Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1974-02-19
1976-05-11
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 49, 210 52, 71 64SC, B01D 2101
Patent
active
039561194
ABSTRACT:
The dilute clay-containing slimes waste, formed in the hydraulic mining of phosphate mineral, is flocculated by mixing with an aqueous extract of fertile topsoil or with fertile topsoil which is the uppermost two feet or more of overburden that contains at least 200 parts per million of organic matter extractable by water. Water is recovered from the flocculated mixture. The dewatered floc is preferably disposed at a land reclamation site and covered with overburden to restore the original stable soil profile, i.e. an upper layer of soil with good drainage and a lower layer having poor drainage.
REFERENCES:
patent: 3680698 (1972-08-01), Liu et al.
patent: 3707523 (1972-12-01), Ledden et al.
patent: 3761239 (1973-09-01), Cook et al.
patent: 3763041 (1973-10-01), Cook et al.
Castel Bendit
Gilman Michael G.
Hart Charles N.
Huggett Charles A.
Malone Charles A.
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