37 results about "Environmental capacity" patented technology

An embodiment of the invention provides an airport delay prediction method and an airport delay prediction device, which belong to the technical field of air traffic volume management. The airport delay prediction method comprises the steps of: acquiring environmental data of a selected airport within selected time and an airport actual delay value matched with the environmental data at the selected time, wherein the environmental data includes environmental prediction data; acquiring daily average airport delay time within the selected time according to the airport actual delay value, and acquiring environmental capacity attenuation delay data of the environmental data based on the environmental data, the daily average airport delay time and an environmental capacity attenuation delay calculation rule; establishing an airport delay regression model by utilizing a regression analysis method; and acquiring an airport delay predicted value of the environmental prediction data based on the airport delay regression model, the environmental prediction data and the environmental capacity attenuation delay data of the environmental prediction data. Therefore, the problem that the influence of weather on flight operation cannot be obtained by a decision maker directly or more precisely is solved.

The invention discloses a closed-loop river water environment treatment system and method. Water body in an inflow reach is lifted to heights and ejected through a discharging tube under the dynamic effect provided by a power pump, the water body firstly is in thorough contact with air and in aeration, then is ecologically purified through wetlands, ecological floating beds or the combination of the wetlands and the ecological floating beds and then overflows to an outflow reach in the form of weir flow, accordingly the mobility of the closed-loop river is enhanced, and the dissolved oxygen level and water environmental capacity of the river are improved. The flow velocity of the river is controlled by a flow control valve, the electricity of the power pump and a desilting pump is provided by the complementation of a solar cell panel, a wind driven generator and a self-providing supply under the control of a power distribution unit, pollutants of sludge and the like at the bottom of a clarifier-tank are removed regularly through the desilting pump, and accordingly the water quality of the river is improved. The closed-loop river water environment treatment system and method are low in operation cost, simple in structure, economical in investment, convenient to operate and remarkable in economic and social benefit, and have research and popularization value under the background of fast urbanization development and risks of energy and water environment.

The invention discloses a single river channel inner overflow water environment treatment system and a method. Water in a water inlet river reach is lifted to a high place under the effect of power supplied by a power pump, and is ejected by a water outlet pipe; the water is fully contacted with air for aeration, is ecologically purified through a wetland or an ecological floating bed or a combination of the two, and flows back into the other end of a treatment river reach in a weir flow manner to form a planar ring current, so that the river fluidity is improved, the river dissolved oxygen level and the water environmental capacity are improved; the river flowing speed is controlled by a flow control valve; electric power of the power pump and removable pump is complemented and supplied by a solar panel, a wind driven generator and a self-prepared power supply under control of a power distribution unit; and such pollutants as sludge at the bottom of a purification pool are cleaned termly through the movable desilting pump to improve the river water quality. The single river channel inner overflow water environment treatment system and method are prominent in economic and social benefits, and is higher in research and popularization value under the background of rapid urbanization development and energy and water environment crisis.

The invention relates to a method for calculating a small watershed environmental capacity under the support of GIS (Geographic Information System) technology. The problem of imprecise calculation result which is caused by the influence of a non-point source or the difference of river inlet quantity of the non-point source of each control unit is solved. The method comprises the following steps of determining the watershed range of the control unit; using a hydrologic analysis module in an ArcGIS software and the method of combining practical river data positioned and corrected by GPS (Global Position System) to determine the land area catchment range of the control unit so as to obtain the control unit for land and water response; evaluating the water quality status; using statistic data of a pollution source and combining the practical study result of the pollution source to summarize the pollutant river inlet quantity of the pollutant of a point source and the non-point source according to the control units; reversely calculating the flow of each control cross section according to water balance; and calibrating, verifying and using water quality model parameters, and deducting the non-point source pollutant inlet of each control unit to obtain the available water environmental capacity. The river inlet quantities are calculated by considering the emission difference of non-point source pollutants in each control unit by using the GIS technology, and the watershed available environmental capacity is determined.

The invention relates to a cement-stabilizing broken stone used for highway subgrade, which comprises the following ingredients in weight percent: 4.0%-5.0% of clinker-free slag cement, 90%-92% of aggregate and the balance of water. The cement-stabilizing broken stone has the advantages of ensuring sufficient construction time, developing a new resource, lightening the environmental capacity, changing the waste materials into things of value, and obtaining remarkable economical benefits and social benefits.

