Wastewater near-zero discharge device and process taking anaerobic MBR (membrane bioreactor) and forward osmosis as cores

• Main Authors: XIAO CHENGBIN, WANG QINGYUN, ZHAO BIN, WU SHOUREN, HE MINXIA, XIE YONG, GU CHUANG
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a wastewater near-zero discharge device and process taking anaerobic MBR and forward osmosis as cores, the device comprises a wastewater collection unit, the wastewater collection unit is connected with an anaerobic MBR unit, the anaerobic MBR unit is respectively connected with a biogas utilization unit, a sludge treatment unit and a forward osmosis unit, and the forward osmosis unit is connected with the biogas utilization unit. The forward osmosis unit is respectively connected with the concentrated water evaporation unit and the standard production water recycling or discharging unit, and the concentrated water evaporation unit is respectively connected with the forward osmosis unit, the standard production water recycling or discharging unit and the evaporation crystal substance treatment unit. According to the invention, anaerobic MBR and forward osmosis technologies are taken as cores for coupling to form a novel high-salt and high-concentration organic wastewater treatment proc