culture method. The improved culture medium and technology make the screening and enrichment of functional microorganisms more efficient, the steps are simple, no specific anaerobic microorganism culture device is required, and the entire screening and separation cycle of the bacteria is shortened.

The utility model provides a kind of assembly type biological retention facility, including overflow well (100), the one side of overflow well (100) is with filter assembly (200) with selectable mode communication, the other side of overflow well (100) is communicated with rainwater pipe network by drain pipe (500), the top of overflow well (100) allows rainwater to enter, the top of overflow well (100) is provided with pilot space (300) with the inside communication of overflow well (100), it is characterized by: the inside of overflow well (100) is provided with delay device (400) with pilot space (300) communication, delay device (400) can control overflow well (100) with filter assembly (200) with selectable mode communication;Assembly type biological retention facility adopts through pipe structure, effectively reduces excavation area, soil does not need to replace filling, maintenance operation, construction cost all reach low impact state.

The invention relates to the technical field of building water supply and drainage and sewage treatment, and particularly discloses an experimental park washing wastewater treatment method and equipment, the experimental park washing wastewater treatment equipment comprises a main frame, a washing pool is arranged above the main frame, an adjusting assembly is arranged below the washing pool, a coagulating sedimentation assembly is arranged below the adjusting assembly, and the coagulating sedimentation assembly is arranged below the main frame. An ozone oxidation assembly is arranged on the side, away from the adjusting assembly, of the coagulating sedimentation assembly, a middle water tank is arranged on the side, away from the coagulating sedimentation assembly, of the ozone oxidation assembly, and an anaerobic hydrolysis acidification assembly is arranged on the side, away from the ozone oxidation assembly, of the middle water tank; an anaerobic precipitation assembly is arranged on one side above the anaerobic hydrolysis acidification assembly; aiming at the characteristics of small one-time discharge amount, strong discontinuity and complex components of the washing wastewater in the experimental park, the pH value and flow of the wastewater are accurately adjusted, and the wastewater in different periods is temporarily stored in a separated manner, so that the quality and quantity of the wastewater entering subsequent links are stable and appropriate.

The invention belongs to the technical field of water environment treatment, and relates to a lower part water inlet type bioretention facility, which comprises a catch basin, a mud trap, a water distribution main pipe, a water distribution overflow well and a bioretention facility, and the bioretention facility comprises a water storage layer, a covering layer, a planting soil layer, a water distribution layer, an artificial soil layer and a drainage layer which are arranged from top to bottom, permeable geotextile is arranged between the water distribution layer and the artificial soil layer; the intercepting well, the mud sinking well and the water distribution overflow well are sequentially communicated, the mud sinking well is communicated with the water distribution overflow well through a water distribution main pipe, the water distribution main pipe is parallel to the bioretention facility, a plurality of water distribution branch pipes are vertically and horizontally connected to the water distribution main pipe, and the water distribution branch pipes are inserted into the water distribution layer. According to the invention, rainwater collected by more rainwater pipes with deeper burial depth can flow into the bioretention facility in a self-flowing manner, so that a lot of original places in which rainwater runoff cannot be controlled are controlled, the removal rate of pollutants in the places is improved, the pollution load of entering urban water is reduced, and the improvement of the water environment is facilitated.

The present application relates to mine environmental pollution control and water treatment technical field, specifically relates to a kind of self-flowing mine gushing water antimony pollution in situ remediation device and its use method.The device includes gushing water flow direction in sequence communication's gushing water diversion unit, sand regulating and storing unit, piezoelectric catalysis pre-control unit, iron-manganese composite oxide repair unit, and mine gushing water flows through each unit in sequence under the action of gravity.The present application utilizes the mechanical action generated by the flow of mine gushing water to drive the periodic deformation of piezoelectric material particles, generates polarized charge in piezoelectric material and promotes the generation of active oxygen species, thereby improving the redox environment of water body and promoting the transformation of trivalent antimony to more easily adsorbed and fixed pentavalent antimony.Meanwhile, through the pre-sedimentation of antimony-containing floc formed during piezoelectric catalysis process, the pollution load entering the iron-manganese composite oxide repair unit is reduced, the antimony pollutant removal capacity is enhanced, and efficient and stable remediation of mine gushing water antimony pollution is realized.

