41 results about "Particulate organic matter" patented technology

The invention relates to a pretreatment method for increasing the yield of excess sludge anaerobic digestion methane. Firstly, calcium peroxide is added into remaining concentrated sludge of a sewage treatment factory, and the addition amount of calcium peroxide accounts for 5-20% of the mass of volatile suspended solid in the remaining sludge; then, microwave radiation is carried out, the mixture is placed in an anaercbic digestor for anaerobic digestion at the temperature of 30-40 DEG C at the stirring speed of 100-200 rpm, and anaerobic digestion time is about 16 days. Results show that the calcium peroxide / microwave combined pretreatment technology can promote dissolving of particulate organic matter, increase the yield of the sludge anaerobic digestion methane and improve dewaterability of sludge after anaerobic digestion. The method is easy to operate, moderate in reaction condition and good in economic benefit and social benefit and is used for recycling, harmlessness and reduction of the remaining concentrated sludge of the sewage treatment factory.

The invention belongs to the technical field of agricultural production, and discloses a method for continuously extracting different organic components in soil. The method comprises the step of continuously extracting particulate organic matters (POM), particulate black charcoal (POM-BC), humic acid (HA), fulvic acid (FA), easily extractable glomalin-related soil protein (EE-GRSP), hard extractable glomalin-related soil protein (HE-GRSP), sodium citrate easily extractable dissolved organic matters (EE-DOC), sodium citrate hard extractable dissolved organic matters (HE-DOC), residual organic matters (Residual) and bound black charcoal (B-BC). The method mainly comprises the following steps of (1) collecting and pretreating a soil sample; (2) preparing a reagent; (3) continuously extracting the different organic components; (4) measuring carbon content of the extracted organic components; (5) calculating the carbon content of the different organic components. The method disclosed by the invention has the advantages that the different organic components are continuously extracted and separated out, the problems that only one organic component can be extracted every time and the matters of the extracted different organic components are overlapped by utilization of the traditional method are solved, and meanwhile the extraction rate of the organic matters in the soil is improved.

The invention discloses a simple stereoscopic sea cucumber hanging breeding facility and a breeding method which are suitable for shallow sea breeding areas or deep ponds. The breeding facility comprises a plank floating bridge, foam floats, a breeding mesh cage, a lining net, a spare mesh cage and dropping stones. The breeding mesh cage is hung on the floating bridge through hooks. The lining net is fixed into the breeding mesh cage in an inclined mode and faces sunlight. The spare mesh cage is placed on the floating bridge to be exposed in the sunlight for standby use. The dropping stones are hung at the four corners of the breeding mesh cage. According to the stereoscopic sea cucumber hanging breeding facility and the breeding method, water-layer particulate organic matters and water-layer sediment intercepted by the breeding mesh cage are fully used for providing natural high-quality bait for sea cucumbers, good environment is provided for the sea cucumbers, other living bodies such as prawns can be bred in a mixed mode at the same time, and therefore a stereoscopic ecological breeding mode is realized.

The invention relates to an online enrichment and desorption device of particulate organic matters and an application method thereof. The online enrichment and desorption device of particulate organicmatters comprises a thermal desorption unit, a high-temperature-resistant desorption unit, a capillary capture column, a semiconductor cold trap, an electronic tee valve, a gas chromatographic columnand other components. Particulate organic matters pass through the thermal desorption unit; the particulate organic matters are then captured successively by the capillary capture column of normal temperature and the semiconductor cold trap before emptying; the captured organic matters are reversely fed via valve switching; low-boiling-point components trapped by the semiconductor cold trap are released first by thermal desorption; high-boiling-point components trapped by the capillary capture column are heated with a gas chromatographic column heater program and are gradually desorbed beforeentering the gas chromatographic column for separation and detection. The emptying design helps increase thermal desorption flow, reduce thermal desorption time, improve thermal desorption efficiencyand prevents accumulative pollution of a chromatographic column and detection unit due to direct entry of the thermal desorption sample in the chromatographic column; the advantage that high-boiling-point components are trapped by capillaries of normal temperature and low-boiling-point components are trapped by the cold trap at low temperature is utilized such that the low-boiling-point and high-boiling-point organic matters are trapped stagewise; organic matter trapping and releasing efficiency is improved.

