4results about How to "Alleviate the lack" patented technology

The application discloses a method for annual efficient production of centipedegrass seedling, which comprises the following steps: building a multi-layered culture shelf, preparing a seedbed, sowing seedlings, managing a rooting stage, managing a seedling forming stage, pre-harvest management, harvesting seedlings, and post-harvest management. According to the technical scheme, the centipedegrass seedlings can be rapidly propagated under the precise environment control of temperature and light by building a multi-layered shelf indoors, and the seedlings can be harvested 6-8 times per year after one-time planting, so that the annual efficient production of the centipedegrass seedlings is realized, sufficient seedling materials are provided for national land greening, sports field lawn planting and ecological restoration, and remarkable economic benefits are achieved.

The invention discloses a concrete prepared by using tunnel waste and a preparation method thereof, and relates to the field of building materials and engineering. The concrete prepared by using the tunnel waste comprises the following components by weight: 1800-2200 parts of tunnel waste, 300-450 parts of cement, 6-18 parts of polyaluminium ferric chloride, 2-10 parts of carboxymethyl cellulose, 4-17 parts of water reducer, and 135-225 parts of water. The invention does not need to firstly perform secondary treatments such as crushing and shaping, washing and demuding the tunnel waste, and directly uses it to prepare concrete when the particle size is satisfied, so that conventional concrete construction and mechanical properties can be achieved, and the 28d cubic compressive strength can reach more than 34MPa.

The present invention proposes an automatic control system for an anaerobic ammonium oxidation process, including: a denitrification contribution rate calculation subsystem, which is used to determine the denitrification contribution rate of different process denitrification paths; a mathematical model subsystem, which is used to establish a mathematical model between operating parameters and the denitrification contribution rate of the denitrification path of the exogenous anaerobic ammonium oxidation process; an operating condition optimization subsystem, which is used to obtain the control factors of dissolved oxygen, pH, and temperature, and at the same time, take energy consumption reduction measures to control membrane cleaning data and obtain sludge retention data; a mechanism analysis subsystem, which is used for the mechanism analysis of the process denitrification path of the exogenous anaerobic ammonium oxidation; a sludge yield research subsystem; a result analysis subsystem, which is used to determine the operation mode and the best combination mode of the exogenous anaerobic ammonium oxidation process; an energy saving and carbon fixation research subsystem, which is used for the energy saving and carbon fixation research of the exogenous anaerobic ammonium oxidation process. The present invention solves the problem that the parameter values ​​and process flow of the existing exogenous anaerobic ammonium oxidation process are not entirely reasonable.

The application discloses a kind of lawn type centipedegrass turf piece multilayer rack annual production technology, the technical scheme includes the following steps: erecting culture frame, laying matrix, sowing, rooting sprouting period management, turf formation stage management, pre-harvest management, turf harvesting.The technical scheme of the application, by erecting multilayer shelf in room, under the environment control of accurate temperature, light, water and fertilizer, the rapid production of centipedegrass turf can be carried out, a batch of turf can be harvested after planting for 2 months, 6 batches of turf can be harvested each year, so that the annual efficient production of centipedegrass turf is realized, turf piece is provided for land greening and ecological restoration, and the economic benefit is remarkable.