37results about How to "PH drops" patented technology

The invention discloses a chemical processing method, and in particular discloses a method for recovering and reusing saponified waste water generated by a chlorohydrination method. The invention uses the novel film method and the salt and water recovering and reusing method to process the saponified waste water generated by a chlorohydrination method, and the technical designs, such as gas flotation, crystallizing prevention, ceramic film filtration, heat exchange, electrodialysis concentration, vaporizing recovery and the like are applied in the method. The invention has the advantages thatthe zero discharge of the waste water is basically realized, the salt and the water can be recovered, the small land area is occupied, the running expense is low, and the economic and social benefitsare high. The invention can be widely used in the factories using the chlorohydrination method for producing propylene oxide.

The invention provides an agent special for bioleaching municipal sludge, which belongs to the technical field of engineering technology. The agent for bioleaching the municipal sludge contains a carbon source and nutrient substances, which are needed by the growth of thiobacillus and acid-resistant heterotrophic bacteria, including ammonium sulfate, potassium chloride, dipotassium phosphate, calcium nitrate, magnesium sulfate, vitamins, trace elements, carbon source substances, sodium thiosulfate, sulphur powder, finished pyrite or ferrous sulfate heptahydrate, surfactant, dressing and the like. The production process comprises the following steps of: adsorbing a liquid material on diatomite serving as the dressing; and fully mixing the liquid material, other solid materials and the diatomite serving as the dressing to obtain the agent. The agent can meet the growth demands of various microorganisms in a bioleaching composite microorganism at the same time and greatly improve sludge bioleaching efficiency.

A liquid eye drop composition containing nacreous layer powder for relieving eye fatigue is provided. The liquid eye drop composition is characterized by comprising an active ingredient, adjuvant andsolvent, the active ingredient is composed of nacreous layer powder, borneol, zinc gluconate and carboxymethyl chitosan. The carboxymethyl chitosan used in the formula is a natural product, safe, non-toxic, and inherently preservative, which can make the new formula without or with less preservatives and reduce the irritation of the eye drops. At that same time, the eye drop composition doe not add the polyvinyl alcohol in the original drug, which can improve the problem that the pH drops dure the storage period of the drug, resulting in the eye irritation enhancement of the patient: the inventor found that the polyvinyl alcohol can catalyze the ester bond cleavage in the zinc gluconate, thereby dissociating the carboxyl group, so that the pH drops too fast. Furthermore, the use of carboxymethyl chitosan can also increase the viscosity of eye drops, which helps to prolong the action time of the drug, and can enhance the effect of relieving eye fatigue.

The invention relates to a reclamation method for saline and alkaline land, in particular to a method for rapidly constructing soda salinized dry farmland, and aims to solve the problems that reclamation of moderately-severe saline and alkaline land in the west area of Songnen plain is difficult and incomplete and existing reclamation methods are high in cost. The method specifically includes the steps of building of irrigation and drainage ditches, land formation, straw landfill, applying of ameliorant and organic fertilizer, rotary tillage, ridging and crop planting. The method has the advantages that the technical problems of high soil salinization degree, reclamation difficulty and incompleteness and high reclamation method cost of the existing saline and alkaline land in the west area of the Songnen plain are effectively solved; the method is relatively low in reclamation cost, effective, high in operability and applicable to extensive popularization and application; the pH (power of hydrogen) value of soil is lowered remarkably after reclamation, and emergence rate of crops is remarkably increased and the crops can grow normally after reclamation.

The invention discloses a method for efficiently recovering hydrogen from cellulose by synergistically utilizing thermophilic flora based on microbial electrolysis cells, which comprises the following steps: (1) at 55°C, using compost as inoculum and cellulose as Electron donor, culturing thermophilic cellulose-degrading bacteria in serum bottles; (2) Construct and start a single-chamber MEC system, using compost as inoculum and sodium acetate as electron donor, in a constant temperature incubator at 55°C Acclimate the thermophilic electrogenic bacteria on the anode of the MEC; (3) Add the enriched thermophilic cellulose-degrading bacteria to the single-chamber MEC, use cellulose as the electron donor, and run on the basis of cellulose The MEC where the degrading flora and the electrogenic flora act synergistically, and hydrogen gas is collected. The present invention utilizes thermophilic cellulose-degrading bacteria to realize hydrogen production by hydrolysis and fermentation of cellulose and utilizes thermophilic electrogenic bacteria group to utilize in situ the end product of cellulose fermentation (acetic acid) and produce hydrogen, so as to achieve high-efficiency conversion of cellulose chemical energy into hydrogen energy.