The invention discloses a device and a method for removing granular organic matters and producing NO2<->-N based on hydrolytic acidification coupling short-cut denitrification technology, and belongsto the field of biological sewage treatment. The device comprises a granular organic matter wastewater tank, a NO3<->-N wastewater tank, a single-stage hydrolytic acidification coupling short-cut denitrification SBR reactor, and a water outlet tank. The method comprises the following steps of: taking sewage plant residual sludge as seed sludge, hydrolyzing and acidifying granular organic matters into micromolecular organic matters by hydrolytic acidification bacteria in the seed sludge of an anaerobic section; reducing NO3<->-N into NO2<->-N with denitrifying bacteria in seed sludge from an anoxic section by taking generated small molecular organic matters as electron donors. Through gradual increase of inlet water organic matters and enrichment culture of NO3<->-N load reinforced hydrolytic acidification bacteria and short-cut denitrification bacteria, removal of granular organic matters and production of NO2<->-N is finally realized. According to the method, an external carbon sourceis not needed, the control is simple, and the technical problems that granular organic matters are not beneficial to stable accumulation of NO2<->-N in the denitrification process and enrichment of short-cut denitrification strains are solved.

The invention relates to an in-situ reducing device of initial rainwater pollutants of urban landscape river. A conventional rainwater port is communicated with an overflow distributing well which is communicated with a rainwater retaining chamber through a water pipe and is provided with an adjustable overflow weir, and suspended organism filling balls are placed in the rainwater retaining chamber. The invention overcomes the defects of reconstruction of urban road surfaces, huge project cost, low possibility of general implementation, limitation of actual spaces of a river way and a bankside on constructing a large-capacity storage pond, processing requirement of a sewage processing plant after raining, large project investment and the like existing in two kinds of methods of source reduction, in-place processing and collection and storage processing. The invention effectively retains granular organic matter at the initial period of raining, reduces the input quantity of the rainwater for the river, and can remove granular organic matter of more than 70% and biologically degrade so as to lower the pollution degree of the initial rainwater on the water quality and the ecology of the urban landscape river. The invention has the advantages of simple structure, reliable effect and convenient maintenance.

The invention discloses a system and method for mainstream short-cut nitrification denitrification / anaerobic ammoxidation, and belongs to the technical field of water treatment. The method comprises the following steps: carrying out chemical flocculation precipitation on sewage to capture particulate organic matters, colloidal organic matters and phosphorus; and then carrying out anoxic hydrolysisacidification, and decomposing organic matters in wastewater into volatile fatty acids and ammonia nitrogen. A multi-cycle SBR tank is used in the next stage, through multi-step water feeding, multi-step A / O reaction and enhanced denitrification / anaerobic ammoxidation, nitrite nitrogen is removed timely, nitrifying bacteria (NOB) substrate lack is formed, NOB bacteria are eliminated in assistanceof dissolved oxygen on-line control and short sludge age, and stable mainstream short-cut nitrification denitrification / anaerobic ammoxidation denitrification is realized. The short-cut nitrificationrate of the multi-cycle SBR tank is 80% or above, and the removal rates of COD, ammonia nitrogen and TN are 87%, 98% and 88% respectively. The method is simple in control strategy and strong in automation, and has the advantages of low energy consumption, less greenhouse gas emission, good effluent quality, low sludge yield and the like.

The invention discloses a portable manual suction filter for collecting particulate organic matters in waterbodies. The portable manual suction filter comprises a sampling device, a sample discharging device and a connecting barrel, a glass fiber filter membrane is arranged between the sampling device and the sample discharging device, and the sample feeding device and the sample discharging device are screwed into the connecting barrel in a threaded manner. The portable manual suction filter can be used for water bodies such as rivers, lakes, reservoirs and ponds, and is convenient to carry, easy to operate and capable of collecting different particle sizes of the particulate organic matters in the water bodies by arranging different pore sizes of glass fiber filters (GF / C or GF / F).

