【摘要】 本文结合青藏铁路中小站区生活污水的特点,提出在自然条件恶劣的青藏高原采用生态大棚污水处理系统,利用青藏高原丰富的太阳辐射热作为热源,建立适宜于常规污水生物处理的半封闭人工小环境,为生活污水的处理提供必须的动态热平衡和O2-CO2平衡。通过前期实验室对2种生物处理工艺进行必选,确定采用4级生物转盘-土地处理相结合的工艺进行青藏铁路中小站区生活污水处理的现场实验。现场实验表明,污水经过该系统处理后,水质达到国家一级排放标准。该系统解决了高原污水处理和蔬菜种植两大难题。更多还原

【Abstract】 Considering the characteristics of the domestic sewage at the medium-small Qinghai-Tibet railway stations,the ecological greenhouse is adopted,which forms a small artificial semi-closed environment at the bad natural condition of Qinghai-Tibet plateau so as to provide dynamic heat balance and the cyclic balance of O2-CO2 for sewage biological treatment.By comparing two different biological treatment processes in the lab,we decide to adopt the combination process of four-stage rotating biological contactor plus land treatment for the field experiment of sewage treatment.The results show that the quality of the treated sewage reaches Class I of the national discharge standard.This system solves two problems concerning sewage treatment and vegetable planting.更多还原