87 results about "Ecological significance" patented technology

The invention relates to a calculation method for determining the water demand of natural wetland ecological environment restoration. The method comprises the steps that a wetland is divided into a wetland core region and a wetland ecological region according to a wetland ecological hydrological layout model, wetland data is acquired, and a regional range is determined; the range of the wetland core region is calculated according to critical moisture conditions, and an area guaranteeing ecological system integrity is utilized to represent and determine the range of the wetland ecological region; the water demand of wetland ecological environment restoration is divided into a wetland minimum ecological environment water demand and a wetland appropriate ecological environment water demand, and calculation is performed according to the regions; and a pollutant dilution and purification water demand is compared with a wetland organism habitat water demand, and the larger value is taken asthe wetland appropriate ecological environment water demand. According to the method, different methods are adopted for the wetland core region and the ecological region to calculate the ecological environment water demand, the method conforms to physical and ecological significance represented by the wetland minimum ecological environment water demand and the wetland appropriate ecological environment water demand, and therefore the calculation result is more accurate.

A biosorption material, a preparation method and purpose thereof. The preparation method is by charring corn straw cores at 200-300 DEG C for 1-3 h. According to the invention, corn straw cores are modified through a physical method to substantially reduce adsorption to water, increase adsorptivity to petroleum; the corn straw cores are controlled to absorb petroleum first and has a fast petroleum adsorption speed. The production method is simple and practical, utilize pollution-free material and has low operation temperature and low energy consumption. The invention fully utilizes a lot of excessive and cheap corn straw to changing waste into valuables. The biological petroleum adsorption material made of corn straw core has small proportion, is convenient for transportation and recovery and floats on water surface without deformation; and absorbed corn straw cores can be used as industrial raw material or substitution energy. The material can realize rapid removal of water surface petroleum pollution and avoid large diffusion and secondary pollution of oil stain, and has important social, economic and ecological significance for marine protection, river ecology and environment.

The invention belongs to a synergistic insecticidal composition which is a mixture of a compound (A) chlorantraniliprole and a compound (B) indoxacarb. The insecticidal composition provided by the invention can be processed into missible oil, a suspending agent, a wettable powder and water dispersion granules. The weight ratio of the compound (A) chlorantraniliprole to the compound (B) indoxacarb is 1-100: 1-100. The insecticidal composition has high insecticidal efficiency, can be used to effectively control a plurality of insects on a plurality of crops such as paddy rice and the like, has a higher prevention effect than a single compound (A) or single compound (B), and is used to greatly minimize the application dosage of each active substance. The invention is not only of ecological significance but also of important significance in environmental protection.

The invention provides a dinotefuran -containing insecticidal composition. The active component of the dinotefuran -containing insecticidal composition consists of flubendiamide, monosultap and dinotefuran in a weight ratio of (1-18) to (20-75) to (1-16). The composition has an obvious synergic effect and a persistent effect which are greater than a single using effect respectively. According to a cotoxicity coefficient formula of Sunyunpei, the cotoxicity coefficient of the insecticidal composition of the components is ranged from 180.39 to 296.64 and is obviously greater than 120, so that the insecticidal composition has the obvious synergic effect and the persistent preventing and treating effect, the insecticidal spectrum is expanded, and the insecticidal composition has the relatively high activity on rice planthopper, tryporyza incertulas, chilo suppressalis, rice leaf folders, brassicaceous vegetable plutella xylostella, aphid and sugarcane injurious insects. Meanwhile, the applying amount of active substances is greatly reduced, so that the dinotefuran-containing insecticidal composition has the ecological significance and the environment-friendly significance.

The invention relates to the preparation field of sustained-release preparations, in particular to a pasty Holotrichia parallela sex attractant sustained-release preparation and a preparation method thereof. The pasty Holotrichia parallela sex attractant sustained-release preparation is prepared from sex attractant effective constituent, an auxiliary material A, an auxiliary material B, an auxiliary material C and an auxiliary material D in certain proportion, wherein the sex attractant effective constituent and the auxiliary materials A, B and C are solid, and the auxiliary material D is liquid. Compared with an existing sex attractant preparation, the sustained-release preparation has the advantages of simple preparation process, reliability in dosage preservation, and obvious release rule, and environment-friendly effect; the release curve of the sustained-release preparation meets the quadratic trinomial rule, and the pasty Holotrichia parallela sex attractant sustained-release preparation has trapping effect up to 30 days on Holotrichia parallela, overcomes the disadvantages of short lasting period and wasted labor cost of an existing dosage form, has feasibility for large-scale production, facilitates large-scale promotion in farmers and has obvious economic significance and ecological significance.

