阿科蔓介质生物接触氧化法预处理微污染原水  

Pretreatment of micro-polluted raw water by biological contact oxidation with Aqua Mats medium

作　　者：李驰昊 施永生[1] 赵璇[1] 朱友利[2] 关清卿[3] 陈鑫[1] 

机构地区：[1]昆明理工大学建筑工程学院,昆明650500 [2]重庆大学城市建设与环境工程学院,重庆400045 [3]昆明理工大学环境科学与工程学院,昆明650500

出　　处：《环境工程学报》2015年第5期2317-2323,共7页Chinese Journal of Environmental Engineering

摘　　要：随着库区经济的发展,大量点源或面源污染物未经有效处理便直接排入水体致使许多可作为生活饮用水的水源变成了'微污染'水源,鉴于常规的预处理工艺不能很好地适应现有'微污染'水源水质的变化,采用挂膜成功的阿科蔓介质生物接触氧化法对微污染水源水进行预处理实验研究,并与挂膜成功的组合介质生物接触氧化法进行对比,结果表明,阿科蔓介质挂膜速度较快,效果较好,且对水源水质的变化具有较好的适应性,是微污染水原水质改善较为理想的人工介质;对于相同的微污染水源,阿科蔓介质的处理效果明显优于组合介质且处理效果良好,其对'微污染'水源水中TN、氨氮、COD和总磷的平均去除率分别为67.4%、87.2%、54.1%和40.1%,其中较适宜的阿科蔓介质生物接触氧化预处理进水溶解氧浓度为4.0~6.0 mg/L。阿科蔓介质生物接触氧化不失为一种开展饮用水源地生态防护与饮用水质改善的技术。With the development of economy in Three Gorges Reservoir area,a large number of point source or non-point source pollutants are directly discharged into water body without effective treatment. This ineffective treatment causes the water source used as drinking water to become the micro-polluted raw water. Since the conventional pretreatment process could not well adapt to the water quality changes of micro-polluted raw water source,an experimental research of pretreatment of micro-polluted raw water was carried out by using the AquaMats medium that had formed membrane successfully,and comparing with biological contact oxidation with assembled medium. The results show that the Aqua Mats medium,which has formed membrane successfully,could hang the membrane quickly,and well adapt to the micro-polluted raw water source. Therefore,this Aqua Mats medium is the optimal artificial medium to improve the water quality of micro-polluted raw water. In addition,for the same micro-polluted raw water source,the results show that compared with the assembled medium,the Aqua Mats medium has obviously better treatment effect. Using the Aqua Mats medium,the average removal rates of TN,NH+4-N,COD and TP in micro-polluted raw water pretreatment are 67. 4%,87. 2%,54. 1% and 40. 1%,respectively. The suitable dissolved oxygen concentration in micro-polluted raw water source for biological contact oxidation pretreatment with the Aqua Mats medium is 4. 0 ~ 6. 0 mg / L. Therefore,the contact oxidation method with the Aqua Mats medium is a very good technology for ecological protection and water quality improvement of the drinking water source.

关 键 词：阿科蔓 微污染原水 生物接触氧化 人工介质 

分 类 号：X52[环境科学与工程—环境工程]