JPS55159897A
(en )
1980-12-12
Facility for purifying waste water
GB2021549B
(en )
1982-09-29
Apparatus for the anaerobic purification of waste water
DE3060742D1
(en )
1982-10-07
Apparatus for the aeration of waste water or sludge
JPS5678700A
(en )
1981-06-27
Method of drying sewage sludge
JPS54100140A
(en )
1979-08-07
Removal of heavy metal from waste water sludge
JPS5667592A
(en )
1981-06-06
Method of disposing activated sludge of waste water
JPS5335263A
(en )
1978-04-01
Purifying method of waste water by two stage activated sludge
GB2053884B
(en )
1983-03-02
Removal of phosphorus compounds from waste water
DE2860355D1
(en )
1981-03-12
Process for the biological purification of waste water
JPS54139258A
(en )
1979-10-29
Sludge disposal method
GB2033769B
(en )
1982-12-08
Method of purifying waste water
HU178995B
(en )
1982-07-28
Process and equipment for the combined utilization of waste and the purification of sewages
JPS5775200A
(en )
1982-05-11
Method of conditioning sewage sludge
ZA806453B
(en )
1981-10-28
Method for dewatering the sludge layer of an industrial prcess tailings pond
ZA782536B
(en )
1979-06-27
A method for the purification of waste water and an installation for performing the method
YU213681A
(en )
1983-12-31
Process for the purification of waste water
JPS53140872A
(en )
1978-12-08
Method of utilizing waste water
YU246078A
(en )
1982-06-30
Process for the biological purification of waste water
JPS52103839A
(en )
1977-08-31
Method of purifying waste water
JPS5729792A
(en )
1982-02-17
Disposal of air-bubble-mixed sludge
CS190076B1
(en )
1979-05-31
Method for the purification of waste water and sludge from elementary phosphorus storage
JPS5493853A
(en )
1979-07-25
Method of continuously purifying waste water
JPS53144150A
(en )
1978-12-15
Method of purifying waste water
JPS52115557A
(en )
1977-09-28
Method of purifying waste water
JPS52120553A
(en )
1977-10-11
Method of purifying waste water