Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Reexamination Certificate
2006-11-28
2006-11-28
Vo, Hai (Department: 1771)
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
C210S506000, C210S640000, C210S510100, C096S006000, C096S011000, C095S046000, C428S316600, C428S319300, C428S319700, C428S182000
Reexamination Certificate
active
07140495
ABSTRACT:
Described is an apparatus for the removal of organic substances and/or nitrogen sources from an aqueous medium by exposing the aqueous medium to the action of microorganisms supported on a gas permeable, water impermeable layer, or on and/or in a three dimensional microbial support layer, that is proximate a gas delivery layer through which gas, preferably, oxygen-containing gas, is supplied to the gas permeable layer such that it diffuses through the gas permeable layer and is supplied to the microorganisms.
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David Moses M.
Hall, Jr. Jerald W.
Hester Jonathan F.
Holm David R.
Kirk Seth M.
3M Innovative Properties Company
Little Douglas B.
Vo Hai
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