title: The stability of aerobic granular sludge treating municipal sludge deep dewatering filtrate in a bench scale sequencing batch reactor.
abstract: Inoculated with mature aerobic granular sludge in a sequencing batch reactor, gradually increasing the proportion of municipal sludge deep dewatering filtrate in influent, aerobic granular sludge was domesticated after 84 days and maintained its structure during the operation. The domesticated AGS was yellowish-brown, dense and irregular spherical shape, average size was 1.49 mm, water content and specific density were 98.13% and 1.0114, the SVI and settling velocity were 40 ml/g and 46.5m/h. After 38 days, NO3(-)-N accumulated obviously in the reactor as lack of carbon sources. When adding 1-3g solid CH3COONa at 4.5 and 5.5h of each cycle from the 57th day, the removal rate of TN rose to above 90% after 20 days, where effective COD removal and denitrification were realized in a single bioreactor. Finally, the removal rates of COD, TP, TN and NH4(+)-N were higher than 95%, 88%, 96% and 99%.
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Bei
authors: B
authors: Long
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China. Electronic address: 15007173775@163.com.
authors: Chang-Zhu
authors: CZ
authors: Yang
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Wen-Hong
authors: WH
authors: Pu
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China. Electronic address: jkyang@mail.hust.edu.cn.
authors: Jia-Kuan
authors: JK
authors: Yang
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Ya-Fei
authors: YF
authors: Shi
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Jing
authors: J
authors: Wang
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Jun
authors: J
authors: Bai
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Xuan-Yue
authors: XY
authors: Zhou
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Guo-Sheng
authors: GS
authors: Jiang
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Chun-Yang
authors: CY
authors: Li
authors: College of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
authors: Fu-Biao
authors: FB
authors: Liu
mesh_terms: D000332:Aerobiosis; D000641:Ammonia / Q000302:isolation & purification; D061249:Batch Cell Culture Techniques / Q000295:instrumentation*; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000382:microbiology*; D002681:China; D002947:Cities; D005374:Filtration / Q000295:instrumentation*; D009584:Nitrogen / Q000302:isolation & purification; D010316:Particle Size; D010758:Phosphorus / Q000302:isolation & purification; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000302:isolation & purification; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
chemical_list: D000641:Ammonia; D009584:Nitrogen; D010758:Phosphorus; D012722:Sewage; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Aerobic granular sludge; Denitrification; Municipal sludge deep dewatering filtrate; Sequencing batch reactor; Stability