title: Anaerobic degradation of purified terephthalic acid wastewater using a novel, rapid mass-transfer circulating fluidized bed.
abstract: The anaerobic treatability of purified terephthalic acid (PTA) wastewater in a novel, rapid mass-transfer fluidized bed reactor using brick particles as porous carrier materials was investigated. The reactor operation was stable after a short 34 day start-up period, with chemical oxygen demand (COD) removal efficiency between 65 and 75%, terephthalate (TA) removal efficiency between 60% and 70%, and system organic loading rate (OLR) increasing from 7.37 to 18.52 kg COD/m(3) d. The results demonstrate that the reactor is very efficient, and requires a low hydraulic retention time (HRT) of 8 h to remove both TA and COD from the high-concentration PTA wastewater. The system also has high resistance capacity to varied OLR.
authors.affiliation: National Bio-Chemical Engineering Technique Research Center, Nanjing University of Technology, Nanjing 210009, China.
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Feng
authors.forename: Beibei
authors.initials: B
authors.lastname: Lu
authors.forename: Yu
authors.initials: Y
authors.lastname: Jiang
authors.forename: Yinwen
authors.initials: Y
authors.lastname: Chen
authors.forename: Shubao
authors.initials: S
authors.lastname: Shen
mesh_terms: D000693:Anaerobiosis; D019149:Bioreactors; D007220:Industrial Waste; D008855:Microscopy, Electron, Scanning; D010795:Phthalic Acids / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D007220:Industrial Waste; D010795:Phthalic Acids; D014874:Water Pollutants, Chemical; C011363:terephthalic acid