122results about How to "No environmental problems" patented technology

The invention discloses a high-efficiency environment-friendly foam extinguishing agent and a preparation method thereof. The high-efficiency environment-friendly foam extinguishing agent is composed of, by weight percentage, 10%-50% of a composite surface active agent, 10%-30% of an organic solvent, 1%-5% of a stabilizer, 0.2%-4% of a burning resisting agent, 0.5%-3% of a chelating agent, 0.1%-1% of a corrosion remover and the balance water. The preparation method includes the steps that surface active agents are sequentially added to water to form the composite surface active agent A while being stirred, the organic solvent and the stabilizer are mixed evenly to form a component B, then the A is added to the continuously-stirred B, stirring is continued, then the burning resisting agent, the chelating agent and the corrosion remover are sequentially added to the A and B mixed system, and finally the water is added as the balance, so that the high-efficiency environment-friendly foam extinguishing agent is obtained. The high-efficiency environment-friendly foam extinguishing agent is free of a fluorine surface active agent, thereby being high in bioremediation performance. Foam prepared through the method is good in stability and high in fire extinguishing efficiency, and is a high-efficiency environment-friendly product. According to the preparation method, heating and filtering are not needed, the three wastes are avoided, environment protection and energy conservation are achieved, and the production efficiency is high.

The invention discloses a biodegradable non-phosphorous anti-scale corrosion inhibitor and a preparation method thereof. The biodegradable non-phosphorous anti-scale corrosion inhibitor comprises, by mass, 10-20% of polyaspartic acid, 5-20% of polyepoxysuccinic acid, 30-60% of copolymers, 5-10% of zinc salt, 2-5% of fluorescent tracers and the balance water, wherein the molecular weight of the copolymers ranges from 2000-10000, and the copolymers are maleic anhydride/acrylic acid/ acrylic acid oxylactone/2-acrylamide-2-methylpro panesulfonic acid quaternary copolymers. The non-phosphorous anti-scale corrosion inhibitor is used for stainless steel condenser circulating cooling water systems of thermal power plants, is non-phosphorous, non-toxic, easily biodegradable, free from environmental problems and unlimited in discharge, and is capable of controlling carbon steel corrosion rate to be smaller than or equal to 0.075mm/a, controlling corrosion rate of copper, copper alloy and stainless steel to be smaller than or equal to 0.005mm/a, controlling dirt deposition rate to be smaller than or equal to 15mcm and controlling scale inhibition rate to be larger than or equal to 80%.

The invention provides a non-poison and no foreign odor disinfectant containing double-chain quaternary ammonium salt and orthophthalaldehyde. The technology gist of the invention is that the material double-chain quaternary ammonium salt and orthophthalaldehyde are mixed at a ratio of 2 M : 1 M in molar content. The invention has the efficacy of both biquaternary ammonium salt and orthophthalaldehyde and is suitable for epidemic prevention disinfection, disinfection for articles of agriculture and breeding industry, inviroment disinfection, and immersion sterilization of medical device such as wet endured heatlabile endoscopes and surgical instruments.

The invention belongs to the technical field of cultivation, and discloses a cultivation method for akebia trifoliata. The method comprises the following steps: selecting flat land with leeward sunnyexposure or mountain or hilly land with a slope of less than 15 degrees, selecting sandy loam soil or loam with a pH value of 6.5-7.5, an organic matter content of not less than 1%, and a groundwaterlevel of less than 1 m, and performing garden construction; performing planting: selecting a variety, performing seedling quality selection, selecting a planting period, selecting a planting density and performing planting; performing shaping and pruning: performing tree shape pruning, performing shaping, and performing pruning; performing flower and fruit management: thinning inflorescence, thinning flowers, retaining fruits, thinning the fruits, setting the fruits, performing bagging, and performing harvesting; performing soil, fertilizer and water management: performing soil management, performing fertilization, and performing water management; and preventing and controlling diseases and pests. The method disclosed by the invention increases wild resource survey, selects seedless and few-seed excellent plants, develops series of processed products and health care products of the akebia trifoliata, and makes a first artificial cultivation technical regulation of the akebia trifoliatain China.

The invention discloses a process for extracting a theaflavin product, and relates to the technical field of the deep processing of tea products. In order to solve the problems of excessive oxidization and low yield caused by the uncontrolled consecutive reaction in traditional in-vitro enzymatic oxidization process for the preparation of theaflavin, the invention provides the process for extracting the theaflavin product, which comprises the following steps of: (a) the preparation of a substrate solution; (b) the preparation of an enzymatic catalyst; (c) the preparation of fermentation; (d) the separation of an ester phase; (e) the concentration and phase inversion; and (f) drying. When the process is adopted, the process control of the fermentation process is realized, the conversion rate and specification of the theaflavin product are improved, and the process cost for the follow-up refining and purification is reduced.

The invention relates to a steel product (carbon steel) seawater corrosion inhibitor, in particular to an oligochitosan corrosion inhibitor and an application thereof. The corrosion inhibitor comprises the components of oligochitosan with better water solubility after chitosan degradation or a combination of oligochitosan with one or two of zinc sulfate and hexamethylene tetramine. The corrosion inhibitor can effectively prevent the corrosion of seawater on carbon steel and has the advantages of low use amount, high corrosion inhibition efficiency and strong action duration capability. The product of the invention is an environmental-friendly green corrosion inhibitor and has a wide material source range, a broad market prospect and a good application value.

