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406 results about "Water color" patented technology

Analysis method of remote sensing inversion of water color parameters of inland class II water

InactiveCN105158172AHigh precisionRegionally applicableColor/spectral properties measurementsRemote sensing reflectancePhytoplankton absorption
The invention discloses an analysis method of remote sensing inversion of water color parameters of inland class II water. According to the method, inherent optical quantity of the class II water is inverted with an improved QAA (quasi-analytical algorithm), and concentration inversion of the water color parameters such as chlorophyll a and suspended matters is realized based on the inverted inherent optical quantity of the class II water. The method comprises specific steps as follows: (1), data of remote sensing reflectance above the surface of the water is input, parameter inversion of the inherent optical quantity of the water is realized based on the improved QAA, and absorption coefficients and scattering coefficients of the water and absorption coefficients of phytoplankton are acquired; (2), concentration data of the chlorophyll a and concentration data of the suspended matters of the water at a sampling point are input, a chlorophyll a concentration quantitative inversion model is established according to the concentration data of chlorophyll a and the absorption coefficients of the phytoplankton, and a suspended matter concentration quantitative inversion model is established according to the concentration data of the suspended matters and the absorption coefficients of the water after removal of pure water; (3), hyperspectral data finishing atmospheric correction are input, and concentration inversion of the water color parameters of the inland class II water in a monitoring area is realized according to the step (1) and the step (2).
Owner:中国城市科学研究会

Aqueous anti-doodling paint and preparation method thereof

The invention discloses an aqueous anti-doodling paint, which consists of antifouling functional materials, assistants, glass powder filling and water, wherein the antifouling functional materials comprise pure acrylic ester emulsion, wax emulsion and fluorine-type assistant; and the assistants comprise dispersant, wetting agent, film-forming assistant, anti-freezing agent, defoaming agent, thickening agent, mildew-proof agent and preservative. The preparation method of the invention comprises steps of premixing, grinding and dispersing, emulsion adding, assistant adding, packing and the like. The aqueous anti-doodling paint has good antifouling and anti-doodling functions, wherein the VOC content is 52 to 65 g/L, the content of benzene series substance is less than 300 mg/kg, and the contents are far below the index values of volatile organic compounds of solvent products; and the aqueous anti-doodling paint is suitable for indoor space. Moreover, the paint film is compact; meanwhile the paint has the capacities of resisting seepage and reducing the adhesion of pollutants; and particularly aiming at the substances such as children water color pens, crayons, color pencils, ball pens, ink, coffee, tomato sauce, tea juice, shoe print and the like, the pollutants can be easily scrubbed.
Owner:四川嘉宝莉涂料有限公司

Antibacterial water color ink and method for preparing same

The invention relates to an antibacterial water color ink for printed matters for packaging children products and a method for preparing the same. The method comprises the following steps: firstly, according to the stated weight percentage, evenly mixing and stirring part of a water soluble resin dispersoid, an amine stabilizer, a latent solvent, a bactericidal agent, deionized water and an antifoaming agent, then adding a pigment into the mixture, and dispersing the pigment at a rotating speed of between 500 and 1,200 rpm to prepare an even water soluble dispersed slurry; and secondly, pumping the water soluble dispersed slurry obtained in the step A into a sand mill by a pump, grinding the slurry until the fineness is less than or equal to 10 microns, then adding the remaining water soluble resin dispersoid, a wetting agent and a rheology modifier to the slurry, stirring the mixture until the materials are dispersed and mixed evenly, and adjusting the viscosity to prepare the antibacterial water color ink. The antibacterial water color ink prepared by the method has good adhesive force to various base materials or textiles, and the varnish thereof is full and has certain flexibility; besides, the antibacterial water color ink has low smell and ultra-low VOC without PAE and heavy metals, and has good antibacterial and antifungus functions.
Owner:SHENZHEN OCEANPOWER NEW MATERIALS TECH

Method for treating aquaculture wastewater

InactiveCN101885554AReduce nitrogen and phosphorus contentSolve the problem of not being able to remove dissolved pollutants in water bodiesMultistage water/sewage treatmentBiological water/sewage treatmentAquatic animalSelf purification
The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.
Owner:上海楚水水产科技有限公司

Treatment method for biodiesel waste water

A treatment method for biodiesel waste water is carried out by the following steps: arranging self-clearing gratings at water pipe network end points under production equipment, and pumping waste water flowing across the gratings into a multi-stage oil separator; pumping the waste water in the water layer of the oil separator into an electrolytic tank; pumping the waste water from which oil is separated and removed through electrolysis into a micro-electrolysis reaction tank to carry out micro-electrolysis treatment; pumping the micro-electrolyzed waste water into a Fenton system to carry out reaction; feeding the waste water treated by multiple steps into a biochemical system; removing SS from discharged water by efficient shallow gas flotation micro-flocculation; sequentially filtering the waste water purified by micro-flocculation by a sand filter, active carbon and an ultra-filtration system; pumping various sludge produced in the waste water treatment process into a sludge concentration tank. The method has the advantages that oil is fully separated from the waste water, and no impurities are left; massive COD and PH are removed, the water feeding pressure of the biochemical system is reduced, waste water toxicity is reduced, biodegradability is improved, waste water color and smell are removed, and the quality of finally discharged clear water reaches domestic first-grade emission standards.
Owner:TANGSHAN JINLIHAI BIODIESEL

Water color exception object extraction method and system based on multi-spectral remote sensing image

