Patents by Inventor Haidong HU
Haidong HU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11905192Abstract: A method for collaborative optimization control method for organic nitrogen and inorganic nitrogen in a denitrification process is provided. The method includes: establishing ASM-mDON-DIN models for simultaneous simulation of microbial dissolved organic nitrogen (mDON) and inorganic nitrogen (DIN) in denitrification processes; and selecting a corresponding ASM-mDON-DIN model according to a set carbon/nitrogen ratio to collaboratively optimize the concentration values of mDON and DIN in the effluent in the denitrification process, to obtain best process operation parameter values.Type: GrantFiled: January 29, 2022Date of Patent: February 20, 2024Assignee: NANJING UNIVERSITYInventors: Haidong Hu, Xian Cui, Kewei Liao, Lili Ding, Bing Wu, Hongqiang Ren
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Patent number: 11866355Abstract: A system for cleaning wastewater, includes: an absorption-biodegradation-denitrification (ABN) reactor, a sequential adsorption reactor, a disinfection reactor, and a sludge anaerobic fermentation reactor. The ABN reactor is an integrated reactor including: a biosorption tank, an intermediate sedimentation tank, a biologically-enhanced degradation tank, a denitrification biofilter, and a secondary sedimentation tank. The pretreated wastewater is introduced into the ABN reactor for removal of chemical oxygen demand, nitrogen and phosphorus; the ABN reactor effluent is introduced into the sequential adsorption reactor for the removal of high-risk pollutants; the sequential adsorption reactor effluent is introduced into the disinfection reactor for the elimination of viruses and other pathogenic microorganisms; the sludge produced by the ABN reactor is introduced into the anaerobic sludge fermentation reactor for alkaline fermentation.Type: GrantFiled: June 9, 2021Date of Patent: January 9, 2024Assignee: NANJING UNIVERSITYInventors: Haidong Hu, Kewei Liao, Sijia Ma, Yuanji Shi, Hongqiang Ren, Xuxiang Zhang, Bing Wu, Jinfeng Wang
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Patent number: 11782025Abstract: The disclosure provides a method for evaluation of removal of nitrogen-containing organic matter from the wastewater.Type: GrantFiled: March 31, 2021Date of Patent: October 10, 2023Assignee: NANJING UNIVERSITYInventors: Haidong Hu, Kewei Liao, Jinfeng Wang, Bing Wu, Hongqiang Ren
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Publication number: 20230245730Abstract: A method for evaluating the biodegradability of sewage through machine learning, includes: (1) collecting molecular composition information and biodegradability data of organic molecules in a sewage sample; (2) establishing a model for predicting biodegradability of organic molecules in sewage through machine learning; (3) measuring the molecular composition information of organic molecules in sewage from a target sewage plant; and (4) predicting, according to the model established in (2), the biodegradability of the organic molecules in the sewage from the target sewage plant.Type: ApplicationFiled: January 29, 2022Publication date: August 3, 2023Inventors: Haidong HU, Huazai CHENG, Bing WU, Hongqiang REN
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Patent number: 11703495Abstract: A method for identifying and analyzing dissolved organic nitrogen of different sources in wastewater includes extracting DON in wastewater to obtain a DON extract, detecting mass spectrum peaks in the DON extract, pre-processing the spectral data of the wastewater sample; constructing a network relationship of the substance reaction in the wastewater sample; screening the substance reaction relationship of DON; and determining different sources of DON.Type: GrantFiled: September 23, 2021Date of Patent: July 18, 2023Assignee: NANJING UNIVERSITYInventors: Haidong Hu, Kewei Liao, Hongqiang Ren
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Publication number: 20230222312Abstract: A method for evaluating bioavailability of organic nitrogen in sewage through machine learning, includes: collecting the molecular composition information and bioavailability data of organic nitrogen in a sewage sample; establishing a model for predicting bioavailability of organic nitrogen in sewage through machine learning; measuring the molecular composition information of organic nitrogen in sewage from a target sewage plant; and predicting, according to the model, the bioavailability of the organic nitrogen in the sewage from the target sewage plant.Type: ApplicationFiled: January 29, 2022Publication date: July 13, 2023Inventors: Haidong HU, Huazai CHENG, Kewei LIAO, Jinfeng WANG, Bing WU, Hongqiang REN
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Publication number: 20230212045Abstract: A method for collaborative optimization control method for organic nitrogen and inorganic nitrogen in a denitrification process is provided. The method includes: establishing ASM-mDON-DIN models for simultaneous simulation of microbial dissolved organic nitrogen (mDON) and inorganic nitrogen (DIN) in denitrification processes; and selecting a corresponding ASM-mDON-DIN model according to a set carbon/nitrogen ratio to collaboratively optimize the concentration values of mDON and DIN in the effluent in the denitrification process, to obtain best process operation parameter values.Type: ApplicationFiled: January 29, 2022Publication date: July 6, 2023Inventors: Haidong HU, Xian CUI, Kewei LIAO, Lili DING, Bing WU, Hongqiang REN
