55results about How to "Form secondary pollution" patented technology

The invention discloses a nano-chitosan composite material prepared from the following raw materials in parts by weight: 2-15 parts of polylactic acid, 5-35 parts of chitosan, 10-40 parts of hydroxypropyl methyl cellulose, 10-30 parts of a vinyl ketone polymer, 0.5-2 parts of an oxygen release compound, 0.1-0.2 part of a dispersing agent and 0.1-0.15 part of nano-particle additives. The invention also discloses a preparation method of the nano-chitosan composite material. The nano-chitosan composite material disclosed by the invention has good water-retaining performance and water resistance, and can be applied as a coating material, for example, the nano-chitosan composite material can be taken as the coating material for wrapping water or fertilizers to form nano-coated particle products. The invention discloses a preparation method of the nano-coated particle products. The nano-coated particle products disclosed by the invention have slow release performance, and after being mixed with soil, the water or fertilizers wrapped by the nano-coated particle products can be released to the soil in a slow release mode, so that the nano-coated particle products can be widely applied to desertification control processes and can be used for scientifically and efficiently performing desertification control operations.

The invention relates to a method for increasing total nitrogen removal rate for an imbalanced carbon-nitrogen wastewater wetland by using aquatic plants. A composite treatment system is constructed which comprises four subsystems, a stabilizing pond, a surface flow wetland, an ecological water channel, and a horizontal subsurface flow wetland; the subsystems are serially connected sequentially through a process. The method has the advantages that different species in an aquatic plant community are less competitive, the aquatic plant community is more stable, and secondary pollution due to centralized decomposition of aquatic plants is avoided; human resource cost is lower, and the decomposed organic matters may provide a carbon source for the denitrification of a wetland and increase the nitrogen removal rate; nitrifying effect and denitrifying effect can be balanced through alternation of the different subsystems and different regional anaerobic and aerobic environments in the subsystems in order to increase the total nitrogen removal rate; the general defect of poor winter purifying capacity of a wetland purifying project is overcome, and the shortage of summer carbon sources to the wastewater wetland is relieved; efficient, continuous and stable carbon sources can be provided.

The invention discloses a wall-mounted type air purifier based on heat regeneration and a control method thereof. The purifier comprises a closed cabin divided into a heating regeneration chamber andan air purification chamber which are arranged left and right, a flow sensor arranged in the air purification chamber, a bidirectional fan, an efficient regenerative VOCs and formaldehyde adsorption material, a coarse filter, a heating body arranged in the heating regeneration chamber, a first temperature sensor arranged in the heating regeneration chamber, five air valves controlling an air duct,a second temperature sensor arranged indoors, and a relief valve which is arranged on the cabin wall of the heating regeneration chamber and communicates with the outdoors. According to the method, pollution discharge duration is controlled through a timing and temperature measuring method, the effect that the temperature in the cabin is adapted to the indoor temperature after pollution dischargeis completed is ensured, during standby, when accumulated purification time is close to a set required desorption depollution time, desorption pollution discharge is aroused in a timed mode, and if the purification time does not approach the required desorption depollution time and the sum of the accumulated purification time and ventilation time is close to the set required desorption depollution time, dedusting is aroused.

The invention relates to a cleaning base for a surface cleaning device. The cleaning base comprises a rolling brush chamber, a rolling brush installed in the rolling brush chamber, a liquid spraying nozzle used for applying liquid to the rolling brush and a dirty liquid conveying pipeline; one end of the dirty liquid conveying pipeline is communicated with the rolling brush chamber, and the otherend of the dirty liquid conveying pipeline is communicated with a dirty liquid storage container; a circumferential passage extending in the circumferential direction is formed between the inner wallsurface of the rolling brush chamber and the outer peripheral surface of the rolling brush, the rolling brush chamber is further internally provided with a separation piece, the separation piece is atleast partially arranged in the circumferential passage in the radial direction and separates the circumferential passage into a first sub-channel and a second sub-channel, one end of the dirty liquid conveying pipeline is communicated with the first sub-channel, and the liquid spraying nozzle is at least partially located in the second sub-channel. Through the arrangement of the separation piece, the mixture of dirty liquid and clean liquid in the rolling brush chamber can be separated, secondary pollution on the ground is prevented, the working efficiency is improved, and the energy is saved.

