549 results about "Ph regulation" patented technology

The rice plant cultivation and strengthening agent and using method thereof relate to plant cultivation and strengthening agent and using method thereof, which solves the problems of less nutrition content, larger dosage, high production and transport cost, high labor intensity and complexity in fertilization, labor and time consumption in prior rice plant cultivation and strengthening agent. The rice plant cultivation and strengthening agent comprises nutrition elements, flavohumic acid, acid regulating agent, sequestering agent, water conservation agent, disinfectant, plant growth regulator, phlogiston, mould inhibitor, and additive. The using method is that: 1. the rice plant cultivation and strengthening agent is added with water in a proportion of 1 to 1000 times; 2. the solution is applied in the land with a proportion of 500g of the agent to 50m2 of the land; 3. the rice is planted when the agent is fully permeated in the soil. The rice plant cultivation and strengthening agent of the invention has high content of nutrition and the dosage of 10g in 1m2 land, thereby reducing production and transport cost and labor intensity in fertilization. The using of the rice plant cultivation and strengthening agent combines the fertilization, pH regulation, disinfection and first watering together, which is of time and labor saving.

The invention provides equipment and a method for treating nondegradable wastewater by utilizing catalytic oxidation of ozone. The equipment comprises a feeding system, an ozone catalytic reaction tower and a spray absorbing tower; the feeding system comprises a wastewater pH regulation device, a wastewater feeding pipeline, a hydrogen peroxide aqueous solution feeding pipeline, an ozone feeding pipeline and a pH regulator feeding pipeline; the wastewater pH regulation device is communicated with the wastewater feeding pipeline and the pH regulator feeding pipeline respectively; the ozone feeding pipeline is communicated with the wastewater feeding pipeline; the ozone catalytic reaction tower is communicated with the wastewater feeding pipeline and the hydrogen peroxide aqueous solution feeding pipeline respectively so that wastewater undergoes once catalytic reaction in the presence of a first catalyst to generate a liquid flow and an ozone tail gas flow which are subjected to initial treatment; and the spray absorbing tower is communicated with a catalytic reaction system, is used for spraying at least one part of the liquid flow which is subjected to the initial treatment, and is contacted with the ozone tail gas flow in the presence of a second catalyst to undergo second catalytic reaction.

The invention relates to a water soluble body lubricant with natural antibacterial components and with pH value consistence with pH value of vagina, which is characterized by comprising the following components in parts by weight: 10-30 parts of glycerol, 1-5 parts of 1,2-propylene glycol, 0.1-3 parts of natural antibacterial components, 1-10 parts of pH regulators, 0.1-2 parts of tackifiers, 0.1-2 parts of hyaluronic acid and 48-88 parts of deionized water. The water soluble body lubricant can be used as the lubricant for sexual life, the lubricant on condoms or the external bactericide for the female to prevent and treat bacterial infection in the vagina every day, is temperate in property, has pH value consistent with the vaginal environment, has broad spectrum antibacterial effect, does not change the vaginal flora structure or result in drug resistance of bacteria, does not contain chemical preservatives, is safer to use and has certain effects on moisturizing, protecting and repairing the private parts.

The method of loading automobile tail gas purifying catalyst onto honeycomb carrier features honeycomb iolite carrier through water washing pre-treatment, the catalyst slurry with modifying solution in 1-10 wt%, and the modifying solution comprising surfactant 1 portion, deionized water 9-99 portions as solvent, and acid 0.5-6.0 portions or alkali 7.5-9.5 portions for pH regulation. The catalyst has great once applied amount and less coating loss.

