Partition type BAF (biological aerated filter)

• Main Authors: DONG ZHICHENG, HE YANG, ZHANG ZHENHUA, LIU LINDE
• Format: Patent
• Language: Chinese; English
• Published: 21.08.2018
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a partition type BAF (biological aerated filter), and belongs to the technical field of sewage treatment based on a biomembrance process. The technical scheme is that a filtertank adopts an up-flow hydraulic form, and a filter plate, a support layer, a filter material layer and a clear water layer are arranged on the bottom surface of the filter tank from bottom to top sequentially. The partition type BAF is characterized in that a square column-shaped BAF with square bottom surface is movably connected with 6 groups of partitions, each group of partitions comprises 6partition units, each partition unit is formed by one vertical partition and one inclined partition, the partition units are staggered to form each group of partitions, and the groups of partitions are staggered to form the whole square column-shaped BAF. Bubbles produced by aeration escape from an aerobic filler layer in a folding-line rising manner instead of a vertical rising manner, retentiontime of the bubbles in the