The invention discloses a wall-mounted air purifier with the thermal regeneration function and a purification method thereof. The air purifier comprises a closed cabin with a heating regeneration room and an air purification room, a VOCs sensor, a two-way fan, an efficient regenerative VOCs and formaldehyde adsorption material and a low-efficient filter which are arranged inside the air purification room from top to bottom in sequence, and a heating body, a first temperature sensor and and five air valves for controlling air flues which are installed inside the heating regeneration room from top to bottom in sequence. The wall-mounted air purifier is characterized by further comprising a pressure relief valve installed on the bulkhead of the heating regeneration room and communicated with the outdoor part through a through-wall, and a second temperature sensor installed in the indoor part for temperature measurement, the pressure relief valve ensures that pressure relief can be performed no matter when the cabin pressure is excessively high due to the out-of-control temperature, and no secondary pollution is formed indoors; according to the method, the pollution discharge duration is controlled by adoption timing and temperature measurement, it is ensured that the temperature inside the cabin adapts to the indoor temperature after pollution discharge is finished, and during mode selection, the corresponding mode selected to be enabled is executed after the wind direction of a fan is changed for discharge ash to the outdoor part through the low-efficient filter.

The invention discloses a wall-mounted air purifier based on heat regeneration and a control method of the wall-mounted air purifier. The purifier comprises a closed cabin, a flow sensor, a VOCs sensor, a both-way draught fan, an efficient renewable VOCs and formaldehyde adsorption material, a coarse effect filter, a heating body, a first temperature sensor, five air valves, a second temperature sensor and a pressure release valve. The closed cabin is divided into a left heating regeneration chamber and a right air purifying chamber. The flow sensor, the VOCs sensor, the both-way draught fan, the efficient renewable VOCs and formaldehyde adsorption material and the coarse effect filter are sequentially arranged in the air purifying chamber from top to bottom. The heating body and the first temperature sensor are arranged in the heating regeneration chamber from top to bottom. The air valves control an air flue. The second temperature sensor is arranged indoors. The pressure release valve is arranged on a heating regeneration chamber wall and penetrates the wall to communicate with an outdoor part, and during pressure releasing of the pressure release valve, indoor secondary pollution cannot be generated. A real-time and time keeping combined method is adopted for conducting ash removal on the coarse effect filter, and a timing and temperature measuring method is used for controlling the dirt drainage time duration to ensure that after dirt drainage is over, the temperature in the cabin adapts to the indoor temperature. According to the wall-mounted air purifier based on heat regeneration and the control method of the wall-mounted air purifier, the structure is simple, operation is convenient, safety and reliability are achieved, and the control method is a manner for effectively purifying the indoor air for a long term.

The invention discloses a photovoltaic power supply-based electric sweeper with a garbage collecting box having exhausting and dust suction functions. According to the electric sweeper, a portable electric tricycle is taken as a carrier, multiple foldable solar cell panels are used for charging a vehicle-mounted storage battery, and the electric sweeper is energy-saving and environment-friendly by adoption of clean energy sources; a sweeping effect is excellent by adoption of a sweeping manner of combining horn-shaped brushes and roll brushes; a garbage collecting box adopts a self-unloading structure and is matched with an automatically-opened/closed tail door, and thus the working efficiency is high and the labor intensity of working personnel can be greatly lightened; a relative negative pressure suction effect can be formed in the garbage collecting box by means of cyclone formed in a relatively sealed roll brush chamber; because the garbage collecting box has the exhausting and dust collection functions, garbage of different sizes and dust can be sucked into the garbage collecting box by utilizing a cyclone principle, so that the energy consumption is low and the sweeping effect is good.

