National Patent of School of Environmental Science and Engineering, Hunan University

In recent five years, a series of national invention patents and national utility model patents have been applied in this field. The main achievements are 25 national invention patents-Two-step anaerobic digestion process of municipal solid waste, anaerobic-aerobic integrated composting reactor, composite biosurfactant and its application in municipal solid waste composting, ester peptide biosurfactant and its application in municipal solid waste composting, rhamnolipid biosurfactant and its application in municipal solid waste composting, utilization of waste plastics, Method for preparing fuel oil by mixed pyrolysis of waste oil and heavy oil, catalyst for refining pyrolysis gas of waste plastics and its preparation method, deodorizer, deodorizer and its method for deodorizing garbage compost, deodorizer, landfill leachate treatment method, composting method inoculated with microbial compound microbial inoculum twice, sleeve wet dust removal and desulfurization device, solid organic waste composting device, aerobic composting method for producing organic compost by using urban organic waste, SBR automation device for aerobic granular sludge cultivation and research, aerobic granular sludge cultivation method, hydroxyacrylate etherified glycerol cyclic formal and its synthesis method, hydroxyacrylate etherified urea-formaldehyde resin, PDDA environmental protection process, tri (meth) acrylate epoxy isocyanurate and its synthesis method, method for removing free formaldehyde from hydroxyacrylate etherified amino resin, polylysine starch nanoparticles and its preparation method and application as gene carrier, Pollution-free wet recovery technology of waste lead storage battery, new process of wet arsenic extraction from arsenic-sulfur ore, four national utility model patents-anaerobic-aerobic integrated composting reactor, solid organic waste composting device, sleeve wet dust removal and desulfurization device, etc.