The invention discloses a water color exception object extraction method and system based on multi-spectral remote sensing. The method comprises the steps of first acquiring the reflectance of a remote sensing image, then carrying out separation of land and water and cloud removing to obtain remote sensing reflectance of a water area portion, and conducting a principal component analysis of the multiband remote sensing reflectance to obtain a first principal component; afterwards, conducting a histogram analysis of a first principal component image, setting a threshold, segmenting the first principal component into a target component and a background component by using the threshold, segmenting the first principal component by using a threshold when the between-class variance of the target and background components is maximum and by setting the multiple, and obtaining a water color exception object portion; and conducting pixel statistics for the water color exception object portion, and obtaining the area and distribution of water color exception objects. The invention can retain the amount of multiband information to the greatest extent, thereby improving the accuracy; and meanwhile, acquires the segmenting threshold completely based on automatic calculation of a computer, thus greatly saving the information extracting time, and achieving simple and accurate extraction of distribution information of the water color exception objects.
Owner:SATELLITE ENVIRONMENT CENT MINIST OF ENVIRONMENTAL PROTECTION

Preservation method of peeled water chestnut

The invention relates to a preservation method of a peeled water chestnut. The method comprises the specific steps: washing a harvested water chestnut, peeling, and soaking in a deionized water color-protecting preservative containing vitamin C, citric acid and ascorbic acid; drying until the content of water is 80-90%; filling a packaging material with nitrogen or a mixed gas of the nitrogen and carbon dioxide; and performing cold storage. In the method, any composition materials harmful to a human body are not added in the deionized water color-protecting preservative, and drying and gas filling preservation technologies are adopted to realize the preservation. The defects that the peeled water chestnut is easy in brown stain, rot and deterioration in the prior art are avoided, the nutrition and the color and luster of the water chestnut are kept to the greatest extent, and the storage period of the peeled water chestnut is greatly prolonged; the peeled water chestnut treated by adopting the method is good in mouthfeel, color and shape, rich in nutrition, beneficial to digestive absorption and utilization by the human bodies, convenient to carry, and easy to store, can be stored for 45-60 days at the temperature being 1-4 DEG C and can particularly meet demands of people on the instant fresh water chestnut.
Owner:FARM PROD PROCESSING & NUCLEAR AGRI TECH INST HUBEI ACAD OF AGRI SCI

Method for preparing polyamide resin used for water color ink

InactiveCN101613472ASolve the hydrophilicityAddress water resistanceInksPolyesterCycloaddition
The invention provides a method for preparing polyamide resin used for water color ink, which comprises the following steps: firstly, obtaining hydroxypolyamide through the ring cleavage addition reaction between 1mol eurelon with 2000-4000 molecular weight and/or dibasic acid and/or estolide containing 5-36 carbon atoms and 1-1.3 mol of epoxy compound in a nitrogen atmosphere at the temperature of 90-140 DEG C and under the catalysis of tertiary amine or quaternary ammonium salt; secondly, obtaining hydroxyl polyesteramide through the ring cleavage addition reaction between the hydroxypolyamide obtained in the first step and polyester polyol in an inert organic solvent at the temperature of 50-80 DEG C and under the catalysis of protonic acid accounting for 1-3 percent of gross mass of the hydroxypolyamide and the polyester polyol, or Lewis acid; thirdly, obtaining daiamid through esterification reaction between the hydroxyl polyesteramide obtained in the second step and estolide in an inert organic solvent at the temperature of 80-130 DEG C and under the catalysis of toluenesulfonic acid or sulphuric acid, and then obtaining the polyamide resin used for water color ink after decompressing and distilling the inert organic solvent, neutralizing with alkaline matters and adding de-ionized water. The invention contains low VOC and has simple preparation technology.
Owner:JIANGSU QIANGLIN BIO ENERGY

Water pollution diffusion warning visualization method

The invention discloses a water pollution diffusion warning visualization method, comprising: drawing a curve graph of water monitoring data over time; modeling for a target water area; combining an electronic map with a river network modeling process; calculating pollutant degradation coefficient via a series reactor water quality model, monitoring spot positional information and real-time monitoring data; if abnormal data are monitored, determining a current pollution level and a corresponding warning color according to the pollutant concentration, calculating a gradient array between the current warning color and a normal water color, calculating a pollution diffusion distance via the water quality model, and traversing and retrieving, in conjunction with pollution source position and the acquired pollution diffusion distance, a pollution diffusion zone range from a target water area model, gradiently coloring a retrieved pollution diffusion path via the gradient array, and simulating to demonstrate a migration and degradation process of pollutants in a river. The method of the invention has the advantages that a water monitoring network can be visually modeled and the tendency of pollution diffusion can be predicted in real time.
Owner:XIAN JIAOTONG LIVERPOOL UNIV

Ocean remote sensing image water color and water temperature monitoring method based on compression sampling

The invention discloses an ocean remote sensing image water color and water temperature monitoring method based on compression sampling. The monitoring method comprises the following steps of: obtaining original remote sensing data of ocean water color or water temperature to be detected, and carrying out compression sampling, sparse transformation and image processing on the original remote sensing data to obtain a water color or water temperature data set; sequentially conducting denoising and reconstruction processing on the water color or water temperature data set through an SOM (self-organized mapping) algorithm to obtain a processed water color or water temperature data set; conducting denoising processing on the processed water color or water temperature data set and reconstructing missing image data by utilizing the continuous interpolation property; and outputting and displaying the reconstructed missing image data. The monitoring method utilizes the compression sampling principle for reducing the amount of processed data, and utilizes the advantages of nonlinear estimation of the SOM algorithm as well as linear estimation and continuous interpolation of an improved empirical orthogonal decomposition (EOF) algorithm and the like so as to improve the efficiency of reconstructing missing images, expand the scope of the reconstructed images, and enable the precision and efficiency of ocean remote sensing water color and water temperature monitoring to be high.
Owner:TIANJIN UNIV
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