| 用于低浓度污水处理的主要工艺 |
| 添加时间：2017/6/29 17:09:09 浏览次数： |
| 一般来说，城市低浓度污水的处理多采用生物膜法、活性污泥法、厌氧处理工艺等，在环境允许的地方还可以考虑人工湿地处理方法。目前，活性污泥法等好氧工艺技术已经研究发展得比较成熟，并应用到了许多实际工程中，取得了比较好的成果[2]-[3]。然而随着我国城镇化进程的加快，城市污水排放量正逐年增长，而好氧工艺由于使用了充氧设备，其能耗大，维护管理及运行的费用较高，已经对财政造成了很大的困扰。相对于好氧工艺，厌氧生物处理法能耗少，运行费用低，且营养盐需要少，这对C/N小的生活污水来说尤为重要。因此在继续挖掘好氧工艺潜力的同时，越来越多的研究者开始进行低浓度污水的厌氧处理研究，并已取得了不错的成绩。 In general, the treatment of low-concentration wastewater in cities is used in biofilm, activated sludge process and anaerobic treatment process, and artificial wetland treatment can be considered in the places where the environment permits. At present, aerobic process technology such as activated sludge process has been developed in a mature way and has been applied to many practical projects, which has achieved better results. However, with the speeding up of urbanization in our country, urban sewage emissions is increased year by year, and aerobic process with the use of oxygen filling equipment, its large energy consumption, maintenance and management and operation cost is higher, has caused a lot of trouble to finance. Compared with the aerobic process, the anaerobic biological treatment method USES less energy, the running cost is low, and the nutrient salt needs less, which is especially important for the small life wastewater of C/N. Therefore, as we continue to explore the potential of aerobic technology, more and more researchers have begun to study the anaerobic treatment of low-concentration wastewater and have achieved good results. |
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