The invention relates to a method for promoting residual sludge anaerobic fermentation to produce fatty acid through potassium peroxymonosulfate sulfate compound salt (PMS). The method specifically comprises the following steps: (1) treating residual active sludge generated by a secondary sedimentation tank of a municipal sewage treatment plant as a fermentation raw material, and naturally settling to remove liquid supernatant to concentrate and treat to obtain a sludge sample; (2) mixing and pre-treating the sludge sample with potassium peroxymonosulfate sulfate compound salt (PMS), and fermenting under an anaerobic environment to generate fatty acid. After residual sludge is subjected to PMS pretreatment, dissolving of organic substances in sludge is quickened, and activity of acid-consuming microorganisms such as methanogenic bacteria is further inhibited sufficiently, and therefore, the acid yield is greatly increased, and sludge anaerobic fermentation time is shortened; and moreover, the method provided by the invention is simple in operation, and has important environment-friendly ecological significance for reducing, recycling and stabilizing sludge.

Disclosed is a floating three-dimensional device for culturing coral in seawater. The device comprises a floating body, a connecting body and a floating body connector, and the connecting body is arranged in the seawater; the connecting body comprises a connecting object and a base; the floating body is connected with the connecting object; the connecting object is provided with the base; the baseis fixedly provided with the coral. The device can be not only used for the ultra-large-scale culture of the coral but also used as attachment land for some bacteria, algae and the like in a marine ecosystem or provide a habitat place for other organisms such as certain zooplankton, the growth surface area of marine organisms is increased, and the device has important ecological significance; thedevice can also be used for adjusting the materials and numbers of all parts according to actual conditions, all the parts can be freely combined into different configurations, and the device has high applicability.

The invention belongs to the technical field of sludge treatment, and particularly relates to a method for simultaneously and deeply conditioning and dewatering sludge and recycling and conditioning an activating agent. The treatment method includes the steps: adjusting water content and pH (potential of hydrogen) of sludge; mixing the sludge and zero-valent iron to obtain mixture, continuing to add potassium hydrogen peroxymonosulfate to perform heat treatment of the sludge, performing magnetic separation of the zero-valent iron on the treated sludge to reach recycling of the activating agentand conditioning of the sludge, and dewatering the treated sludge. The reduction rate of specific resistance of the conditioned sludge is 91.1%, water content of filter cakes is reduced to 67.1%, andiron recycling rate reaches 98.3%. According to the method, the sludge is synergistically conditioned through combination of chemical activation and heat activation based on sulfate radical anion, dewatering performance of the sludge can be remarkably improved, the activating agent is recycled, and popularization of the technique has important environmental and ecological significance for national sludge treatment and disposal.

The invention belongs to a synergistic insecticidal composition, which is a mixture of compound (A) dinotefuran and compound (B) flubendiamide. The insecticidal composition of the present invention can be processed into emulsifiable concentrates, suspension concentrates, wettable powders, and water-dispersible granules. In the present invention, the weight ratio of compound (A) dinotefuran to compound (B) flubendiamide is 1-100:1-200. The insecticidal composition of the invention has high insecticidal efficiency and can effectively prevent and control various pests on various crops such as rice and vegetables. The control effect is significantly higher than that of compound (A) or compound (B) alone, and the dosage of each active substance is greatly reduced. The present invention not only has ecological significance, but also has important environmental protection significance.

The invention discloses a method for preventing and treating soil insects by entomopathogenic nematodes. The method is characterized by comprising the specific steps: (a) preparing an entomopathogenic nematode suspension; (b) applying the entomopathogenic nematode suspension at a larval stage of the soil insects in a manner of enabling the entomopathogenic nematode suspension to be uniformly distributed to the land surface of crop soil; and (c) infecting larvae of the soil insects in the soil by the entomopathogenic nematodes in the entomopathogenic nematode suspension, so as to prevent and treat the soil insects. The method is a pollution-free natural-enemy biological control technology and has the characteristics of being convenient in application, high in host-searching capability, high in infected killing effectiveness, high in effect taking speed, safe to human and livestock, natural enemies and environments and the like, the defects of the traditional microbial agent biopesticides that the effect taking speed is low, resistance is easy to generate, the soil insects cannot be prevented and treated, and the like are broken through, and the soil insects can be prevented and treated instead of high-toxicity high-residue chemical pesticides, so that the method not only has ecological significance, but also has important environment-friendly significance.