The invention relates to a separation and quantification method of different occurrence-mode organic matter in hydrocarbon source rock. The separation and quantification method comprises the followingsteps that hydrocarbon source rock samples are ground and dried, and parts of the samples are weighed for organic carbon testing; the hydrocarbon source rock samples are subjected to soxhlet extraction through an organic solvent, and parts of extracted residue are weighed for organic carbon testing; the extracted residue is oxidized, and parts of the oxidized residue are weighed for organic carbon testing; and the mass fraction, accounting for the total organic carbon in the rock, of organic carbon separated in each step is calculated through a difference method, and quantification of free-state organic matter, mineral complex state organic matter and particulate organic matter is completed. The separation and quantification method adopts the continuous processing process of organic solvent extraction and sodium persulfate oxidation, thus the free-state organic matter and the mineral complex state organic matter in the hydrocarbon source rock are effectively removed, the contents of the free-state organic matter, the mineral complex state organic matter and the particulate organic matter in the hydrocarbon source rock are quantitatively analyzed, the efficiency is high, the cost is low, and data are accurate.

The invention relates to an artificial optimized culture method for sea squirts, microalgae and stichopus japonicus. The artificial optimized culture method for sea squirts, microalgae and stichopus japonicus is a bio-remediation technology for realizing self-purification of a culture water body and a sustainable marine product culturing method by utilizing a biological mutual benefit mechanism of a seawater polyculture system. The bait microalgae are inoculated in culture seawater; and the stichopus japonicus and the sea squirts are put into the culture water body with increased microalgae biomass. The inorganic nutritive salt in the seawater is converted into the microalgae biomass through the bioconversion of the microalgae so as to provide abundant bait for cultured organisms and simultaneously increase the concentration of dissolved oxygen in the water body. The sea squirts filtrate a large amount of sea water to remove grains and excess microalgae in the water body and settle a large quantity of aqueous layer particulate organic matters into a substrate in the form of feces and false faces. The demersal stichopus japonicus with a detritus food habit ingest the organic debris, benthic diatoms and microorganisms in the substrate so as to improve a substrate environment and reduce water body pollution. The artificial optimized culture method for sea squirts, microalgae and stichopus japonicus utilizes the polyculture system to promote the culture proliferation of the stichopus japonicus, carry out the self-purification and remediation of the culture water body, and realize the sustainable development of stichopus japonicus culture industry.

The invention discloses a preparation method of a seedling cultivation matrix specially used for organic rice. The matrix is composed of an organic fermentation material formed after biological fermentation treatment of an Agaricus bisporus and sward mixture, cassava residues, straw powder and a fruit tree branch particle organic material, wet coconut dust, charred husk particles, turf and vermiculite. The method comprises the following steps: airing the Agaricus bisporus and sward mixture, and crushing the aired mixture; adjusting the water content of the cassava resides to 55-65%, carrying out biological fermentation treatment on 35% of the Agaricus bisporus and sward mixture, 35% of the cassava residues, 15% of the straw powder and 15% of the fruit tree branch particle organic material, airing obtained material, and crushing the aired material to form the organic fermentation material with the particle size of 5mm or below; and fully stirring and mixing the organic fermentation material, the wet coconut dust, the charred husks, the turf and vermiculite, bagging the obtained mixture, weighing the bagged mixture, and packaging and warehousing the mixture. The matrix adopting organic wastes as a raw material contains comprehensive nutrients; and the matrix adopting effective microbial fermentation has no pest diseases or worm eggs, has an especially good application effect, is very suitable for cultivating organic rice seedlings, can promote vigorous growth of the seedlings, and can be widely promoted and applied throughout the country.

A method and device that comminutes particulate organic substances in suspensions of microorganisms in mediums such as wastewaters or sludges of biological sewage treatment plants, whereby the organic substances are subjected to inertial forces in an active chamber as a result of short-term acceleration, immediately followed by deceleration of a carrier medium flowing in a closed flow channel. To generate these inertial forces, the carrier medium is evaporated and subsequently condensed in the active chamber, whereby this change in the carrier medium's aggregate state is achieved by changing the flow speed. Because of the enormous increase of the liquid phase volume upon its transition into the vapor state, the flow speed of the medium concomitantly increases. As a result, extreme acceleration forces are exerted on the loading of the liquid phase, which immediately after condensation of the vapor into the liquid phase revert back into deceleration forces.

