Purification of waste stream from tanning process by adsorption

Details Purification of waste stream from tanning process by adsorption Purification of waste stream from tanning process by adsorption

1986-06-23

1988-01-05

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

C02F 128

Patent

active

047174838

ABSTRACT:
An improved process is disclosed for the simultaneous removal of ammonia, sulfides and organic impurities from an impure aqueous stream from a tanning process which comprises contacting the impure stream with an adsorbent comprising a mixture of alumina and a Y zeolite.

REFERENCES:
patent: 3420709 (1969-01-01), Barrett et al.
patent: 3625886 (1971-12-01), Mattia
patent: 3723308 (1973-03-01), Breck
patent: 4225639 (1980-09-01), Matyasi et al.
patent: 4290895 (1981-09-01), Iwamoto
patent: 4414111 (1983-11-01), Iwaisako et al.
Von Heinz Bernhardt et al., "Anwendung der Aktivtonerdefiltration zur Eliminierung von Phosphaten aus Kleinen Talsperrenzulaufen", Zeitschrift fur Wasser und Abwasser Forshung, vol. 14, 1981, pp. 180-187.
Russell L. Culp et al., Handbook of Advanced Wastewater Treatment, 2nd ed., New York: Van Nostrand Reinhold Co., 1978, pp. 323-348.
R. J. Starkey, Jr., et al., "An Investigation of Ion Removal from Water and Wastewater", EPA-660/3-74-022 (PB-240 158), National Environmental Protection Agency, Aug. 1973, pp. 28 and 37 (Table 8).

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