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44results about How to "Restoring ecological functions" patented technology
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Soil heavy metal passivation agent for vegetable field
InactiveCN101322974AImprove qualityImprove commodityContaminated soil reclamationOrganic fertilisersPollution soilSoil heavy metals
The invention discloses a heavy metal passivator for vegetable field soil. The components of the heavy metal passivator comprise burnt lime, organic fertilizer for heavy metal removal and expanded perlite. The selected expanded perlite has the particle diameter ranging from 0.5 to 1.5cm preferentially. The heavy metal passivator for vegetable field soil provided by the invention passivate heavy metals, which mainly include plumbum, cadimium, chrome, copper, zinc, and the like, causing mild contamination in the vegetable field soil so that safe vegetable products can be produced on the soil slightly contaminated, the ecological function and industry function of the vegetable field soil can be recovered; therefore, the quality and the merchantability of the vegetables are improved. The materials selected for the invention are all common and easy to prepare and have low cost, which is convenient for being popularized. Experiments prove that the heavy metal passivator has extremely remarkable passivation effect on heavy metals as well as has very favorable ecological and economic benefits.
Owner:INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
City ditch polluted water in situ ecological purifying processing device
InactiveCN101007674ARestoring ecological functionsReduce consumptionTreatment using aerobic processesSustainable biological treatmentWater wheelEngineering
The invention discloses an ecological purifying device of urban effluent, which comprises the following parts: biological earthworm reactor, biological rack, hydraulic aerating distributor, biological water-wheel type rotary disc, ecological purifying functional area and aeration filter purifying system, wherein the hydraulic aerating distributor connects biological earthworm reactor through overflow distributing board, which interconnects emergent aquatic plant area of ecological purifying functional area; the biological water-wheel type rotary disc is set in the outlet channel of biological earthworm reactor.
Owner:HEBEI AGRICULTURAL UNIV.
Three-dimensional floating bed for purification of black and odorous rivers and building method
ActiveCN103663712AImprove governance effectEliminate degradationClimate change adaptationTreatment with aerobic and anaerobic processesRough surfaceAnaerobic bacteria
The invention provides a three-dimensional floating bed for purification of black and odorous rivers and a building method for the three-dimensional floating bed. A fence formed by PVC pipes and polyvinyl net is divided from top to bottom into an upper layer of floating plant growing region, a middle layer of artificial medium region and a lower layer of artificial medium region, wherein water plants with relatively developed root systems are planted on the upper layer; a biological membrane is formed on the middle layer by hanging pieces with rough surfaces and acts together with the root region of the plants on the upper layer, and organic substances are decomposed by oxygen generated by the plants; floating filler net is hung on the lower layer, and is filled with anaerobic bacteria according to different forming reasons of the black and odorous rivers, wherein the anaerobic bacteria are attached to an artificial hanging membrane, and domesticated to achieve high tolerance and degradation capability to pollutants. The three-dimensional floating bed provided by the invention has the advantages as follows: the manufacturing method of the floating bed is simple and convenient, the cost is lower, and the three-dimensional floating bed has an enhanced improvement effect on black and odorous rivers with high pollutant burdens.
Owner:沐联环境科技(重庆)股份有限公司
Method for planting river bank water-land ecotone vegetation
The invention relates to the technical field of river bank greening, in particular to a method for planting river bank water-land ecotone vegetation. According to the method, the two ends of each planted plant are pressed and buried, vertical hole planting is adopted, in this way, the impact function of a flood on the plants is greatly reduced, the risk that tree trunks are broken is reduced, and therefore the survival rate of the water-land gravel ecotone vegetation is improved; the transversely planted plants have the function of intercepting floating objects and retaining silt, the scouring of water flow on herb between every two planting holes is reduced, and therefore natural recovery and growth of the gravel ecotone vegetation are promoted; in a flood season, the plants can absorb many harmful elements in water, so that pollution is eliminated, water is purified, the quality of a water body is improved, and the ecological function of the water body is recovered; after the vegetation grows up, the water-land ecotone has certain ornamental value even in a dry season.
