42results about How to "Invest fast" patented technology

The invention discloses a water cultivation method of herbs to treat eutrophic water, comprising the steps: PVC plastic tubes are taken as a frame, a nylon net is bound on the frame to form a floating bed; seeds of grass species are soaked for accelerating germination at a room temperature of 28-32 DEG C, the seeds after germination are sowed in a seedling bed formed by a PE membrane with even eyelets to keep the moisture content and temperature, facilitating the germinated seeds to take root and grow; the seedling bed is put on the floating bed that floats in the eutrophic water after the roots of the grass species grow into three-leaf seedlings and come out through the eyelets of the PE membrane, then nutrient salts of nitrogen and phosphors, etc. in the water body are absorbed by the herbs, meanwhile, allelochemicals are secreted to inhibit the propagation of algae, so as to realize in-situ bioremediation of the eutrophic water and promote feed production when improving the water quality. The whole treating method realizes a good circulation system between 'environment-plant-animal-human'.

The invention relates to a concentrated heating boiler thermoelectric generating system, which comprises a heating boiler; a heating user; and a water pump that form the heating system, wherein it is characterized in that: the heating boiler is connected to the steam boiler via tube; the steam boiler via steam tube is connected to the inlet tube of turbine; the outlet tube of turbine is connectedto the heat exchanger; the condense water tank of heat exchanger via tube and water pump is connected to the oxygen remover; the oxygen remover via tube and water feeding pump is connected to the steam boiler; the output axle of turbine is connected to the generator; the output electricity of generator is connected to the electric appliance. The invention has high thermo-electric ratio, high heatutilization, small volume, and low cost.

The invention relates to a multi-metal recovery processing technique of waste liquid generated in a germanium producing process, belonging to the technical field of non-ferrous metal wet method metallurgy. The multi-metal recovery processing technique comprises the following steps: extracting germanium from the waste liquid generated in the germanium producing process by an extractant A and a kerose diluent, washing, carrying out back-extraction, removing impurities, purifying, depositing the germanium and electrolyzing to obtain the metal germanium with the purity of 99.99%; firstly extracting iron and partial impurities from the residual waste liquid after extracting the germanium by an extractant B and the kerose diluent, and extracting indium from the residual waste liquid after extracting the iron by the same organic extractant B, adjusting the pH, extracting the indium by the extractant A, carrying out the back-extraction, neutralizing, oxidizing, removing the impurities and replacing to obtain spongy indium, and then briquetting and casting to obtain 99% metal indium. The invention has the advantages of short process flow, small occupied area, few investment, fast implementation and good working conditions, solves the problems that the valuable metal in the waste acid solution can not be recovered and has higher value of the resource comprehensive utilization. Furthermore, the metal recovery rate is larger than 92%; the purity of the obtained product, metal germanium, is 99.99%, and the purity of the metal indium is 99%.

The invention discloses a method for reducing water on urban streets which builds rainwater accumulation devices in residential quarters or other public areas such as squares, parks and grassy areas without affecting the traffic, wherein the rainwater accumulation devices are communicated with urban sewerage backbone network through drainage branch pipes with drainage flow regulating devices. When it rains, the rainwater on areas except the urban streets firstly flows in the rainwater accumulation devices, then water in the rainwater accumulation devices is drained to the urban sewerage backbone network designedly and organically according to the flow set by the drainage flow regulating devices to outflow. The constant flow organically drainage is carried out according to different zones and different time intervals along the rainwater accumulation devices, the rainwater branch pipes and the backbone pipes so as to solve the conflict that the drainage capacities of the drainage backbone pipes and river channels are not enough as rainwater is drained intensively in short time, and reduce the influence of standing water to the work and life of people.