Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-05-18
1978-11-14
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 10, C02C 300
Patent
active
041254660
ABSTRACT:
A treatment for improving the filtering characteristics of the sludge is attained by adding a magnesium compound with or without an iron salt and further adding a base to maintain the pH of the sludge at higher than 9.0.
REFERENCES:
patent: 2300693 (1942-11-01), Oswald
patent: 3173863 (1965-03-01), Oster et al.
patent: 3262877 (1966-07-01), Le Compte, Jr.
patent: 3377271 (1968-04-01), Cann
patent: 4017391 (1977-04-01), Black
Kawamura Hideo
Miyanohara Isao
Miyazaki Hiroshi
Castel Benoit
Hart Charles N.
Toyo Soda Manufacturing Co. Ltd.
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