GB2174648B
(en )
1988-10-12
Installation and removal vessel
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
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
IL81014A0
(en )
1987-03-31
Water purification methods and apparatus
GR871232B
(en )
1988-02-18
Method for the treatment of sewage and impure water
HUT57678A
(en )
1991-12-30
Process and equipment for increasing the efficiency of magnetic liquid treating devices, particularly water treating devices
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
ZA862249B
(en )
1986-11-26
Process and apparatus for removing sulphate from wastewater
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
ZA886839B
(en )
1989-04-26
Stripping and depressurization of solids and gas mixture
PT73725B
(en )
1983-02-18
Process and equipment for enlargement of colour-balanced prints in additive system
GB2171327B
(en )
1988-02-24
Immersible aerator and/or mixer apparatus
EP0226715A3
(en )
1988-04-06
Process and apparatus for the biological denitrification of water
CS404486A1
(en )
1989-05-12
Method of water removal from undsirable gaseous components by means of gradually water through-flow aeration
KR930025645U
(ko )
1993-12-20
하수 및 폐수처리장치의 표면포기기용 임펠러(Impeller)
ZA88868B
(en )
1988-09-28
Method and apparatus for the purification of water
HUT36068A
(en )
1985-08-28
Process and equipment for the realisation of submerged aerobic biological process
PL265259A1
(en )
1988-11-10
Arrangement for providing recirculation of water in sewage aeration systems