123 results about "Environmental restoration" patented technology

The invention discloses titanium dioxide nanoribbons exposing a {010} crystal face and a preparation method thereof; an exposed crystal face, except two end faces, of the titanium dioxide nanoribbons is the {010} crystal face (the exposure rate of the {010} crystal face is close to 100%). The preparation method comprises titanate nanoribbons mainly exposing a {010} crystal face are used as raw material and are roasted at high temperature to prepare the product. The preparation processes of the titanate nanoribbons mainly exposing the {010} crystal face mainly includes four processes: hydrothermal reaction, alcohol assisting self-assembly reaction, water washing and drying. With adopting of the preparation method, not only is the exposure rate of the high-activity {010} crystal face improved, but also the specific surface area of titanium dioxide is increased. The preparation process has no need of use of fluorine-containing reagents and is an environmental-friendly green preparation method. With adopting of the preparation method, the preparation temperature of the titanium dioxide nanoribbons is reduced, and the production energy consumption and the production cost are effectively reduced. At the same time, because the titanium dioxide nanoribbons prepared by the method and exposing nearly 100% of the {010} crystal face have excellent photocatalytic activity, the titanium dioxide nanoribbons can be widely applied in the fields such as photolysis of water, environmental restoration, sensors and nano devices building.

A sewer backup alarm and overflow prevention device eliminates raw sewage spills by preventing pressure buildup in sewer drains. One or more sewage level sensors may be coupled to an alarm and / or to an automatic water main shut-off valve. The level sensor may detect excess fluid levels in a sewer lateral line. The sewer backup alarm and overflow prevention device may include a joggle which is a component of a non-mechanical backflow prevention device. The level sensor may detect fluid levels in the lower portion of the joggle and activate the automatic water main shut-off valve and / or the alarm. The sewer backup alarm and overflow prevention device may include at least one two-way, in-line cleanout tube which may extend vertically upwardly from the joggle. The level sensor may be mounted in the vertical cleanout tube. The components may be contained within a seamless polyethylene vault for ease of installation and protection against root intrusion.

The invention relates to an interrupt routing environment recovery method for the Feiteng processor dormancy process. The method comprises the steps that the saving sub-process of an interrupt routingenvironment is performed and particularly comprises the substeps of saving an ITS register environment and writing back ITS cache, and a dormancy mirror image is made; an operation system is startedagain; the recovery procedure after dormancy of the processor is started according to the dormancy mirror image, and a memory environment is recovered; the recovery sub-process of the interrupt routing environment is performed, and the interrupt routing environment is recovered; interrupt, equipment and processes are recovered, and then system recovery is completed. The method has the advantages that the implementation mode is ingenious, by means of organization design of a related register, a memory, cache processing and an interrupt route in an interrupt controller, consistent recovery of the interrupt routing environment of the dormancy process under a Feiteng processor platform is achieved, and the memory problem that after the system memory environment is recovered, the process address space is deleted is avoided.

The invention relates to the field of environmental restoration, in particular to preparation and application of a chitosan-stabilized ferrous sulfide composite biochar material. The highland barley crop straw in the plateau area is used as a biochar raw material, and chitosan is used as a stabilizer of ferrous sulfide, so that the stability of the ferrous sulfide is improved, the ferrous sulfide is more uniformly loaded on the biochar, and the treatment effect on hexavalent chromium is enhanced. The invention provides an efficient, green and environment-friendly environmental remediation material, not only overcomes the defect that nano ferrous sulfide is easy to agglomerate, but also realizes resource utilization, effectively improves the removal efficiency of pollutants, and does not cause secondary pollution.

The invention discloses a preparation method of a light-driven micro-robot for environmental restoration. The manufacturing method comprises the following steps: removing internal polymers of spherical particles having core-shell structures through a solvent method or a calcining method to obtain hollow microspheres with a photocatalytic property; adding the hollow microspheres with the photocatalytic property into a solution containing non-metal ions or metal ions for reacting to obtain ion-doped hollow microspheres with the photocatalytic property; placing the ion-doped hollow microspheres with the photocatalytic property on the surface of a substrate, depositing one or more function layers on semi-spherical surfaces of the hollow microspheres, and then removing the substrate. The robot can be driven under the action of sunlight and can work for a long time. Non-metal elements or metal ions are doped, so that band gaps among particles with the photocatalytic property can be effectively narrowed, the separation efficiency of photo-induced electrons and holes is increased, the visible light responsiveness and catalyzing efficiency of the micro-robot are improved, and the functions of realizing self-movement by effectively using visible light and degrading organic pollutants under photocatalysis are realized.

The invention provides a vegetaion cultivation device which comprises a base package and a cylindrical nutrient ring, wherein a soil improvement rod is arranged in the nutrient ring and is connected with the nutrient ring by virtue of multiple segregation boards; and during use, the nutrient ring is arranged on the base package. The vegetaion cultivation device can be used for ecological remediation of engineering construction lands and lots of bare slopes, the survival rate of plants under chilly conditions is guaranteed, a stable slope plant community is constructed, the ecological remediation effect is good, and the requirement on ecological environment restoration of bare surfaces caused by engineering construction in alpine regions is met.

The invention belongs to the technical field of ecological environment restoration, and discloses a rain water collection and recycling construction method for ecological restoration of a mining wasteland. The construction method comprises the steps that a local runoff volume control objective is determined to calculate rain water collection and recycling parameters, wherein the water pressure, lift and flow parameters are calculated; a construction drawing and construction technical requirements are clearly determined, and water supply and drainage of an engineering site and the environment around the site are surveyed on site; according to the design drawing, on-site verification is conducted; a rain water collection and recycling device is built; after the mining wasteland is subjectedto ecological restoration and landscape remodeling, a new thematic function mode is formed, rain water is collected by using the built rain water collection and recycling device, and the collected rain water is sued for irrigating plants in a landscape remodeling main functional area of the mining wasteland. The construction method is simple and easy to implement, scientific in design, easy to construct, install, transport and maintain, and wide in application range.