贵州平坝鸡大陇赤泥堆场岩溶渗漏污染评价

贵州平坝长空地区岩溶发育,地下水运移复杂。鸡大陇赤泥堆场建于峰丛洼地之上,由于堆场选址和防渗处理措施不当,产生渗漏,使强酸、强碱废水污染了岩溶水,直接影响了岩溶水资源的开发利用。通过调查该区的岩溶泉、潭等地下水天然露头水位,分析推断岩溶洼地地下水发育的两个径流带分别为向北和向南径流带(主、次径流带)。据此水文地质特征,对堆场进行渗漏污染预测评价,并提出防渗处理措施。

Evaluation for karst leakage pollution of Jidalong red mud stack field in Pingba of Guizhou

The karst in Changkong area of Guizhou province is well developed,and the movement of the karst groundwater is complicated.Jidalong red mud stack field was built on karst marsh land.Because of the unsuitable siting for the waste residue disposal site and the unsuitable leak-proof treatment,the seepage occurred,which resulted in the karst water polluted by the strong acid and the alkaline wastewater.The exploitation of the karst water resources was directly influenced.Through the investigation of the outcrop water level of the karst springs and pools,it was deduced that the karst groundwater developed the two runoff strips,one was to the south and another was to the north（primary and secondary runoff strips）.According to the hydrological characteristics,the evaluation of the leakage pollution for the field was made,and the leak-proof treatment was put forward.