The invention relates to a method of synthesizing artificial soil on the basis of algal mud. The artificial soil is prepared from the following ingredients including the algal mud, fly ash, straws, pH regulators, buffer agents, chelates and microbial preparations, wherein the mass percentage of the algal mud is 5 to 10 percent; the mass percentage of the fly ash is 80 to 90 percent; the mass percentage of the straws is 5 to 10 percent; 0.01 to 1000g of pH regulators, 0.01 to 1000g of buffer agents, 0.01 to 500g of chelates and 0.05 to 500g of microbial preparations are added in one ton of the mixture of the algal mud, the fly ash and the straws. The method overcomes the defects of low blue-green algae dewatering concentration efficiency, complicated detoxification process, low resource utilization rate and the like. The fly ash and the blue-green algae are mixed and ground, so that the moisture of the blue-green algae can fast enter the fly ash; then, open air aging and stabilization are performed. A great number of organic matter in the blue-green algae take a humification effect; the formation of artificial soil aggregate structure is promoted; partial organic matter takes a mineralization effect; various nutrients can be decomposed and released; the method of using the algal mud to produce the artificial soil has better economical performance and high operability.

The invention relates to a two-stage hydrolytic acidification short-cut denitrification anaerobic ammonia oxidation process for removing nitrogen by taking a granular organic matter as a carbon source, and belongs to the field of biological sewage treatment. The whole device comprises a water inlet tank, a sequencing batch hydrolytic acidification in-situ short-cut denitrification reactor, a middle water tank, a granular organic matter storage tank, a sequencing batch anaerobic ammonia oxidation reactor and a PLC automatic control system. The whole device adopts a two-stage hydrolytic acidification short-cut denitrification and post-anaerobic ammonia oxidation process, and is matched with a PLC automatic control system, so that the intelligence and the flexibility of the operation of the whole process are improved, and efficient removal of nitrogen is realized.

A water feeding and jetting mixed device for a fish pond for aquaculture comprises a pressure water inlet pipe, a diffusion pipe, a mixing pipe and a water outlet pipe which are arranged in succession from upper to bottom; the pressure water inlet pipe, the diffusion pipe and the mixing pipe are horizontally arranged; the water outlet pipe is horizontally arranged; the diffusion pipe is a gradual enlargement pipe with two gradual enlargement sections; an air inlet hole is formed in the cone-shaped circumferential surface of the first gradual enlargement section; the internal diameter of the mixing pipe is D4; the lower end of the pressure water inlet pipe is inserted into the upper end of the diffusion pipe along the axial direction; the upper end of the mixing pipe is inserted into a mixing area of the diffusion pipe along the axial direction; the water outlet pipe comprises three water outlet branch pipes which are arranged in upper layer water, middle layer water and lower layer water of the fish pound; the three water outlet branch pipes are communicated with the middle portion, the lower portion and the bottom of the mixing pipe. The water feeding and jetting mixed device has the advantages of being sufficient in oxygen dissolution, improving water flowing states of high density cultivation, promoting efficient discharging of particulate organic matters, effectively removing carbon dioxide accumulated through respiratory action of fishes in the high density cultivation, improving water quality in a cultivation pond, achieving an energy saving goal and being wide in applicability.

A method and device for comminuting particulate organic substances in suspensions of microorganisms in a carrier medium, particularly in wastewaters or sludges of biological sewage treatment plants, whereby the organic substances are subjected to inertial forces in an active chamber as a result of short-term acceleration, immediately followed by deceleration of a carrier medium flowing in a closed flow channel. To generate these inertial forces, the carrier medium is evaporated and subsequently condensed in the active chamber, whereby this change in the aggregate state of the carrier medium is achieved by changing the flow speed. As a consequence of the enormous increase of the volume in the liquid phase upon its transition into the vapor state, the flow speed of the medium increases to the same degree. As a result, extreme acceleration forces are exerted on the loading of the liquid phase, which immediately after condensation of the vapor into the liquid phase revert back into deceleration forces. By selecting an appropriate flow speed of the carrier medium in the active chamber, different treatment methods for the suspension can be chosen, ranging from the breaking up of large flakes to the destruction of thread-shaped bacteria all the way to complete cell disruption.

