38 results about "Biofilter" patented technology

The application relates to the field of sewage treatment, and discloses a sulfur autotrophic denitrification biofilter composite filler and a preparation method thereof. The method comprises the following steps: carrying out a silane hydrolysis reaction on a silane coupling agent containing a mercaptan group to prepare a hydrolysis solution, and then adding hydroxylated polystyrene microspheres into the hydrolysis solution to carry out a grafting reaction and prepare the sulfur autotrophic denitrification biofilter composite filler. The method grafts mercaptan groups to the surface of the polystyrene microspheres by using the silane coupling agent containing the mercaptan group. The mercaptan groups can specifically combine with sulfur transport proteins on the cell membrane of sulfur autotrophic denitrification microorganisms, so that the sulfur autotrophic denitrification microorganisms can selectively colonize on the surface of the polystyrene microspheres, competition between other microorganisms and the sulfur autotrophic microorganisms can be avoided, the colonization stability of the sulfur autotrophic microorganisms is improved, and the biofilm formation efficiency is improved.

The application discloses a biofilter and relates to the technical field of sewage treatment, which comprises a filter body, an aeration pipe is fixedly installed at the bottom end of the filter body, a support frame is arranged around the aeration pipe, the support frame comprises vertical rods and horizontal rods which are fixedly connected with each other, the vertical rods are fixedly connected with the filter body, the top end of the horizontal rods is provided with a same biofilter membrane, a liquid outlet cabin is arranged on one side of the filter body, slag prevention pieces are rotatably connected to the two sides of the vertical rods, the slag prevention pieces comprise slag blocking shells and mounting plates which are fixedly connected with each other, gas flows out through the gas passing holes of the slag blocking shells, the slag blocking shells have a certain blocking effect on solid particles in waste gas, a pretreatment cabin and a prefiltering screen for pretreating waste gas are arranged on one side of the filter body, and the waste gas is treated for multiple times, so that the technical problem that solid particles in waste gas easily cause the biofilter membrane to be blocked and affect the filtering effect of the biofilter membrane on waste gas is solved.

The utility model relates to biological filter bed technical field especially high -efficient composite biological filter bed's temperature and humidity control structure, including sampling pipe, the end of sampling pipe connects many branch pipes, the branch pipe inserts biological filler area, the bottom of biological filler area sets up bottom support frame, the one side of bottom support frame sets up waste gas air inlet pipe, the top of waste gas air inlet pipe sets up air inlet, the bottom of waste gas air inlet pipe communicates pretreatment area, the bottom of pretreatment area communicates air -guide equal -flow track, air -guide equal -flow track communicates biological filler area, the inner chamber top of biological filler area sets up a plurality of biological filler shower head, this high -efficient composite biological filter bed's temperature and humidity control structure can ensure that microorganism is in the most suitable growth temperature and humidity range, promotes the technology application and management to be more universal.

The application discloses a vertical subsurface flow and intermittent aeration microbial filter wetland system, which comprises a comprehensive water inlet pipe gallery arranged at the upstream of the wetland, a water outlet pool arranged at the downstream of the wetland and a lower microbial filter arranged between the comprehensive water inlet pipe gallery and the water outlet pool, and the top of the lower microbial filter is provided with an upper subsurface flow wetland structure; the comprehensive water inlet pipe gallery comprises a comprehensive water inlet pool with an opening facing upwards, and a plurality of columnar water inlet holes are formed in the side wall of the comprehensive water inlet pool close to the lower microbial filter; the lower microbial filter is filled with porous medium carrier fillings; the whole wetland system adopts a double-layer cooperative purification design, the lower microbial filter completes the core degradation of organic pollutants, nitrogen and phosphorus in sewage, and the upper subsurface flow wetland structure performs deep purification on residual pollutants, so that the two layers of structures perform their respective functions and cooperatively treat the sewage, and the overall purification effect of the sewage and the pollutant removal rate are greatly improved.

The present application belongs to the technical field of environmental protection, and particularly relates to a high-concentration odor combined treatment device and method for kitchen waste. The odor pretreatment unit of the treatment device comprises an alkali washing tower and an acid washing tower, and the outlet of the alkali washing tower is connected to the inlet of the acid washing tower. The odor biological treatment unit is a combined biological filter tank, which comprises a biological trickling filter section, a pre-washing section and a biological filter section connected in series, and the inlet of the biological trickling filter section is connected to the outlet of the acid washing tower. The odor deep treatment unit comprises a double-mediator barrier low-temperature plasma equipment, a delay oxidation tower and a spraying tower connected in series, and the inlet of the double-mediator barrier low-temperature plasma equipment is connected to the outlet of the biological filter section. The double-mediator barrier low-temperature plasma equipment is used for removing residual refractory odor substances in the gas. The delay oxidation tower is used for prolonging the gas residence time, and the spraying tower is used for the final purification of the gas. The present application can efficiently and accurately remove odor-causing substances, and the treated gas can meet the environmental protection requirements.

