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US 12,358,819 B2Granted
Liquid bio-catalytic composition
AssigneeNeozyme International, Inc.
InventorsParker Dale, Parker David Dale
Life of this patent
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Abstract
The present invention provides a process for the treatment of sewage sludge with enzymes, which process comprises treating a sewage sludge resulting from the treatment of municipal or industrial waste water with a composition comprising a fermentation supernatant product from a Saccharomyces cerevisiae culture and a non-ionic surfactant, wherein said fermentation supernatant product is free of active enzymes, at conditions suitable for generating said active enzymes from said sewage sludge in situ.
Claims20
A liquid bio-catalytic composition comprising:
- a fermentation supernatant isolated from a yeast culture, the fermentation supernatant comprising bio-nutrients, minerals and amino acids and treated to destroy active enzymes, the fermented yeast supernatant produced from a yeast culture containing yeast belonging to the genus Saccharomyces, and
- about 1% to about 15% by weight one or more ethoxylated nonionic surfactants,
- wherein the liquid bio-catalytic composition lacks any active enzymes or bacteria, and
- wherein the liquid bio-catalytic composition has a pH of about 3.5 to about 4.0.
1 more element
Dependencies are inferred from the claim text.