63results about How to "The method is simple and economical" patented technology

The invention discloses a method for recovering copper ions in copper-plating cleaning solution. The method comprises the following steps of filtration pretreatment, first-stage cyclic separation, second-stage cyclic separation and chemical concentration. The method which adopts a membrane cyclic separation technique plus a chemical concentration method realizes the decomposition, concentration and complete on-line recycling of electroplating waste liquid, realizes real zero emission, is very simple and economical, and solves the problem of the industrialization of an electroplating waste liquid treatment zero-emission technique from research experiments to practical application.

The invention provides a method for extracting and preparing lignin composite nano fibers in situ, which takes natural lignocellulose biomasses as raw materials. The method comprises the following steps: (1) taking natural lignocellulose as the raw materials; (2) dissolving the natural lignocellulose and extracting lignin by taking a commixed electrolyte solution composed of ion liquid/an organic solvent as a solvent; (3) precipitating cellulose and semi-cellulose in the natural lignocellulose by an anti-solvent, and separating to obtain a lignin electrolyte solution; (4) adding with synthesized polymers at different parts relative to the lignin into the obtained lignin electrolyte solution to obtain a lignin-synthesized polymer electrolyte electrostatic spinning raw solution; and (5) preparing the lignin composite nano fibers by using the spinning solution through an electrostatic spinning technology. According to the method provided by the invention, all components in corn straws can be efficiently utilized; a technological process is simple and the dissolving can be recycled; the method is pollution-free and environmentally friendly, and economical and energy-saving properties are realized; and the prepared lignin-based electrostatic spinning composite fibers are uniform and continuous, have good thermal stability and can be biologically degraded.

The invention relates to a lithium battery or a combination thereof with a double-layer capacitor, said battery being characterized by a solid electrolyte or gel electrolyte and a binder made of inorganic-organic hybrid polymer. By means of the new binder concept presented here, it is possible to revolutionize the contacting of the individual components in said batteries and thus to enable a fundamental improvement of the ion transport. Associated therewith is a new, fast, simple, and flexible production method for lithium batteries that optimizes said batteries in regard to safety, stability, environmental friendliness, and performance.

The present invention provides a catalyst comprising a composite of a heteropolyacid impregnated on a support for the synthesis of 2- and 4-picolines and a process for the preparation thereof and use thereof for the synthesis of 2- and 4-picolines.

The invention discloses a separation wall for carrying out in situ separation repair on a pollution site and a construction method thereof. The separation wall consists of unpolluted in situ soil and bentonite, wherein the mass ratio of the in situ soil to the bentonite is 95:5 to 85:15. The construction method of the separation wall comprises the following steps of: a first step of excavating a trough body in a region on the periphery of the pollution site, wherein soil digged out from the trough body is the unpolluted in situ soil; a second step of preparing bentonite slurry; a third step of pouring the bentonite slurry into the trough body; a fourth step of preparing back filling, i.e. adding bentonite dry powder in the unpolluted in situ soil, uniformly mixing the unpolluted in situ soil and the bentonite dry powder to form the back filling; and a fifth step of filling back the back filling mixed with the bentonite into the trough body and uniformly stirring the back filling and the bentonite slurry in the trough body. Due to the adoption of the technical scheme, the construction cost of the separation wall can be reduced, the separation response time is shortened, and the separation effect is improved. Meanwhile, the construction method is simple.

The invention discloses a method for cultivating aphelenchoides besseyi by using carrot callus and belongs to the technical field of plant nematodes cultivation and preservation. The method includes specific steps of washing fresh carrots clean, soaking in alcohol, firing unit surfaces of the carrots become dark red, peeling the surfaces, cutting into slices, placing in a sterilization petri dish containing water agar, sealing, placing in an incubator, and cultivating until the carrot callus is grown out; disinfecting the aphelenchoides besseyi by using streptomycin sulfate solution, centrifuging, precipitating, evenly mixing by using sterile water, centrifuging continuously, finally precipitating, diluting by using the sterile water, and dropping on the carrot callus in dispersing mode; and placing the carrot callus with inoculation of the aphelenchoides besseyi in a black incubator, and cultivating at the temperature of 25 DEG C-30 DEG C or preserving at the temperature of 20 DEG C-25 DEG C. The method for cultivating the aphelenchoides besseyi by using the carrot callus can cultivate and reproduce the aphelenchoides besseyi simply and largely and can also maintain parasitic and pathogenic force of the aphelenchoides besseyi to the plant.

