High-rate aerobic treatment of winery wastewater using bioreactors with free and immobilized activated sludge

被引：4
|
作者：
Petruccioli, M
Duarte, JC
Federici, F
机构：
[1] Univ Tuscia, Dipartimento Agrobiol & Agrochim, I-01100 Viterbo, Italy
[2] INETI, Dept Biotecnol, P-1649038 Lisbon, Portugal
来源：
JOURNAL OF BIOSCIENCE AND BIOENGINEERING | 2000年 / 90卷 / 04期
关键词：
winery wastewater; bioreactor; aerobic treatment; free activated sludge; immobilized activated sludge;
D O I：
10.1016/S1389-1723(01)80005-0
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
COD (chemical oxygen demand) removal rate and efficiency of winery wastewater (WW) aerobic treatments were evaluated in an air-bubble column bioreactor using self-adapted microbial populations either free or im mobilized on polyurethane particles and in a packed-bed bioreactor immobilized oh Raschig rings. The bioreactors were fed continuously for up to 12 months using WW of different origins and with different pollution loads (COD range, 0.8-11.0 kg.m(-3)): the maximum loading rate was approx. 8.8 kg-COD m(-3).d(-1). The highest COD removal rate (6.6 kg.m(-3).d(-1)) was obtained with free activated sludge in the bubble column bioreactor; treatment efficiency and hydraulic retention time were >90% and approx. 0.8 d, respectively. The microbial populations in the three reactors were characterized.
引用
收藏
页码：381 / 386
页数：6
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