The invention discloses a method for measuring the food intake of deposit feeder small benthic animals, which adopts a food intake determination method based on water particle organic carbon content determination, because food of deposit feeder animals is ingested in the form of particle organic particles, digestion residues become suspended or sedimentary particle organic matters after being discharged out of the body, the organic carbon intake in a certain time period is calculated according to the quantity change of the granular organic carbon in the living environment; on the basis that the contents of nutritional ingredients such as organic carbon, protein, fat and energy in food are measured in advance, the food intake of the organic carbon is multiplied by the ratio of the contents of different nutritional ingredients in the food to the content of the organic carbon, so that the food intake of the different nutritional ingredients is obtained through conversion.

The invention discloses a multi-stage intercepting and purifying device for suspended particulate organic matter, and relates to the field of water environment research. The multi-stage intercepting and purifying device is mainly used for intercepting and purifying various fine particulate suspended solids in a river channel. According to the technical points, the multi-stage intercepting and purifying device includes an aquatic plant filtering device, an electric flocculation device and an ultrafiltration membrane pool. The multi-stage intercepting and purifying device for the fine particulate suspended solids is provided in view of deficiencies in the prior art, and the multi-stage intercepting and purifying device can solve the multi-stage processing problem of the fine particulate suspended solids of the river channel and rivers, and is simple in structure, convenient to operate and low in cost.

The invention discloses a mainstream short-range nitrification and denitrification / anammox system and method, belonging to the technical field of water treatment. Sewage undergoes chemical flocculation and precipitation to capture particulate organic matter, colloidal organic matter and phosphorus; followed by anaerobic hydrolysis and acidification, the organic matter in the wastewater is decomposed into volatile fatty acids and ammonia nitrogen. The next stage is the multi-cycle SBR pool. Through multi-step water inflow and multi-step A / O reaction, denitrification / anaerobic ammonium oxidation is strengthened, nitrite nitrogen is removed in time, and nitrifying bacteria (NOB) substrate deficiency is formed, supplemented by dissolution Oxygen online control and short sludge age eliminate NOB bacteria to achieve stable mainstream short-cut nitrification and denitrification / anammox denitrification. The short-cut nitrification rate of the multi-circulation SBR tank is above 80%, and the removal rates of COD, ammonia nitrogen and TN are 87%, 98% and 88% respectively. The method has the advantages of simple control strategy, strong automation, low energy consumption, less greenhouse gas emissions, good effluent quality, and low sludge output.

The invention relates to an efficient sewage treatment process and device based on electron current directional adjustment and control and belongs to the technical field of sewage (wastewater) treatment. In the process, an anaerobic fermentation electron generation chamber, a heterotrophic-autotrophic denitrification chamber and an aerobic membrane separation chamber are included. After low-concentration organic sewage enters the anaerobic fermentation electron generation chamber, particulate organic matter and part of dissolved organic matter are intercepted and adsorbed by filler and form an extracellular current under the action of microorganisms used in a follow-up autotrophic denitrification process. Meanwhile, by the utilization of a microfiltration / ultrafiltration membrane separation process, the load in the sewage treatment process is increased, solid-liquid separation efficiency is guaranteed, and outflow water quality meets high-standard sewage (wastewater) treatment reuse requirements. According to the process, the removal effect of nutrient elements including nitrogen is intensified by adjusting the flowing direction of the electron current in the organic sewage treatment process, the system sludge yield is lowered, and membrane filtration pollution is relieved. Through the process, the low-concentration organic sewage can be treated efficiently at normal temperature (higher than 15 DEG C), and running energy consumption for sewage treatment is lowered remarkably.

The invention discloses an organic waste gas treatment device. The organic waste gas treatment device comprises a shell and a dissolving liquid box, wherein the interior of the shell is sequentially divided into a combustion cavity, a filter bag cavity and a dissolving cavity through a first partition plate and a second partition plate; two flame nozzles for spraying flame are arranged in the combustion cavity; a plurality of filter bags for intercepting and filtering granular organic matters are arranged in the filter bag cavity; the dissolving liquid box is arranged in the dissolving cavity; and the interior of the combustion cavity is divided into a first chamber, a second chamber and a third chamber through a first filter screen and a second filter screen. The organic waste gas treatment device can effectively solve the problem that organic waste gas containing different pollutants can be effectively treated.