The invention relates to a fertilization method for high-yield cultivation of winter wheat in fluvo-aquic soil areas in northern Henan, which takes into account environmental capacity, comprising the following steps: (1) crushing all summer corn stalks and returning them to the field; hm 2 , to contain P 2 o 5 Meter, base application of phosphorus fertilizer 90 ~ 180 kg / hm 2 , to contain K 2 O meter, basal application of potassium fertilizer 80 Kg / hm 2 , the plowing depth is 15~18cm; (2) Sowing wheat seeds in mechanical drills, the sowing depth is 3~5cm, and the plant density at the seedling stage is 2.6 to 2.8 million plants / hm 2 (3) In terms of N content, topdressing nitrogen fertilizer at the jointing stage is 76-125 kg / hm 2 After that, irrigate in time. The invention takes the wheat-soil-fertilizer system as the research object, fertilizes rationally, seeks high-yield wheat and environment-friendly chemical fertilizer input, scientifically prevents non-point source pollution, and promotes the coordinated development of agricultural production and environmental protection.

The invention discloses a Streptomyces albicans Actin-1, which can grow and reproduce with the mycelium of the pathogenic fungus of apple tree rot disease as nutrition, which is beneficial to the long-term colonization of the biocontrol bacteria on the rot spots of apple trees, and exerts long-term biological control At the same time, it induces itself to produce a variety of extracellular cell wall hydrolytic enzymes, disintegrates the pathogenic bacteria cells through the synergistic enzymolysis, and can produce strong antibacterial active substances. Various pathogenic bacteria such as Botrytis berenger have good antibacterial effect, the antibacterial rate is 76.08‑87.10%, and they have broad-spectrum antibacterial properties; this fungus is used as the main biocontrol fungus to prevent and control apple tree rot and other fruit and vegetable pathogenic bacteria have multiple advantages such as good control effect (100%), high efficiency, low recurrence rate (0), strong adaptability to the environment, strong stability, and not easy to produce drug resistance. It is of great significance to improve the effect, prevent the recurrence of pathogenic bacteria, and protect the environment.

The invention relates to an environment capacity-balanced high-yield cultivation fertilizing method for summer maize of the meadow soil district of the North Henan. The environment capacity-balanced high-yield cultivation fertilizing method includes steps that (1) smashing all the winter wheat straw and mulching, basically applying nitrogenous fertilizer according to 76-112 kg / hm2 weighted by N content, phosphatic fertilizer according to 100-200 kg / hm2 weighted by P2O5 content and potash fertilizer according to 120 kg / hm2 weighted by K2O content, wherein tillage is not needed; (2) interplanting at wheat ridges in 5 to 10 days before harvesting wheat or performing non-tillage seeding after harvesting the wheat, at latest finishing seeding on 10th June, mechanically sowing maize seeds in line, wherein the sowing depth is 3 to 5 centimeters, and the plant density is 55000-72000 plant / hm2 at the seedling stage; dressing nitrogenous fertilizer according to 76-112 kg / hm2 weighted by N content at the small bell-mouth stage, and watering timely; (4) after the maize bracts yellow for 7 to 10 days, harvesting when the milk lines disappear and the base black layers appear. The environment capacity-balanced high-yield cultivation fertilizing method for the summer maize of the meadow soil district of the North Henan uses maize-soil-fertilizer as a system, the fertilizing is reasonable, the fertilizer input seeks high maize yield and environment friendliness, the non-point source pollution is prevented scientifically, and the agricultural production and environment protection develop harmoniously.

The invention provides a method for setting a city initial rainwater interception standard. The city overflow pollution event reduction efficiency and the rainfall pollution reduction efficiency are counted, and high-efficiency areas of the city overflow pollution event reduction efficiency and the rainfall pollution reduction efficiency are found; and required initial rainwater interception rainfall is obtained and enabled to meet requirements of the high-efficiency areas, the flood prevention standard and the water environmental capacity. According to the city initial rainwater interception standard set with the method, initial rainwater with higher pollutant concentration can be intercepted effectively, so that pollution loads of rainfall runoffs to the water environment are substantially reduced.

