Stabilization of biowastes

• US 5,736,032 A
• Filed: 10/11/1996
• Issued: 04/07/1998
• Est. Priority Date: 05/19/1992
• Status: Expired due to Term

• Current Assignee: MECS, Inc. (DuPont de Nemours, Inc.)
• Original Assignee: James P. Cox, Robert W. Duffy Cox
• Inventors: Cox, James P., Cox, Robert W. Duffy
• Primary Examiner(s): McCarthy, Neil
• Application Number:
  US08/729,597
• Time in Patent Office: 543 Days
• Field of Search: 424/76.2, 424/76.21, 424/76.3, 424/76.4, 424/76.5, 424/76.6, 424/76.7, 424/76.8, 424/682, 424/688, 424/690, 424/646, 424/648, 514/693, 514/699, 514/705, 514/703, 252/175, 252/180, 252/181, 210/749, 210/764
• US Class Current: 424/76.5
• CPC Class Codes: A61L 9/01 Deodorant compositions compositions released by contact with a liquid A61L9/05
• CPC Class Codes: B09B 3/00 Destroying solid waste or transforming solid waste into something useful or harmless

Abstract

Biowaste treatment agents for treating biowastes in a manner which: (a) keeps noxious and toxic substances from being released from the biowaste, and (b) neutralizes such substances released during the course of stabilizing the biowaste. The treatment agents include a surfactant in an amount of from 1.0 to 99 percent of the treatment agent, a metal component in an amount from 0.5 to 85 percent of the treatment agent, the metal component including a source of zinc, or copper, or a combination of copper with aluminum or iron, and an aldehyde in an amount from 0.1 to 80 percent of the treatment agent.

Claims

1. A biowaste treatment agent comprising a surfactant component, a metal component, and an aldehyde;

said surfactant component comprising about 1.0% to about 99.0% by weight of the treatment agent;

said metal component selected from the group consisting of a source of silver and a source of iron, and said metal component comprising from about 0.5% to about 85.0% by weight of the treatment agent; and

said aldehyde comprising about 0.1% to about 80.0% by weight of the treatment agent.

2. A biowaste treatment agent as defined in claim 1 in which the metal component is selected from the group consisting of silver nitrite, silver chloride, ferrous sulfate and ferrous chloride.

3. A biowaste treatment agent as defined in claim 1 in which the aldehyde is selected from the group consisting of benzaldehyde, acetaldehyde, glutaraldehyde, citral, and decanal.

4. A biowaste treatment agent as defined in claim 3 in which the aldehyde is benzaldehyde.

5. A biowaste treatment agent as defined in claim 1 in which the surfactant component comprises a non-ionic surfactant.

6. A biowaste treatment agent as defined in claim 1 in which the surfactant component comprises an amphoteric surfactant.

7. A biowaste treatment agent as defined in claim 1 in which the surfactant comprises a mixture of ionic and amphoteric surfactants.

8. A biowaste treatment agent comprising a surfactant component, a metal component, and an aldehyde in an aqueous carrier;

said surfactant component being a mixture of non-ionic and amphoteric surfactants and comprising from about 1.0% to about 99.0% by weight of the treatment agent;

said metal component selected from the group consisting of a source of silver and a source of iron, and said metal component comprising from about 0.5% to about 85.0% by weight of the treatment agent; and

said aldehyde being benzaldehyde and comprising about 0.1% to about 80.0% by weight of the treatment agent.

9. A biowaste treatment agent as defined in claim 8 in which the metal component is selected from the group consisting of silver nitrite, silver chloride, ferrous sulfate and ferrous chloride.

10. A biowaste treatment agent as defined in claim 8 which comprises:

space="preserve" listing-type="tabular">______________________________________ Constituent Percent ______________________________________ Amphoteric Surfactant 15 Non-ionic Surfactant 15 Silver or Iron Compound 5 Benzaldehyde 4 ______________________________________

11. A biowaste treatment agent comprising a surfactant component;

a metal component;

an aldehyde; and

, optionally, a proton donor;

said surfactant component comprising about 1.0% to about 99.0% by weight of the treatment agent;

said metal component selected from the group consisting of a source of silver and a source of iron, and said metal component comprising from about 0.5% to about 85.0% by weight of the treatment agent; and

said aldehyde comprising about 0.1% to about 80.0% by weight of the treatment agent.

12. A biowaste treatment agent as defined in claim 11 in which the metal component is selected from the group consisting of silver nitrite, silver chloride, ferrous sulfate and ferrous chloride.

13. A biowaste treatment agent as defined in claim 11 which comprises:

space="preserve" listing-type="tabular">______________________________________ Constituent Percent ______________________________________ Amphoteric Surfactant 15 Non-ionic Surfactant 15 Silver or Iron Compound 5 Benzaldehyde 4 ______________________________________

14. A biowaste treatment agent as defined in claim 11 in which the aldehyde is selected from the group consisting of benzaldehyde, acetaldehyde, glutaraldehyde, citral, and decanal.

15. A biowaste treatment agent as defined in claim 14 in which the aldehyde is benzaldehyde.

16. A biowaste treatment agent as defined in claim 11 in which the surfactant component comprises a non-ionic surfactant.

17. A biowaste treatment agent as defined in claim 11 in which the surfactant component comprises an amphoteric surfactant.