Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-03-05
1977-01-25
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 51, 210 53, 210 54, 210DIG30, B03D 102
Patent
active
040050092
ABSTRACT:
A method of treating a waste water containing anionic surfactant and heavy metals, which comprises the steps of: adding a specific inorganic coagulant and a specific salt to said waste water so as to make the respective concentration of said inorganic coagulant and inorganic salt in the waste water be at prescribed levels, adjusting the pH value to be in the range of from 5 to 10 after adding said inorganic coagulant, further adding a cationic coagulant so as to make its concentration be at a prescribed level, and treating the thus processed waste water through the foam separating process.
REFERENCES:
patent: 629409 (1899-04-01), Wilson
patent: 2221018 (1940-11-01), Bachman et al.
patent: 2734821 (1956-02-01), Schaufelberger
patent: 3201304 (1965-08-01), Munjat
patent: 3285849 (1966-11-01), Watanabe et al.
patent: 3404088 (1968-10-01), Dujardin
patent: 3476553 (1969-11-01), Sebba et al.
patent: 3898159 (1975-08-01), Okabe et al.
patent: 3932274 (1976-01-01), Izumi et al.
Grieves R. B., JWPCF, 42, 1970, pp. R336-R344.
Ando Susumu
Kinoshita Mototaka
Sekiguchi Yoshimitu
Hart Charles N.
Hruskoci Peter A.
Lion Fat & Oil Co., Ltd.
LandOfFree
Method of treating waste water containing surfactant and heavy m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of treating waste water containing surfactant and heavy m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of treating waste water containing surfactant and heavy m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1477709