The invention relates to a method for preparing a microbial flocculant form potato starch wastewater as a raw material. The method comprises the following steps of: (1) screening a microbial flocculant strain Candida anglica; (2) preparing primary seed solution of the strain Candida anglica; (3) preparing a fermentation medium; (4) preparing fermentation liquor with flocculation activity; and (5) purifying, extracting, freezing and drying the fermentation liquor with flocculation activity to obtain a crude extract of the flocculant. The method is simple in process, short in fermentation period and easy to implement, has remarkable environmental and economic benefits, and is suitable for industrial production and popularization.

The invention provides a microbial bacterial agent and its application, and relates to the technical field of biological bacterial agents. The microbial bacterial agent includes: citric acid fermentation tail liquor, peptone, yeast powder, alkalophilic bacillus and water; the citric acid fermentation The mass ratio of tail liquid, Bacillus alkalophilus, water to peptone and yeast powder is (15~25)mL:(2~3)mL:(975~985)mL:(8~12)g:(4 ~6) g; the content of organic matter in the citric acid fermentation tail liquid is 150 ~ 250 g / L. The microbial agent provided by the invention not only has a significant effect of improving saline-alkali soil, but also can promote crop growth, increase crop yield and improve fruit quality.

The invention discloses a method for improving inland saline alkali soil by virtue of interplanting jerusalem artichoke and oat. The method comprises the following steps of: (1) performing land leveling in autumn, applying organic fertilizers, desulfuration gypsum and a chemical modifier and performing winter irrigation; (2) applying chemical fertilizers in spring, and performing rotary tillage and rake leveling; (3) interplanting and seeding at an interval of three rows of jerusalem artichoke and 10 rows of oat, wherein seed tuber seeding is adopted for the jerusalem artichoke; the jerusalem artichoke plant quantity per mu is controlled at 3000 plants, and the oat seeding quantity is 10kg / mu; (4) cultivating and weeding as well as hilling during a period that the main stem of jerusalem artichoke has 7 to 8 leaves, and spraying a herbicide before sealing ridges of the oat so as to control field weeds; and (5) starting harvesting oat seeds at the stage of milky ripeness, and starting harvesting underground stem tuber of the jerusalem artichoke when leaves of the jerusalem artichoke start turning yellow in the middle ten days of October, wherein the straws of oat are utilized as silage, and the straws of jerusalem artichoke are utilized as feedstuff. According to the method, the complementation of advantage effects of the jerusalem artichoke and the oat is utilized, so that mutualism and joint yield increase are realized; the jerusalem artichoke and the oat adsorb saline matters in the soil simultaneously and fertilize the soil, so that the saline-alkali harms are reduced.

The invention belongs to the field of environmental pollution control, and in particular relates to a biological reduction treatment technology for bulky sludge. The specific technical solution is: a complex microbial flora, which at least simultaneously includes: autotrophic microorganisms of the genus Leptospira, concurrent acidophilic microorganisms of the genus Sulfobacillus, and heterotrophic acidophilic microorganisms. The complex microbial flora and FeSO 4 They are inoculated together into the bulky sludge to be treated, and aerated until the pH value of the sludge liquid is 2 to 3, and the treatment is completed. The invention does not need to separately prepare specific medium for each microorganism, and the culture cost is low; it does not need to add acid to adjust the pH before the reaction; it does not need to add additional sulfur powder. The microorganisms in the composite microbial flora provided by the invention can grow synergistically, have strong adaptability to sludge, and grow quickly; the operation is simple and convenient, and the dehydration and weight reduction effect on bulking sludge is obvious.