Petroleum Pollution of Groundwater in Zibo and Its Prevention Measures

1　 IntroductionThe research area is situated in Zibo district ofZibo city,Shandong province,including the watersources of Dawu,Xixia and Hougao,with a capaci-ty of water supply of about0 .48hm3 /d,and is ahuge groundwater supply source. Tectonically,itison the east limb of Zibo syncline,with the stratadipping towards the northwestand a dip angle of1 0°.The aquifers are thick limestone,leopard lime-stone and dolomitic limestone of the middle Ordovi-cian,in which karst and fissures are well…

Petroleum Pollution of Groundwater in Zibo and Its Prevention Measures

The source of ground water supply in Dawu is an extremely huge one in Shandong province. Now it is faced with serious pollution of petroleum in Hougao area. Aiming at this problem, the petroleum pollution in aeration zone and in groundwater was analyzed. The result shows that the contaminant of groundwater comes from the leaching of petroleum in the soil horizon of aeration zone through precipitation, and the quick flow of groundwater makes the convection dominate themigration of contaminant. So movement of groundwater controls the distribution of petroleum contaminant, which is consistent with the direction of ground flow. Building a groundwater closure zone in Hougao is an effective method to stop the contaminated groundwater flowing toward the water supply source of Dawu. The petroleum contaminant can be effectively reduced through using the aeration, biological and oxidation technologies.