| 覆膜人工滤层干化床处理城市污泥的试验研究 |
| |
| 引用本文： | 张智,袁绍春,胡坚,赵冀平,喻一萍. 覆膜人工滤层干化床处理城市污泥的试验研究[J]. 中国给水排水, 2009, 25(3) |
| |
| 作者姓名： | 张智 袁绍春 胡坚 赵冀平 喻一萍 |
| |
| 作者单位： | 1. 重庆大学三峡库区生态环境教育部重点实验室,重庆,400045
2. 镇江市给排水管理处,江苏,镇江,212002 |
| |
| 摘 要： | 通过一体化竖式强化渗滤自然干化与消化反应器的现场试验,考察覆膜人工滤层干化床处理镇江征润州污水处理厂剩余污泥的效果并对其进行评价.干化床的滤层由50 cm厚的砾石层[粒径分别为(4～8)、(10～20)、(50～80)min,相应的厚度分别为10、20、20 cm]构成.结果表明:干化床截留了98.5%的固体物质和99.9%的细菌,污泥产量为0.036 m3干泥/m3生污泥,渗滤液体积占进泥量的74.4%;污泥含水率降至86%,有机质含量为40%,可对其进行堆肥化处理.建议在气候干爽、土地资源丰富的地区采用覆膜人工滤层干化床处理污泥.
|
| 关 键 词： | 城市污泥 干化床 自然干化与消化 含水率 效果评价 |
Study on Municipal Sludge Treatment by Film-covered Constructed Filter Drying Beds |
| |
| ZHANG Zhi,YUAN Shao-chun,HU Jian,ZHAO Ji-ping,YU Yi-ping. Study on Municipal Sludge Treatment by Film-covered Constructed Filter Drying Beds[J]. China Water & Wastewater, 2009, 25(3) |
| |
| Authors: | ZHANG Zhi YUAN Shao-chun HU Jian ZHAO Ji-ping YU Yi-ping |
| |
| Affiliation: | 1.Key Laboratory of Three Gorges Reservoir Region's Eco-Environment ;Chongqing University;Chongqing 400045;China;2.Department of Water Supply and Drainage of Zhenjiang;Zhenjiang 212002;China |
| |
| Abstract: | Through the field test of integrated infiltration,natural drying and digestion reactor,the treatment efficiency of excess sludge in Zhenjiang Zhengrunzhou WWTP by film-covered constructed filter drying beds was investigated.The filter layers were made of 10 cm gravel with 4 to 8 mm diameter,20 cm gravel with 10 to 20 mm diameter and 20 cm gravel with 50 to 80 mm diameter.The results show that the drying beds retain solids of 98.5% and bacteria of 99.9%.The average yield of sludge is 0.036 m3 dry sludge/m3 r... |
| |
| Keywords: | municipal sludge drying beds natural drying and digestion water content efficiency assessment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