This invention proposes a single-point multi-source water quality monitoring system for factory-scale aquaculture, comprising an aquaculture pond, a microfiltration pond, and a biofilter pond that are sequentially fluidly connected and form a water circulation system. The system further includes a first water pump, a second water pump, and a third water pump respectively installed in the aquaculture pond, the microfiltration pond, and the biofilter pond. The output ends of the first, second, and third water pumps are fluidly connected to a measuring water tank via pipes. The measuring water tank is equipped with a multi-functional sensor for monitoring water quality. The bottom of the measuring water tank is fluidly connected to the microfiltration pond via a drain solenoid valve. The first, second, and third water pumps, the multi-functional sensor, and the drain solenoid valve are signal-connected to a core control board. This invention solves the problem of water quality monitoring and data comparison across multiple aquaculture water units in a factory-scale aquaculture workshop, and has advantages such as good stability, high integration, and low cost.

The utility model relates to an integrated coal-fired power plant heavy metal-containing sewage treatment system and belongs to the technical field of water pollution control. The system is connected with a grit chamber, a microfiltration membrane filter, an ozone catalytic oxidation unit, a photocatalytic oxidation unit, an electrochemical oxidation unit, an ion exchange unit, a magnetic nano adsorption unit and an anaerobic biological filter in sequence through a water inlet through a grid. The anaerobic biological filter is connected with a membrane biological reactor and a reverse osmosis system through an aerobic biological reactor. The utility model system adopts compact design, has small land occupation, low operation cost, stable and efficient treatment effect, and the effluent quality reaches the national discharge standard or reuse requirement. The utility model not only significantly improves the removal efficiency of heavy metal ions, but also realizes energy recovery through sludge anaerobic digestion and biogas power generation, having remarkable environmental benefits and economic value.

This utility model discloses a denitrification packing carrier for biological filters, belonging to the field of denitrification packing technology. It includes a packing matrix with multiple insertion and mounting cavities on its sidewalls and a mesh structure, microbial balls placed inside the packing matrix, and packing blocks located at each of the insertion and mounting cavities. Several packing blocks are attached to the sidewalls of the packing matrix, allowing it to contact wastewater from various directions. The activated carbon adsorption packing within the mesh packing blocks adsorbs the wastewater in the biological filter, while nitrifying bacteria, denitrifying bacteria, and polyphosphate-accumulating bacteria loaded on the microbial balls perform combined denitrification treatment. During the treatment process, the exothermic balls in each release cavity heat up upon contact with water, raising the temperature of the biological filter and thus promoting the denitrification reaction efficiency. This denitrification packing carrier for biological filters can efficiently and stably treat nitrogen pollutants in wastewater, achieving water purification goals.

This invention provides a method, system, and storage medium for optimizing parameters of a pyrite denitrification biological filter, relating to the field of water treatment technology. The method mainly includes: acquiring and standardizing basic data to form a dataset; calculating the suspended solids removal rate under different operating conditions, monitoring changes in filter layer porosity, and constructing a dataset of filtration performance indicators; determining key parameters such as the retardation factor, and constructing a calculation model of pressure and water quality cycles varying with filter layer thickness, combined with preset critical conditions; simultaneously establishing the models to derive the expression for the optimal critical filter layer thickness and the calculation relationship for the optimal operating cycle when water quality and pressure cycles are equal; and substituting actual operating parameters to output optimized operating parameters. This invention systematically solves the problems of subjective parameter settings and insufficient resource utilization in traditional methods, accurately locking the filter's operational equilibrium point, ensuring stable effluent quality, avoiding resource waste, adapting to different scenarios, eliminating the need for repeated experiments, significantly reducing commissioning costs, and improving the flexibility and efficiency of engineering applications.

