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文章摘要
星海湖水环境容量研究
Water Environmental Capacity Assessment of Xinghai Lake
  
DOI:
中文关键词: 水环境容量  评估  星海湖
英文关键词: Water environmental capacity  Assessment  Xinghai Lake
基金项目:宁夏高等学校一流学科建设(水利工程)基金资助项目(NXYLXK2017A03)
作者单位
雷兴碧 宁夏大学土木与水利工程学院 
吴岳玲 宁夏大学土木与水利工程学院 
邱小琮 宁夏大学生命科学学院 
李世龙 宁夏大学土木与水利工程学院 
郭琦 宁夏大学土木与水利工程学院 
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中文摘要:
      基于2015—2017年星海湖高锰酸盐指数(IMn)、化学需氧量(COD)、五日生化需氧量(BOD5)、氨氮(NH3〖FK(W。*9〗〖CD*2〗〖FK)〗N)、总氮(TN)、总磷(TP)监测数据,以水质状态不再恶化、达到Ⅳ类水质、达到Ⅲ类水质、达到Ⅱ类水质为目标,采用完全混合模型评估星海湖水环境容量。结果表明:星海湖IMn水环境容量保持稳定,4种控制目标下3年水环境容量均值分别为88290 t/a、2 36676 t/a、-19529 t/a、-1 47631 t/a ;COD环境容量逐年减少;BOD5环境容量存在一定波动, 2016年环境容量明显增加;NH3〖FK(W。*9〗〖CD*2〗〖FK)〗N负荷接近Ⅱ类水质目标下环境容量;TP、TN的环境容量稀缺,急须对入湖TP、TN作削减。
英文摘要:
      The water environmental capacity of Xinghai Lake was assessed by full mixed model based on the monitoring data of permanganate Index(IMn), chemical oxygen demand (COD), five day biochemical oxygen demand (BOD5), ammonia nitrogen (NH3〖FK(W。*9〗〖CD*2〗〖FK)〗N), total nitrogen (TN), total phosphorus (TP) from 2015 to 2017, for preventing water quality from deteriorating, and reaching water quality standard Ⅳ, Ⅲ or Ⅱgrade. The results showed that the water environmental capacity for IMn was stable, the mean environment capacities under 4 control targets in the three years were 882.90 t/a, 2 366.76 t/a, -195.29 t/a and -1 476.31 t/a, respectively. The environmental capacity for COD decreased year by year. The environment capacity for BOD5 fluctuated, and increased significantly in 2016. The load of NH3〖FK(W。*9〗〖CD*2〗〖FK)〗N in water was close to the environmental capacity under water quality standardⅡgrade target. The environmental capacity for TP and TN were insufficient, revealing the urgence of TP, TN reduction.
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