| With the rapid development of the national economy,various socio-economic projects greatly increased demand for electricity.And China has a very rich coal resources,leading to thermal power plants still become our power installed capacity of choice.However,in the environmental conditions can not meet the requirements of the case,the thermal power plant will have a certain impact on groundwater.Based on the "Oroqen large poplar 2 × 200MW cogeneration project",this paper evaluates the influence of thermal power plant construction on groundwater with the site of thermal power plant and its surrounding area as the research area,which is provided for the construction of thermal power plant and the protection of groundwater resources.Full scientific basis.Based on the analysis of the physical geography,hydrology and hydrogeology of the study area,the groundwater environment of the study area was evaluated and the groundwater quality status was evaluated.The main influencing factors of the groundwater environment were analyzed by analyzing the thermal power plant construction and operation.Reasonable construction to provide reference.The main conclusions of this paper include the following:1.Project construction stage:In the strict implementation of the groundwater environment protection program under the premise of doing a good job of domestic sewage and waste centralized treatment,the project will not affect the groundwater environment.2.Project operation period:under normal conditions,the factory site after a variety of waste water treatment reuse,a variety of processes closed operation,plant seepage control measures are reliable,will not pollute the groundwater environment;in the abnormal situation,may The occurrence of domestic sewage septic tank leak and accident pool leakage.Through the establishment of groundwater flow and water quality model,the ammonia nitrogen characteristic pollutants leaked by the domestic sewage septic tank were predicted at a concentration of 30 mg/L.At 1000 days,the maximum migration distance was 274.09 m,and the concentration was lower than the standard limit.The CODcr characteristic contaminants were predicted at a concentration of 3000 mg/L with a maximum migration distance of 341.44 m and a concentration below the standard limit.Therefore,the project will not have an impact on the surrounding groundwater environmental objectives.Of course,in the active control,timely take groundwater monitoring,emergency response,groundwater pollution remediation and other conditions,the pollution can be limited to a small range. |