Owner:BEIJING FORESTRY UNIVERSITY
Controllable slow flow pollutant interception circulating module system based on sponge city construction
ActiveCN105839582AMeet drainage requirementsAchieve intelligent comprehensive managementBreakwatersQuaysWater storageDry season
The invention discloses a controllable slow flow pollutant interception circulating module system based on sponge city construction. The system is arranged at the river facing side of a riverbank; a vegetation buffer zone is arranged downwards along the slope of the bank, then, water collecting and guiding zones are arranged downwards, and next, controllable water storage modules are arranged downwards, vertically and correspondingly, wherein each controllable water storage module is of a box structure built by using unit cuboids made of a polypropylene material and is respectively 100-120m long, 1-1.2m wide and 0.5-0.6m deep, and the length and amount of the controllable water storage modules are consistent with those of the water collecting and guiding zones; and the side, close to a river channel, of each controllable water storage module is vertically and downwards provided with a miniature slow flow wetland system which is sequentially provided with a planting soil layer, a packing layer and a supporting layer from top to bottom. The invention embodies a rainy-season runoff pollutant interception control and dry-season landscape water quality maintenance method which provides reference and guide effects for city non-point source pollution control, landscape water quality maintenance, new-built municipal rain discharging hole design and sponge city construction.
Owner:科瑞斯众(天津)科技有限公司
Soil heavy metal deactivator
ActiveCN107384433AReduced effectivenessReduced portabilityAgriculture tools and machinesOrganic fertilisersSodium metasilicateSoil heavy metals
The invention relates to a soil heavy metal pollution treatment technology, and concretely relates to a soil heavy metal deactivator, and a method using the soil heavy metal deactivator to deactivate and repair soil heavy metal pollution. The soil heavy metal deactivator comprises, by weight, 30 parts of peanut shells, 15 parts of red pine needles, 10 parts of sepiolite, 10 parts of fly ash, 5 parts of chitin, 3 parts of sodium metasilicate pentahydrate, 0.4 part of sodium tripolyphosphate, 0.1 part of choline chloride, 1.2 parts of a microbial inoculum and 0.05 part of quicklime. The soil heavy metal deactivator can effectively reduce the heavy metal content of plants to achieve the deactivation and repairing purposes.
Owner:南京宁粮生物工程有限公司
Riverway bypass water purification wetland system
PendingCN111285470AImprove water purification abilityRestoring ecological functionsMarine site engineeringBiological water/sewage treatmentRiver routingWater flow
The invention relates to a riverway bypass water purification wetland system. The system comprises a drainage water purification section, a circuitous water purification section and a drainage water purification section which are sequentially communicated, wherein a water outlet of the drainage water purification section is communicated with the main river channel; the drainage water purificationsection comprises a drainage channel communicating a water inlet and the main river channel, gravels laid in the drainage channel, and gravel tumbling weirs and a plurality of first spur dikes which are sequentially distributed in the water flow direction; the first spur dikes are sequentially arranged on the two sides of the drainage channel in a staggered mode to form a snake-mouth-shaped firstpurified water channel, and the heads of the first spur dikes are obliquely arranged in the water flow direction. Sewage of the riverway sequentially flows into the circuitous water purification section and the drainage water purification section to be purified through water flow purified by the drainage water purification section and then flows into the main riverway again, multi-stage circuitousoperation is completed, and the riverway water quality purification effect is improved; and the plurality of first spur dikes form a snake-mouth-shaped first water purification channel with small circuitous water flow, so that the flow velocity can be reduced, the reflux is reduced, the contact time of water and a substrate is prolonged, the water dissolved oxygen is increased, and the river water purification effect is further improved.
