| Patent Number |
Title Of Patent |
Date Issued |
| 5480550 |
Biotreatment process for caustics containing inorganic sulfides |
January 2, 1996 |
| A biological process is described for caustic waste streams containing inorganic sulfides to effect neutralization of the caustic and, oxidation of sulfides to sulfate. The process is based on the contact of these caustic streams with mixed, fiocculated cultures of a sulfide-oxidizing |
| 5269929 |
Microbial process for the reduction of sulfur dioxide |
December 14, 1993 |
| A biological process is described involving the conversion of SO.sub.2 to H.sub.2 S using sulfate reducing bacteria in co-culture with facultatively anaerobic heterotrophs under anaerobic conditions in a maintenance medium which includes a substrate fermentable by the facultatively anaer |
| 5196121 |
Decomposition of halogenated aliphatic hydrocarbons in a bioreactor |
March 23, 1993 |
| Methanotropics are grown in a bioreactor containing a solid support. They decompose halogenated aliphatic hydrocarbons found in ground water. The growth of the bacteria and the methane concentrations in the biomass reactor are controlled to significantly enhance the degradation of the |
| 5077208 |
Microbial removal of no.sub.x from gases |
December 31, 1991 |
| Disclosed is a process by which a gas containing nitric oxide is contacted with an anaerobic microbial culture of denitrifying bacteria to effect the chemical reduction of the nitric oxide to elemental nitrogen. The process is particularly suited to the removal of nitric oxide from flue |
| 5032291 |
Catalytic reduction of nitro- and nitroso- substituted compounds |
July 16, 1991 |
| A process is disclosed for treating water or solids contaminated with a nitro- or nitroso- substituted compound comprising reducing a nitro- or nitroso- substituted compound in the presence of an effective catalytic amount of at least one of a corrin- or porphyrin- metal complex. The |
| 5004551 |
Catalytic oxidation of hazardous wastes |
April 2, 1991 |
| A process for treating water or solids contaminated with at least one chlorinated phenol which comprises oxidizing the at least one chlorinated phenol in the presence of an effective catalytic amount of a corrin- or porphyrin-metal complex. A preferred catalyst is a complex of Fe.sup.3+ |