An energy-saving aluminum alloy air quenching rapid cooling system belongs to the technical field of aluminum alloy heat treatment, and comprises a flue gas waste heat recovery module for collecting waste flue gas, the flue gas waste heat recovery module provides heat for a refrigeration module 6, and the refrigeration module 6 provides cold for an air quenching module to realize air quenching of workpieces. The flue gas waste heat recovery module comprises a heat exchanger 8 connected with a waste flue gas collection pipeline, and waste flue gas provides heat for the refrigeration module 6 in the heat exchanger 8. The waste heat of the waste smoke generated in the industrial production process is fully utilized to drive the refrigerating system, dependence on traditional energy is greatly reduced, direct emission of high-temperature smoke is reduced through effective recovery and energy utilization of the waste smoke, pollution load to the environment is reduced, and clean production is achieved.

The utility model discloses an integrated device for heavy metal pollution treatment of tailing sand, which comprises a sand washing tank unit and a water treatment unit, the sand washing tank unit consists of a plurality of groups of sand washing tanks, and each group of sand washing tank comprises a sand washing head, a sand lifting and washing pipe, a sand-water separator, an overflow weir, a baffle, an air inlet pipe, a water inlet pipe, an upper wastewater pipe, a lower wastewater pipe and a sand discharge port. The water treatment unit is positioned behind the sand washing tank unit and comprises a coagulation reaction tank, a flocculation reaction tank and a sedimentation tank. Through the device, the heavy metal content and the leaching concentration of the tailing sand can be reduced, the construction period of a tailing sand restoration treatment project is shortened, the restoration cost is reduced, and resource utilization of the tailing sand is promoted.

The invention discloses a high-efficiency energy-saving industrial flue gas multi-stage dedusting and purifying system, which relates to the technical field of industrial waste gas treatment and flue gas purification, and comprises a dynamic pressure rectification recharge unit, a vortex inertia grading unit, a pulsating charge trapping unit, a dew point crossing condensation polishing unit and a tail gas pressure stabilizing and discharging unit which are sequentially communicated along the flue gas flow direction. According to the dynamic pressure rectification recharge inlet flow stabilizing structure, flue gas entering the system is subjected to rectification, speed reduction and pressure energy recovery, disordered turbulent flow is converted into a stable flow field, and an inlet dynamic pressure part is recharged to a pressure stabilizing ring to realize energy reutilization; the problems that traditional purification equipment is high in inlet turbulence, large in local pressure loss, high in fan load and uneven in airflow distribution are solved, inlet disturbance and total pressure loss of the system are reduced, the operation stability of a follow-up grading dust removal unit is improved, meanwhile, induced air power consumption is reduced, and the energy-saving performance of the system is improved.

The application discloses a preparation method of high-strength Lyocell regenerated cellulose fiber, and aims to solve the problem of insufficient mechanical strength of existing regenerated cellulose fiber caused by too wide molecular weight distribution of pulp. The method is characterized in that, through the synergistic effect of a mild pre-hydrolysis kraft (PHK) cooking process and an optimized multi-stage elemental chlorine-free (ECF) bleaching sequence (D0-E-D1), the lignin and hemicellulose are efficiently removed, and the long molecular chain of cellulose is maximally protected; through multi-stage gradient cold alkali extraction and purification treatment, the alkali concentration and low-temperature conditions are accurately controlled, and short-chain cellulose is selectively dissolved, so that the active regulation and narrowing of the molecular weight distribution of cellulose are realized, and a dissolving pulp with high polymerization degree and concentrated molecular weight distribution is obtained. Finally, the high-quality dissolving pulp is used to prepare Lyocell fiber with significantly enhanced mechanical properties through NMMO solvent system dry-jet wet spinning.

The invention relates to the technical field of sewage treatment, and discloses a method for treating chicken raising wastewater based on coupling of ultrasonic ozone and a sulfur autotrophic fungicide, which comprises the following steps: (1) performing ultrasonic-ozone combined pretreatment on the chicken raising wastewater; and (2) treating the effluent in an anaerobic reaction system containing a compound microbial agent and a sulfur-containing filler. According to the method, dephosphorization and wall breaking are enhanced through ultrasonic ozone, ammonia nitrogen is directly converted into nitrogen through the synergistic effect of the specially-made filler and the functional bacteria under the anaerobic condition, efficient nitrogen and phosphorus removal is achieved, the process is simplified, and operation is stable.

