48results about How to "Solve the problem of the source" patented technology

The invention relates to a method for building a tailings dam, in particular to a method for building a tailings dam through adoption of mine dumping. The method comprises the following steps that: a mine dumping yard and a tailings dam of a concentrating mill are combined; the mine dumping is adopted for directly building the tailings dam; a layered damming method or a strip damming method is implemented; after the tailings dam is formed, the inner side of the tailings dam is a tailings warehouse; and the outer side is a dumping yard. As mine dumping technology and damming technology of the tailings dam of the concentrating mill are combined, the method can greatly reduce the area occupation of the dumping yard, enlarge the utilization coefficient of the tailings warehouse and overcome the disadvantages of the prior damming construction method of the tailings warehouse and the difficult problems of sand lifting of tailings sand and the like; and meanwhile, after a mine stops production, under the condition that the mine dumping cannot be used for building the tailings dam, the concentrating mill can also utilize waste stone of the dumping yard to continue building the tailings dam. The process is suitable for the tailings warehouses of a valley type, mountain-surrounding type, flat type, cut-off river type and other types, is also suitable for building the tailings dam of theconcentrating mill of other industries, is also suitable for newly building the tailings dam of the concentrating mill and is also suitable for building the tailings dam of the concentrating mill in course of production.

The invention belongs to the technical field of economic forest tree seedling raising and particularly relates to a method for sterile cottage and rapid seedling propagation and raising of Australian melaleuca alternifolia. The method includes the following steps of (1) selection and processing of an explant material, (2) establishment of sterile strains for the first time, (3) multiplication culture, (4) rooting culture and (5) transplantation. The method utilizes a cutting technology and also utilizes a tissue culture technology, and therefore the method is high in cutting efficiency and is not affected by the environment. The source problem of cuttage branches is solved through self in-vitro propagation without forest tree consumption, tree growth and essential oil extraction are not influenced, and meanwhile the propagation efficiency is improved.

The present invention relates to a strain of oil-rich chlorella and its cultivation application. The strain is SF-B1, and its classification is named Chlorella ( Chlorella sp. ), which has been deposited in the General Microorganism Center of China Committee for the Collection of Microorganisms on July 6, 2015, with the preservation number CGMCC No.11005. Chlorella of the present invention can tolerate high concentrations of CO 2 And NOx, high carbon sequestration efficiency, the total cell lipid content in the obtained biomass accounts for more than 45% of the dry cell weight.

The invention discloses ankistrodesmus sp containing lipid as well as culture and applications of ankistrodesmus sp, wherein the ankistrodesmus strain is SS-B7, the classification name of SS-B7 is Ankistrodesmus sp, and the ankistrodesmus sp SS-B7 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on April 15, 2013, and has the preservation number CGMCC No.7478. The ankistrodesmus sp SS-B7 has tolerance to CO2 and NOx with high concentrations, and has high carbon sequestration efficiency, the content of total lipids in the cells of the obtained biomass accounts for 40% or above of the dry cell weight, and the ankistrodesmus sp SS-B7 can be used for producing biodiesel.