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    Domestic sewage treatment system
    71.
    发明授权
    Domestic sewage treatment system 有权

    公开(公告)号：US12172918B2

    公开(公告)日：2024-12-24

    申请号：US17627461

    申请日：2020-08-19

    Applicant: SICHUAN UNIVERSITY ,  EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Xia Jiang ,  Fengli Gan ,  Yi Liu ,  Yuxiao Sun ,  Hualin Wang ,  Yafang Han

    IPC: C02F9/00 ,  C02F1/00 ,  C02F1/28 ,  C02F1/38 ,  C02F1/40 ,  C02F1/44 ,  C02F1/50 ,  C02F1/52 ,  C02F3/00 ,  C02F3/34 ,  C02F11/12 ,  C02F11/13 ,  C02F11/123 ,  C02F11/127 ,  C02F101/10 ,  C02F101/30 ,  C02F101/32

    Abstract: A treatment system for domestic wastewater, relating to the technical field of wastewater treatment. The treatment system comprises a primary treatment system, a secondary treatment system, and a sludge treatment system; the secondary treatment system comprises a biochemical tank (21) and a sedimentation tank (22) that are sequentially connected; the biochemical tank (21) is connected to the primary treatment system; the secondary treatment system further comprises a second cylcone separator (23) and a power pump (24); one end of the power pump (24) is connected to a sludge outlet of the sedimentation tank (22) by means of a pipeline, and the other end of the power pump (24) is connected to a second feed pipe (232) of the second cylcone separator (23); a second underflow port (233) is connected to the biochemical tank (21) by means of the pipeline; a second overflow port (234) is connected to the sludge treatment system by means of the pipeline. After active sludge is treated by the second cylcone separator (23), the activity of the active sludge is increased by at least 15%, thereby improving the utilization rate of a resource, reducing the cost of an overall treatment system, also improving degradation efficiency in the biochemical tank, and facilitating popularization.

    MANAGEMENT METHOD AND DEVICE FOR HAZARDOUS CHEMICALS, AND A CONSTRUCTION METHOD FOR A MANAGEMENT DATABASE
    74.
    发明公开
    MANAGEMENT METHOD AND DEVICE FOR HAZARDOUS CHEMICALS, AND A CONSTRUCTION METHOD FOR A MANAGEMENT DATABASE 审中-公开

    公开(公告)号：US20240296174A1

    公开(公告)日：2024-09-05

    申请号：US18556618

    申请日：2022-03-30

    Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Wenli DU ,  Yang TANG ,  Bing WANG

    IPC: G06F16/28

    CPC classification number: G06F16/285 ,  G06F16/288

    Abstract: The present invention relates to a management method and a device for hazardous chemicals and a construction method of a management database. The construction method comprises following steps: determining a plurality of entities involved in entire lifecycle of hazardous chemicals; classifying the plurality of entities to define a plurality of entity classes involved in the management database; defining a plurality of relationship classes according to one or more relationships involved between every two of the entity classes; using the relationship from one or more of the relationship classes to constrain the relationships between every two entities, so as to construct an ontology of the database; and importing actual data of the hazardous chemicals throughout their entire lifecycle into the ontology, so as to carry out instantiation of the ontology. By implementing this construction method, a management database for hazardous chemicals can be obtained, which can break the island phenomenon of multi-field data by integrating and fusing the multi-filed data throughout the entire lifecycle of hazardous chemicals, thereby achieving the effects of reasonable resource allocation, dynamic warning and supervision, and emergency linkage.

    METHOD FOR INTEGRATED UTILIZATION OF CALCIUM CHLORIDE SOLUTION AND CARBON DIOXIDE
    75.
    发明公开
    METHOD FOR INTEGRATED UTILIZATION OF CALCIUM CHLORIDE SOLUTION AND CARBON DIOXIDE 审中-公开

    公开(公告)号：US20240286916A1

    公开(公告)日：2024-08-29

    申请号：US18438051

    申请日：2024-02-09

    Applicant: East China University of Science and Technology

    Inventor： Chenglin LIU ,  Jianguo YU ,  Ying YANG ,  Yuan MA

    IPC: C01F11/18 ,  C02F1/469 ,  C02F103/34

    CPC classification number: C01F11/181 ,  C02F1/4693 ,  C01P2004/61 ,  C02F2103/34 ,  C02F2201/46115

    Abstract: The present invention provides a method for integrated utilization of a calcium chloride solution and CO2. In this method, with the calcium chloride solution and the CO2 being taken as raw materials, a water-soluble amine is added as an auxiliary agent to promote the occurrence of a mineralization reaction. As a result of crystallization following the reaction, calcium carbonate and a solution of a hydrochloride of the water-soluble amine are obtained. After the reaction is completed, the water-soluble amine is regenerated by subjecting a liquid phase resulting from separation to bipolar membrane electrodialysis, and dilute hydrochloric acid is obtained as a by-product at the same time. The method provides a novel perspective and approach to integrated utilization of calcium chloride-containing liquid waste and flue gas CO2. The water-soluble amine allows excellent mineralization, and the bipolar membrane electrodialysis enables excellent regeneration of the amine. By means of process regulation, a calcium carbonate product of high value with controlled morphology and particle size can be obtained. For applications equipped with a lime kiln and allowing recycling of calcium carbonate, such as the ammonia-soda industry, the present invention also provides a combined cycle process for carbon and calcium resources, in which calcium carbonate produced by a mineralization reaction is calcined in lieu of limestone used in the soda production process to provide the soda production process with CO2 and milk of lime, enabling recycling of carbon and calcium resources in an ammonia soda plant. The entire process is free of waste discharge, showing a promising prospect of application. It is of great significance to the fields of calcium chloride-containing liquid waste disposal and carbon emission reduction.

    Gas cooling-scrubbing apparatus and method
    79.
    发明授权
    Gas cooling-scrubbing apparatus and method 有权

    公开(公告)号：US11857897B2

    公开(公告)日：2024-01-02

    申请号：US17577177

    申请日：2022-01-17

    Applicant: East China University of Science and Technology

    Inventor： Zhishan Bai ,  Fuwei Lv ,  Xiao Dong

    IPC: B04C9/00 ,  B01D21/26 ,  B01D21/00 ,  B04C3/06

    CPC classification number: B01D21/267 ,  B01D21/0012 ,  B04C3/06 ,  B04C9/00 ,  B04C2009/004

    Abstract: The present disclosure relates to a gas cooling-scrubbing apparatus and an associated method. There is provided a gas cooling-scrubbing apparatus, comprising: a cyclone jet scrubbing unit, a spray scrubbing unit, a filtering spray unit, and a coalescing dehydration unit, wherein the cyclone jet scrubbing unit comprises a cyclone jet scrubbing monopipe (2), a cyclone jet cooling water pipe (15), a cyclone jet pipe plate (14) and a cyclone jet overflow pipe (13); wherein the spray scrubbing unit comprises a spray filtering pipe (3), a spray pipe plate (11), a spray overflow pipe (12), a scrubbing nozzle (9) and a scrubbing nozzle water pipe (10); wherein the filtering spray unit comprises a filtering bed (4), a spray head (7) and a spray water pipe (8); and wherein the coalescing dehydration unit comprises a coalescing bed (5). There is also provided a gas cooling-scrubbing method.

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