The invention relates to the ecological technology field of water resource recycling, in particular to a cured carrier microorganism generating system. The system comprises a hull system, an aeration system, a cured microorganism carrier system and an electronic control system. The hull system comprises a ship top cover, a floating ship, a cabin, a hull and an anchor; the aeration system is composed of an aerator, a pipeline and an air blower; the cured microorganism carrier system is composed of a cured microorganism carrier pipe, a flange, a pipeline and an air compressor; the aerator is arranged at the upper end of the cured microorganism carrier pipe, a circuit control cabinet is arranged in the electronic control system, and the air blower and the air compressor are electrically connected with the circuit control cabinet. No chemical agent is adopted in the water purification process, sewage is purified through two purifying modes including the aerator and functional microbial flora, secondary pollution to a riverway is avoided, and the purifying speed is high.

A trash can with wind-suction insect killing and sterilizing functions comprises a trash can barrel, a trash can top cover, an inset killing box, an insect trapping lamp, an insect suction draught fan, a mosquito and fly collection box, a disinfecting and sterilizing device, an electronic control part and a power supply wire inlet box. The insect killing box is fixedly arranged on one side of the trash can barrel. The trash can top cover fixedly covers openings of the trash can barrel and the insect killing box. An inner cavity of the insect killing box communicates with an inner cavity of the trash can barrel. The insect trapping lamp is fixedly installed below the trash can top cover. The insect suction draught fan is in butt joint with the opening of the insect killing box and the mosquito and fly collection box in a sealed manner. The disinfecting and sterilizing device, the electronic control part and the power supply wire inlet box are all arranged in the inner cavity of the insect killing box. The insect trapping lamp, the insect suction draught fan and the disinfecting and sterilizing device are all electrically connected with the electronic control part. The electronic control part is powered up by a power supply. The physical mosquito and fly killing and sterilizing method combining light luring and wind power sucking and killing and the disinfecting and sterilizing device is adopted for the trash can with the wind-suction insect killing and sterilizing functions, and therefore the trash can is good in killing effect, green and environment-friendly.

This invention provides a catalytic decomposition equipment of discharging oil smoke of oil smoke machine. Catalytic oxidation reactor is electric heating room and catalytic oxidation room one body vertical structure. It is consisted by catalytic oxidation pipe, electric heating inner pipe, outlet duct, reflow device, electric heating switch and catalyst. Catalytic oxidation pipe is thin wall metal pipe, it is pushed-in air exit as drawer type, electric heating inner pipe close cling to inner wall of catalytic oxidation pipe, oxidation catalyst is filled in electric heating pipe, electric heating switch is set at top part of electric heating inner pipe, reflow device is at front part of electric heating reactor, outlet pipe is at back part of catalytic reactor. The structure is compact, blower fan is used to degas, the power source is used to heat, oil smoke can be high efficiency and low temperature catalytic processed by the heating to gas when cooking. There is no secondary pollution and low consumption and energy saving.

The invention discloses application of mentha haplocalyx in heavy metal waste water treatment and belongs to the field of waste water treatment. The technical scheme adopted by the invention is as follows: mentha haplocalyx is planted in a heavy metal waste water environment, the absorption effect of the mentha haplocalyx to pollutants such as Cr(VI), Zn(II) and the like in waste water and the characteristics of strong life force, direct planting, no special management and perennation of the mentha haplocalyx are utilized, the mentha haplocalyx is planted into the heavy metal polluted water environment, and heavy metal in the waste water is absorbed, thus the aim of purification is realized. According to the invention, the operating cost is low, the effect is good, the operation is simple and practicable, the purification effect is guaranteed while a new plant resource variety used for heavy metal waste water treatment is developed, and the mentha haplocalyx with medical value can be recycled and utilized, thus providing new thinking for deep development of heavy metal waste water treatment by adopting an ecological floating bed technology and achieving far-reaching significance.