The application discloses a foul-smelling waste gas purification method and belongs to the technical field of waste gas treatment. The method comprises the following steps: step 1, foul-smelling waste gas is sucked into an alkali washing tower through a fan; step 2, the waste gas treated by the alkali washing tower is subjected to water washing treatment in a prewashing tower, a spraying device is arranged in the prewashing tower, and the relative humidity of the waste gas reaches more than 95% after spraying washing; step 3, the waste gas treated by the prewashing tower is introduced into a biological filter tank from the bottom, a biological filler layer is arranged in the biological filter tank, and a spraying water device is arranged at the top of the biological filter tank; and step 4, the gas treated by the biological filter tank is discharged through an exhaust pipe. The bacterial agent in the biological filter tank performs biochemical conversion on the odor substances in the waste gas, adsorbs the foul-smelling substances, decomposes the foul-smelling substances into simple inorganic substances such as CO2, H2O, H2SO4 and HNO3, effectively removes foul-smelling components such as NH3 and H2S, and greatly reduces the odor concentration in the waste gas.

The invention relates to a biofilter and a method for the oxidation of methane generated in industrial, agricultural and sanitary landfill processes, among others, where the methane oxidation is biological, requiring methanotrophic microbial consortia, and where copper mining tailings are added to stimulate methane oxidation mediated by said methanotrophic microorganisms.

The utility model discloses a kind of urban and rural small micro water body biological filter, belong to sewage treatment technical field.It include aeration tank, a hollow internally arranged mounting frame is arranged in aeration tank, the upper surface of aeration tank is relatively fixedly installed with locating block, the opposite side of two locating blocks is fixedly connected with support box, mounting block is fixedly connected with mounting block on mounting frame, mounting block is fixedly connected with limit slide column on the side away from mounting frame, limit slide column is equipped with limit slide cylinder, limit slide cylinder and limit slide column are connected along the axial sliding, lifting mechanism is arranged in support box, lifting mechanism is used to drive limit slide cylinder to move up and down.The utility model can drive mounting frame, mounting pipe and aeration head to move up and out of aeration tank by starting rotating motor, so as to be convenient for the replacement of aeration head, so that aeration head does not need to climb into aeration tank to replace, so that aeration head is more convenient and fast, higher safety, reduce the difficulty of biological filter maintenance.

The present application belongs to the technical field of water treatment and environmental engineering, in particular to a gradient water flushing-chemical preservation backwashing method and device for a denitrification biofilter, comprising a cylinder and a flushing assembly arranged on a base; the cylinder is sequentially provided with a bottom water inlet area, a middle filler area and a top water outlet area from bottom to top; the top of the water outlet area is provided with a water outlet pipe; the bottom of the water inlet area is provided with a water inlet pipe; the inside of the filler area is provided with a perforated plate for loading filter material; the flushing assembly is arranged on the cylinder and used for flushing the filter material; through the gradient hydraulic design of "low-high-low", the present application realizes fine cleaning from top to bottom, compared with traditional single water flushing, can effectively remove the blockages, through the optimization of the starting and ending stages, significantly reduces the impact on the functional biofilm, and better preserves the denitrifying bacteria.

The utility model discloses a kind of biological filter equipment, including biological filter body body, washing tower, circulating mechanism, washing pool mechanism and discharge tower are equipped on biological filter body body, the internal spraying support of washing tower is communicated with the water pipe of washing tower outer wall, each spraying support is separately provided with high-pressure pump with water pipe junction, the inside bottom of washing tower is equipped with circulating water tank, washing pool mechanism includes biological washing pool, washing pool, the outside one side of circulating mechanism upper water tank is cooperatively equipped with circulating pump B, circulating pump C, the biological filter body body is preliminarily treated after using the mode of spraying to flue gas, then is sent into washing pool mechanism and carries out sufficient reaction with biological reagent and flue gas, greatly improve the treatment of substance in flue gas, while also accelerate the treatment efficiency of waste gas, while circulating mechanism circulates filtering flue gas multiple times, the dual support of physics and biology, greatly improve the effect of flue gas treatment.

This invention relates to a household kitchen waste treatment device based on the feeding method of mealworms. From top to bottom, it includes a dehydration unit, a temporary storage and conveying unit, and a biofilter unit. The biofilter unit includes a pull-out box for storing mealworms, which is detachably installed in the treatment device housing. The pull-out box contains a biological activity monitoring module and an environmental monitoring and control module, which remind the user to replace the biofilter unit when the mealworm activity is poor. This invention provides a kitchen waste treatment device that is easy to use and operate in the home, suitable for ordinary family members. It requires no advanced professional skills or breeding knowledge, nor does it require complex feed pretreatment steps. Users only need to replace the manufacturer-supplied biofilter unit according to system prompts. Furthermore, the biofilter unit's box is a fully enclosed structure, making its interior invisible to the user, thus avoiding psychological barriers during replacement.

