30 results about "Water matrix" patented technology

A system and method for enhancing the flux and separation properties of water filtration membranes by oxidizing raw or processed water constituents with direct photolysis of the water matrix by pulsed blackbody UV, yielding ozone and hydrogen peroxide, hydroxyl radicals and other short lived oxidizing species. The result thereof, causing precipitation of inorganic molecules or organically complexed minerals, partial or complete mineralization of organic molecules and the deactivation or destruction of microbes including: virus, bacteria and protozoa. The system and method comprises a pulsed blackbody, deep-UV reactor having at least one treatment chamber, the reactor having a conveying assembly to convey the water to be treated into the chamber; a filter assembly to screen the UV treated water; a caustic supply means for the post-treatment of water; a recovering assembly recovering the permeate at an outlet of the filtration means. The effect of such UV water treatment is multifaceted. One aspect is the reduction of the transmembrane pressure (TMP), another is the reduction of duration of backwash and caustic cleaning cycles. Also, the oxidation of iron and manganese to insoluble compounds, without the addition of oxidizing agents, does not harm the membranes. Iron and manganese turn into hydroxide crystals trapped by the filtration membrane and separated from the permeate. These effects integrate to enhance the water flux through the filter membrane.

The invention discloses an indoor artificial wetland water sample and substrate sample collector, which is composed of a sampling tube main body, a baffle plate and a sample hooking device. The sampling tube main body is provided with a sampling hole, and the inner surface of the sampling hole is provided with a rubber slot; The baffle is composed of an inserting plate, a handle and a connecting rod, and the inserting plate is used for inserting into the rubber slot; the sample filler hooking device is composed of a handle and a sampling hook. The sampling tube of the present invention is convenient to insert into the wetland for sampling and effectively prevents the sample from slipping and losing; the wall of the sampling tube is marked with a scale, which is convenient and accurate for grasping the sampling depth; the upper end of the sampling tube is provided with a handle, which is convenient for the operator to apply force; The slot is equipped with a rubber sealing device. When the baffle is inserted, the inside and outside of the sampling tube are completely isolated. When the baffle is pulled out, the sample can enter the tube through the sampling hole; the sampling hook can be inserted from the sampling tube to the sampling hole to move the outer packing into the sampling tube. Helps in sampling; the sampler is easy to use and easy to operate, and is completely suitable for indoor artificial wetland sampling environments.

The invention relates to an on-line analyzer for aquatic VOCs (Volatile Organic Chemicals) based on a purge and trap-gas chromatography principle, in particular to an instrument combined with functions of automatic sampling, purge and trap pretreatment and gas chromatography. After quantitative sampling of a water sample through an automatic sampling device, the water sample is purged through controlling purge gas, a water matrix is separated and trapped by a trap after the aquatic VOCs are purged; a flow path is switched through a switch valve, so that carrier gas of a gas chromatograph passes through the trap, the trap is instantly heated to analyze absorbed organic matters, and then the carrier gas carrying the analyzed organic matters is separated and analyzed after entering a gas chromatograph analysis module. Each module is synchronously controlled by a microprocessor of the on-line analyzer for the aquatic VOCs, control software synchronously has functions of instrument operation control, and data acquisition and processing, the uniform control is realized, and the delay and the function conflict are reduced. The on-line analyzer has the advantages of simple structure, simplicity in operation, and capability of synchronously realizing sampling, pretreatment and on-line analysis of the aquatic VOCs.

The invention relates to an ophthalmic gel, which is composed of a matrix, active ingredients of traditional Chinese medicine, auxiliary materials and water, the matrix is ​​hyaluronic acid and / or sodium hyaluronate, and the ophthalmic gel is prepared by the following method: Add appropriate amount of water to the water-soluble excipients, heat to dissolve, and filter to obtain a clear liquid; add the matrix to the above clear liquid, soak, let it stand for several hours, and then stir evenly; add active ingredients of traditional Chinese medicine to the mixture obtained in the above steps to make up Water to a specific content, stirred evenly, and packaged to obtain finished products; wherein, the matrix, active ingredients of traditional Chinese medicine, auxiliary materials and water have the following mass ratios, matrix: active ingredients of traditional Chinese medicine: auxiliary materials: water=0.05~10.0:0.1~ 40.0: 1-14: 50-98; the active ingredient of the traditional Chinese medicine is one of the following components: bear bile or its extract, pearl or its extract, Zijinlong extract. The ophthalmic gel can increase the residence time of the medicine in the eye and reduce the loss of the medicine.

The invention discloses a method for predicting the degradation rate of organic pollutants in an actual water body ultraviolet advanced oxidation process. The method of the invention comprises the following steps: (1) adding the probe into the solution of the water matrix substitute substance of different concentrations, degrading the probe by an ultraviolet advanced oxidation process, and measuring the degradation rate of the probe; taking the free radical reaction capacity of the water substrate substitute substance solution of different concentrations as the horizontal Coordinate, take the reciprocal of the probe degradation rate as the ordinate, and make a standard curve; (2) Add the probe to the actual water sample, measure the actual water probe degradation rate, and combine with the standard curve to obtain the actual water background matrix free radical reaction capacity; (3) According to the free radical reaction capacity of the actual water background matrix, combined with the secondary reaction rate constant of target pollutants and free radicals, the degradation rate of organic pollutants was obtained. The present invention has accurate prediction results, solves problems such as difficulty in transporting water samples, lack of advanced instruments on site, etc., and can carry out evaluation of the removal efficiency of pollutants in the advanced ultraviolet oxidation process.

The invention discloses a seedling method and particularly relates to a rapid seedling method for fruit tree hybrid seeds. The rapid seedling method includes after the fruits are collected, removing pulps and taking out seeds without shells, placing the seeds in culture dishes, pouring sterile water with 20-25 degrees in the culture dishes, and soaking the seeds in the sterile water within 24-36hs; removing seed coats, sterilizing the seeds without coats with 0.08%-0.12% potassium permanganate solution for 24-36secs, and placing the seeds waking up from dormancy in the container filled with the sterile water for seeding; seeding the seeds waking up from the dormancy in watered matrixes for culture in a phytotron; after the seeds grow the fifth or the sixth leaves, removing the seeds out of the phytotron and culturing the same under the indoor temperature for 2-3 days for water controlling, and then transplanting the seeds to feeding blocks or fields to grow. By the application of the rapid seedling method, seed development period is shortened, and emergence rate of hybrid seeds is increased.

The invention concerns a production process of a zinc enriched drinking water, also called final water product, which, starting from a water matrix comprising drinking water, comprises, a first step of: Measuring the pH of the water matrix (step A), and then, in one order or the other, the steps of: Acidifying the water matrix (step B) in order to get a final water product having a pH lower than 7, and Adding zinc (step C) in a concentration comprised between 0.8 mg / l et 5 mg / l, so that sedimentation of zinc in the final water product is lower than 10% of soluble zinc over a period of 12 months at a maximum temperature of 40° C. The invention also concerns a zinc enriched drinking water composition and packaged zinc enriched drinking water.