The invention belongs to the technical field of seawater culture, and especially relates to a processing system used for eliminating inorganic nitrogen and phosphor in culture water body. The processing system comprises a biomembrane reactor, a middle tank, an algae tank, and a water outlet tank which are connected successively; in the biomembrane reactor, biomembrane attached onto a filling material is adopted to remove dissolved ammonia nitrogen and nitrite nitrogen in water body, and reduce organic matter content; water in the biomembrane reactor flows into the middle tank through overflowing; in the middle tank, suspension of filter feeding shellfish is adopted to filter particular organic matters; the algae tank is communicated with the middle tank; seawater algae used for absorbing dissolved nitrogen and phosphor nutritive salts in water body is arranged in the algae tank; water in the algae tank flows into the water outlet tank through overflowing; and the water outlet tank is provided with a water discharge pipe. The processing system is high in automation degree and controllability, relatively small in occupied land area, high in culture waste water processing amount in unit time, and is capable of eliminating inorganic nitrogen and phosphor completely.

The invention discloses a multi-excitation-wavelength spectrometer type fluorescence laser radar system which comprises a multi-wavelength laser emission system, a signal frequency division system anda data storage and display system. According to the invention, a plurality of wavelength lasers are simultaneously emitted into the atmosphere to alternately excite organic matters in atmospheric particulates and obtain fluorescence spectra, the spectra obtained by exciting the same organic matter by the lasers with different wavelengths are different, and the characteristics of components, concentrations and the like of the organic matters in the atmospheric particulates are effectively explored by analyzing each excitation and emission fluorescence spectrum matrix diagram. The continuous observation can be achieved, manual sampling is not needed, data reliability, accuracy and real-time performance are improved, a basis is provided for meteorological environmental protection departmentsand the like to master atmospheric particulate organic matter changes in time, it is convenient for the meteorological environmental protection departments and the like to find abnormal changes in time and take effective measures for response, and the simultaneous detection of multiple instruments is achieved; the circulation condition of atmospheric particulate organic matters can be mastered, and possibility is provided for early warning.

The invention provides a single crystal wafer cleaning method, which comprises the steps of (1) spraying deionized water or an organic solvent to the surface of a rotating wafer so as to pre-wet the surface of the wafer; (2) spraying a cleaning solution to the surface of the rotating wafer to remove various pollutants such as particles, organic matters and metal impurities; (3) spraying deionizedwater to the surface of the rotating wafer so as to rinse the surface of the wafer; and (4) spraying high-purity nitrogen to the surface of the rotating wafer so as to dry the surface of the wafer. According to the single crystal wafer cleaning method capable of reducing particle pollution, pre-infiltration of deionized water or an organic solvent is added before cleaning of the cleaning solution,the wettability of the cleaning solution and the surface of the wafer is improved, and the flow velocity of high-purity nitrogen sprayed out during rotary drying is controlled to reduce the negativepressure effect of a central area of the wafer, so that the adsorption of particle pollutants on the surface of the wafer is reduced, and the yield and the reliability of products are improved.

The invention relates to the technical field of circuit boards, anddiscloses a cleaning method of an integrated circuit board. Firstly, compressed air is used for blowing away dust adhering to the surface of the integrated circuit board, and then the surface of the integrated circuit can be fully cleaned in the subsequent cleaning procedure; the integrated circuit board is soaked in a first cleaning solution for ultrasonic cleaning, wherein the first cleaning solution comprises chloroform and alcohol; then the integrated circuit board is washed with first pure water, then the integrated circuit board is blow-dried with compressed air, then the integrated circuit board is subjected to spray cleaning with a second cleaning solution, wherein the second cleaning solution comprises sulfuric acid, hydrogen peroxide and water; and finally, the integrated circuit board is washed with second pure water and then dried, so that the cleaned integrated circuit board is obtained, pollutants such asparticles, organic matter and metal on the surface of the integrated circuit board are removed, and the surface cleanliness of the integrated circuit board is ensured.