Owner:CCCC GUANGZHOU DREDGING
Method for forming grassland through mixed cultivation of rhizome type leguminous and gramineous forage grass for mowing and grazing in desert saline-alkali soil
InactiveCN110447475AIncrease production capacityImprove stabilityFabaceae cultivationCultivating equipmentsSowing
The invention relates to the field of plant (forage grass) establishment, in particular to a method for forming a grassland through mixed cultivation of rhizome type leguminous and gramineous forage grass for mowing and grazing in desert saline-alkali soil. When an artificial grassland is formed in a desert saline alkali land, rhizome type leguminous forage grass Qingshui medicago sativa, rhizometype gramineous forage grass awnless brome and elytrigia elongata are cultivated together in the ratio of 1:1:1, and according to the use requirements of soil preparation, sowing, field management, mowing and grazing, the cultivation is conducted. Through the reasonable collocation of the leguminous forage grass and the gramineous forage grass, the grassland is formed through mixed cultivation ofthe rhizome type leguminous and gramineous forage grass for mowing and grazing, a northwest desert saline alkali land is effectively improved to a certain extent, the quality of the forage grass is improved, the success rate of forming the grassland in the desert saline alkali land is ensured, and the stability of a grazing community and the trampling resistance of the grazing grassland are improved; the high-quality forage grass is provided for animal husbandry in the desert saline alkali area, feed shortage in winter and spring is alleviated, the input cost is reduced, the grazing pressure of a natural pasture is reduced, and the restoration of an ecological function of the natural pasture is promoted.
Owner:GANSU AGRI UNIV
Hexavalent chromium contaminated soil remediation agent and preparation method thereof
InactiveCN109913225AThe stabilizer polyvinyl alcohol improves the stability of the drug on the one handWill not cause secondary pollutionAgriculture tools and machinesOther chemical processesPolyvinyl alcoholPolyphenol
The invention provides a hexavalent chromium contaminated soil remediation agent. The remediation agent comprises the following raw materials in parts by mass: 24-25 parts of a tea polyphenol extract,8-9 parts of a trivalent iron reagent and 1 part of polyvinyl alcohol. The invention also provides a preparation method of the hexavalent chromium contaminated soil remediation agent. The method comprises the following steps: weighing the trivalent iron agent, and stirring and dissolving the agent in pure water to obtain a ferric iron solution; weighing the tea polyphenol extract, and stirring and dissolving the extract in pure water to obtain a tea polyphenol solution; weighing and dissolving polyvinyl alcohol in pure water to obtain a polyvinyl alcohol solution; dropwise adding the tea polyphenol solution to the prepared ferric iron solution during stirring to enable the tea polyphenol solution and the ferric iron solution to be subjected to sufficient reaction, and dropwise adding thepolyvinyl alcohol solution to obtain the hexavalent chromium contaminated soil remediation agent after sufficient reaction of the tea polyphenol solution and the ferric iron solution. After the prepared soil remediation agent is used for remediating soil, the pH value of soil is restored from strong alkalinity to neutrality, the proportion of organic carbon content of soil is increased, and the soil structure and fertility are improved.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Compound river channel system
InactiveCN109385975AImprove flood protectionImprove the ecosystemStream regulationBiological water/sewage treatmentTotal phosphorusFlood control
The invention discloses a compound river channel system. The system comprises a main river channel, revetments disposed on both sides of the main river channel and at least one twisty and different-depth ecological river channel in the water flow direction built in the main river channel. The ecological river channel meets the conditions that in the flat water period and the dry water period, theflow rate of the river main stream is greater than or equal to 0.5 m / s. The compound river channel system has a great improvement on water quality, and can upgrade the main nutrient salt indexes of the water quality, such as ammonia nitrogen, total nitrogen, total phosphorus and the like, from inferior V to near class IV and above; the river channel can store water in the flat water period and thedry water period and conduct flood discharge during the rainy season to enhance the flood control capacity of the river.
Owner:SHENZHEN DIDA WATER ENG +1
Culture method of fungicide for water purification
InactiveCN105524860AFull range of effective microorganismsA large amountFungiBacteriaFungicideEnvironmental chemistry
The invention discloses a culture method of a fungicide for water purification. The method comprises the following steps: taking target water of water to be restored; mixing 60-70wt% of the target water, 20-25wt% of a microbial nutrition agent and 10-20wt% of a microbial inoculum through first mixing the target water with the microbial nutrition agent, then adjusting the pH value of the obtained mixed solution to be same to the pH value of restored water, and finally adding the microbial inoculum; and carrying out aeration oxygenation on the mixed solution 2-3 times every day for 3-5d to keep the concentration of dissolved oxygen to be 2-3mg / L, reducing the concentration of the dissolved oxygen to the concentration of the dissolved oxygen in the restored water when the concentration of florae reaches 10<2>-10<3> / mL, and completing the method when the concentration of the florae reaches 10<5>-10<6> / mL. Compared with like products in the prior art, the fungicide cultured through the method has the advantages of good adaptability, good practical sewage biological treatment effect and low cost.