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Publication number: 20220356094Abstract: A system for cleaning wastewater, includes: an absorption-biodegradation-denitrification (ABN) reactor, a sequential adsorption reactor, a disinfection reactor, and a sludge anaerobic fermentation reactor. The ABN reactor is an integrated reactor including: a biosorption tank, an intermediate sedimentation tank, a biologically-enhanced degradation tank, a denitrification biofilter, and a secondary sedimentation tank. The pretreated wastewater is introduced into the ABN reactor for removal of chemical oxygen demand, nitrogen and phosphorus; the ABN reactor effluent is introduced into the sequential adsorption reactor for the removal of high-risk pollutants; the sequential adsorption reactor effluent is introduced into the disinfection reactor for the elimination of viruses and other pathogenic microorganisms; the sludge produced by the ABN reactor is introduced into the anaerobic sludge fermentation reactor for alkaline fermentation.Type: ApplicationFiled: June 9, 2021Publication date: November 10, 2022Inventors: Haidong HU, Kewei LIAO, Sijia MA, Yuanji SHI, Hongqiang REN, Xuxiang ZHANG, Bing WU, Jinfeng WANG
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Publication number: 20220349856Abstract: A device for in-situ measuring settleability of activated sludge includes a sample chamber, an ultrasonic time domain reflectometer, a magnetic stirrer, an ultrasonic probe, a sample inlet, a sample outlet, and a stagnant zone. The sample chamber is configured to hold an activated sludge sample, and the ultrasonic time domain reflectometer is configured to measure the settling characteristics of the activated sludge. The stagnant zone is disposed in the sample chamber. The sample inlet and the sample outlet communicate with the sample chamber. The stagnant zone includes a top part, a sidewall, and a bottom part. The sample inlet is connected to the top part of the stagnant zone. The sample outlet is connected to the sidewall of the stagnant zone. The magnetic stirrer is disposed at the bottom part of the stagnant zone. The ultrasonic probe is disposed on the top part of the stagnant zone.Type: ApplicationFiled: April 29, 2022Publication date: November 3, 2022Inventors: Jinfeng WANG, Deyuan DONG, Haidong HU, Bing WU, Hongqiang REN
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Publication number: 20220136998Abstract: The disclosure provides a method for evaluation of removal of nitrogen-containing organic matter from the wastewater.Type: ApplicationFiled: March 31, 2021Publication date: May 5, 2022Inventors: Haidong Hu, Kewei Liao, Jinfeng Wang, Bing Wu, Hongqiang Ren
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Publication number: 20220042963Abstract: A method for identifying and analyzing dissolved organic nitrogen of different sources in wastewater includes extracting DON in wastewater to obtain a DON extract, detecting mass spectrum peaks in the DON extract, pre-processing the spectral data of the wastewater sample; constructing a network relationship of the substance reaction in the wastewater sample; screening the substance reaction relationship of DON; and determining different sources of DON.Type: ApplicationFiled: September 23, 2021Publication date: February 10, 2022Inventors: Haidong HU, Kewei LIAO, Hongqiang REN
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Patent number: 11014835Abstract: A method of measuring concentration of dissolved organic nitrogen in sewage. The method includes: filtering a sewage sample using a filter membrane; measuring the concentrations of total dissolved nitrogen (TDN), ammonia nitrogen (NH4+), and nitric nitrogen (NO3?) in the sewage sample, respectively designated as CTDN(I), CNH4+(I) and CNO3?(I); calculating the ratios of (CNH4+(I)+CNO3?(I))/CTDN(I) and CNO3?(I)/CNH4+(I), and according to the ratios, calculating the concentration of dissolved organic nitrogen (DON) in the sewage sample.Type: GrantFiled: June 15, 2020Date of Patent: May 25, 2021Assignee: NANJING UNIVERSITYInventors: Hongqiang Ren, Haidong Hu, Jinju Geng, Lili Ding, Hui Huang
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Publication number: 20210081587Abstract: A method for building a predictive model of mDON in wastewater, including a) acquiring a kinetics associated with production and consumption of a mDON of an activated sludge system, and importing a kinetic expression of the mDON into a conventional activated sludge model No. 1 (ASM1) to build a kinetic equation for the mDON; b) inputting component variables, parameter variables, model matrices, process rate equation and operating parameters of a predictive model into a simulation software AquaSim to build an ASM-mDON model; c) inputting initial values of the component variables and the parameter variables into the simulation software AquaSim for model initialization; d) acquiring initial mDON kinetic and sensitivity analysis results, selecting corresponding parameters, calibrating kinetic and stoichiometric parameters of the ASM-mDON model using a parameter estimation function of the simulation software AquaSim; and e) replacing the initial values of the ASM-mDON model with optimal values obtained in d).Type: ApplicationFiled: September 17, 2020Publication date: March 18, 2021Inventors: Haidong HU, Kewei LIAO, Hongqiang REN
