37results about How to "Improve the level of greening" patented technology

The invention discloses a sludge treatment device, which belongs to the technical field of sludge treatment. The technical scheme of the present invention is: a sludge treatment device, comprising a machine base, a sludge treatment drum, a power drive mechanism, an output pipeline and a hood, the special feature of which is that the sludge treatment device includes at least heavy metals The treatment drum, the carbonization drum and the fixed carbon combustion drum consist of three coaxial sleeves from the inside to the outside. Compared with the prior art, the present invention is a new sludge treatment with reliable technical scheme, no secondary pollution, high investment efficiency and quick effect. The device is with outstanding substantive features and remarkable progress.

The invention discloses biology-based high-rigidity furan epoxy resin and a preparation method thereof, and belongs to the technical field of polymer compounds. The preparation method comprises the following concrete steps: subjecting an obtained furan epoxy resin monomer and different types of curing agents to hot melting, then carrying out uniform mixing, and carrying out mold injection, heating and curing so as to obtain furan epoxy resin with excellent energy storage performance, wherein the furan epoxy resin reaches a phase transition temperature up to 216 DEG C and a rigidity up to 4.1 GPa. The method provided by the invention has the following advantages: through direct adoption of a bulk curing method, simple operation flow and short curing time are achieved, and an obtained biological epoxy resin polymer material has excellent performance.

The invention relates to the technical field of plant repairing to heavy metal pollution in environment, and in particular relates to a repairing technology for heavy metal copper pollution in mine soil of Karst mountain areas, specifically the application of ditch millets in repairing heavy metal copper pollution of the mine soil in the Karst mountain areas. The application method comprises the following steps of: covering 2-4cm of surrounding forest litters and soil seed banks in the soil polluted by copper at first, then sowing the ditch millets, harvesting and ashing the ditch millets periodically, and thus repairing the soil polluted by the heavy metal copper. Because the ditch millets are strong in salt and alkali resistance, adaptability, growth potential and expansibility and are resistant to trampling, so that the ditch millets are particularly suitable for piecemeal thinning of soil stratum and mining areas with strong acidity in the Karst mountain areas, can improve the greening level of the areas at the same time, are simple to sow and manage, and facilitate engineering implementation.

The invention discloses a treatment method for sludge in a municipal sewage treatment plant and belongs to the technical field of sludge treatment. The technical scheme adopted by the treatment method is as follows: the treatment method is characterized in that sludge in the municipal sewage treatment plant is subjected to harmless processing and treatment through the processing steps of dehydration, modification and heavy metal treatment, and treated sludge conforms to the national pollutant control standard of agricultural sludge. Compared with the prior art, the treatment method is novel, reliable and free of secondary pollution, changes waste into valuable, realizes harmless treatment of sludge, realizes the outstanding substantial characteristic of resourceful treatment and makes remarkable progress.

The invention provides a municipal greening garbage can and belongs to the field of municipal greening facilities. The municipal greening garbage can comprises a garbage can body and a garbage can cover and is characterized in that the garbage can body is of an annular structure and comprises two semicircular boxes which are detachably connected, the garbage can cover is of an annular structure and comprises two half covers which are detachably connected, and the garbage can cover is arranged at the top of the garbage can body; positions, close to the top, on the inner side of each semicircular box are provided with a plurality of clamp pieces arranged at intervals, and clamp seams are formed between the tops of the clamp pieces and the semicircular box; the top of the half covers are provided with planting grooves. The municipal greening garbage can has the advantages that the municipal greening garbage can is able to be conveniently matched with existing municipal devices such as a lamp post, a telegraph pole and a traffic lamp post, green plants can be planted at the top of the garbage can, garbage can be placed into the garbage can, and the garbage can is convenient to use, applicable to various parts of a city and capable of increasing the greening level of the city.

The invention discloses a phosphorus-free all-bio-based flame-retardant epoxy resin with excellent thermal and mechanical properties and a green preparation method thereof. The main structure of the epoxy resin is a network polymer composed of a first unit and a second unit; the first unit is shown as unit A; the second unit is unit B, unit C, unit D and Any one or several combinations of units E; the molar ratio of the first unit and the second unit is 2-5000:2-5000. The phase transition temperature of the prepared all bio-based resin material of the present invention is high (T g,DSC , 283.5°C), high rigidity (4.14GPa), wide operating temperature range, strong rigidity, belonging to special functional materials.

The invention relates to the field of landscaping, and particularly relates to a saline-alkali-resisting planting structure and planting method for landscaping trees in a tidal flat reclamation area.The invention mainly solves the technical problems that treatment and planting methods in saline-alkali soil are relatively complicated, large-specification seedlings such as cinnamomum camphora, celtis julianae and the like in the tidal flat reclamation area are low in survival rate, poor in growth vigor, and poor in landscape effect, the irrigation treatment area is small, the irrigation efficiency is low, and the like in the prior art. The method comprises preparation of a big tree soil ball; the big tree soil ball is buried in a first planting soil layer; the edge of the big tree soil ballis provided with a plurality of polyvinyl chloride (PVC) hollow pipes; the lower ends of the PVC hollow pipes are close to the bottom of the big tree soil ball; a second planting soil layer, an organic fertilizer layer, a third planting soil layer and a gravel layer are sequentially arranged under the first planting soil layer; each PVC hollow pipe comprises a main pipe and a lengthened pipe; theouter surface of the end part of each main pipe is in threaded connection with the inner surface of the end part of one corresponding lengthened pipe; each PVC hollow pipe is provided with thorough holes; and the edge of each through hole is provided with guide grooves.

The invention discloses a bio-based flame-retardant magnolol epoxy monomer, a preparation method and an application in flame-retardant epoxy resin. The preparation method of the bio-based flame-retardant magnolol epoxy monomer comprises the following steps: (1) stirring the mixed solution of magnolol, sodium hydride and tetrahydrofuran under the protection of an inert gas; Acyl chloride reaction, obtains the intermediate shown in formula II; (2) the solution of intermediate shown in formula II is reacted with m-chloroperoxybenzoic acid, obtains the bio-based flame-retardant magnolol epoxy resin shown in formula I monomer. The invention prepared the bio-based flame-retardant magnolol epoxy monomer shown in formula I for the first time, which is a new type of bio-based phosphorus-containing epoxy structure, and is also a good flame-retardant additive with low usage. At the same time, It has excellent compatibility in epoxy resin, no phosphorous removal after participating in curing, high safety, and great market application value.

The invention provides a municipal landscaping box, and belongs to the field of municipal landscaping facilities. The municipal landscaping box comprises a box body and a box cover, the box body is ofa circular structure and comprises two semicircular box bodies which are detachably connected, the box cover is of a circular structure and comprises two semi-cover bodies which are detachably connected, and the box cover is arranged on the top of the box body in a covering mode; each semi-cover body comprises a sector baseboard and a hoarding vertically arranged on the edge of the side portion of the baseboard, and a planting groove is defined by the hoarding and the baseboard. The landscaping box can be placed individually or placed in cooperation with an existing municipal facility such asa lamp pole or a telegraph pole or a traffic guidance pole; the landscaping box has multiple actions, firstly, green plants can be planted on the top of the landscaping box, and secondly, articles can be placed in the landscaping box, for example, the landscaping box can be used as a garbage can or a toolbox; the landscaping box can be applied to various portions of a city to improve the landscaping level of the city.