CH468941A
(en )
1969-02-28
Process for dewatering waste sludge
AT330692B
(en )
1976-07-12
FILTER PRESS, IN PARTICULAR FOR DRAINING SLUDGE IN SEWAGE TREATMENT PLANTS
CH469225A
(en )
1969-02-28
Process for the incineration of organic sewage sludge and device for carrying out the process
AT333210B
(en )
1976-11-10
DEVICE FOR BIOLOGICAL WASTE WATER TREATMENT
AT254086B
(en )
1967-05-10
Process and system for anaerobic biological processing of putrid sludge, in particular sewage sludge
AT273833B
(en )
1969-08-25
Process and sewage treatment plant for the biological purification of waste water
AT274693B
(en )
1969-09-25
Device for the biological purification of waste water
DK109437C
(en )
1968-04-22
Method and plant for sewage treatment by the sludge recycling method.
CH354038A
(en )
1961-04-30
Process for the purification of waste water, in particular sewer water
ATA77476A
(en )
1978-04-15
DEVICE FOR THE CONVERSION OF FOREIGN MATERIALS CONTAINED IN WATER, IN PARTICULAR WASTE WATER, IN PARTICULAR POLLUTANTS, INTO HARMFUL SUBSTANCES
AT345856B
(en )
1978-10-10
FILTER PRESS, ESPECIALLY FOR THE DRAINAGE OF SLUDGE IN WASTEWATER TREATMENT PLANTS
AT299834B
(en )
1972-07-10
Purification device for the biological purification of waste water
CH439138A
(en )
1967-06-30
Device for aerating liquids, in particular waste water
AT245506B
(en )
1966-03-10
Process for dewatering sludge in sewage systems
CH420224A
(en )
1966-09-15
Process for the recycling of waste and sewage sludge, pellets produced using the method and use of the pellets
CH443543A
(en )
1967-09-15
Process and device for the incineration of sewage sludge
AT213352B
(en )
1961-02-10
Device for dewatering sludge, in particular sewage sludge, or for filtering waste water
AT213353B
(en )
1961-02-10
Device for dewatering sludge, in particular sewage sludge, or for filtering waste water
AT258962B
(en )
1967-12-27
Method and arrangement for filtering, in particular for dewatering sewage sludge
AT254093B
(en )
1967-05-10
Device for separating solid parts entrained in flowing liquids, for example waste water
CH558306A
(en )
1975-01-31
PLANT FOR TREATMENT OF SLUDGE, IN PARTICULAR SEWAGE SLUDGE.
AT240298B
(en )
1965-05-25
Process for dewatering sewage sludge, in particular sludge of municipal origin
AT291139B
(en )
1971-07-12
Device for the biological purification of waste water
CH385121A
(en )
1964-11-30
Sewage treatment plant with a clarification tank for clarifying flocculation of liquids, in particular waste water
AT281703B
(en )
1970-05-25
Aeration device for the biological purification of waste water