The invention provides a novel method for estimating the environment capacity of fine particles and precursors of the fine particles. The novel method comprises steps as follows: obtaining the total atmosphere static capacity; obtaining the total conveying quantity of pollutants in the horizontal direction; obtaining the total quantity of dry deposition and the total quantity of wet deposition and obtaining the total quantity of deposition through summation; obtaining the total quantity of horizontal diffusion and the total quantity of vertical diffusion, and obtaining the total quantity of diffusion clearing through summation; obtaining the atmosphere dynamic capacity through summation of the total conveying quantity in the horizontal direction, the total quantity of deposition and the total quantity of diffusion clearing; performing summation on the total atmosphere static capacity and atmosphere dynamic capacity, performing correction and obtaining the corrected environment capacity of the pollutants. The method has the advantages as follows: the containing capability of the atmosphere to the pollutants is quantified through generation, conversion, extinction and other physical and chemical processes on the pollutants, and the environment capacity of the fine particles and the precursors of the fine particles has the characteristic of spatiotemporal dynamics; when the provided method is used for estimating the environment capacity of the atmospheric pollutants, the result more approaches the real monitoring value. The method further has the advantages of simple and rapid estimation process and small calculated quantity.

The invention involves heavy metal wastewater treatment, specifically a preparation method based on a modified adsorbent of peat. It uses natural peat as the main raw material and alkaline solution to neutralize peat,regulates the pH of mixed solution to 10-12, then adjust the solid-liquid ratio to 1:1-1:100 with alkali solution, stirs, stews, separates the sediments from the supernatant, dries and disintegrates said sediments then prepares the modified peat adsorbent. The adsorption capacity of original peat is improve d, while the stability and the anti-hostile environment environmental capacity are strengthened. And the preparation method using the invention can prepare humic acid as absorbent which further enhance the industrial added value of peat. The raw materials using by the invention is cheap, the source is extensive, the modification process is simple, the technology is stable and reliable; the adsorptive capacity of the prepared modified adsorbent is high and it has features of high efficiency, wide applicability, pollution-free and environmentally friendly,etc.

A method for technical evaluation on nutrient standards of lakes includes the following steps: 1) computing the maximal permissible pollutant quantity of the nutrients in the lakes according to the nutrient standards and functions of the lakes; 2) analyzing conditions of various pollution sources in lake basins systematically and quantity of the pollution sources entering the lakes, and building an optimized model and computing reduced cost for achieving the nutrient standards of the lakes on the condition that the lakes are under the limit of water environmental capacity; 3) evaluating primarily: controlling the proportion of the cost accounting in the gross national product by means of lake eutrophication, measuring affection on development of the local national economy from cost control by eutrophication and judging whether the eutrophication control achieves the preset control effect or not; and 4) secondarily evaluating the control standards failed in the primary evaluation. The method computes environmental capacity of the lakes and standard nutrient reduction by means of TMDL (total maximum daily load), controls the proportion of the cost accounting in the gross national product by means of lake eutrophication and measures affection on development of the local national economy from standard cost.

The invention relates to the field of land expropriation and resettlement planning for water conservancy and hydropower projects, in particular to a method for determining a production resettlement standard. Starting from the planning objectives, the method provides a rigorous planning thinking for the determination of resettlement planning standards of planting industry, and is a further refinement of the norms. Compared with the traditional method to determine the resettlement standard of planting industry, it has the following advantages: the change of agricultural land area leads to the change of agricultural income; the way to deal with income composition is determined according to the influencing factors of income composition; the influence of the gap of secondary and tertiary industry development level between original residential area and resettlement area on income. Considering the environmental capacity of the resettlement area, and under the condition that the configurable agricultural land can not meet the needs, the paper puts forward some measures to improve the income of rural migrants, such as rebuilding low-yield land and improving supporting facilities, and givesthe calculation formula to further ensure the realization of the resettlement planning objectives.

The invention discloses a bay environment estimation capacity method based on an ecological system dynamic comprehensive model. The method comprises the steps of collecting data, selecting environmentcapacity control demonstration points, setting an ocean environment water quality standard corresponding to the bay environment capacity, preparing data, simulating bay tidal current and the seawaterwater level, simulating bay COD emission distribution through a marine ecological model, simulating discharged COD diffusion and dissolving processes through a hydrodynamic model, establishing a CODsea area water quality response field, and calculating the largest allowable bay COD bay environment capacity. According to the method, the bay environment capacity is simulated by coupling COD discharge under the condition that submarine topography and tidal hydrodynamic characteristics are considered. The method takes the particularity of a bay terrain and change of tidal ebb and tide bulge intoconsideration, a control threshold is set according to specific bay environment supervision requirements for coupling simulation, and the method can be applied to bay environment supervision and operation more conveniently.