This system provides a livestock barn methane gas emission reduction system that minimizes methane gas emissions from the barn and automates the management of the biofilter. [Solution] To this end, a livestock barn methane gas emission reduction system is provided, comprising: a polluted air collection device for collecting polluted air inside the livestock barn; a biofilter containing microorganisms that purify the polluted air collected via the polluted air collection device and decompose the methane gas in the polluted air; a sensor unit for measuring the contamination concentration of the biofilter and the metabolic activity of the microorganisms; and a central control unit that monitors the contamination concentration and the metabolic activity of the microorganisms collected via the sensor unit in real time and notifies whether the biofilter needs to be inspected.

The utility model relates to gas treatment technical field, and disclose a kind of biological filter for removing foul gas, including biological filter, the biological filter includes pool body, the inside of pool body is provided with deodorization device, the deodorization device includes bolt connection in the first cloth gas distribution plate and second cloth gas distribution plate of pool body inside front end, the second air hole is located in the left side of first cloth gas distribution plate, the surface center symmetry of first cloth gas distribution plate is equipped with the first air hole of gradually increasing aperture, the utility model discloses gradient cloth gas distribution plate design and modularization filter layer structure, significantly improve the efficiency and stability of foul gas treatment, using the double-layer gradient cloth gas distribution design of first cloth gas distribution plate and second cloth gas distribution plate, forced gas diffusion from center to edge, solve the problem of airflow concentration caused by the sudden change of cross-sectional area of traditional filter, airflow evenly distributed to avoid local overload operation, slow down the speed of filter material compaction.

The utility model relates to biological filter bed filler technology field especially a kind of high adaptability composite filler of high-efficiency composite biological filter bed, including strain box, filler layer bracket is set in the inner chamber middle part of strain box, bottom support frame is set in the bottom of strain box, filler slot is set in the side of filler layer bracket, biological filler layer is filled in filler slot, air inlet pipe is set in the other side of filler layer bracket, spray pipe is set in the top of filler layer bracket, the outer wall of spray pipe is connected with multiple spray heads, spray head is located above biological filler layer, the top of filler slot is connected with waste gas pipe, the high adaptability composite filler of this high-efficiency composite biological filter bed can provide enough survival nutrient substance for microorganism, while cooperating spray pipe, spray head and timely adding nutrient substance, ensure that microorganism can continuously carry out waste gas treatment, can also carry out vibration treatment, so that filler can keep loose, provide better living space for microorganism, reach the function of improving microorganism waste gas treatment efficiency.

The present application provides a slaughter wastewater treatment process based on a biological filter, comprising the following steps: S1: collecting a demulsification effect characteristic parameter of a pretreatment process in the wastewater treatment process, and preprocessing original data of the collected demulsification effect characteristic parameter; S2: performing standardization processing on the pretreated demulsification effect characteristic parameter to generate a demulsification comprehensive index; S3: collecting an operation health parameter in the biological filter, and preprocessing original data of the operation health parameter; S4: performing standardization processing on the pretreated operation health parameter to generate a process health index; and S5: generating an overall health index based on the demulsification comprehensive index and the process health index. The present application constructs the demulsification comprehensive index and the process health index, and fuses to generate the overall health index, so as to perform collaborative control between a flotation pretreatment unit and a biological filter main unit, guarantee the system impact load resistance and operation stability, and reduce the reagent consumption and operation cost.

This invention discloses a biofilter packing material for VOCs organic waste gas treatment and its preparation method, belonging to the technical field of biofilter packing materials. The biofilter packing material for VOCs organic waste gas treatment of this invention includes a nutrient slow-release core, a conductive functional shell layer, and a surface functionalized layer. The dry weight percentages of the raw materials for the nutrient slow-release core, conductive functional shell layer, and surface functionalized layer are 50%-60%, 35%-45%, and 3%-5%, respectively. The biofilter packing material for VOCs organic waste gas treatment and its preparation method proposed in this invention adopt a three-layer composite structure of a nutrient slow-release core, a conductive functional shell layer, and a surface functionalized layer. The core is responsible for the long-term supply of nutrients and carbon sources; the shell layer achieves efficient adsorption, conductive transfer, and microenvironment regulation; and the surface layer ensures the rapid colonization and targeted degradation of functional microorganisms. This spatial functional partitioning avoids mutual interference between different components and greatly improves the overall performance of the packing material.

The utility model discloses a kind of landfill leachate treatment biological filter, including pool body, pool body top side is equipped with inlet pipe, pool body inner bottom is equipped with water distribution device, water distribution device upper side is equipped with aeration device, water distribution device and inlet pipe are communicated by inlet pipeline, aeration device upper side is equipped with anaerobic filler layer, anaerobic filler layer upper side is connected with outlet pipe, anaerobic filler layer upper side is equipped with cover plate, cover plate edge and pool body between gap exist, cover plate top surface height is lower than inlet pipe connection position, pool body top is equipped with outlet pipe, outlet pipe is connected with water seal tank.The utility model's landfill leachate treatment biological filter, can greatly improve the processing efficiency and system stability of landfill leachate, while reducing secondary pollution.

