公开(公告)号：US20210129408A1

公开(公告)日：2021-05-06

申请号：US16761315

申请日：2017-11-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Xie QUAN ,  Yanjun MAO ,  Shuo CHEN ,  Hongtao YU ,  Yaobin ZHANG

IPC: B29C48/08 ,  B29B7/00 ,  B29C48/92 ,  B29C48/00 ,  B29B13/04 ,  B29B13/02 ,  C02F3/10 ,  B29B9/04

Abstract: The invention, belonging to the field of biological treatment of pollutants and functional materials, presents a method for the preparation of biofilm carrier with biochar fixed by thermoplastic resin. Extrusion grade polyethylene/polypropylene particles are used as the basic material. One or some combination of plant biochar, straw biochar, rice husk biochar, shell biochar, excess sludge and animal waste biochar are used as the functional material. The biofilm carrier with biochar fixed by thermoplastic resin is prepared by the screw extrusion process, which is a simple, flexible and controllable method, and possesses strong adaptability. The reactor with these biofilm carriers has high removal efficiency of refractory organic pollutants.

公开(公告)号：US20200071214A1

公开(公告)日：2020-03-05

申请号：US16611151

申请日：2018-02-05

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Xie QUAN ,  Yanping SHI ,  Shuo CHEN ,  Yaobin ZHANG ,  Tao LIU

IPC: C02F3/28

Abstract: The present disclosure provides an electron donor biofilm carrier and preparation method thereof. The electron donor biofilm carrier is mainly used in anaerobic or anoxic suspended carrier biofilm technologies. Electron donors with a standard electrode potential below 100 My are used as the functional material for preparation of electron donorbiofilm carrier. The electron donor biofilm carrier may contribute to the enrichment of the biofilm functional bacteria and the improvement on treatment performance of the anaerobic or anoxic suspended carrier biofilm reactor.

公开(公告)号：US20200156975A1

公开(公告)日：2020-05-21

申请号：US16621226

申请日：2018-03-08

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Xie QUAN ,  Yanjun MAO ,  Yaobin ZHANG ,  Shuo CHEN

IPC: C02F3/30 ,  C02F3/10 ,  C02F3/20 ,  C02F101/10

Abstract: A method of upgrading the activated sludge process based on functional suspended carriers in the wastewater biological treatment process. The reaction zone of the original activated sludge process is divided into an aerobic zone, anoxic zone, first aerobic zone and second aerobic zone without increasing the footprint and extending the original process. A certain amount of functional suspended carriers is added in each reactor according to the treatment requirements, and influent diversion is used, in order to improve the pollutant removal performance of the modification process. Furthermore, the effluent quality can meet the requirements of discharge standards. This method is especially suitable for the upgrading of built wastewater treatment plants.