The invention discloses a sewage treatment method based on iron-carbon filler and dithionite, and belongs to the technical field of sewage treatment. The sewage treatment method based on the iron-carbon filler and the dithionite, provided by the invention, comprises the following steps: mixing the iron-carbon filler, the dithionite and wastewater, carrying out an oxidation-reduction reaction, and degrading organic pollutants in the wastewater to obtain a treated water body. According to the preparation method disclosed by the invention, the dithionite is activated through the oxidation-reduction effect of the iron-carbon filler and Fe < 2 + > / Fe < 3 + > released by the iron-carbon filler, so that strong active groups such as hydroxyl free radicals and sulfate free radicals are generated in the reaction process, and the strong active groups show strong oxidizing property due to relatively high oxidation-reduction potential; and the organic pollutants can be degraded by means of electrophilic addition, dehydrogenation, electron transfer and the like.

This utility model discloses an activated carbon adsorption tank for swimming pool water, belonging to the field of swimming pool water filtration. It includes an adsorption tank with a shell fixedly connected to both sides. A threaded rod is provided inside the shell, and a connecting plate is threaded onto the outer ring of the threaded rod. Insertion holes are provided on both sides of the connecting plate. A diatomaceous earth filter layer and an activated carbon adsorption layer are provided inside the adsorption tank, along with a primary filter screen. Through the coordinated use of these devices, the complexity of maintenance and the intensity of manual labor are reduced. It is particularly suitable for high-frequency commercial swimming pool environments, enabling rapid cleaning even when impurities accumulate quickly, shortening downtime, ensuring continuous operation of the swimming pool system, and improving equipment availability and maintenance efficiency.

The invention relates to the technical field of chemical engineering, in particular to a strontium carbonate production waste gas and waste residue combined treatment system and technology.The strontium carbonate production waste gas and waste residue combined treatment system comprises a composite reaction tank, a clarification reaction kettle and a desulfurization tower, the vertical-flow reaction tank focuses on rapid sedimentation and primary treatment, the horizontal-flow sedimentation tank focuses on deep purification, the vertical-flow reaction tank and the horizontal-flow sedimentation tank are connected in series to form a multi-layer filtering system, calcium oxide in waste residues can be subjected to a curing reaction in the composite reaction tank, and meanwhile, calcium oxide reacts with sodium sulfite in the desulfurization tower to generate a sodium hydroxide solution; through the design of the system, the combined treatment of waste residues and waste gas is realized, the cost is reduced, and the efficiency is improved.

The application provides a modular aquatic higher plant ecological treatment method and system for sea urchin / sea cucumber breeding tail water, and belongs to the technical field of breeding tail water treatment. The application adopts a tail water introduction-primary rough filtration-secondary ecological purification-tertiary deep purification gradient process, and the treated tail water is divided into two streams, one of which is used for breeding ponds and the other is discharged up to the standard. The application does not add chemical agents, realizes residue bait reuse and tail water circulation, is stable, efficient, low in cost, easy to maintain, suitable for large-scale breeding, and can directly reuse the treated tail water after disinfection, greatly saves seawater resources, forms a complete breeding water circulation closed loop, and has the advantages of ecology, practicability and economy, and is suitable for tail water treatment and resource utilization of various sea urchin / sea cucumber breeding modes.

The present invention discloses an ecosystem for comprehensively treating rainwater and domestic sewage in rural areas in hilly areas, which is composed of an improved three-compartment septic tank, an ecological pond, a water collection well, a flow abandonment device, an infiltration well, a first valve and a second valve. The ecological treatment method is used to comprehensively treat rainwater and domestic sewage in rural areas in hilly areas. The domestic sewage treatment system of the present invention includes an "improved three-compartment septic tank + ecological pond", and the ecological pond is composed of a waterfall-type ecological water distribution channel and a main body. The rainwater runoff treatment system includes a "water collection well + flow abandonment device + infiltration well", and the rainwater runoff is filtered, infiltrated and stored through the infiltration well to replenish groundwater. The overflow part is used to divert water to activate the ecological pond, or used together with the water discharged from the ecological pond for agricultural irrigation and direct discharge to rivers. The ecosystem structure of the present invention is novel, and rainwater and sewage are collected by unpowered gravity, realizing comprehensive treatment of rural rainwater and sewage and water resource utilization, and has the characteristics of unpowered output, low construction cost, convenient operation and maintenance, and outstanding economic and environmental benefits.