Claims
- 1. An adsorbent composition of a first granulated active carbon and a second granulated active carbon for water purification comprising as a primary component a comixture comprising said first granulated active carbon, diatomite and aluminum silicate and as a second component said second granulated active carbon which is blended into said primary component whereby the active carbon of said second component has a higher adsorbtivity for chlorine than the active carbon of said primary component and wherein said granulated active carbon of said primary component comprises up to about 4/5 of the granulated carbon of said adsorbent composition and the total granulated carbon content comprises from about 25 percent by weight to about 85 percent by weight of said adsorbent composition.
- 2. An adsorbent composition as in claim 1 which contains from about 1 percent by weight to about 4 percent by weight tri-sodium phosphate.
- 3. An adsorbent composition as in claim 1 which contains from about 0 percent by weight to about 7 percent by weight of a catalytic chlorine removal agent comprising at least one metal in particulate form.
- 4. An adsorbent composition as in claim 1 which contains from about 5 percent by weight to about 15 percent by weight of diatomite and from about about 10 percent by weight to 30 percent by weight of aluminum silicate.
- 5. An adsorbent composition as in claim 4 which contains from about 1 percent by weight to about 4 percent by weight of tri-sodium phosphate.
- 6. An adsorbent composition as in claim 1 wherein said granulated active carbon has pores which range in the size from about 15 angstroms to about 30,000 angstroms.
- 7. An adsorbent composition as in claim 1 wherein said primary component contains bone charcoal.
- 8. An adsorbent composition as in claim 7 wherein said primary component contains activated alumina.
- 9. An adsorbent composition as in claim 8 wherein said bone charcoal comprises about 5 to 25 percent by weight of the primary component and said activated alumina is present in an amount of about 2 to 25 percent by weight of the bone charcoal.
- 10. An adsorbent composition as in claim 1 wherein there is a separate layer of bone charcoal.
- 11. An adsorbent composition as in claim 10 wherein there is a separate layer of activated alumina.
- 12. A method of making an adsorbent composition for purifying a contaminated water comprising forming a homogeneous admixture of aluminium silicate, diatomite and a major amount of a granulated active carbon that is to be added, mixing such components for a first period of time and then in a second step adding the remainder of the granulated active carbon and mixing said components for a second period of time, but a shorter period of time than the first period of time.
- 13. A method as in claim 12 wherein a tri-sodium phosphate is added along with the initial components.
- 14. A method as in claim 12 wherein a catalytic chlorine removal media comprising at least one metal in particulate form is added along with the initial components.
- 15. A method as in claim 12 wherein said initial components are mixed for about 25 to 45 minutes and the remainder of the granulated active carbon is mixed for about 3 to 10 minutes.
- 16. A method as in claim 12 wherein bone charcoal is added as a component of said homogeneous mixture.
- 17. A method as in claim 16 wherein activated alumina is added as a component of said homogeneous mixture.
- 18. A method as in claim 16 wherein the remainder of the granulated active carbon contains bone charcoal.
Parent Case Info
This application is a continuation in part of U.S. application Ser. No. 503,053 filed Apr. 2, 1990, now abandoned, which in turn is a continuation in part of U.S. application Ser. No. 274,402 filed Nov. 21, 1988, now abandoned.
US Referenced Citations (10)
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
503053 |
Apr 1990 |
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Parent |
274402 |
Nov 1988 |
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