The invention discloses an application of water-soluble lachnum melanin in preparing a medicine for inhibiting liver cancer. The application is characterized in that intracellular melanin generated by lachnum of which the strain preservation number is CCTCC (China Center for Type Culture Collection) No:M2011054 is modified by a histidine molecule to obtain water-soluble lachnum melanin. Pharmacodynamic experiments prove that the water-soluble lachnum melanin has a remarkable function of inhibiting liver cancer, and does not have toxic or side effect; the preparation method is simple and economical, so that the lachnum intracellular melanin of which the strain preservation number is CCTCC (China Center for Type Culture Collection) No:M2011054 and the water-soluble melanin thereof are subjected to a pharmaceutical conventional preparation method, and an effective dose of the water-soluble lachnum melanin and a proper amount of medical auxiliaries are mixed to prepare oral tablet or capsule type medicines for inhibiting liver cancer.

The present invention provides an instant radix millettiae speciosae and a preparation method thereof. The method comprises the following steps: 1) fresh radix millettiae speciosae is washed, the washed radix millettiae speciosae is sliced, the sliced radix millettiae speciosae is crushed, water is added, the crushd radix millettiae speciosae is subjected to a vacuum flash extraction, and the extracted radix millettiae speciosae is filtrated, wherein the vacuum flash extraction is conducted at a temperature of 60-90 DEG C and a vacuum degree of -0.08 to -0.098 MPa; 2) the radix millettiae speciosae extract is concentrated and dried to obtain a dried radix millettiae speciosae paste; and 3) the dried paste is crushed to obtain the instant radix millettiae speciosae. The vacuum flash extraction fully dissolves the various active ingredients in the radix millettiae speciosae and also solves the problem that the extraction of the radix millettiae speciosae is serious in blistering. Then a series of specific technologies are used to obtain the instant radix millettiae speciosae, so that the nutrients of the fresh radix millettiae speciosae are maximally preserved. The present invention also provides a consumption method of the instant radix millettiae speciosae.

The invention aims at providing a simple and easy fresh-keeping method of tuber indicum (Chinese truffle). The fresh-keeping method comprises the steps of material selection, surface cleaning, disinfection sterilization, preserving substrate preparation, preparation of vessels for preserving a truffle material, and embedment and storage. The fresh-keeping method also comprises requirements of a preserving temperature and the like. The fresh-keeping method is simple and economic and does not need special equipment. Through the fresh-keeping method, a fresh-keeping period can be extended to a period of 3 to 6 months; an original shape, original color and original ingredients cannot be changed; spoilage deterioration is avoided; loss is avoided; transportation is convenient; market supply time and seasons are extended; and the maximum values of goods are reflected.

The invention discloses a method for improving the activity of dye decolorizing peroxidase, and belongs to the field of enzyme engineering. The method comprises the following steps: jointly connectinga gene for coding dye decolorizing peroxidase (DyP) and a gene hemA for coding escherichia coli endogenous glutamyl-tRNA reductase to a vector pET28a to obtain a recombinant vector, and transferringthe recombinant vector into escherichia coli from which coding escherichia coli endogenous channel protein gene eamA is knocked out for expression. A result shows that the specific enzyme activity ofthe expressed recombinant DyP is remarkably improved. The method is simple, convenient and economical, and has application value.

The invention relates to a method for manufacturing a metallic, ceramic or composite part or a metallic, ceramic or composite supported microstructure by laser exposure from metal oxalates, and to thepart and the microstructure obtained by said method, as well as to the uses thereof.

The invention discloses a method for improving the propionic acid output of acetic bacteria through pulsed magnet field, and relates to the field of bioengineering. According to the method, acetic bacteria are treated through the pulsed magnet field with different magnet field strengths and number of pulses, so that acetic bacteria mutant strains with increased propionic acid output are obtained. The method ensures that the propionic acid output is increased by 20 to 60 percent, and the hereditary stability is good.

The invention belongs to the technical field of functional materials and in particular relates to a method for preparing a super-hydrophobic super-oleophilic porous material. The method comprises the following steps: etching clean a polyurethane sponge by adopting chromic acid cleaning solution, and loading polytetrafluoroethylene on the surface of the polyurethane sponge by adopting a rubbing method, thereby obtaining the super-hydrophobic super-oleophilic porous material. The invention provides a non-chemical, environment-friendly and convenient method for loading low-surface-energy substances, and the method is simple in process, convenient to operate, low in time consumption, simple and economical. The contact angle between the obtained material and water is larger than 150 degrees, the contact angle between the obtained material and oil is 0 degree, and the material has wide application prospects in the fields of cleaning of oil pollution in water, industrial oil-water separation and cleaning of organic matter leakage.