【摘要】 贴不贴泡是大庆某石油化工总厂生产废水排放场地,其作用相当于一个水面较大的氧化塘.在纳污泡周边分别采集土壤及地下水样品,以研究其对周边土壤及地下水的污染状况.结果显示:纳污泡附近地下水及表层土壤受到不同程度石油烃污染,但除第1个采样点外,其余各采样点污染程度随距离变化不明显;土壤纵向以40~60 cm厚度层污染最为严重.说明大庆地区草甸黑土对石油烃滞留能力很强,使石油烃在其中的迁移速度很低,特别是水平迁移速度更小,才使污染近30年的场地地下水受到的石油烃污染不是十分严重.表层土壤的污染主要是由于雨季纳污泡内污水溢出造成的.更多还原

【Abstract】 Tiebutie pool,which takes up wastewater discharge from a petrochemical plant in Daqing,plays the role of a wide oxidation pond.In order to investigate the soil and groundwater pollution around the pool,groundwater and soil samples were collected from around the pool.The results show that the groundwater and the surface soils near the pool were slightly polluted by petroleum hydrocarbons(PHCs);the polluted level of all soil sampling sites except the first one did not change much;and the soil samples of 40～60 cm in depth were polluted most heavily.This means that the meadow black soils in Daqing area can adsorb PHCs easily and retard the transportation of them within soil,which make the groundwater not polluted much after nearly 30 years.The pollution of the soils may mainly be caused by the overflow of wastewater from the pool.更多还原