Premium
Feasibility study and CFD‐aided design for a new type oxidation ditch based on airlift circulation
Author(s) -
Xu g,
Fan Long,
Pang Hongtao,
Shi Hanchang
Publication year - 2010
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20335
Subject(s) - airlift , oxidation ditch , aeration , environmental science , computational fluid dynamics , full scale , marine engineering , mixing (physics) , ditch , fluidized bed , process engineering , engineering , waste management , environmental engineering , computer science , bioreactor , chemistry , aerospace engineering , structural engineering , physics , ecology , biology , organic chemistry , quantum mechanics
A new type oxidation ditch, airlift oxidation ditch (ALOD), was designed based on the research about airlift reactors and fluidized beds. Three important functions: propulsion, oxygenation, and mixing, can be achieved simultaneously. The flow in this ALOD was simulated for the purpose of feasibility verification and preliminary design. The influences of the relative location of the clapboards, the distance between clapboard and surface, as well as the aerator array were discussed. A bench‐scale reactor was built to test the performance of the ALOD. All results provide evidence for the potential use of ALOD in municipal wastewater treatment.