The invention provides a treatment process for oil-water well fractured and acidified flowback liquid. The operation steps of degritting, filtration, pH regulation, gas-liquid separation, centrifugation and the liker are carried out on the flowback liquid, the initial flowback liquid can be treated to be in the degree of entering an oilfield sewage system, impacts cannot be caused to an existing sewage system, deacidification, degritting and dewatering can also be carried out on subsequent flowback liquid, and the needs of entering a crude oil output system are met. Meanwhile, the invention further provides a treatment device for the oil-water well fractured and acidified flowback liquid. The process procedures are achieved, the structure of the device is compact, the treatment device is vehicle-mounted movable equipment, and transportation and mounting in different places are convenient.

The invention relates to an immersed vacuum membrane distillation plant and a sewage treatment technology using the same. The immersed vacuum membrane distillation plant comprises a raw water storage tank, a gas dissolving pump, a raw water heating water tank, a membrane distillation hydrophobic membrane module, a condenser, a vacuum buffer tank, a vacuum pump, a water producing tank, a valve, a measuring instrument, and an automatic controller. The sewage treatment technology is characterized in that: raw water is subject to pH regulation, microfiltration and other pretreatment, then the pretreated raw water enters into the raw water storage tank, the sewage in the raw water storage tank is subject to gas-water mixing through the gas dissolving pump, and then the gas-water mixture enters into the raw water storage tank for heating to a specific temperature, membrane distillation is carried out at the specific temperature, the produced water after membrane distillation is directly reused, and a little thick water is treated concentrately. According to the invention, the use of the plant in sewage treatment reduces the effect of concentration polarization and temperature difference polarization in the sewage, reduces membrane pollution, increases the membrane distillation flux, prolongs the operation period of the membrane module, reduces the heat loss of the pipeline, and increases the heat utilization rate.

The invention discloses a desulphurization wastewater zero discharge treatment process for a power plant with low running cost. The desulphurization wastewater zero discharge treatment process for the power plant with low running cost comprises a pretreatment softening process and an evaporative crystallization process, wherein desulphurization wastewater is firstly conveyed to an electronic flocculator in the pretreatment softening process, then reaction is carried out with added lime and sodium sulphate, separation and precipitation are carried out by virtue of a primary clarifier, then reaction is carried out with added sodium carbonate, then reaction products enter a secondary clarifier to be separated and precipitated and then to be filtered by virtue of a multi-medium filter, and finally filtrate is discharged into a clean water tank for carrying out the evaporative crystallization process; and in the evaporative crystallization process, firstly pretreated wastewater is subjected to pH regulation, then enters a plate heat exchanger to be heated and then enters an evaporator to be subjected to evaporative crystallization, and crystal separation is carried out on crystal mush. The desulphurization wastewater zero discharge treatment process for the power plant with low running cost has the advantages that low-cost sodium sulphate is used for replacing sodium carbonate, the pretreatment softening process and the evaporative crystallization process are combined, usage amount of a softening medicament is reduced, running cost is reduced, and an evaporative crystallization operation point is controlled, so that crystalline salt is high-purity industrial-grade sodium chloride, and purity is more than 99%.

The present invention discloses waste water treating microwave and light catalyzing method and apparatus. After grille depurating, still standing to deposit and pH regulation, the waste water to be further treated is microwave and light catalyzed in the waste water treating microwave and light catalyzing apparatus. The apparatus includes microwave reaction oven, waste water reaction chamber inside the microwave reaction oven, no-electrode lamp inserted inside the annular fixer on the inner wall of the waste water reaction chamber, and quartz stirrer set inside the waste water reaction chamber with shaft connected to the outer rotating motor. The present invention has prolonged service life of no-electrode lamp, raised photocatalytic degrading efficiency, simple apparatus, low power consumption and other advantages, and the combined microwave effect and photocatalytic oxidizing technology results in high organic matter eliminating rate.

