摘要
北京某湖属于封闭景观水体,以市政再生水为补水水源.2007年3月～9月对该景观水体及其补水水源水质主要指标进行了连续监测,结果表明,作为补水水源的市政再生水,其化学需氧量较低,可以稀释湖水,但其氮、磷含量高,补入水体后,湖水的总磷、总氮浓度升高,高于Ⅴ类水体水质标准,超出水体的自净能力.采用综合营养状态指数法对湖水营养程度进行评价表明,湖水处于重度富营养状态.因此提出再生水必须经过处理才能注入湖水中,供管理部门参考.
Not connected with any other water,a lake in Beijing uses reclaimed water as its supplemented water source.The main indicators of the lake water and the supplement water were tested from March to September in 2007,and the results showed that the concentrations of total phosphorus（TP） and total nitrogen（TN） in the lake were higher than those in V-class water after the supplementing of reclaimed water,although the chemical oxygen demand（COD） of the reclaimed water is lower than that of the lake water.The comprehensive nutrition state index indicated that the lake was heavily eutrophic,so the reclaimed water must be treated before immited into the lake,which can be used by the management department as reference.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2010年第8期727-732,共6页
Journal of Tianjin University(Science and Technology)
基金
北京市教育委员会科技发展计划基金资助项目(KM200810016011)
国家水体污染控制与治理科技重大专项资助项目(2009ZX07317-005
2009ZX07318-004)
国家科技支撑计划课题资助项目(2006BAB17B01)
关键词
景观水体
再生水
补水
富营养
landscape water
reclaimed water
supplemented water
eutrophication