The invention discloses a method for quantitatively measuring the spatial structure of soil particulate organic matters. According to the method, the particulate organic matters in the soil are extracted by means of wet sieving, classification and density extraction; with the micro-CT technology, image scanning is carried out on the particulate organic matters; and artifact removing, threshold calculation, image segmentation, and three-dimensional reconstruction are carried out on the scanned image successively, thereby measuring the soil mechanical morphological characteristics, organic matter quantity, volume ratio, volume distribution, pore size distribution quantitatively. With first utilization of the micro-CT technology, the spatial structure characteristics of soil particulate organic matters are measured quantitatively; and thus the foundation is laid for the deep study of the soil science, especially the soil organic matters.

The invention discloses a hydrocarbon source rock distribution prediction method and system, relates to the technical field of oil and gas geological exploration, and aims at solving the problems that an existing prediction method is high in cost and not suitable for a new exploration area and a few-well exploration area. The prediction method provided by the invention comprises the following steps: firstly, obtaining a geological background of a target research area to determine an experiment condition; and carrying out a delta deposition system organic matter deposition simulation experiment on the basis of experiment conditions to obtain a sedimentary body. Finally, the sedimentary body is processed, a hydrocarbon source rock distribution prediction model is established, hydrocarbon source rock distribution is determined through the hydrocarbon source rock distribution prediction model, then the deposition process of particulate organic matter in the delta sedimentary system is simulated from the forward modeling angle, the aggregation rule of hydrocarbon source rocks is summarized, the cost of hydrocarbon source rock distribution prediction is greatly reduced, and the prediction accuracy is improved. And the method has a wide application prospect especially for a new exploratory area with a small number of drilled wells. The prediction method and system provided by the invention are used for predicting the distribution of the hydrocarbon source rocks.

The invention provides a method for simultaneously detecting particulate organics and dissolved organics in water body, comprising the following steps: firstly, collecting water body samples and setting an excitation wavelength, an emission wavelength and a scanning speed of a fluorescence spectrophotometer; secondly, determining excitation-emission three-dimensional fluorescence spectrums of all samples and ultrapure water; thirdly, subjecting the three-dimensional fluorescence spectrums of the samples to raman scattering correction by using the three-dimensional fluorescence spectrum of the ultrapure water; fourthly, exporting a data matrix of the three-dimensional fluorescence spectrums obtained by the raman scattering correction for data conversion; fifthly, subjecting data obtained after the data conversion of all samples to principal component analysis; sixthly, identifying components of organics in water by utilizing a factor score matrix graph which is drawn from a factor score coefficient matrix through conversion; seventhly, calculating relative content of the particulate organics and the dissolved organics in the water body based on principal component analyzing results. The method provided by the invention has the advantages of little demand for samples, high detection sensitivity, no damage to sample structure and environmental protection.

A water feeding and jetting mixed device for a fish pond for aquaculture comprises a pressure water inlet pipe, a diffusion pipe, a mixing pipe and a water outlet pipe which are arranged in succession from upper to bottom; the pressure water inlet pipe, the diffusion pipe and the mixing pipe are horizontally arranged; the water outlet pipe is horizontally arranged; the diffusion pipe is a gradual enlargement pipe with two gradual enlargement sections; an air inlet hole is formed in the cone-shaped circumferential surface of the first gradual enlargement section; the internal diameter of the mixing pipe is D4; the lower end of the pressure water inlet pipe is inserted into the upper end of the diffusion pipe along the axial direction; the upper end of the mixing pipe is inserted into a mixing area of the diffusion pipe along the axial direction; the water outlet pipe comprises three water outlet branch pipes which are arranged in upper layer water, middle layer water and lower layer water of the fish pound; the three water outlet branch pipes are communicated with the middle portion, the lower portion and the bottom of the mixing pipe. The water feeding and jetting mixed device has the advantages of being sufficient in oxygen dissolution, improving water flowing states of high density cultivation, promoting efficient discharging of particulate organic matters, effectively removing carbon dioxide accumulated through respiratory action of fishes in the high density cultivation, improving water quality in a cultivation pond, achieving an energy saving goal and being wide in applicability.