초록 ▼

A tall cylindrical silicone rubber gas permeable tube is adapted to fit in an injection well at least partly below the water table for the bioremediation of organic contaminants and to contain pressurized oxygen and/or other gases supportive of the anaerobic micro-organism activity. The gases slowly

A tall cylindrical silicone rubber gas permeable tube is adapted to fit in an injection well at least partly below the water table for the bioremediation of organic contaminants and to contain pressurized oxygen and/or other gases supportive of the anaerobic micro-organism activity. The gases slowly diffuse through the bladder at rates that permit their full utilization by dissolution in the underground water.

대표청구항 ▼

[ We claim:] [1.] Apparatus for introducing a bioremediation assisting gas into a well drilled in the earth into below-the-surface water contaminated with biodegradable chemicals, said well having a diameter to receive said apparatus, said apparatus comprising a straight wall polymeric container hav

[ We claim:] [1.] Apparatus for introducing a bioremediation assisting gas into a well drilled in the earth into below-the-surface water contaminated with biodegradable chemicals, said well having a diameter to receive said apparatus, said apparatus comprising a straight wall polymeric container having an internal diameter and, when disposed vertically in said well, a lower end and an upper end, said container having an internal diameter greater than the thickness of said wall, said container being of a composition permitting diffusion of a said gas through said wall and the internal volume of said container being sufficient to hold a volume of said gas under pressure that would require more than one day to diffuse through the wall, the top and bottom ends of said container being closed and the top end having a valve for admitting a gas into said tube.