Owner:杨泽科
Ecological restoration method for performing warping on ecological bags in riparian water and land ecotone by using ecological bags
PendingCN109892133AHas the effect of blocking and anti-shockProtected SurvivalReceptacle cultivationBiological water/sewage treatmentRevegetationDry season
The invention relates to the technical field of riparian vegetation restoration and greening, in particular to an ecological restoration method for performing warping on ecological bags in a riparianwater and land ecotone by using the ecological bags. According to the ecological restoration method, the ecological bags have effects of blocking and scour prevention, can protect plants to survive inthe rainy season under the situation of water impact, and achieve the effect of ecological restoration; the ecological bags can also intercept silts brought by the partial water flow to achieve the effect of soil and water conservation; the ecological bags and the planted plants can play a warping role, thereby promoting natural restoration and growth of vegetations; the plants absorb many harmful elements in a water body in the flood season, thereby eliminating pollution, purifying the water quality, improving the quality of the water body, and restoring the ecological function of the waterbody; after the plants grow up, the water and land ecotone can also have good ornamental value in the dry season. The ecological restoration method has the advantages that the survival rate and preservation rate of vegetation planting in the water and land ecotone can be increased, and the method provided for the vegetation restoration of the water and land ecotone is simple and convenient, can beimplemented in a large area, and is low in cost.
Owner:BEIJING FORESTRY UNIVERSITY
System and method for treating black and odorous stagnant water
InactiveCN105502830ADegradation of black and odor phenomenonGood removal effectWater treatment parameter controlSpecific water treatment objectivesWater qualityWater flow
The invention discloses a system and method for treating black and odorous stagnant water, and belongs to the technical field of water restoration. The system comprises a mixing zone, an anoxic zone, an aerobic zone, a stabilizing zone, enclosures and a backflow pipeline. The enclosures include the enclosure I, the enclosure II and the enclosure III and divide a riverway into the mixing zone, the anoxic zone, the aerobic zone and the stabilizing zone in sequence in the water flow direction, the mixing zone and the anoxic zone are separated through the enclosure I, the anoxic zone and the aerobic zone are separated through the enclosure II, the aerobic zone and the stabilizing zone are separated through the enclosure III, and the stabilizing zone and the mixing zone are connected through the backflow pipeline. The stabilizing zone is used for stabilizing water quality and enabling bottom backflow liquid to flow back to the mixing zone. The system has the advantages of being strong in pollutant removal pertinence and high in removal efficiency, fully guarantees the improvement of the circulating and self-purifying capabilities of the water and the restoration of the ecological function of the water and also has the advantages of being capable of reducing investment and good in operating effect.
Owner:沈晓笑
Drainage basin water ecology in-situ dredging repairing system and method
PendingCN108894269ARestoring ecological functionsRestoration of regulationWater resource protectionMechanical machines/dredgersSprayerSludge
The invention discloses a drainage basin water ecology in-situ dredging repairing system and method. The system comprises a dredging ship body (12) positioned on a riverway water surface of a treatment area, an air compressor (10) installed in the dredging ship body (12), a dredging sprayer (4) positioned in riverbed sludge (1), a high-pressure air pipe (7) communicated with the air compressor (10) and the dredging sprayer (4), multiple nano aerating devices (3) distributed at the bottom of river water (2), and an air compressing device for providing compressed air to the nano aerating devices(3). The system is capable of using the dredging sprayer to push the riverway sludge from the bottom of the riverbed into the water, stirring the sludge through the nano aerating devices, increasingdissolved oxygen content of a water body, accelerating oxygen consumption reaction progress, realizing in-situ repair of the water body in the case without closure and tube storage, completing a waterecosystem, recovering an ecological function and an adjusting function of a riverway, and reducing treatment cost of the riverway.