The present application relates to the technical field of environmental pollution treatment, in particular to a method for advanced denitrification of secondary effluent of sewage plant, comprising the following steps: S1. taking volcanic rock and sulfur particles as the filler for biofilm adhesion, starting the biofilter column, and after successful start, the functional microorganisms in the biofilm include Thiobacillus and Candidatus Kuenenia; S2. mixing the primary sedimentation tank effluent and the secondary effluent according to the volume ratio of (4.5-y) / (x-4.5)~(5.5-y) / (x-5.5) to obtain the mixed liquor, wherein x and y are the ammonia nitrogen concentrations in the primary sedimentation tank effluent and the secondary effluent respectively, and the unit is mg / L; S3. taking the mixed liquor as the water to be treated for denitrification treatment, and monitoring the water quality of the treated effluent; S4. judging whether to adjust the treatment process according to the nitrogen content in the effluent. The present method can realize the advanced denitrification of the secondary effluent of sewage plant, and has low treatment cost.

The application discloses a kind of circulating water aquaculture organic matter and antibiotic targeted adsorption degradation method, belong to aquaculture pond water treatment technical field, steps are as follows: the water outlet of mandarin fish culture pond is introduced into microfilter and retained solid phase pollutants;Water outlet enters raw water pool after buffer tank;Raw water pool water outlet enters biological filter and degrades organic matter;Water outlet flows into molecular imprinting targeted adsorption unit, and antibiotic, hormone are captured by double-targeted molecular imprinting polymer adsorbent;Water outlet enters heterogeneous electrofenton catalytic oxidation unit, and electrolysis is synergized with composite catalyst to catalyze and mineralize pollutant;After water outlet is neutralized pool, into air-lift culture tower reoxygenation and culture beneficial bacteria;After sensor monitoring, water quality reaches standard and then backflow aquaculture pond, otherwise backflow to targeted adsorption unit secondary treatment.The application effectively solves the problems that existing mandarin fish culture circulating water treatment process is difficult to target removal terramycin and other pollutants, which causes accumulation, low adsorption and oxidation efficiency, material easy to inactivate, lack of intelligent control, poor water quality adaptability of effluent.

The application relates to the technical field of sewage treatment, and discloses a biological filter rotating disc system based on replaceable composite fillers and a nitrogen and phosphorus removal method. 2+ The biological filter rotating disc system supports online filler replacement and is suitable for upgrading and reconstruction of sewage plants and advanced treatment of industrial wastewater.

This utility model discloses an integrated household sewage treatment device, relating to the field of sewage treatment technology. The tank contains a pretreatment tank, an equalization tank, and a biological filter. An inlet pipe is connected to the pretreatment tank, allowing sewage to be treated to flow into it. The upper end of the pretreatment tank connects to the equalization tank, allowing pretreated sewage to be discharged into it. The equalization tank contains a water distribution element that distributes water to the sewage entering it. The biological filter contains filter media elements, and both its upper and lower ends connect to the equalization tank. The filter media elements treat the sewage in the biological filter, allowing treated water to enter the equalization tank. An outlet pipe for discharging treated sewage is located on the corresponding side wall of the tank, near the upper end of the equalization tank. This utility model has a simple structure, is easy to operate, and provides good sewage treatment results.

This application discloses a multi-stage biofilter and photocatalysis odor gas purification device, including a catalytic reaction zone, a multi-stage biofilter, and a reactive oxygen species (ROS) control structure. The ROS control structure is a triple control unit used to address the excessive diffusion of ROS generated by photocatalysis, which disrupts the ecological balance of the biofilm. The triple control unit includes a gradient controlled-release barrier module, a graded irradiation control unit, and a micro-protective structure at the biofilm interface. The gradient controlled-release barrier module is located between the photocatalytic reaction zone and the biofilm zone of the multi-stage biofilter, and sequentially forms a flow guiding and equalizing layer, an ROS buffer control layer, and a flow limiting and stabilizing layer along the airflow direction to reduce the peak concentration of ROS and achieve gradient slow release. The graded irradiation control unit is connected to the photocatalytic unit and the multi-stage biofilter, and adjusts the irradiation intensity of the photocatalytic unit according to the different levels of the multi-stage biofilter through which the gas flows, thereby controlling the amount of ROS generated at the source.