52results about How to "High ecological security" patented technology

The invention discloses a method for repairing lead and zinc polluted soil by utilizing accumulator plants-ryegrass and pig manure. The method comprises the following steps of: mixing the pig manure with the lead and zinc polluted soil; planting the ryegrass; fully uniformly mixing the pig manure with surface layer polluted soil under the condition that the applied concentration of the pig manure is 20-80g/kg; absorbing lead and zinc in the lead and zinc polluted soil through the root parts of the ryegrass; transferring the lead and the zinc to the overground parts of the ryegrass; when the overground parts of the plants are mature and can be harvested, moving away the plants from the polluted soil so as to achieve the purpose of removing lead and zinc pollution from the soil. As the ryegrass is good in regeneration capability and high in growth speed and can be repeatedly harvested without complex management, the energy consumption is low, the operability is good, the ecological safety is high, the environmental physicochemical property cannot be destroyed, the secondary pollution cannot be caused, a soil structure cannot be destroyed and polluted, the fertility improvement capability cannot be influenced, and the repair expense is further reduced.

The invention belongs to the technical field of ecological restoration and particularly relates to a water body ecological restoration method. The water body ecological restoration method comprises the steps that the water surface is cleaned, then submerged plants, emergent aquatic plants and floating-leaved plants are planted, and aquatic animals are put in. According to the water body ecological restoration method, sludge at the water bottom is treated with a plant blanket in-situ coverage method, root systems of the emergent aquatic plants are fixed with pollution-free clay, and a putting-in type planting method is adopted for the floating-leaved plants and the emergent aquatic plants. The aqueous plants can provide an adhesion symbiotic space for microorganisms, and provide a food source for aqueous animals, fish and shellfish are put in when the aquatic plants grow stably, and a rapid and simple water body forest system is formed. By means of the water body ecological restoration method, the effects of fixing sludge at the water bottom, restoring the natural ecological environment and maintaining the water to be clear permanently can be achieved; meanwhile, a dwelling site can be provided for fish and birds, and certain river landscape can be formed.

The invention discloses a novel cryogenic soaping agent. The novel cryogenic soaping agent is characterized by comprising the following components in percentage by weight: 5-25% of laccase, 25-45% of persulfate, 15-35% of alkali, 15-25% of polyvinylpyrrolidone, 15-25% of sodium polyacrylate and 5-10% of sodium carboxymethyl cellulose. The novel cryogenic soaping agent is applied to a soaping process after reactive dyeing, and can effectively remove a flooding color, a paste material and an auxiliary agent on fabric at a relatively low temperature to improve the color brilliance, color fastness and cleanliness of the fabric.

The invention relates to a biological wall-breaking method for improving sludge dewatering performance, and belongs to the technical field of sludge treatment. According to the method, the phagocytosis characteristic that bdellovibrio can widely and effectively decompose Gram-negative bacteria is sufficiently utilized, bdellovibrio is combined with other microorganisms to prepare bdellovibrio complex microbial inoculants which are applied to the treatment process of excess sludge of the biological treatment process of a municipal wastewater treatment plant so that the dewatering performance of treated sludge can be improved by 30% or higher after subsequent plate frame press filtering or centrifugal dewatering or other physical treatment, and therefore the sludge reduction efficiency is improved. The method treats remaining sludge of the municipal wastewater biological treatment process, is little in device investment, easy to operate, safe, free of pollution and low in energy consumption, and has good economic benefits and environment benefits, and a new method for municipal sludge biological dewatering reduction treatment is developed.

The invention relates to a nitrogen controlling material prepared based on lake sediment, a preparation method and application thereof. The preparation method includes: collecting lake sediment as the raw material, conducting freeze drying, grinding and sieving, then carrying out high temperature roasting for certain time, and performing cooling so as to obtain the nitrogen controlling material. According to the invention, lake sediment is adopted as the raw material, and is subjected to heat treatment to prepare the nitrogen controlling material. The nitrogen controlling material comes from lake sediment, not only has low price, but also has high safety, has no ecological risk to lake water, also the high temperature roasted sediment has the characteristics of strong ammonia nitrogen adsorption capacity and weak desorption, thus solving the problems of high cost of ammonia nitrogen controlled release materials, poor ecological safety and limited ammonia nitrogen controlled release effect in the prior art.

