Acid rain neutralizing block, method of making such blocks and m

Details Acid rain neutralizing block, method of making such blocks and m Acid rain neutralizing block, method of making such blocks and m

1989-12-26

1992-10-27

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of inorganic material

428220, 428332, 428913, 210170, 210724, 210749, 252175, 106782, 106787, 106791, 106800, B32B 1300

Patent

active

051588358

ABSTRACT:
Blocks, weighing about 35 lbs., formed of a homogeneous mixture of about 75% gypsum and 25% lime, are strategically placed in surface water that is being damaged by acid rain, where, by timed release of lime, the pH of the water is maintained at about 6.5 pH.

REFERENCES:
patent: 2546586 (1951-03-01), Cross, Jr.
patent: 3414462 (1968-12-01), Cafferata
patent: 3861930 (1975-01-01), Lin
patent: 4360386 (1982-11-01), Bounini
patent: 4445937 (1984-05-01), Bassier et al.
patent: 4451295 (1984-05-01), Sprouse
patent: 4822579 (1989-04-01), Wagner
patent: 4915920 (1990-04-01), Kobayashi

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