초록 ▼

Dissolved selenium is removed from contaminated water by treating the water in a reactor containing selected endemic and other selenium reducing organisms. Microbes may be isolated from the specific water or imported from other selenium contaminated water, The microbes are then screened for ability

Dissolved selenium is removed from contaminated water by treating the water in a reactor containing selected endemic and other selenium reducing organisms. Microbes may be isolated from the specific water or imported from other selenium contaminated water, The microbes are then screened for ability to reduce selenium under the site specific environmental conditions. The selected microbes are optimized for selenium reduction, then established in a high density biofilm within a reactor. The selenium contaminated water is passed through the reactor with optimized nutrient mix added as needed. The elemental selenium is precipitated and removed from the water.

대표청구항 ▼

[ What is claimed and desired to be secured by United States Letters Patent is:] [1.] A site specific method for removing oxidized selenium from contaminated water comprising:isolating endemic microbes from the selenium contaminated water;screening the endemic microbes for selenium reduction and int

[ What is claimed and desired to be secured by United States Letters Patent is:] [1.] A site specific method for removing oxidized selenium from contaminated water comprising:isolating endemic microbes from the selenium contaminated water;screening the endemic microbes for selenium reduction and interference with selenium reduction;selecting cultures of selenium reducing organisms;optimizing the cultures for selenium reduction;establishing a high density biofilm of the selenium reducing organisms within a reactor;stabilizing the biofilm within the reactor;providing nutrients to the organisms;passing the selenium contaminated water through the reactor;retaining the water in the reactor for a retention period;precipitating reduced selenium from the water; andremoving the reduced selenium from the water.