Simultaneous removal method of manganese and nitrate in underground water
A groundwater and nitrate technology, applied in chemical instruments and methods, contaminated groundwater/leachate treatment, water pollutants, etc., can solve problems such as excessive pollutants, and achieve strong adaptability, low operating costs, and treatment effects. Good results
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 This example provides a method for simultaneously removing manganese and nitrate from groundwater. The groundwater to be treated in Example 1 comes from the self-use groundwater of a farmer in Guodu Town, Xi'an City.
 Include the following steps:
 Step 1. Take 10L of groundwater to be treated and add it to the closed reactor. In the morning, middle and evening, nitrogen gas is introduced into the reactor 3 times, each time for 5 minutes. At the beginning of acclimatization, nutrient solution I was used as the acclimatization medium.
 During the domestication process, the concentration of nutrient solution I was gradually reduced until the concentration of nutrient solution was 0.1g / L NaHCO3, 0.02g / LNaNO, 0.02g / L KH 2 PO 4,, 0.02g / L MgSO 4 ·7H 2 O, 0.02g / L CaCl 2 , 0.4ml of trace element solution, acclimated by the above method for 30 days to complete sludge enrichment to obtain sedimentation sludge.
 The formula of nutrient solution...
 This embodiment provides a method for synchronously removing manganese and nitrate from groundwater. The groundwater to be treated in Embodiment 2 comes from a certain groundwater well in Qianyang County, Shaanxi Province, including the following steps:
 Step 1, get 5L groundwater to be treated and add in the airtight reactor, other is with embodiment 1;
 Step 2, with embodiment 1;
 Step 3: Take bulk sludge and add nutrient solution III to make enriched and domesticated bacterial solution, use ceramsite with a particle size of 5mm as the filter material, add 2L of enriched and domesticated bacterial solution and an equal proportion of nutrient solution per kilogram of ceramsite Ⅲ. The reactor was sealed, and the film was hung at 25°C for 9 days, and the nitrogen was used every 8 hours. 2 Carry out aeration and stirring for 30 minutes each time. The light yellow biofilm formed on the surface of the ceramsite indicates that the hanging film is o...
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