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Patent number: 10935294Abstract: A bottle with an ice cube mould, comprises a bottle body (1) with a neck (111) and a lid (2), the bottle body (1) has two ice-making plates (3) opposite with each other, at least one of the two ice-making plates (3) has a plurality of recesses (31), and the two ice-making plates (3) are capable of moving relative to each other; when the two ice-making plates (3) are at the closed state, two recesses facing each other (31) form an ice-making space, and a water flow channel for guiding water coming from the water inlet (32) to the ice-making space is formed between the two ice-making plates (3); when the two ice-making plates (3) are at the opened state, a chamber (A) of the bottle body (1) is defined between the two ice-making plates (3), and ice cubes formed inside the recesses drop into the chamber (A) of the bottle body (1). The bottle has both an ice-making function and a water-containing function, and it is sanitary to make ice cubes and also convenient to take the ice cubes out.Type: GrantFiled: July 16, 2020Date of Patent: March 2, 2021Assignee: Ningbo Vacane Household Commodities Co., Ltd.Inventors: Chenning Li, Haidong Hu
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Publication number: 20200308027Abstract: A method of measuring concentration of dissolved organic nitrogen in sewage. The method includes: filtering a sewage sample using a filter membrane; measuring the concentrations of total dissolved nitrogen (TDN), ammonia nitrogen (NH4+), and nitric nitrogen (NO3?) in the sewage sample, respectively designated as CTDN(I), CNH4+(I) and CNO3?(I); calculating the ratios of (CNH4+(I)+CNO3?(I))/CTDN(I) and CNO3?(I)/CNH4+(I), and according to the ratios, calculating the concentration of dissolved organic nitrogen (DON) in the sewage sample.Type: ApplicationFiled: June 15, 2020Publication date: October 1, 2020Inventors: Hongqiang REN, Haidong HU, Jinju GENG, Lili DING, Hui HUANG
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Patent number: 10556814Abstract: A denitrification biofilter device, including: a regulating pool, a reactor body, a water tank, a first doser, a second doser, a backwash pump, a water inlet pump, and a blower. The regulating pool includes a raw water inlet and a water outlet. The reactor body includes a uniform water distributor, a filler layer, a buffer layer, a filter layer, a supporting layer, a filler supporting plate, a backwash water outlet, a treated water outlet, and a backwash water inlet. The treated water outlet and the backwash water inlet are disposed at the bottom of the reactor body and are connected to the water tank via pipes. The filler layer is filled with zeolites having a grain size of between 4 and 8 mm, a density of between 1.9 and 2.6 g/cm3, a porosity greater or equal to 48%, and a specific surface area of between 570 and 670 m2/g.Type: GrantFiled: August 27, 2014Date of Patent: February 11, 2020Assignee: NANJING UNIVERSITYInventors: Hongqiang Ren, Haidong Hu, Jinju Geng, Ke Xu
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Publication number: 20190178803Abstract: A method of measuring concentration of dissolved organic nitrogen in sewage. The method includes: filtering a sewage sample using a filter membrane; measuring the concentrations of total dissolved nitrogen (TDN), ammonia nitrogen (NH4+), and nitric nitrogen (NO3?) in the sewage sample, respectively designated as CTDN(I), CNH4+(I) and CNO3?(I); calculating the ratios of (CNH4+(I)+CNO3?(I))/CTDN(I) and CNO3?(I)/CNH4+(I), and according to the ratios, calculating the concentration of dissolved organic nitrogen (DON) in the sewage sample.Type: ApplicationFiled: February 12, 2019Publication date: June 13, 2019Inventors: Hongqiang REN, Haidong HU, Jinju GENG, Lili DING, Hui HUANG
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Publication number: 20150108066Abstract: A denitrification biofilter device, including: a regulating pool, a reactor body, a water tank, a first doser, a second doser, a backwash pump, a water inlet pump, and a blower. The regulating pool includes a raw water inlet and a water outlet. The reactor body includes a uniform water distributor, a filler layer, a buffer layer, a filter layer, a supporting layer, a filler supporting plate, a backwash water outlet, a treated water outlet, and a backwash water inlet. The treated water outlet and the backwash water inlet are disposed at the bottom of the reactor body and are connected to the water tank via pipes. The filler layer is filled with zeolites having a grain size of between 4 and 8 mm, a density of between 1.9 and 2.6 g/cm3, a porosity greater or equal to 48%, and a specific surface area of between 570 and 670 m2/g.Type: ApplicationFiled: August 27, 2014Publication date: April 23, 2015Inventors: Hongqiang REN, Haidong HU, Jinju GENG, Ke XU