The invention provides a new bacterial strain-Aspergillus oryzae 2013-DP1, and applications in preparation of feed additives through microbial fermentation. The strain is preserved in China Center for Type Culture Collection. The address is Wuhan University, Wuhan, China. The postcode is 430072. The preservation date is June 21th, 2013. The preservation number is CCTCC No: M2013276. Through fermentation and enzymatic hydrolysis conversion of low-value cellulose substances of straws and the like, the strain raises the protein content properly, raises nutritive values, can promote development of feed sources, raises the utilization rate of waste biological resources, and has obvious economic and ecological significances.

The invention discloses a method for treating organic matters in spirulina cultivating waste water. The method comprises the following steps of: filtering with a 80-mesh filter screen and a 360-mesh filter screen respectively; continuously applying a micro-bubble generating technology and bottom gas filling, wherein during the micro-bubble generating technology and the bottom gas filling, a gas filling pipe for generating micro-nano bubbles is laid at the bottom of a treatment pond, and the gas outlet hole of the gas filling pipe faces the bottom or approximately the bottom of the treatment pond; controlling the deep water level of the treatment pond at 1.5-2.5 meters, precipitating organic matters and releasing upper purified water; and transferring organic matters precipitated at the bottom of the treatment pond to a filter screen bag, removing moisture by extruding, drying in the sun or drying. Due to the adoption of a mechanical-physical method, the energy consumption is low, no medicine is adopted, water can be used repeatedly, the collected particles have further utilization value, and good economic benefit, high social value and great ecological significance are achieved.

The invention discloses a method for controlling phyllotreta striolata fabricius through entomopathogenic nematodes. The method is characterized by particularly comprising the steps that 1, an entomopathogenic nematode suspension is prepared; 2, a controlling chemical is prepared; 3, soil moisture is kept, and the controlling chemical is applied; 4, an insect-proof screen is arranged for blocking, and the controlling chemical is put on the insect-proof screen regularly. The method is a nuisanceless natural enemy organism controlling technology and has the advantages of being convenient to apply, high in host seeking capacity and effectiveness of infection to death, rapid in onset time, safe to people and livestock, natural enemies and environments and the like, the problem that at present, ordinary chemicals cannot control larvae of the phyllotreta striolata fabricius is broken through, high-toxic and high-residue chemical insecticide can be replaced, and both ecological significance and important environment protection significance are achieved.

The invention provides a plant growth promoting agent. The plant growth promoting agent comprises water extracts of dry powder of overgroundparts of German chamomile, hyssopus officinalis and tanacetum vulgare L. After the plant growth promoting agent is applied to leaf vegetables of pakchoi, oilseed rape, lettuce and the like, during harvesting, compared with plants which are not applied with theplant growth promoting agent, the height of the leaf vegetables which are applied with the plant growth promoting agent increases by 41.5%, the number of leaves 24%, the dry weight of the overgroundparts 75.2%, and the overall weight 70.4%. Compared with plants which are applied with fertilizers normally, the leaf vegetables applied with the plant growth promoting agent have a similar growth effect, but the plant growth promoting agent has a larger ecological significance. In practical production, the plant growth promoting agent can replace normal fertilizers, accordingly the application ofnitrogen is reduced, and the problem is relieved that currently a nitrogenous fertilizer is applied in soil excessively thus the nitrogenous fertilizer is residual.

The invention discloses a wave-powered floating box type coral undersea cultivation device facilitating the coral growth. The device is composed of a coral cultivation module and a wave energy conversion module; the main body structure of the coral cultivation module is a coral cultivation box; the bottom of the coral cultivation box is provided with a floating body, and the inner portion of the coral cultivation box is horizontally provided with a coral transplantation plate; the wave energy conversion module is connected with the coral cultivation module through a stay chain, and the wave energy conversion module comprises a base, a generator set and a hydraulic cylinder. Under the action of waves, the coral cultivation box oscillates up and down to drive a piston to reciprocate throughthe stay chain, the conversion of wave energy-mechanical energy-electric energy is finally achieved through the generator set, on one hand, the produced electric energy is supplied to a light source in the coral cultivation box to promote photosynthesis of phycobiont on the surfaces of corals, on the other hand, the electric energy is supplied to a graphite electrode to electrolyze seawater to reduce the acidity of the seawater, thereby increasing the calcification rate of the corals and multi-directionally promoting the coral growth. The wave-powered floating box type coral undersea cultivation device facilitating the coral growth has the advantages of being novel in design and friendly to the environment and having very important economic value and ecological significance.