洋河水库热成层对水质的影响  

Effect of Thermo Stratification on Water Quality in Yanghe Reservoir

作　　者：李凤彬 

机构地区：[1]河北省秦皇岛市引青管理局水质化验室

出　　处：《给水排水》1999年第9期19-21,共3页Water & Wastewater Engineering

摘　　要：　洋河水库在７ 月末到９ 月初之间存在明显热成层，造成表、底层水质差异，“水华”严重时，表层ｐ Ｈ 高达９１６ ，溶解氧达１２４８ｍｇ／ Ｌ，亚硝酸盐氮达０１３２ ｍｇ／ Ｌ，藻类细胞密度达６２３ 万个／ Ｌ，均显著高于底层水体。对水质分层的原因和部分水质指标的相互影响进行了初步分析，并探讨了相应的取水对策。hemo Stratification appears evidently in Yanghe Reservoir at the period from the late July to the early September and causes differences of water quality at the surface and the bottom of the water body.At the time of high water crown the surface water has high levels of pH=9.16,DO=12.48mg/L,NO\+-\-2-N=0.132mg/L and algae cell density of 6.32 million/L,much higher than that at bottom.In this paper the reasons which caused the water quality stratification and the correlative influence of some water quality indicators are discussed and the strategy of water intake in this season is proposed.

关 键 词：热成层 水质分层 水库 水温 

分 类 号：TV697.1[水利工程—水利水电工程]