SBR工艺处理高含盐生活污水的研究  

Study on the Treatment of High Salinity Domestic Wastewater by Using SBR Process

作　　者：王洪娟[1] 于德爽[1] 马静[1] 

机构地区：[1]青岛大学环境科学与工程系,山东青岛266071

出　　处：《环境科学与管理》2006年第2期101-103,124,共4页Environmental Science and Management

摘　　要：针对海水利用产生的高含盐生活污水,试验采SBR工艺分别研究了不同海水比例的污水中低浓度和中浓度有机物的降解和去除规律、污泥沉降性能以及温度对含20%海水的污水中有机物降解速率的影响。试验结果表明,在高盐污水的生物处理系统中,污泥的驯化是关键的一步。海水盐度降低了有机物的降解速率和去除率,但两种浓度污水的出水CODcr浓度均在30～70mg/L之间,远远低于国家污水综合排放二级标准(GB8978-1996)。海水盐度使污泥体积指数降低,污泥沉降速度加快。污水处理有机物的适宜温度是20℃左右。This study was initiated to treat high salinity domestic wastewater resulting from use of seawater by SBR process. Experiments were conducted under different seawater salinity conditions to investigate such as the rule of low and middle concentration organics degrading velocity and removal, activated sludge settling characteristics and effect of the temperature on organics degrading velocity when seawater was 20% of the total domestic wastewater. Results showed that the acclimation of the activated sludge was very important and though high seawater salinity decreased organics degrading velocity and removal efficiency, the COD of the effluent was between 30-70 mg/L, which was far below the second class standard in National Integrated Wastewater Discharge Standard（GB8978-1996）. And when seawater salinity increased, the Sludge Volume Index （SVI） decreased and the settling velocity became faster.

关 键 词：海水盐度 有机物 活性污泥 SBR工艺 温度 

分 类 号：X703.1[环境科学与工程—环境工程]