The invention discloses a dust recovery system in a crushing workshop. The dust recovery system comprises a bag type dust collector and a dust arrestor, wherein the dust arrestor is arranged below a discharge hole of the bag type dust collector and comprises a box with an opening in the upper end and a support seat below the box, multiple groups of water spray pipes are arranged in the box, nozzles are arranged on the water spray pipes, the water spray pipes are connected with a water source by a water supply pipe with a valve, and a slurry outlet is arranged at the lower part of the box and is connected with a grader via a slurry conveying pipeline. The dust recovery system has the advantages that dust output from the bag type dust collector can be treated, the pollution to the surroundings can be alleviated in the treatment process, and secondary pollution is avoided.

A light-luring and wind-suction type mosquito and fly killing multifunctional trash can comprises a trash can barrel, a trash can top cover, an inset killing box, an insect trapping lamp, an insect suction draught fan, a mosquito and fly collection box, a disinfecting and sterilizing device, an electronic control part, a power supply wire inlet box and an insect adhering plate. The insect killing box is fixedly arranged on one side of the trash can barrel. The trash can top cover fixedly covers an opening of the trash can barrel and an opening of the insect killing box. An inner cavity of the insect killing box communicates with an inner cavity of the trash can barrel. The insect trapping lamp is fixedly installed below the trash can top cover. The insect suction draught fan is in butt joint with the opening of the insect killing box and the mosquito and fly collection box in a sealed manner. The disinfecting and sterilizing device, the electronic control part and the power supply wire inlet box are all arranged in the inner cavity of the insect killing box. The insect trapping lamp, the insect suction draught fan and the disinfecting and sterilizing device are all electrically connected with the electronic control part. The electronic control part is powered up by a power supply. The insect adhering plate is pasted to the trash can barrel. The dual physical mosquito, fly and pest killing method combining pasting of a color plate and light-luring wind power suction killing is adopted for the multifunctional trash can, and therefore the multifunctional trash can is good in killing effect, green and environment-friendly.

The invention discloses a wall-mounted air purifier and a control method thereof. The purifier comprises a sealed bin divided into a heating regeneration chamber formed in the left side and an air purifying chamber formed in the right side, a two-way flow sensor arranged on the air purifying chamber, a two-way draught fan, an efficient regenerative VOCs and formaldehyde adsorption material, a coarse filter, a heating body, a first temperature sensor, five air valves for controlling air channels, a second temperature sensor arranged in a room, and a pressure release valve arranged on the bin wall of the heating regeneration chamber and communicating with the outdoor space, wherein the heating body and the first temperature sensor are arranged in the heating regeneration chamber. According to the method, the pollution discharge duration is controlled through a timing temperature increasing and measuring method, it is ensured that the temperature in the bin and the indoor temperature areadapted after pollution discharge is finished, and in a standby state, when the accumulated purifying time approximates to the set time needed for adsorption pollution disposal, adsorption pollution discharge is roused in a timed mode. The function of warning for prompting is further achieved when dust removal is unsmooth. According to the wall-mounted air purifier and the control method thereof,the structure is simple, operating is convenient, safety and stability are achieved, and a long-term effective indoor air purifying mode is provided.

A garbage can with a light-inducing and air-suction type mosquito and fly killing function comprises a garbage can body, a garbage can top cover, an insect killing box, an insect inducing lamp, an insect suction fan, a mosquito and fly collecting box, an electric control part and a power supply wire inlet box, wherein the insect killing box is fixed on one side of the garbage can body, the garbage can top cover fixedly covers the openings of the garbage can body and the insect killing box, the inner cavity of the insect killing box is communicated with the inner cavity of the garbage can body, the insect inducing lamp is fixedly mounted below the garbage can top cover, the insect suction fan is in butt joint with the opening of the insect killing box and the mosquito and fly collecting box in a sealed manner, the electric control part and the power supply wire inlet box are arranged in the inner cavity of the insect killing cavity, the insect inducing lamp and the insect suction fan are electrically connected with the electric control part, and the electric control part is powered by a power supply. The garbage can has the advantages that the light-inducing and air-suction type physical insect trapping scheme is used, harmful and environment-friendly trapping and killing of pests such as mosquitoes and flies are achieved ideally, a good killing effect is achieved, the garbage can is environmental friendly, simple in structure and low in cost, and secondary environment pollution cannot be caused by subsequent garbage treatment.