The invention relates to ship unloading equipment applicable to various kinds of dried bulk cargo, which has the advantages of bundline resource saving, small area of occupied ground, low construction capital investment and cost reduction. The ship unloading equipment comprises an ascending conveying structure, a horizontal conveying structure, a descending conveying structure, a distribution conveying structure, cargo outlet pipes and a steel rail, wherein the ascending conveying structure is connected with the horizontal conveying structure, the horizontal conveying structure is connected with the descending conveying structure, the descending conveying structure is connected with the distribution conveying structure, and the distribution conveying structure is communicated with the cargo outlet pipes. The invention is characterized in that the cargo outlet pipes are distributed on the lower end surface of the distribution conveying structure.

The invention relates to a corrosion inhibitor for a steel neutral medium, particularly relating to a green sodium alginate corrosion inhibitor for a carbon steel neutral medium as well as an application thereof. The corrosion inhibitor is sodium alginate of which the chemical general formula is (C6H7NaO6)n and the average molecular weight (Mw) is 20000-100000. The sodium alginate corrosion inhibitor disclosed by the invention is a natural product extracted from brown algae, and is widely applied to food industry. The corrosion inhibitor is a copolymer formed by connecting alpha-L-mannuronic acid (M units) with beta-D-guluronic acid through 1,4-glucosidic bonds and composed of different GGGMMM fragments. The alpha-L-mannuronic acid unit contains a large amount of carboxyl and can be coordinated with metals. Compared with the current commonly-used organic corrosion inhibitor, the corrosion inhibitor disclosed by the invention is non-toxic and harmless, thereby having no environmental problem after use. In addition, the corrosion inhibitor is non-toxic and harmless to environment and living beings, thus conforming to development of green corrosion inhibitors.

The invention relates to a corrosion inhibiter for steel acid pickling, in particular to an environment-friendly corrosion inhibiter for carbon steel acid pickling, which can prevent carbon steels and the products from corroding carbon steel materials and over consumption of acidizing fluid in the acid picking process and the application thereof. The component of the corrosion inhibiter is one or the combination of hexanophenone-O-(1, 3, 4-tolyltriazole) methylene oxime, 4- methoxy acetophenone-O-1'- (1', 3', 4'- tolyltriazole) methylene oxime and 4-fluorine acetophenone-O-1'-(1', 3', 4'-tolyltriazole). The application of the corrosion inhibiter is that steels are immerged and washed in acid liquid added with tolyltriazole. The corrosion inhibiter of the invention can effectively prevent acid from corroding the carbon steel materials in acid picking process and has the outstanding advantages of low consumption, high corrosion inhibition efficiency, stable corrosion inhibiting performance and simple synthesis. Besides, the corrosion inhibiter for steel acid pickling of the invention has no pollution to environment, comparatively high productive value and wide market prospect.

The invention discloses a preparation method of an ion response type antibacterial and anticorrosive coating, which comprises the steps of firstly, preparing a SiO2 nano container through liquid phase mixing and reflux condensation, then mixing the nano material with an antibacterial agent, carrying out ultrasonic treatment to obtain a nano container loaded with the antibacterial agent, then packaging the nano container by adopting a FeIII-TA complex molecular film, finally, according to a basic method for preparing the coating, adding the functional filler into the matrix coating, then adding a coating additive, and stirring at a high speed to obtain the ion response type antibacterial and anticorrosive coating. The selected coating is a water-based coating, the antibacterial agent is triclosan (TCS), and the coating and the antibacterial agent have the characteristics of being green and environment-friendly and do not contain harmful components. In the using process, harm to the human body and the environment is avoided, and the coating has the characteristics of self-repairing, long antibacterial aging and excellent corrosion resistance.

The invention discloses a technology for removing bismuth from copper electrolyte with low cost. The technology comprises the following steps of: leaching and filtering soot or slag to obtain primary leached residue, modifying the primary leached residue to obtain a modified bismuth removing agent, adding the modified bismuth removing agent into a reaction container, fully mixing and stirring the modified bismuth removing agent and the electrolyte, adsorbing and co-precipitating Bi, Sb and the like in the electrolyte through the bismuth removing agent by using the principle of similar adsorption of insoluble substances, and returning the filtered Bi-removed electrolyte to a production system, wherein the Bi removing effect of the bismuth removing agent declines after multiple times of cycle, the bismuth removing agent can be reused after resolving and pulverizing, and valuable metals in the bismuth removing agent can be recovered by treatment. 'Three wastes' are not produced in the whole process, normal production of a master system is not interfered, noble raw materials, high energy consumption and manpower resource expenses for the conventional bismuth (and antimony) removal are reduced, and harm of bismuth, antimony and arsenic of high-quality cathode copper produced by using a mineral copper anode plate is eliminated; and the technology is expected to become a new technical turning point of copper electrolytic refining, so that the copper electrolytic refining way is flatter.

Disclosed is a conductive sliding film (50), which is a film applied to the surface of a relatively sliding member (60). The conductive sliding film (50) is a metal-doped tetrahedral amorphous carbon that is doped with a metal element and has resistivity in a range of 10<2>-10<-4> [Omega cm] and surface hardness in a range of 10-30 [GPa]. The conductive sliding film is provided with high abrasion resistance and excellent slidability and is suitable for mounting members for cameras.