52results about How to "Meet the requirements of ecological environmental protection" patented technology

The invention relates to an arid desert region soil engineering slope bandicoot-caused damage prevention and control method. Reinforced concrete grid beams are embedded into a slope foundation layer, and sand gravels are filled in the reinforced concrete grid beams to destroy bandicoot nidification environments so as to achieve slope surface bandicoot-caused damage prevention and control effect. The method is simple, convenient, ecological and long-acting. According to ecological habits, living environments and other characteristics of levee slope bandicoots, a slope surface layer changed foundation structure is adopted, and a loose earth's surface structure which does not facilitate bandicoot nidification is created so as to achieve the purpose of effectively controlling damage caused by the levee slope bandicoots. A concrete grid beam structure is constructed on the ground slope to reinforce a slope soil body and ensure the slope stability. Sand gravel fillers are filled into concrete beam grids so as to inhibit bandicoot nidification and reduce the erosion scouring effect of rainwater. By means of the method, the problem that the bandicoot-caused damage prevention and control effect in the desert environment is low is solved, the ecological environmental protection requirements of a large canal system for slope bandicoot-caused damage prevention and control are met, and technical support is provided for bandicoot-caused damage prevention and control of arid desert region soil engineering facilities.

The invention discloses a eucalyptus seedling culture substrate. The eucalyptus seedling culture substrate comprises the following components in part by weight: 35 to 40 parts of coconut shell powder, 25 to 30 parts of peat, 15 to 20 parts of bentonite, 20 to 25 parts of attapulgite, 0.5 to 0.8 part of soil water-retaining agent, 15 to 20 parts of nutrient substance and 0.2 to 0.3 part of composite strain. A production process of the eucalyptus seedling culture substrate comprises the following steps of: drawing silk from a coconut shell to generate fragments; crushing the fragments; sieving until the granular size is 10 to 20 meshes; performing salt exclusion; mixing 35 to 40 weight parts of the coconut shell powder subjected to the salt exclusion, 15 to 20 weight parts of the nutrient substance and 0.2 to 0.3 weight part of high-temperature-resistant fermenting strain; adding clean water to stir and wet; stacking into a circular truncated cone shape; covering a membrane on the circular truncated cone so as to ferment; and after fermenting completely, adding the peat, the composite strain, the bentonite, the attapulgite and the soil water-retaining agent according to the weight ratio to mix and stir uniformly to prepare into block shapes. The coconut shell powder serves as a main raw material, so the materials are obtained singly and easily, the nutrient ingredients and the content are easy to control, and large-scale standard production can be performed easily.

The invention relates to the development of a flocculant WK-1 applicable to decolorizing printing and dyeing wastewater of an acid dye and a reactive dye, which belongs to the field of environmental pollution and controlling as well as resources recovery and utilization. A method for preparing the flocculant WK-1 applicable to decolorizing the acid dye and the reactive dye comprises the followingsteps: A, performing acidification on seedy wools with 60-percent sulfuric acid for 1 to 1.5 hours at room temperature to hydrolyze part of the seedy wools, and filtering the redundant sulfuric acid to obtain hydrolysis wool for standby; B, slowly dissolving chitosan of which the deacetylation degree is 85 percent in 100 milliliters of a 1 percent acetum, and stirring the mixture sufficiently to prepare a chitosan acetum; C, adding the hydrolysis wool in to the chitosan acetum gradually, and stirring the mixture for 30 minutes; and D, dropping a 5 percent NaOH solution into the mixture while stirring, adjusting the pH value to between 9 and 10, and continuing to stir the mixture slowly for 20 minutes to obtain a finished product. The method has he advantages of simplicity, practicability,low cost and less discharge capacity, and is a method and a process with greater practical significance.

The invention relates to a general lighting lamp LED, comprising lamp casing, lamp base, screw interface and a LED luminous source array including n layers which contain a plurality of LED in different or same color in each layer, wherein, the lamp casing comprises an integrated lens on the top and a cover lapped in n-1 layers which integrates a shoot and an arched surface in each layer, on the bottom of the cover that lapped as last layer is mounted a lamp base, and the screw interface is installed on the lower part of said lamp base. Said invention uses light source LED which has high electric-light conversion efficiency, super long service life, and environmental protective property, and improves the luminous efficiency by the direction of integrated lens, reflection of non-linear surface, and the optical system of light-gathering wall of the lamp casing, to reach uniform light and light collection. It can extends the layers of LED luminous source array according different power, set different color of each layer of luminous source array according different lamp color, and realizes the dynamic variation of light by control the control circuit in the lamp casing.

The invention belongs to the fine chemicals synthesis technical field, and discloses a method for synthesizing a copolymer polycarboxylate series non-formaldehyde crease-resistant finishing agent. The method adopts a clean aqueous solution polymerization technology, and comprises the following steps of: selecting H2O2-maleic anhydride as an initiator to perform a polymerization reaction at a reflux temperature with continuously dropping acrylic acid or an aqueous solution of the acrylic acid and vinyl acetate; synthesizing bipolymers and multi-element copolymers, which are terminated by carboxyl and use maleic anhydride and the acrylic acid as main monomers, through adjusting the proportions of the monomers and the dosage of the initiator. When the non-formaldehyde crease-resistant finishing agent is used as a non-formaldehyde crease-resistant finishing agent for textiles, thereby the crease recovery capability of the textiles can be improved.

The invention relates to a production process for a wet-laid air puncture type plant fiber non-woven fabric, which comprises: first opening plant fiber raw materials into single fibers, and then preparing the plant fiber into a suspension slurry; preparing the plant fiber suspension slurry through a wet-laid equipment The plant fiber web is formed; the plant fiber web is punctured by the jet air, so that the fibers in the plant fiber web are entangled with the adjacent fibers or yarns, and form a mechanical bond, and finally the plant fiber web is reinforced; and then dried The final product of plant fiber non-woven fabric is obtained by shaping, hot-rolling reinforcement, and rolling. The invention is specially aimed at plant fibers, and can produce plant fiber non-woven geotextiles that meet the requirements in both strength and water permeability.