| 肖宇,沈志强,周岳溪,武福平.厌氧折流板反应器对分散养猪冲洗水有机物去除特性研究[J].农业环境科学学报,2015,34(10):2004-2011. |
| 厌氧折流板反应器对分散养猪冲洗水有机物去除特性研究 |
| Removal of Organics in Scattered Piggery Washing Wastewater by Anaerobic Baffled Reactor |
| 投稿时间：2015-04-20 |
| DOI：10.11654/jaes.2015.10.024 |
| 中文关键词: 厌氧折流板反应器 分散养猪 冲洗水 序批运行 溶解性有机物 |
| 英文关键词: anaerobic baffled reactor scattered piggery washing wastewater batch operation dissolved organic matter |
| 基金项目:国家"十二五"科技支撑计划项目(2012BAJ21B01-02);中国博士后科学基金(2012M520351) |
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| 中文摘要: |
| 以厌氧折流板反应器(ABR)处理分散及小规模养猪冲洗废水,对比了序批进水和连续进水时的运行性能,考察了序批进水ABR单个进水周期内污染物的去除特性,并以三维荧光光谱和离子色谱对特征有机物进行了解析.结果表明:序批和连续进水ABR的COD去除率均大于60%,但前者的去除率小于后者;COD负荷为1.40 kg·m-3·d-1时,序批ABR出水平均COD(600 mg·L-1)大于连续ABR(350 mg·L-1).序批进水COD在ABR第一格去除率最大,且进水后其去除速度快,经12 h趋于稳定.类蛋白荧光峰的变化规律与COD一致,有机物水解酸化主要发生在进水后4 h内,甲酸、乙酸和丙酸等小分子物质也主要在此期间生成. |
| 英文摘要: |
| The present study explored treatment of washing wastewater from scattered and small-scale piggeries by anaerobic baffled reactor (ABR). The operating performances of two influent patterns --sequencing batch(SB) and continuous operation(CO) were compared. The removals of pollutants by SB-ABR in an operation cycle were investigated. The signature organics were detected by three-dimensional fluorescence spectrum and ion chromatography. The removal rates of COD by SB-and CO-ABR were greater than 60%, with CO-ABR higher than SB-ABR. The average COD in the effluent of SB-ABR was 600 mg·L-1 at COD loading rate of 1.40 kg·m-3·d-1, which was greater than that of CO-ABR(350 mg·L-1). The alkalinity of SB-and CO-ABR were more than 1000 mg·L-1. The COD was mainly removed in the first grid of SB-ABR. The organics were reduced quickly during the early period, and reached a steady status after 12 h. In the SB-ABR, there were two fluorescence peaks at λEx/λEm=275 nm/340 nm and λEx/λEm=220 nm/340 nm, which represents protein-like substances, with the peak intensity decreasing along the flow path. The variation trend of the protein-like fluorescence peaks was similar to that of COD. The organics were mainly hydrolyzed within the first 4 h, and small molecular organics, such as formic acid, acetic acid and propionic acid, were mainly produced during this period. |
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