The invention discloses a wall-mounted-type air purifier based on heat regeneration and a control method thereof. The wall-mounted-type air purifier comprises a sealed cabin divided into a left heating regeneration chamber and a right air purifying chamber, and a pressure release valve, air channels and sensors for measuring the air temperature are arranged on the sealed cabin, wherein the pressure release valve is mounted on the cabin wall of the heating regeneration chamber and communicates with the outdoor space in a through-wall mode; the air channels which are controlled by electronic-control air valves to be opened/closed to communicate with the outdoor space in a through-wall mode are mounted in the lower wall of the air purifying chamber; and the sensors are arranged in the indoorspace and the outdoor space correspondingly. The control method comprises the steps that secondary pollution on the indoor space cannot be caused when the pressure relief valve conducts pressure relief; when desorption is started, if the outdoor air temperature is larger than the indoor air temperature and small than or equal to 65 DEG C, outdoor air enters the cabin, so that the outdoor air temperature serves as the initial temperature during desorption or directly serves as the desorption temperature, and thus energy is saved; and the time length of sewage disposal is controlled through a timing temperature increasing and measuring method, and thus it is guaranteed that after sewage disposal, the cabin interior temperature adapts to the indoor temperature. The wall-mounted-type air purifier is simple in structure, convenient to operate, safe and capable of saving the energy, and the control method is a way capable of effectively purifying indoor air for a long time.

The invention discloses a double-ion smoke removal machine of a chess and card room. The double-ion smoke removal machine comprises a shell, an adsorption device embedded into the shell and a lighting lamp arranged at the lower end of the shell. The adsorption device is arranged in a drawer-shaped shell. An open groove corresponding to the drawer-shaped shell is formed in one side of the middle of the shell. The adsorption device comprises a positive ion and negative ion generator and a filter screen arranged on the upper side of the positive ion and negative ion generator. A draught fan is arranged on the upper lateral side of the open groove. An exhaust inlet is formed between the lower lateral side of the opening groove and the lighting lamp. An upward-stretching exhaust outlet is formed in the upper portion of the shell. The positive ion and negative ion generator can effectively adsorb smoke particles, carrying positive ions and negative ions, in bad air in the chess and card room, guarantee a good air ventilation effect, and achieve a better purification effect so as to effectively absorb PM0.3 smoke particles carried in the bad air, and one-time ventilation purification efficiency can reach 95%; because the adsorption device is arranged in the drawer-shaped shell, maintenance and regular dirt removal are facilitated, and secondary pollution to ambient air is avoided.

The invention discloses an application of kousa dogwood to treatment of rural domestic wastewater in a combined system, belonging to the field of wastewater treatment. The problem of pollution caused by the rural domestic wastewater in a combined system is permanently solved by planting kousa dogwood in the rural domestic wastewater in a combined system and fully utilizing the characteristics that kousa dogwood absorbs the pollutants in the rural domestic wastewater in a combined system, such as NH4<+>-N, TN, TP and CODcr, and is perennial. The beneficial effects of the invention are as follows: the investment is small, the operating cost is low, the effects are good and the operation is simple and easy to carry out; harvested kousa dogwood is a medicinal and edible tree species as the fruit of kousa dogwood can be eaten when being fresh and can be used for making wine and vinegar, kousa dogwood has the functions of warming the stomach, inducing menstruation and promoting blood circulation when being used as a medicine, swelling can be eliminated by applying the fresh leaves of kousa dogwood to wounds, and blood can be replenished and irregular menstruation and abdominal pain of women can be treated by decocting the root and seeds of kousa dogwood with water and taking the decoction; environmental protection and economic construction are combined by treating the wastewater by utilizing kousa dogwood, so that the operation mode that the traditional ecological engineering depends on the government to invest capital over the years is expected to be changed; therefore kousa dogwood has profound significance.

