2results about How to "Achieve efficient recycling" patented technology

This invention relates to an integrated renewable fuel cell system, comprising: a URFC stack for electrolyzing water to generate hydrogen and oxygen in electrolysis mode and consuming hydrogen and oxygen to generate electricity in fuel cell mode; a gas management module including a hydrogen supply circuit, an oxygen supply circuit, and three purge gas circuits, respectively connected to the URFC stack, for providing hydrogen, oxygen, and purge gas for power generation; a water management module including a low-pressure water tank, a high-pressure water tank, a makeup water tank, and a gas-liquid separator, for providing cooling water, electrolyzed water, and their recycling; a sensing module including a pressure sensor, a flow sensor, and a temperature sensor, for acquiring system operating parameters in real time; and a circuit control module for receiving data from the sensing module and executing the linkage control of power supply and valves according to preset logic. Compared with the prior art, this invention improves the system's operational stability and the utilization rate of reactant gas and electrolyzed water by dynamically adjusting valve opening and closing and system pressure and temperature. This invention's system has advantages such as high automation, long service life, and strong environmental adaptability, and is suitable for multiple fields such as aerospace energy storage, smart grids, and high-efficiency energy conversion.

This invention provides a cultivation substrate, its preparation method, and its application, belonging to the field of tailings utilization technology. The cultivation substrate, by weight, comprises: 1-7 parts of an algae-bacterial symbiosis, 1-12 parts of modified illite tailings, and 1-22 parts of sheep manure; the algae-bacterial symbiosis includes *Chlorella vulgaris* and *Streptomyces flavus*. The cultivation substrate provided by this invention meets the requirements of standard NY / 2118-2012 for vegetable seedling substrates, improving soil physicochemical properties while also promoting plant growth and enhancing plant stress resistance. The cultivation substrate provided by this invention has advantages such as environmental friendliness and sustainable utilization, aligning with the development trend of modern agriculture, and providing a new direction for the resource utilization of illite tailings; it also achieves efficient recycling of mine tailings and agricultural waste, providing an innovative path for green agricultural development and resource utilization.