摘要
重点研究了再生水水质在不同储存条件过程中的水质变化规律。从再生水随不同储存条件变化规律的试验中得出:不同温度下,COD的指标都是呈下降的趋势,常温储存下再生水的COD最高,30℃COD含量最低。总磷在30℃下浓度最高,常温下浓度最低。氨氮在常温下浓度最低,30℃和5℃下浓度相近。细菌总数在30℃时最多,5℃时最少。总氮没有明显的变化规律。敞开储存下COD含量下降多,细菌总数要比封闭环境下的细菌总数大,余氯和总氯都呈下降速度较快。
This paper mainly focuses on the reclaimed water quality change during storage in different environment. The test results show： from recycled water with different storage conditions test, COD indicators show a downward trend at each temperature; COD of reclaimed water with room temperature storage is the highest while COD content of 30 ℃ is the minimum; the total phosphorus concentration is the highest at 30 ℃, while the lowest at room temperature; ammonia nitrogen concentration is the lowest at room temperature, whilst that of 30 ℃ and 5 ℃ is similar; the total number of bacteria is the maximum at 30 ℃ but is the least at 5 ℃ ; there is no obvious trend on TN; the COD content of open storage decrease more while the total number of bacteria of open storage is higher than that of closed environment, the residual chlorine and total chlorine decrease rapidly.
出处
《节水灌溉》
北大核心
2014年第8期38-41,44,共5页
Water Saving Irrigation
基金
国家重大水专项(2009ZX07317-008-003)
湖北省自然科学基金项目(2013CFB289)
关键词
再生水
水质变化规律
储存
reclaimed water
law of water quality variety
storage
