GB2174648B
(en )
1988-10-12
Installation and removal vessel
EP0256965A3
(en )
1989-02-08
Method of and means for hydrodynamic mixing
EP0269913A3
(en )
1990-03-14
Mixing apparatus and methods
FR2589081B1
(fr )
1989-04-28
Procede et dispositif pour l'epuration de gaz de rejet
EP0198334A3
(en )
1988-06-15
Water clarifier and sewage treatment device
GB8417482D0
(en )
1984-08-15
Separating equipment and water treatment apparatus
NZ221988A
(en )
1989-07-27
Methods and device for detection of microorganisms
ZA878167B
(en )
1988-07-27
Filtering arrangement and filtering apparatus made of such arrangements
GB8627175D0
(en )
1986-12-10
Treatment of inorganic particles
CS893585A1
(en )
1990-03-14
Complex device for multistage treatment and cleaning of water
EP0219837A3
(en )
1988-03-02
Apparatus and circuit for the creation of vortex rings
EP0268137A3
(en )
1989-04-12
Metal-clad switchgear and method of cooling thereof
DE3690472D2
(en )
1987-10-08
Method and device for the oxygen enrichment of waters
IL81014A0
(en )
1987-03-31
Water purification methods and apparatus
CS404386A1
(en )
1989-07-12
Equipment for undesirable gaseous components removal from water on principle of through-flow aeration and recirculation
PT85484A
(en )
1987-09-01
Method for the treatment of sewage and other impure water
GB2199821B
(en )
1990-04-04
Method of and arrangement for purifying contamied water
HUT57164A
(en )
1991-11-28
Process and equipment for biological-physical purification of sewages
CS404286A1
(en )
1989-06-13
Method of undesirable gaseous components removal from water by means of aeration and recirculation
GB2130570B
(en )
1986-09-17
Method for the elimination or prevention of blockages in bottom aerators in water treatment and sewage treatment under operating conditions
EP0308025A3
(en )
1989-04-26
Stripping and depressurization of solids and gas mixture
PT73725A
(en )
1981-10-01
Process and equipment for enlargement of colour-balanced prints in additive system
EP0226715A3
(en )
1988-04-06
Process and apparatus for the biological denitrification of water
GB2171327B
(en )
1988-02-24
Immersible aerator and/or mixer apparatus
CS404486A1
(en )
1989-05-12
Method of water removal from undsirable gaseous components by means of gradually water through-flow aeration