Owner:四川捷途环保服务有限公司
Water treatment method
ActiveCN103787489AImprove self-cleaning abilityIncrease metabolic rateBiological water/sewage treatmentChemical treatmentSelf purification
The invention discloses a water treatment method. The water treatment method comprises the following step of mixing a sea alga extract with a water body, wherein the sea algae extract is a solid mixture which is extracted by carrying out physical treatment and / or chemical treatment on sea algae; the physical treatment comprises the following steps of chopping, grinding and drying; the chemical treatment comprises the following steps of extracting, neutralizing, oxidizing and adsorbing; the sea algae contains at least one of kelps, sea-tangles, phaeophyta, sargassum, fucus vesiculosis, nori and agars. The sea alga extract and the water body are mixed so as to supply nutrition to microorganisms in the water body; the metabolism speed of corresponding specific flora in a water environment can be effectively improved and the growth is promoted; the rapid propagation of the specific flora snatch limited nutrient substances in the water body so as to inhibit the growth of other floras or algae to inhibit the relative harmful biological accumulation and improve the self purification capability of the water body.
Owner:深圳市海立方生物科技有限公司
Small watershed water ecological restoration integrated treatment system and small watershed water ecological restoration integrated treatment method
ActiveCN108911443ARealize in-situ dredging repairRestoring ecological functionsTreatment by combined electrochemical biological processesMultistage water/sewage treatmentEutrophicationRiver routing
The invention discloses a small watershed water ecological restoration integrated treatment system and a small watershed water ecological restoration integrated treatment method. The small watershed water ecological restoration integrated treatment system comprises a dredging repair subsystem, a catalytic degradation subsystem and an ecological floating island subsystem, wherein the systems are sequentially arranged in a to-be-treated watershed along a river course flowing direction, the catalytic degradation subsystem is arranged at the central position of a to-be-treated river course, and isused for catalytically degrading macromolecular organic substances and non-active metals in the water body of the watershed, the dredging repair subsystem is arranged in the upstream area of the river course of the to-be-treated watershed, and is used for differentially settling the riverbed silt at the bottom portion of the river course, and the ecological floating island subsystem is arranged in the downstream area of the river course of the to-be-treated watershed, and is used for planting aquatic organisms so as to balance and reduce the nutrients in the water body. According to the present invention, with the system and the method, the river course dredging and the catalytic degradation of macromolecular organic substances and non-active metals are achieved, the nutrients in the water body are absorbed so as to avoid the circulating pollution caused by the eutrophication of the water body.
Owner:四川捷途环保服务有限公司
Method for improving grassland productivity on basis of livestock-poultry-pasture coupling mode
ActiveCN106465699AIncrease production capacityWill not seriously damageAnimal feeding stuffCultivating equipmentsFecesAnimal Foraging
The invention relates to a method for improving grassland productivity on the basis of a livestock-poultry-pasture coupling mode. The method includes the following steps that deteriorated grassland with the vegetation coverage degree not higher than 50% or grassland with the grasshopper density being 10 grasshoppers per square meter or above is selected for stocking, and it is required that the height of a plant community is smaller than 30 cm to guarantee that poultry can see poultry houses; the stocking density and the scale of the poultry and distribution positions of the poultry houses are determined according to the use area of the selected grassland and the poultry raising aim, and the distance between the poultry houses are adjusted according to the determined stocking density of the poultry; after young poultry are subjected to heat supplication stopping and then freely raised on the selected grassland by means of the poultry houses, sufficiency drinking water supply is guaranteed in the daytime, and feed is supplemented at night; the poultry houses are moved every 1-2 months according to vegetation conditions and soil conditions of grazing pasture, and accumulated faeces are evenly scattered around the poultry houses; poultry eggs and poultry products are harvested; after the stocking period of the poultry ends, added forage is harvested and / or cattle and sheep are grazed.
Owner:INST OF BOTANY CHINESE ACAD OF SCI
Environment-friendly dredging ship for improving water quality
PendingCN112174349AOptimizationDissolve fastWater treatment parameter controlWaterborne vesselsAeration systemEnvironmental engineering
The invention discloses an environment-friendly desilting boat for improving water quality, which comprises a boat body, a high-pressure aeration water quality purification system, an adjustable aeration system, a mud-water separation system, an aeration output system and a power boat; wherein the power boat is arranged at the tail end of the boat body, and the power boat is connected with the boat body and used for driving the boat body to travel in a water area; the high-pressure aeration water quality purification system and the adjustable aeration system are installed on the ship body, andthe adjustable aeration system is connected with the high-pressure aeration water quality purification system, wherein the high-pressure aeration water quality purification system and the adjustableaeration system are both used for aerating the water bottom to achieve the purpose of purifying the water quality; the mud-water separation system is installed in the ship body and used for conductingmud-water separation on the mud-water mixed pump after the mud-water mixed pump sucks the mud-water. Thedredging ship is mainly used for purifying the water quality of a water area, has the advantageof good water quality purification effect, and meets the requirement of underwater purification.
