Deliquescent salt addition to alum used to treat animal waste products
US6468518B2 · kind B2 · utility
9Cited by
9References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Animal enclosures such as poultry houses generate high amounts of ammonia that adversely affect weight gain and mortality or the animals, particularly among young chicks. The addition of a deliquescent salt, such as calcium chloride, to alum to treat animal waste products rapidly activates the alum to remove ammonia from the atmosphere. The ammonia sulfate by-product is useful as a nitrogen fertilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.