The invention discloses a chemical product adsorbing material. The chemical product adsorbing material comprises the following components in percentage by weight: 75%-80% of silicon dioxide, 10%-15% of aluminum sesquioxide, 3.5%-4% of potassium oxide, 0.5%-1.5% of iron sesquioxide, 2.5%-4.5% of sodium oxide, 0.25%-1% of magnesium oxide and 0.75%-1.5% of calcium oxide. The chemical product adsorbing material has very strong adsorption capacity and high liquid preservation rate and is easy to transport and store, so that the use effect is good, and emergent adsorption treatment can be well provided when pollution caused by leakage of chemical liquid or oil occurs at wharfs and warehouses and on water and oceans.

The invention discloses a wall-mounted air purifier with a thermal regeneration function and a control method thereof. The wall-mounted air purifier is characterized in that a decompression valve, anair duct and sensors are arranged on a sealed cabin of the air purifier; the sealed cabin is divided into a heating regeneration chamber and an air purification chamber on the left and right; the decompression valve is mounted on the cabin wall of the heating regeneration chamber and communicates with the exterior in a wall penetrating manner; the air duct which is opened and closed through electric control air valves and communicates with the exterior in a wall penetrating manner is formed in the lower wall of the air purification chamber; and the sensors used for measuring the temperature are arranged indoors and outdoors. The method comprises the steps that when the air purifier enters a desorption state, if the outdoor temperature is higher than the indoor temperature and is smaller than or equal to 65 DEG C, outdoor air enters the cabin, and the outdoor temperature is adopted as the initial temperature during adsorption or is directly adopted as the desorption temperature; the blowdown time is controlled through a timed temperature measurement method, and the temperature in the cabin and the indoor temperature adapt to each other after blowdown; and during the blowdown process, a fan is controlled to rotate forwards and reversely to achieve dedusting. The wall-mounted air purifier is safe and energy-saving, and effectively purifies indoor air in a long term.

The invention discloses a rapid microwave treatment method of oil sludge. The method comprises the following steps that firstly, the oil sludge which is black and high in viscosity is put into a grinder to be smashed into small pieces of materials which are 1-2cm in size, then the smashed materials are transported to a material arrangement device on microwave equipment to carry out mechanical material arrangement, the materials are conveyed into a cavity of the microwave equipment, three-stage continuous heating is carried out, a gas washing device and a dedusting device are further provided in the heating process to recycle discharged gas, and after the three-stage heating is finished and the materials are cooled, treated oil sludge is obtained, wherein the obtained oil sludge is brick red in color and the weight loss rate is 58%-63%. Compared with traditional treatment methods, the method has the advantages that the time is short and 13-15 minutes are simply needed; the treatment temperature is relatively low, and waste gas can be treated clean at the temperature of 500 DEG C or below; microwave heating has a sterilization effect, and the treated oil sludge can not cause secondary pollution to environment; the operation is convenient, and continuous treatment can be carried out.

The invention discloses application of pityrogramme calomelanos link in restoration of soil polluted by cadmium. The pityrogramme calomelanos link is planted in the soil polluted by the cadmium. Due to the absorption effect of the pityrogramme calomelanos link on the cadmium and tenacious vitality of the pityrogramme calomelanos link, the pityrogramme calomelanos link can be directly planted without special management, and the problem of cadmium pollution to the soil is solved permanently according to perennial characteristics. The pityrogramme calomelanos link has small investment, low operating cost and a good effect, is easy to operate and is practicable; secondary pollution can be prevented while a purification effect is ensured; the accumulated heavy metal can be recycled by an advanced technology, so that a certain economic benefit is created; and the pityrogramme calomelanos link is suitable to be popularized in a large area.