英语翻译Performance of a franular-bed anaerobic baffled reactor

英语翻译
Performance of a franular-bed anaerobic baffled reactor (GRABBR) treating whisky distillery wastewater
J.C.Akunna*,M.Clark
Abstract
This paper reports the performance of a granular-bed anaerobic baffled reactor (GRABBR) used in the treatment of a whisky distillcry wastewater.The results reveal that the system was very effective in the treatment of the high-strength wastewater.Its effectiveness stemmed from process stability created by phase separation promoed by the reactor configuration .It combined the advantages of baffled reactor systems and upflow anaerobic sludge blanked (UASB) systems.Up to 80%COD(or 90% BOD) removal was observed for an organic loading of 4.75kg COD/m[3] day .It was also found that acidogens were mostly non-granular while methanogens wee granular.The GRABBR encouraged phase separation,and consequently the establishmfent of separate zone for granular and non-granular sludge.The system also showed very high solids retention with effluent suspended solids concentration of about 80mg/l for all organic and hydraulic conditions studied.This was attributed to the occurrence of granular methanogens in zones (or compartments) dowstream of zones occupied by non-granular acidogens.
2000 Elsevier Science Lid All rights reserved.
1.Introduction
Over the past twenty years there has been an increasing demand for more eddicient systems for the treatment of wastewater due to increasingly stringent discharge standers now sidely adopted by various national and international agencies.Anaerobic digestion has proven over recent years to be a better alternative to aerobic processes,especially for the treatment of high-strengh wastewaters.The increased utilisation of anaerobic systems has been associated with the development of high-rate reactors that are able to separte hydraulic roetention time (HRT)from solid retention time (SRT).It is this separation that allows relatively slow growing anaerobic micro-organisms to remain within the reator independently of thet flow of wastewater.This allows higher volumetric loads and produes significantly enhanced removal efficiencies.
One of the many types of high-rate anaerobic reators presently attracting growing interests is the anaerobic baffled reator(ABR)(Polprasert et al.,1992;Bae et al.,1997;Holte et al.,1997;Nachaiyasit and Stuckey,1997a,b).The numerous advantages of ABR systems and their design and performance characteristics are well documented in a recent review by Barber and Stuckey(1999).
The most popular high-rate annaerobic reator configuration in the world today is the upflow anaerobic sludge blandet(UASB),with many existing full-scale reators for the treatment of wastewaters from the food and beverages industries(Cheng et al.,1990;Lettinga and Hulshoffpol,1992;Fang et al.,1994;Barer and Stuckey ,1999 ).The success of the UASB depends on the for

表现一franular床厌氧折流板反应器（ grabbr ）治疗威士忌的酒厂废水
林景akunna * ,米克拉克
摘要
本文报道的表现,颗粒床厌氧折流板反应器（ grabbr ）常用于治疗1威士忌distillcry废水结果表明,该系统是非常有效的治疗高强度wastewater.its的成效,源于过程稳定所造成的相分离promoed由反应器的配置,它结合的优势,折流板反应器系统和上流式厌氧污泥blanked （上流式厌氧污泥床） systems.up至80 ％的COD （或90 ％的生化需氧量）去除率观察为一个有机的载货四点七五公斤鳕鱼/米[ 3 ]天,这是还发现,acidogens大多非颗粒,而甲烷凌晨granular.the grabbr鼓励相分离,并因此establishmfent分开区颗粒和非颗粒sludge.the系统还显示,非常高固保留符合放流水悬浮固体浓度约80 mg / L的所有有机和水力条件studied.this的主要原因是发生颗粒甲烷在区（或隔间） dowstream区所占用的非acidogens颗粒.
2000年Elsevier公司科学盖子,保留所有权利.
1.introduction
在过去二十年已日益增加的需求,为更多的eddicient系统,废水处理,由于日益严格的排放standers现在sidely通过各个国家和国际agencies.anaerobic消化已经证明,近年来成为一个更好的选择,以有氧进程,特别是用于治疗高强度wastewaters.the增加使用率,厌氧系统已经与发展的高倍率反应堆能够separte液压roetention时间（雌激素）由固体停留时间（泥龄） ,这是这一分离,允许相对缓慢,越来越多的厌氧微有机体留在reator独立thet流动wastewater.this允许较高的容积负荷和produes显着提高去除率.
其中的许多类型的高效厌氧reators目前吸引越来越多的利益,是厌氧折流板reator （听性脑干反应） （ polprasert等,1992年;裴勇俊等人,1997年; holte等人,1997年; nachaiyasit和stuckey ,1997 ,b ）款.众多的优势,听性脑干反应系统和他们的设计和性能特点是有案可稽的在最近一次的检讨是理发及stuckey （ 1999年） .
最热门的高倍率annaerobic reator配置在当今世界上是上流式厌氧污泥blandet （上流式厌氧污泥床） ,与现有的许多全职规模reators用于治疗废水从食品和饮料工业（程等人,1990年; lettinga和hulshoffpol ,1992年;芳等人,1994年;钻具和stuckey ,1999年） .就看为成功的上流式厌氧污泥床,