公开(公告)号：US20240321403A1

公开(公告)日：2024-09-26

申请号：US18605776

申请日：2024-03-14

Applicant: Harbin Institute of Technology

Inventor： Yu TIAN ,  Huihang SUN ,  Haoran ZHANG ,  Yiming MENG ,  Nanqi REN

IPC: G16C20/20 ,  G06Q10/04

CPC classification number: G16C20/20 ,  G06Q10/04

Abstract: A method of determining nitrous oxide emission of a river based on land-river-atmosphere simulation, includes the steps of: obtaining nitrogen emission from land in each region; dividing the nitrogen emission into a prediction set and a test set; using nitrogen emission prediction set, and geographical variables and climate variables under the nitrogen emission prediction set to process RF regression model training to obtain a trained RF regression model, using nitrogen emission test set, and geographical variables and climate variables under the nitrogen emission test set to process RF regression model training to obtain a trained RF regression model, and outputting a river water quality concentration of each sub-basin in each region; obtaining river hydrological parameters of each sub-basin, inputting the river hydrological parameters and river water quality concentration of each sub-basin to an air-water interface gas exchange model to obtain a total river N2O emission in each sub-basin.

公开(公告)号：US20230322601A1

公开(公告)日：2023-10-12

申请号：US18299366

申请日：2023-04-12

Applicant: Harbin Institute of Technology

Inventor： Yu TIAN ,  Junjie CHEN ,  Lipin LI ,  Wei ZHAN

IPC: C02F9/00

CPC classification number: C02F9/00 ,  C02F3/302

Abstract: An integrated equipment and treatment method for synchronous ecological treatment of domestic sewage and sludge, the equipment includes a one-piece box-shaped main body divided into several tank compartments which includes an anaerobic tank, a sludge reduction and denitrification tank, an aerobic tank, a sedimentation tank, and a disinfection tank, an inlet pipe for sewage and sludge entrance and an outlet pipe for exit of effluent after treatment. The sludge reduction and denitrification tank is equipped with variable microporous aeration pipes, worm fillers and multi-functional water quality online detectors. The aerobic tank is equipped with aeration pipeline components and DO online detectors. The sewage and sludge are guided to passing through the different tank compartments in order for simultaneous sewage treatment and sludge reduction. The removal rate of total nitrogen is as high as 85%, and the simultaneous reduction effect of sludge can reach more than 60%.