Disclosed is a high-value permanent forest cultivation technology with functions of land utilization and land maintenance. According to the technology, the design and setting of 3 or more tree species of 6 types of various matching trees which contain soil fertility, can naturally improve fertility and are suitable for sites are adopted, and advanced breeding achievements and forest culture and management technologies are utilized for new technology survey design of land utilization and land maintenance, diameter-containing groups and other new indexes; existing forests are subjected to selective cutting; the tree species of 6 types are classified, selected and set; soil preparation for afforestation or interplanting is conducted; tending management is conducted; target trees are classified; thinning is conducted; regeneration under a selection system is conducted, and cultivated forests have forest sustained-yield management natural capabilities like natural forest land fertility improvement, natural seeding self-renewal development, rich biodiversity, and resistance to diseases, insect pests and natural disasters. With every 10-20 years as one management period, permanent forests are formed, wherein the permanent forests continuously have large-diameter timber precious and high-value output, crown canopies of mixed, uneven-aged, multi-layer and multi-tree-species towering trees permanently cover forest land, and the permanent forests have high economic, ecological, socioculture and landscape value. The problems that large-area abies holophylla pure forests in the southern regions have declined soil fertility and lower productivity are solved.

The invention discloses a bimetal wind wave resistance phosphorus locking material which is prepared by the method including the steps: granulating powdery dolomite attapulgite clay and then performing high-temperature heat treatment to obtain a semi-finished product; soaking the semi-finished product into lanthanum chloride and aluminum chloride mixed solution for loading; performing low-temperature stabilizing treatment, cleaning and drying to obtain the bimetal wind wave resistance phosphorus locking material. The material is high in phosphorus fixation capacity and has remarkable wind waveresistance, and lanthanum and aluminum phosphorus fixation functions in pH (potential of hydrogen) value change of different water environments can be transformed, so that complete phosphorus fixation capacity is realized. The material is wide in material drawing, low in price, natural, non-toxic and high in ecological safety and has a wide application prospect.

The invention discloses a production method for achieving phosphorus immobilization capacity amplification of a clay mineral. The production method comprises the following steps: uniformly mixing thepowder of a clay mineral with a mixed solution of lanthanum chloride and polyaluminium chloride, and performing extrusion so as to obtain particles, wherein the solid-liquid mass ratio of the clay mineral to the mixed solution is greater than or equal to 6:1. The method has the characteristics of being simple and low in cost, the prepared phosphorus locking (immobilization) material is large in phosphorus immobilization capacity, simple in production process, free of secondary pollution and free of residual waste liquid. The prepared product can be used for controlling release of phosphorus inindustrial sewage, eutrophication water and polluted sediment, and the eutrophication degree of water can be effectively controlled and alleviated.

The invention relates to a method for removing nitrate of surface water, which organically combines a biofilter and an ecological gravel bed. In the biofilter, light ceramic particles are adopted as a filtering medium and used for attaching and growing denitrification microorganisms. Commercial methanol solution is added into inlet water of the biofilter to supplement a carbon source needed for denitrification; after the denitrification reaction is finished, outlet water of the biofilter enters the ecological gravel bed; gravel, zeolite and other natural filtering media are filled in the gravel bed; residual organisms in the outlet water of the biofilter is degraded through biological function; meanwhile, little ammonia and nitrogen contained in the inlet water is adsorbed through the physical adsorption of the natural zeolite; and purified water flows into a surface water body of a lake. The method can rapidly and efficiently remove the nitrate in the surface water body, improve the quality of water after being treated and reduce the probability of occurrence of algal blooms of the water body of a receiving lake.

The invention discloses an insecticide fertilizer capable of preventing and curing sugarcane brown streak, which is prepared from the following components: 30-40% of carbendazim, 30-40% of chlorothalonil, 3-5% of zinc sulfate, 1-3% of manganese sulfate, 3-5% of borax, 0.1-1% of ammonium molybdate and the balance of accessory ingredient, and the sum of all components is 100%. The insecticide fertilizer is prepared in the following steps of: adding smashed carbendazim and chlorothalonil into a mixer to be fully mixed to obtain mixed raw powder of bactericide; adding the smashed zinc sulfate, the manganese sulfate, the borax and the ammonium molybdate into a stirrer to be fully and evenly mixed to obtain the mixed powder of a micro fertilizer; and fully mixing the mixed raw powder of the bactericide and the mixed powder of the micro fertilizer with the accessory ingredient. According to the insecticide fertilizer disclosed by the invention, two types of bactericide can be compounded to improve the sterilization and treatment effect, the prevention and cure effect on the sugarcane brown streak is above 90%, and meanwhile, the diseased leaves of sugarcane can be accelerated to be restored and grown.

