The Study On The Migration Of Iron And Manganese In The Submerged Layer Of Shifosi Reservoir

The subsurface layer of the river bank is the lower edge of the riverbank belt,which is the area of surface water groundwater interaction.The surface water seeps into the groundwater through its permeable layer,and has good water purification ability.Stone Buddha temple reservoir is the only controlling engineering in liaohe river,is typical of flood detention type reservoir,the reservoir distribution in shenyang shenyang agricultural high-tech water source,water source and yellow home daily water supply of 100000 m after a/d,stone Buddha temple reservoir area is larger,the earth’s surface-water contact is stronger,in the process of water storage,because the stone Buddha temple reservoir of groundwater iron manganese content of background value is higher,greater influence on the processing of groundwater,so how to control to reduce the processing difficulty of groundwater,improve the efficiency of water treatment related departments have paid close attention to.The impoundment of the reservoir of shek buddhist temple changes the local groundwater environment,which changes the location,area and so on of the groundwater,and it has great influence on the local groundwater environment.,on the other hand,due to the two water in reservoir area are for water supply in the form of river water,its water process will affect the local groundwater environment is also now is urgent need to understand the problem.This topic for the study of reservoir impoundment process affect the zone undercurrent layer,the river water to the undercurrent layer fe mn content effect,lower riparian zone on the source,the undercurrent fe mn content,mainly to complete the work:Assessment of ground water quality and groundwater quality.The respectively through comprehensive index method and fuzzy comprehensive evaluation method,the stone Buddha temple reservoir surface water and groundwater quality evaluation,the evaluation result for the whole stone buddhist temple reservoir surface water quality is Ⅴ class water;Groundwater quality in the mutagenicity of Ⅳ～Ⅴ,altogether for Ⅲ～Ⅳ class.The results show that the main influencing factors in groundwater are iron and manganese,which shows that the iron and manganese exceeds the standard in groundwater.The substratum of the riverbank of the two stone buddhist temple reservoir is divided.Through collecting in-situ soil,stone Buddha temple reservoir area indoor experiment,determine the riparian zone undercurrent fe mn concentration,collect stone buddhist temple reservoir water level,the contents of iron and manganese,iron manganese content stone Buddha temple reservoir distribution,riparian zone,the undercurrent of stone Buddha temple reservoir layer division.It is determined that the subsurface of the riverbank of the riverbank of the shifosi reservoir is subsurface to underground 5m.and the space range is 1.2～1.6km from the surface water distance.The maximum concentration of iron is 5mg/L,and the maximum concentration of manganese is lmg/L.The spatial distribution of ferromanganese in the submerged layer of the three Banks.This paper analyzes the influence of reservoir on the substratum of riverbanks by means of the combination of sampling and data collection.In this paper,the method of in-situ acquisition and indoor experiment is used to determine the transformation rule of fe and mn in the submerged layer of riverbank.Results show that the stone Buddha temple reservoirs within 1 year after the rapid change of riparian zone,the undercurrent fe mn content,and form new riparian zone,the undercurrent layer,the closer distance reservoir distance the riparian zone,the undercurrent the faster the stable layer of iron manganese content.By in-situ collecting the internal surface of clay stone Buddha temple reservoir area,the depth within the scope of the 0～50 cm,the results show that vertical riparian zone,the undercunrrent layer of iron and manganese has certain adsorption to remove oxidation,which altogether to the iron and manganese removal ability in 11.4%,19.2%respectively,the mutagenicity of iron and manganese removal ability were 20.7%,13.7%respectively.The change of the concentration of iron and manganese in the riverbank of the Banks of the reservoir in the reservoir area of the reservoir is gradually decreasing in the subsurface layer,and the groundwater background value is higher,and it increases gradually under the subsurface layer.Simulation of the variation of iron and manganese in the submerged layer of the four Banks.First through internal surveys to collect stone buddhist temple reservoir area of hydrology,meteorology,such as geographical conditions,the surface-water coupling model is established,and by using the known data in reservoir model parameters calibration,using the visual modflow software modflow and MT3DMS module to water source current river water condition stone buddhist temple in the reservoir water level and total iron simulated prediction,the results show that the stone buddhist temple reservoir,the water supply conditions the fe mn undercurrent layer is affected.After the reservoir water supply increase,can obviously increase the groundwater reservoir surface water contact,iron,manganese content lower riparian zone,the undercurrent reservoir layer for stone buddhist temple reservoir protection and utilization of groundwater resources to provide security basis.The control of iron and manganese in the submerged layer of the riverbank.By investigating internal aquatic plants and the stone Buddha temple reservoir area land plants fe mn content,determine the internal surface of the plant of iron and manganese enrichment regularity,analyzed its effect on the degradation of riparian zone,the undercurrent layer fe mn.Results show that the stone Buddha temple reservoir,aquatic plant roots strongest enrichment capacity of iron and manganese,which is the measure of the average concentration of iron and manganese respectively 40 mg/kg,24.54 mg/kg,terrestrial plants fe mn biggest draw enrichment were 5.07 mg/kg,1.05 mg/kg,the iron and manganese enrichment regularity to reduce with the increase of distance from the reservoir,ecological protection and development for the stone Buddha temple reservoir area provide a reference basis.This experiment through indoor soil column experiment with a combination of data gathering,the typical pollutant in groundwater is used to determine the riparian zone,the undercurrent floor space,widened the scope of the zone,the undercurrent layer research train of thought,is the method of innovation of this subject.