The invention relates to a method for extracting and separating trivalent lanthanum and trivalent actinium ions and belongs to the technical field of nuclear fuel circulation and waste liquid treatment. The method uses bis(2,4,4-trimethylpentyl) dithiophosphinic acid as an extracting agent, uses long-chain alkane as a thinning agent and uses a weak acid buffer system to effectively stabilize the pH value of the water phase of an extraction system, pH regulation does not need to be performed to the system during extraction, trivalent actinium elements can be high-selectively extracted and separated out from the water phase, and most of trivalent lanthanum elements are remained in the water phase. The method for extracting and separating trivalent lanthanum and trivalent actinium ions has the advantages that the extraction and separation performance of trivalent lanthanum and trivalent actinium ions is high and stable and the prospect of application in the field of advanced nuclear circulation is better.

The invention provides a thallium-containing wastewater strongly oxidizing, coagulating, adsorbing and recovering process. The process includes the following procedures: thallium-containing wastewater concentration, pH regulation, strong oxidization, coagulation, flocculation, precipitated sludge treatment, pH regulation, solid impurity filtration, removal of Zn, Pb, Cd and Tl, and the like. The process has the beneficial effects that the process has the advantages of advanced technology, maturity, good effluent quality, stability in operation, conciseness in process, strong practicability, easiness in start and stop, convenience in maintenance and management, small investment, low operating cost, small floor area for construction, short construction period and large application ranges of projects; treatment of heavy metal ion polluted sewage is not limited by temperatures; the limitation that a biological method can not be used in cold regions in the north can be overcome.

The double enzyme hydrolysis process for preparing soybean peptide without bitter includes material pre-treatment, enzymolysis, terminating reaction, purifying product and mathematic simulation of the hydrolysis process. Soybean separating protein material is first pretreated at high temperature to destroy the structure of soybean protein and shorten enzymolysis time, then hydrolyzed with two kinds of proteinase of different characteristics to reach proper hydrolysis degree before high temperature treatment to terminating enzyme reaction. Through further pH regulation to precipitate residual protein, centrifugal separation and desalting the supernatant, the soybean peptide product is obtained. The soybean peptide product is ivory powder and has amino acid composition the same as that of soybean protein, balanced amino acid proportion and rich nutrients.

The invention relates to an inhibitor for preventing browning of a cut vegetable, comprising the following components: one of solvent water and ethanol or mixture thereof; one of sodium alginate, xanthan gum, carrageenan and chitosan, one or more of sodium tripolyphosphate, sodium pyrophosphate and 6-sodium metaphosphate, one or more of phytic acid, ascorbic acid, cinnamic acid, citric acid, kojicacid and edible acetic acid, and one or more of potassium sorbate, sodium dehydroacetate, sodium chloride and 4-hexylresorcinol. The inhibitor is used by soaking, and the soaking time varies with thetemperature and the air pressure of the processing environment. All the components used in the inhibitor are permitted in the GB2760-2007 (hygienic standards of food additives), and the inhibitor issulfite-free, safe and non-toxic, and can be used for fresh cut vegetables and can play the multiple roles of pH regulation, enzyme activity inhibition, oxygen removal and isolation and water retention to effectively prevent browning and play a role of anticorrosion and refreshment.

The present invention is concentrated soybean protein modifying method and features that water insoluble protein obtained through low temperature separation of defatted soybean residue is produced into concentrated protein powder in high water solubility through water dilution, pH regulation, heating, homogenization, drying and other steps. The concentrated protein powder has water solubility as high as 70-80 %, protein content of 67-70 %, processing performance of being emulsified, thickened, gelatinized, etc. and expanded use range. In addition, the process of the present invention has low cost, less pollution and good product taste.

The invention relates to an external gel used for treating diabetic foot, and a preparation method and an application thereof. Specifically, the invention relates to an external gel preparation with oxygen-carrying and antibacterial materials, and containing recombinant human epidermal growth factor (rhEGF). The preparation basically comprises: a medicine component recombinant human epidermal growth factor (rhEGF), an oxygen-carrying material, an antibacterial material, a gel substrate, a stabilizing agent, a humectant, a penetration enhancing agent, a surfactant, and a pH regulation agent.