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A process for decreasing the content of nitrate in ground water, artificial ground water, that is infiltrated aguasuperficial, or surface water
A process for decreasing the content of nitrate in ground water, artificial ground water, that is infiltrated aguasuperficial, or surface water
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机译:降低地下水,人工地下水(渗透到浅表层的地下水)或地表水中硝酸盐含量的方法
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摘要
The invention relates to a process for decreasing the content of nitrate in ground water, artificial ground water, that is infiltrated surface water, or surface water flowing through an aquifer or through a basin or a filter containing naturally occurring filter material. Water containing denitrification organisms and/or substrate therefore is introduced intermittently through a number of injection wells or injection pipes arranged around one or more extraction wells or extraction pipes for purified water. During each introduction of water containing denitrification organisms and/or substrate therefore said water is fed to only some of said injection wells or pipes and simultaneously water is drawn from nearby, adjacent or intervening injection wells or pipes or the purpose of creating a denitrification zone at a distance sufficiently far from the extraction well or extraction pipe.
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