YU83184A
(en )
1987-06-30
Waste water treatment with multi stage, especially two stage process using activated sludge
AU619742B2
(en )
1992-02-06
Waste water treating process
GB2196955B
(en )
1990-10-17
Method for treating waste water.
EG18766A
(en )
1994-10-30
Sewage treatment plant.
AU7156481A
(en )
1981-10-26
Wastewater treatment process
AU587060B2
(en )
1989-08-03
A process and an apparatus for the preparation of a disinfectant for water, such as drinking or swimming water
AU8112387A
(en )
1988-06-02
Process for wastewater treatment
EP0085111A4
(en )
1984-06-29
ASSEMBLED SEMI-PLEASANT MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF.
DE3469887D1
(en )
1988-04-21
Process for waste water purification
DE3173508D1
(en )
1986-02-27
Pressurized aeration tank for activated-sludge process sewage treatment
AR243139A1
(es )
1993-07-30
Metodo para el pretratamiento de materias primas para la formacion de vidrio y aparato para llevarlo a cabo.
ES8402237A1
(es )
1984-01-16
Mejoras introducidas en el procedimiento de reduccion de la salinidad del agua de mar.
EP0266425A4
(en )
1988-09-28
AERATION TYPE WATER TREATMENT PLANT.
HU893401D0
(en )
1990-12-28
Process for water softening and electrolyzer for executing the process
GB2228930B
(en )
1992-09-02
Sewage treatment process
RO100158A2
(ro )
1991-10-25
Procedeu de epurare a apelor reziduale de la fabricarea zaharului
NO881414L
(no )
1988-03-29
Fremgangsmaate for behandling av spillvann og annet urent vann.
NO905208L
(no )
1991-06-07
Fremgangsmaate for behandling av vann ved samtidig flokkulering og adsorbsjon ved hjelp av partielt hydrofobe polyelektrolytter.
AU4895785A
(en )
1986-05-08
Wastewater treatment process
ZA887848B
(en )
1989-07-26
Method for introducing and bonding gas into water,apparatus for carrying out the method and water produced by the method
AU7245387A
(en )
1987-11-05
Water treatment apparatus
PT72872A
(en )
1981-05-01
Process for the treatment of reverse osmosis membranes
EP0183678A3
(en )
1989-01-18
Process for the final treatment of molasses or vinasses, and apparatus for carrying out this process
PT84961A
(en )
1987-06-01
Water treatment process - involves pre-oxidn. with air, oxidn. with sodium hypochlorite, flocculation and sepn.
GR870485B
(en )
1987-04-30
Process for sewage and sludge treatment