The Analysis and Remediation Technology of the Pollution of the Groundwater Environment in Longkou Plain, China

In order to study the groundwater environment in the Longkou plain, 48 groups of water samples are collected, consisting of 7 groups of surface water samples and 41 groups of groundwater samples. The quality of groundwater in the Longkou Plain is poor, with class V water quality accounting for more than 90%, and no class I, II water quality, sporadic distribution of Class III and IV water quality. The influencing factors of water quality are mainly inorganic indicators such as nitrate, total hardness, chloride, salinity and sulfate, the detection rate of heavy metals is low. Nitrate is the main pollution index in this area, and the increase of nitrate content is closely related to the construction of underground reservoir. Based on the characteristics of groundwater pollution in the Longkou Plain, the in-situ chemical remediation of groundwater pollution is proposed.