唐山市赵各庄垃圾场污染研究

Study on Pollution in Zhaogezhuang Dump in Tangshan

在分析唐山市赵各庄垃圾场地质环境条件及其现状的基础上,研究了垃圾场周围土壤、土壤水和地下水的污染特征。结果表明:点状污染源的污染特征不仅受垃圾场地的地层岩性、地层结构、地下水径流条件和污染时间的影响,还受各污染组分的降解、吸附机理和含量等因素的影响。不论是在土壤和土壤水中,还是在地下水中,大部分污染组分的浓度都呈现出随距垃圾场距离的增加而逐渐减少的趋势,污染范围<20 m;个别污染成分随着距离的增大其浓度由小变大再变小;粘性土的阻滞作用明显大于砂性土。本研究结果这为点状污染源的防治提供了重要的依据,对防止地下水污染,保护地下水水源具有重要意义。

Based on the analysis of the geological environment condition and the current situation of Zhaogezhuang Dump in Tangshan,the pollution features of soil,soil water and groundwater around the dump were studied.The results showed that the pollution features of point pollution sources were influenced not only by the formation lithology,stratum structure,groundwater runoff and pollution time,but also by the degradation and adsorption mechanism and contents of various pollution components.The concentrations of most pollution components in soil,soil water and groundwater decreased gradually with the increase of the distance from the dump.The pollution range was less than 20 meters.With the increase of the distance,the concentration of some individual increased and then decreased.The blocking action of cohesive soil was obviously more than that of sandy soil.This research provided an important basis for the control of point pollution sources,which was of great significance in the prevention of groundwater pollution and protection of groundwater sources.