厌氧序批式反应器(ASBR)处理循环水养殖系统固体有机物的研究  

THE STUDY ON ANAEROBIC DIGESTION OF BIOSOILDS FROM RECIRCULATING AQUACULTURE SYSTEM BY ANAEROBIC SEQUENCING BATCH REACTOR(ASBR)

作　　者：李平[1] 杜军[1] 谭洪新[1] 罗国芝[1] 

机构地区：[1]上海海洋大学水产与生命学院,上海201306

出　　处：《水处理技术》2011年第8期86-90,共5页Technology of Water Treatment

基　　金：上海市教委科研创新基金项目(11YZ150);上海市高校创新团队项目:上海高校创新团队水产动物营养饲料与养殖环境(第2期)

摘　　要：在HRT为20 d,水温(35±1)℃的条件下,探讨了厌氧序批式反应器(ASBR)处理循环水养殖系统中产生的固体有机物(残饵和粪便)的可行性和处理效果。结果表明,在第53～59天,系统出现"洗泥"现象导致出料中各项指标出现波动。整个反应过程中pH稳定在7.01～7.45,反应器内活性污泥VSS/SS由接种时的29.28%增加至反应结束时的44.12%。在第117天系统开始产气,TCOD产气量为0.013～0.022 L.g-1。该类固体有机物经厌氧消化后有效体积减少了93.75%,有机物含量减少了41.61%,取得了一定的减量化、稳定化的效果。Laboratory experiment was conducted to investigate the feasibility and performance of an anaerobic sequencing batch reactor（ASBR） at（35±1） ℃ and 20 d hydraulic retention time（HRT）for the digestion of biosolids（remnant feed and feces） generating from the recirculating aquaculture system（RAS）.The experiment results indicated that from day 53rd to 59th,the ＂wash out＂ of sludge from the system leaded to the variation of effluent.The pH value was stable in 7.01～7.45 during the whole operation,the VSS/SS of sludge within the system increased from29.28% when inoculated to 44.12% finally.On day 117th the system began to produce biogas,TCOD gas yields between 0.013 and 0.022 L·g-1 added were achieved.The digested sludge with the volume reduction of 93.75% and stabilization of 41.61% in terms of VSS/SS comparing to the raw sludge were attained.

关 键 词：循环水养殖系统 厌氧序批式反应器 固体有机物 厌氧消化 

分 类 号：X703[环境科学与工程—环境工程]