4 results about "High carbon" patented technology

This invention relates to a method for the simultaneous capture of carbon and phosphorus in wastewater. It addresses the problems of high aeration energy consumption, long hydraulic retention time, low phosphorus removal rate, and high carbon, ammonia, and phosphorus levels in existing wastewater treatment processes. The method utilizes the aerobic phosphorus absorption characteristics of microorganisms, employing tightly bound EPS (extracellular polymeric substances) to rapidly store and release phosphorus, capturing it in the sludge phase. This simultaneously and rapidly reduces COD and total phosphorus in the wastewater to low levels, achieving a COD removal rate of over 70%. Furthermore, the proportion of carbon captured and converted into the sludge phase reaches 30%–37%, while the proportion of organic matter oxidized to CO2 is only 22%–31%, resulting in an effective phosphorus capture rate of 70%–75%, achieving highly efficient capture and removal of both phosphorus and organic matter. Simultaneously, for effluent treatment with irrigation potential, the method achieves phosphorus capture ratio control based on efficient carbon capture, thereby obtaining effluent with low COD concentration and dynamically adjustable nitrogen-to-phosphorus ratio to meet target irrigation needs.

A high-carbon hot-rolled steel sheet and a method for manufacturing the high-carbon hot-rolled steel sheet are provided. The present invention is a high-carbon hot-rolled steel sheet having a particular chemical composition. The microstructure of the steel sheet includes ferrite, cementite, and pearlite that accounts for 6.5% or less of the entire microstructure by area fraction. Regarding the cementite, the proportion of the number of cementite grains having an equivalent circle diameter of 0.1 µm or less to the total number of cementite grains is 20% or less, the average cementite grain size is 2.5 µm or less, and the cementite accounts for 3.5% or more and 10.0% or less of the entire microstructure by area fraction. The average concentration of solute B in a region extending from a surface layer to a depth of 100 µm is 10 mass ppm or more. The average concentration of N present as AlN in the region extending from the surface layer to the depth of 100 µm is 70 mass ppm or less.

Providing a process and system for converting biomass into high-carbon bioreagents suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to produce hot pyrolysis solids, condensable vapors, and non-condensable gases, followed by separation of the vapors and gases and cooling of the hot pyrolysis solids in the presence of an inert gas. Additives may be introduced during the process or combined with the reagent, or both. The bioreagent may contain at least 70 wt%, 80 wt%, 90 wt%, 95 wt%, or more total carbon on an anhydrous basis. The bioreagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on an anhydrous basis. The bioreagent may be formed into a powder or structure.