Study On The Process Of Iron And Manganese Removal From Groundwater And An Application Example

Groundwater resources in water resources in China occupies an important position inthe water supply is increasingly important, especially in many regions and cities innorthern China in arid and semi arid regions, groundwater and even become the onlysource of water. However, in many regions of our country, especially iron and manganesecontent in groundwater in certain areas of the North and Northeast the standard, the impactof industrial domestic water.This is the thought that the Meihekou hospital water supply, for example, from theperspective of practical engineering applications, adopt a mature technology, widely usedcontact oxidation removal of groundwater high levels of iron, manganese, made on thebasis of the traditional technologies to improve the design, suitable for small units, smalltowns, rural water supply fast, efficient, stable water purification process equipment. Thisprocess compared with the traditional process has the following advantages:First, dosing drugs so you can add medicines quicker and more convenient andaccurate, and precise control and savings in manpower and material resources;Second, the core device of the water purifier to filter with dual tank, filter tank, filterselection and loading process, making water purifier after the water quality to higher andmore stable;Third,for the filter of the filter tank filled backwash process, backwash waterconsumption and re-achieve the time required for water quality and stability.Overall equipment of the process water purification process has the followingadvantages: First of all devices simple and easy to operate, low cost; equipment requiredfilter is easily accessible, low cost; again the performance of the filter should be stable;lower overall operating costs of the equipment and easy to automate, the process is runningstable, high iron and manganese content in remote and economically underdevelopedregions, and the other does not have a large water supply equipment area has a wide rangeof applications has far-reaching significance. The process in the Meihekou hospitals havestabilized one year of operation, the effluent quality composite drinking water health standards (GB5749-85), and low operating costs:0.254yuan/ton (excluding equipmentmaintenance and depreciation and labor costs).