Owner:四川旭格旻建设有限公司
Method for treating black and odorous bottom mud by combining in-situ injection of calcium nitrate and ecological restoration
PendingCN111470743AReduce contentIncreased redox potentialWater resource protectionWater treatment parameter controlEnvironmental geologyRhizome
The invention discloses a method for treating black and odorous bottom mud by combining in-situ injection of calcium nitrate and ecological restoration, which comprises the following steps: injecting5-10kg of liquid calcium nitrate solution into each square meter by using a shipborne target type dosing device, and ensuring that the depth of the liquid calcium nitrate solution injected into the bottom mud is generally 15-20cm; planting submerged plants and emergent aquatic plants in the bottom mud within 4 weeks after the liquid calcium nitrate is injected; harvesting the submerged plants at the length of 10 cm at the end of spring or summer, cutting off the upper parts of the emergent aquatic plants in winter, and remaining rhizomes. The method can treat the black and odorous riverway quickly and effectively, can improve the black and odorous sediment environment fundamentally, is low in cost, low in energy consumption and small in disturbance to the environment, is beneficial to restoring the ecological landscape of the riverway, and can restore the ecological function of the riverway fundamentally.
Owner:FOREVERWAY ENVIRONMENTAL SCI & TECH CO LTD
Degenerated marsh wetland fish habitat restoration method
ActiveCN108617556AIncrease the number ofRestoring ecological functionsClimate change adaptationPisciculture and aquariaFish weightRestoration method
The invention relates to a degenerated marsh wetland fish habitat restoration method. The technical problem that an existing marsh wetland becomes degenerated marsh without water or fish, and the ecological function of serving as transit rest land of migrating birds is lowered is solved. Accordingly, a habitat space is suitably restored, and a breeding habitat is suitably restored. For the restored marsh wetland, after a flood recedes, the number of fishes stuck in the marsh wetland is obviously increased compared with that before restoration, the increment of fish weight is 150.1%, and the increment of the number of individuals is 99.4%; a certain number of fish resources can be kept in autumn and spring for the birds to eat, and then the originally lost ecological function of serving asthe transit rest land of the migrating birds in autumn and spring is restored.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
Solar plug flow circulation and reoxygenation device and method for eutrophic water body
ActiveCN103641237AImprove conversion abilityImprove efficiencyTreatment using aerobic processesGeneral water supply conservationEngineeringSolar power
The invention discloses a solar plug flow circulation and reoxygenation device and method for a eutrophic water body, belonging to the fields of ecological management and water treatment. The solar plug flow circulation and reoxygenation device comprises a floating body playing a supporting role, a solar power supply device and a storage battery, wherein the floating body comprises three parallel floating plates, i.e., a first floating plate, a second floating plate and a third floating plate, two ends of two parallel rotating shafts are respectively arranged on the first floating plate and the third floating plate, the second floating plate is vertically arranged in the middle of the two parallel rotating shafts, one end of the second floating plate is provided with a DO (Dissolved Oxygen) device, and the solar power supply device and the storage battery are arranged in the middle of the second floating plate. The solar plug flow circulation and reoxygenation device also comprises a solar tracking device, a horizontal plug flow mixing platform, a horizontal plug flow mixing device, a vertical aeration transmission device and a vertical aeration circulating device. According to the invention, horizontal plug flow mixing circulation and vertical aeration circulation are combined, so that the two functions including reoxygenation and plug flow of the water body are unified.
