Blockage-suppressing aerobic constructed wetland system and method of system for purifying sewage

• Main Authors: LI CHENG, SHI MING, ZHANG RUIBIN, TAN XIAOLIAN, ZHOU NAI, WANG LEYANG, MA ZHENJIE, PAN ZHUOXI, XI DAOGUO, PAN LONG
• Format: Patent
• Language: Chinese; English
• Published: 20.08.2019
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the field of sewage treatment, and particularly relates to a blockage-suppressing aerobic constructed wetland system and a method of the system for purifying sewage. The system comprises a filtering device, a water spray aeration device, a constructed wetland and a water collecting tank arranged in sequence in a water flow direction; the filtering device comprises a filtertank, a baffle, a grille, a sedimentation inclined plate and filter layers; the baffle is installed at the upper part of the inner wall of the filter tank and divides the filter tank into an initialfilter chamber and a reinforced filter chamber; the initial filter chamber is provided with a water inlet; the grille is obliquely arranged in the initial filter chamber in a position lower than the water inlet; the enhanced filter chamber is provided with a water outlet below the horizontal position corresponding to the water inlet; and the filter layers and the sedimentation inclined plate are arranged in the reinforced