CH553588A
(en )
1974-09-13
SYSTEM FOR BIOLOGICAL-MECHANICAL PURIFICATION OF WASTE WATER.
IT960998B
(en )
1973-11-30
INCINERATION PROCEDURE FOR THE ELIMINATION OF SOLID WASTE
NL7510787A
(en )
1976-03-16
METHOD FOR THE PURIFICATION OF INDUSTRIAL WASTE WATER.
CH493436A
(en )
1970-07-15
Wastewater purification process
NL152517B
(en )
1977-03-15
PROCEDURE FOR THE REMOVAL OF HARMFUL METALS FROM WASTE WATER.
IT967372B
(en )
1974-02-28
PROCEDURE AND DEVICE FOR THE PURIFICATION OF ORGANICALLY POLLUTED WASTE WATER
IT1035672B
(en )
1979-10-20
PRODUCED FOR THE PURIFICATION OF WASTE WATER FOR ZZO OF ACTIVE CARBON
IT979671B
(en )
1974-09-30
PROCEDURE FOR THE TREATMENT OF WASTE WATER
IT962691B
(en )
1973-12-31
APPARATUS FOR THE ELIMINATION OF WASTE
IT989187B
(en )
1975-05-20
PROCESS FOR THE PURIFICATION OF WASTE WATER
IT963697B
(en )
1974-01-21
PROCEDURE AND PLANT FOR THE PURIFICATION OF WASTE WATER
CH519444A
(en )
1972-02-29
Process for the purification of sewage
IT981696B
(en )
1974-10-10
METHOD FOR THE ELIMINATION OF WASTE
AT315766B
(en )
1974-06-10
Activated sludge system for cleaning wastewater
NL7508338A
(en )
1976-01-20
METHOD FOR PURIFICATION OF WASTE WATER.
IT975772B
(en )
1974-08-10
PROCEDURE FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER
SU448163A1
(en )
1974-10-30
The method of purification of greasy wastewater
NL7505514A
(en )
1975-11-11
METHOD FOR THE PURIFICATION OF WASTE WATER.
IT963919B
(en )
1974-01-21
PLANT FOR THE ELIMINATION OF RESIDUES OR WASTE OF FOGNATUR
SU469667A1
(en )
1975-05-05
Method of disposal of sewage
CA1028278A
(en )
1978-03-21
Process for the purification of the waste waters
IT970092B
(en )
1974-04-10
BIOCHEMICAL PROCEDURE FOR THE PURIFICATION OF WASTE WATER
SU462806A1
(en )
1975-03-05
Method of ion-exchange purification of cyanogen-containing waste water
NL7508307A
(en )
1976-01-20
METHOD FOR THE PURIFICATION OF WASTE WATER.
SU521232A1
(en )
1976-07-15
The method of purification of wastewater from organic compounds