本文選題：厭氧折流板反應(yīng)器 + 模擬畜禽養(yǎng)殖廢水��； 參考：《環(huán)境工程學(xué)報(bào)》2017年07期

【摘要】：研究了厭氧折流板反應(yīng)器(ABR)處理模擬畜禽養(yǎng)殖廢水的快速啟動(dòng)過(guò)程與運(yùn)行條件的優(yōu)化。通過(guò)接種厭氧顆粒污泥、固定停留時(shí)間、逐步升高進(jìn)水負(fù)荷的方式進(jìn)行快速啟動(dòng);64 d后,ABR的有機(jī)負(fù)荷(OLR)達(dá)到5.7 kg COD·(m3·d)~(-1),COD去除率為98%,表明快速啟動(dòng)成功。ABR各格室中成熟顆粒污泥的濃度在7.14~26.17 g·L~(-1)之間,中位直徑從開(kāi)始啟動(dòng)時(shí)的0.89 mm增長(zhǎng)到1.18~1.58 mm,平均增長(zhǎng)速度為7.28×10-3mm·d~(-1)。通過(guò)16Sr DNA、PCR-DGGE技術(shù)對(duì)ABR的成熟顆粒污泥的微生物群落進(jìn)行分析,發(fā)現(xiàn)了序列最相似的產(chǎn)酸菌包括:Raoultella ornithinolytica、Uncultured Clostridiales bacterium、Staphylococcus sp.、Propionibacterium sp.、Uncultured Acidobacteria bacterium、Brevibacterium casei等,產(chǎn)氫菌Uncultured Clostridium sp.等,以及產(chǎn)甲烷菌Uncultured Firmicutes bacterium等,且這些微生物從ABR第1格室到第5格室呈現(xiàn)種類(lèi)和豐度依次遞減的趨勢(shì),不同格室中微生物群落發(fā)生了演替。在水力停留時(shí)間(HRT)24 h,運(yùn)行溫度(32±1)℃時(shí)ABR處理模擬畜禽養(yǎng)殖廢水的效果較好。
[Abstract]:The rapid start-up process and operation conditions of anaerobic baffle reactor (ABR) for the treatment of simulated livestock and poultry wastewater were studied. By inoculating anaerobic granular sludge, fixed residence time, After 64 days of rapid start-up, the organic load of ABR reached 5.7 kg COD / m ~ 3 / d ~ (-1) and the COD removal rate was 98, which indicated that the concentration of mature granular sludge in each compartment of rapid start-up was 7.14 ~ 26.17 g / L ~ (-1), and the COD removal rate of ABR was 5.7kg / m ~ (3) / m ~ (-1), which indicated that the concentration of matured granular sludge in each compartment was 7.14 ~ 26.17 g / L ~ (-1). The median diameter increased from 0.89 mm at the beginning of start-up to 1.18 鹵1.58 mm, with an average growth rate of 7.28 脳 10-3mm DX ~ (-1). The microbial community of mature granular sludge of ABR was analyzed by 16Sr DNA-PCR-DGGE technique. It was found that the most similar acid-producing bacteria of ABR were: 1: Raoultella ornithinolytica. unculturated Clostridiales sp. Uncultivated Acidobacteria bacterium Brevibacterium casei, and Uncultured Clostridium sp.. The species and abundance of these microbes decreased from the first compartment of ABR to the fifth compartment. Under the condition of HRT for 24 h and operating temperature of 32 鹵1 鈩，

本文編號(hào)：1893068