公开(公告)号：US20240182337A1

公开(公告)日：2024-06-06

申请号：US17796316

申请日：2021-05-07

Applicant: SHANDONG UNIVERSITY

Inventor： Jian ZHANG ,  Linlan ZHUANG ,  Mengting LI ,  Shuang LIANG ,  Zhen HU ,  Huijun XIE ,  Haiming WU ,  Zizhang GUO

IPC: C02F3/32 ,  C02F3/30 ,  C02F101/16

CPC classification number: C02F3/327 ,  C02F3/302 ,  C02F3/322 ,  C02F2101/16 ,  C02F2201/3222

Abstract: A system that relates to the technical field of sewage purification includes microalgae culturing pond and constructed wetland that are connected in series. A microalgae capturing filler is arranged in the microalgae culturing pond, algae-containing water obtained from microalgae capturing filler is communicated with the constructed wetland for oxygen transfer and forming algal-bacterial mutualistic symbiosis for strengthened pollutant removal, and part of captured microalgae is introduced into an anoxic denitrification functional area away from a surface in constructed wetland by flow guide pipe. Microalgae culture and sewage purification are realized in microalgae culturing pond by taking sewage as a culture medium, 80% or more of the microalgae biomasses in microalgae culturing pond are recovered with low cost, part of microalgae is introduced into the anoxic denitrification functional area away from the surface in the constructed wetland, and lytic algae cells serving as a carbon source promote denitrification in the wetland.