Owner:沈晓笑
A soil heavy metal passivator
ActiveCN107384433BReduced effectivenessReduced portabilityAgriculture tools and machinesOrganic fertilisersRed pineMicroorganism
The invention relates to a soil heavy metal pollution treatment technology, and concretely relates to a soil heavy metal deactivator, and a method using the soil heavy metal deactivator to deactivate and repair soil heavy metal pollution. The soil heavy metal deactivator comprises, by weight, 30 parts of peanut shells, 15 parts of red pine needles, 10 parts of sepiolite, 10 parts of fly ash, 5 parts of chitin, 3 parts of sodium metasilicate pentahydrate, 0.4 part of sodium tripolyphosphate, 0.1 part of choline chloride, 1.2 parts of a microbial inoculum and 0.05 part of quicklime. The soil heavy metal deactivator can effectively reduce the heavy metal content of plants to achieve the deactivation and repairing purposes.
Owner:南京宁粮生物工程有限公司
Rare earth mining area soil improving method
InactiveCN106258058ASimple structureImprove water retentionSoil-working methodsCamellia oleiferaPunching
A rare earth mining area soil improving method comprises the following steps that S1100, mining area ground surface soil improving is carried out, so that the mining area ground surface is suitable for sod growth; S1200, uniform pond punching is carried out according to the 3m*3m distance, composite soil filling is firstly carried out, the composite soil is filled with raw red soil, and white flower tea-oil trees are planted on the red soil; S1300, deep harrowing is carried out from November every year to the end of April of the next year, growing grass is turned and pressed, humus is formed, grass seeds are sown on the ground where the white flower tea-oil trees are not planted, and grass shoots grow out again on the ground surface; S1400, repeated turning and pressing and growing of sod are carried out for 3-5 years till a soil layer with the thickness of 0.3 m is formed on the mining area ground. Compared with other methods, the rare earth mining area soil improving method has the advantages of being low in cost and good in soil improving effect.
Owner:陇川山茶茶油有限责任公司
Micro/nano nitrogen stable-release long-acting synergist and applications thereof
InactiveCN104876712AImprove biological activityReduce the rate of hydrolysisFertilizer mixturesCalcium cyanamideTrace element
The invention discloses a micro / nano nitrogen stable-release long-acting synergist. The micro / nano nitrogen stable-release long-acting synergist is composed of calcium cyanamide, attapulgite and dolomite dust, the fineness of a mixture formed by the homogeneous mixing of calcium cyanamide, attapulgite and dolomite dust is 100-1800 meshes, and the mixture contains medium elements and trace elements, so that the synergist can raise the nitrogen utilization ratio of a nitrogen-containing fertilizer, and supplement medium elements for promoting the growth and development of crops. The gaseous loss and leaching loss of a nitrogenous fertilizer are reduced, the loss and wastes of excessive elements are reduced, and the return rate of the fertilizer is improved; and a long-acting slow-release compound (mixed) fertilizer prepared by mixing the micro / nano nitrogen stable-release long-acting synergist with a nitrogen-containing compound (mixed) fertilizer has the advantages that the nitrogen utilization ratio is high, the fertilizer efficiency is long, the fertilizer supply rate and the fertilizer-required rule of crops are basically consistent, the needs of a crop in a whole growth period can be satisfied after a base fertilizer is applied at a time and no topdressing is performed, the fertilizer is saved, the cost is reduced, the yield is increased, and the quality is improved.
Owner:沈阳中科颐隆肥业有限责任公司
Plant parterre type water purifying device
ActiveCN105036349ALower the targetImprove self-cleaning abilitySustainable biological treatmentBiological water/sewage treatmentDraining tubeWater quality
The invention belongs to the technical field of water purifying, and relates to a plant parterre type water purifying device. A plant parterre is built in a water body system, and water is purified through the purifying function of aquatic plants in the plant parterre. The plant parterre is of a tank or a column shape. Inner filler is contained in an inner cavity, seam walls are arranged on the periphery of the cavity, and a steel wire mesh is inserted in the top of the cavity. The water body system is a flowing water system, a floater is arranged on the top face of the water body system, a water body bottom is laid at the bottom of the water body system, a water inlet pipe valve is arranged on one side of the water body system, an inflow water distribution tank is disposed on the inner side of the water inlet pipe valve, the tank-shaped plant parterre is arranged at the corner of the other side of the water body system, and a drainage well is arranged between the tank-shaped plant parterre and the walls of the water body system; an outflow water overflow port is formed in the upper portion of the outer side of the tank-shaped plant parterre, and a drainage pipe or ditch is arranged on the side wall corresponding to the overflow water overflow port. The water purifying device is simple in overall structure, the building process is mature, pollutant purifying efficiency is high, manual operation is not needed, the use cycle is long, effectiveness is good, plants can not spread disorderly, maintenance and management are easy, popularization is facilitated, and the application environment is friendly.