The invention provides a rural-harmful-liana integrated control method. The rural-harmful-liana integrated control method includes the steps of chemical controlling, wherein a chemical prepared from acomposition of picloram, 2,4-dichlorophenoxyacetic acid, bentazone and sulfometuron-methyl is sprayed onto vines and stems of rural harmful liana according to the applying quantity of 3,000 ml hm<-2>to 5,000 ml hm<-2>, and the leaf withered rate of the rural harmful liana is up to 50% or above; clearing, wherein the rural harmful liana obtained after chemical controlling is cleared to remove thevines and the stems of the rural harmful liana on the ground; ecological controlling, wherein mixed planting of quick-growing species of trees is conducted in a cleared region according to the plantspacing and the line spacing of 1.0 m to 2.0 m*1.5 m to 3.0 m, the trees are cultured for 1 year to 2 years, and growth and spreading of the rural harmful liana are gradually controlled. According tothe rural-harmful-liana integrated control method, the dose of the applied chemical is low, soil pollution is small, the rural harmful liana causing large-area harm can be efficiently killed, a laterecological system of a killing region can be maintained to be stable, and the ecological safety performance is high.

The invention discloses an SPEG biological migration small and micro water body treatment and restoration method and system. The method comprises the following steps: S1, carrying out substrate improvement, namely, carrying out desilting-free and in-situ reduction on the substrate of a water body; S2, constructing cascade aquatic plants, namely, forming an aquatic plant community through plant optimization and cascade construction; S3, constructing a three-dimensional ecological system, namely, putting aquatic animals and aquatic plants together to form a full-ecological food chain; and S4, laying an oxygen-enriched net, namely, laying a graphene oxygen-enriched net on the surface of the water body to realize water body oxygenation and targeted degradation of pollutants through natural illumination so as to construct an oxygen-enriched clear water body. According to the invention, microorganisms, aquatic plants and aquatic animal symbiotic systems play a synergistic role to form a complete water body purification enhancement system, so that 'long-term treatment and long-term clarification' of small and micro water bodies is realized, i.e., the water quality is obviously improved, the water transparency is improved, the nutritive salt is reduced, and the establishment and recovery of water body ecology are facilitated.

The invention provides a compound treatment agent for a landscape water body. The compound treatment agent comprises polyferric sulfate and purple parent rock. The compound treatment agent provided by the invention has the advantages of low cost, wide source and environmental friendliness, can be used for treating landscape water bodies different in pollution degree and realizes high purifying efficiency and good treatment effect, wherein the removal efficiency of nitrogen and phosphorus is high, and the removal rate of total nitrogen in the seriously-polluted landscape water body can reach 57.94% while the removal rate of total phosphorus can reach 83.63%; and the damaged ecological balance can be effectively restored so that the ecological system resumes virtuous cycle.

The invention provides a preparation method of a modified algicide. The preparation method of the modified algicide particularly includes the steps: (1) separately dissolving a certain mass of linoleic acid and a certain mass of artemisinin; (2) preparing N groups of linoleic acid and artemisinin solution with different ratios; (3) adding an emulsifier into the N groups of linoleic acid and artemisinin solution with the different ratios and emulsifying the N groups of linoleic acid and artemisinin solution; (4) adding sodium alginate, and mixing the materials uniformly to form N groups of mixed solution after emulsifying; (5) dropwise adding the mixed solution into CaCl2 solution to form modified algicide gel; (6) washing the modified algicide gel with distilled water, and drying the modified algicide gel to obtain the modified algicide. The preparation method of the modified algicide has the advantages that the prepared modified algicide can rapidly kill algae and continuously inhibitthe algae, secondary pollution is avoided, ecological safety is high, preparation flow is simple, the raw materials are easily obtained, and the cost is low.