摘要
为评价潮白河补水后淤泥对水体的影响,开展了淤泥污染物分析评价,通过室内动态模拟法模拟补水后淤泥的释放通量,预测补水后淤泥对上覆水的影响和预测可能存在的问题。结果表明,重金属内梅罗污染指数显示潮白河淤泥处于重金属清洁状态,而氮磷内梅罗污染指数显示,除潮6—8点位为轻和中污染级外,其他河段处于氮磷重污染级。动态释放模拟法显示,除潮8点位污染释放量较小外,其他点位在补水后均存在污染物大量释放的情况,且存在水黄的风险,主要为类腐殖质类,建议重点关注补水过程中的水质和颜色变化情况,提前采取措施预防风险发生。
In order to evaluate the impact of siltlin the water replenishment of Chaobai River refilled,analysis and evaluation of silt pollutants were carried out.Nemeiro pollution index method was selected to evaluate silt pollution,while the release flux of silt after replenishment was simulated through the indoor simulation method.The possible problems after water replenishment were predicted.The results showed that the Nemero pollution index of heavy metals in the silt of Chaobai River was in a clean state,while nitrogen and phosphorus were in a state of heavy pollution except for the 6-8 points of the tide.The simulation results showed that except for the small amount of pollution released at the 8th point of the tide,a large amount of pollutants were released after water replenishment at other points,and there was a risk of water yellow,It was recommended to focus on the water quality and color changes during the replenishment process and take measures in advance to prevent risks.
作者
杨兰琴
张武来
郝连柱
孙凯
王鹏
YANG Lanqin;ZHANG Wulai;HAO Lianzhu;SUN Kai;WANG Peng(Beijing Water Science and Technology Institute,Beijing 100048,China;Beijing Chaobai River Management Office,Beijing 101300,China)
出处
《北京水务》
2021年第6期47-51,共5页
Beijing Water
关键词
潮白河
补水
淤泥评价
污染释放
Chaobai River
water replenishment
silt evaluation
pollutant release.