Owner:北京远浪潮生态建设有限公司
A kind of solar push-flow circulation and reoxygenation device and method for eutrophic water body
ActiveCN103641237BImprove conversion abilityImprove efficiencyTreatment using aerobic processesGeneral water supply conservationEngineeringOxygen
Owner:沈晓笑
Composite soil passivator and preparation method thereof
PendingCN114806592AAvoid destructionImprove aggregate structureAgriculture tools and machinesOther chemical processesSodium metasilicateMicrobial agent
The invention discloses a composite soil passivator and a preparation method thereof. The composite soil passivator comprises the following components in parts by weight: 80-100 parts of water, 2-8 parts of blast furnace slag, 1-4 parts of a microbial agent, 10-20 parts of a biological matrix, 2-5 parts of a nutritional agent, 4-6 parts of sepiolite, 5-15 parts of sodium metasilicate pentahydrate and 4-10 parts of a pH regulator. The passivator prepared by the invention is an organic-inorganic composite soil passivator, can effectively fix heavy metals in soil and prevent the heavy metals from entering plants, can also improve the soil environment and improve the soil fertility, and has an obvious passivation effect.
Owner:核工业西南勘察设计研究院有限公司
A method for restoration of fish habitat in degraded marsh wetland
ActiveCN108617556BIncrease the number ofRestoring ecological functionsClimate change adaptationPisciculture and aquariaMarshFish weight
The invention relates to a degenerated marsh wetland fish habitat restoration method. The technical problem that an existing marsh wetland becomes degenerated marsh without water or fish, and the ecological function of serving as transit rest land of migrating birds is lowered is solved. Accordingly, a habitat space is suitably restored, and a breeding habitat is suitably restored. For the restored marsh wetland, after a flood recedes, the number of fishes stuck in the marsh wetland is obviously increased compared with that before restoration, the increment of fish weight is 150.1%, and the increment of the number of individuals is 99.4%; a certain number of fish resources can be kept in autumn and spring for the birds to eat, and then the originally lost ecological function of serving asthe transit rest land of the migrating birds in autumn and spring is restored.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
A plant altar type water purification device
ActiveCN105036349BLower the targetImprove self-cleaning abilitySustainable biological treatmentBiological water/sewage treatmentWater qualityWire mesh
Owner:北京远浪潮生态建设有限公司
Fertilizing method for reducing cadmium content of leafy vegetables in overproof cadmium vegetable plot
ActiveCN103053255BReduced availabilityReduce the ratioFertilising methodsOrganic fertilisersLeafy vegetablesHusk
The invention discloses a fertilizing method for reducing the cadmium content of leafy vegetables in an overproof cadmium vegetable plot, which comprises the following steps: (1) taking a carbonized rice husk as a base fertilizer, applying before the leafy vegetables are sowed and uniformly raking with soil or embedding the carbonized rice husk into a planting trench before the leafy vegetables are transplanted; and (2) taking an inorganic fertilizer as an additional fertilizer, and spray-applying the inorganic fertilizer rich in nitrogen, phosphorus and potassium taken as the additional fertilizer after the final singling or the survival of the leafy vegetables. In the step (1), 250-750 kg of carbonized rice husk is applied for each mu. In the step (2), the inorganic fertilizer is uniformly divided into 3 or 4 parts and is dissolved into water to be spray-applied, the inorganic fertilizer is sprayed for the first time after the final singling or the survival of the leafy vegetables, is sprayed once every 5-10 days and is totally sprayed for three or four times, and the inorganic fertilizer provides N5-15 kg, P2O51.6-4.0 kg and K2O55.0-15.0 kg for each mu. The fertilizing method has the benefit that as the carbonized rice husk and the inorganic fertilizer are applied together, the safe quality of the leafy vegetables is improved, and the content of Cd in the leafy vegetables is reduced.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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