|
RU1781179C
|
|
Method for purification of ammonium-containing wastewater from heavy metals
|
|
SU1666896A1
|
|
Rotary unit for drying of materials
|
|
SU1555301A1
|
|
Method of treating waste water and circulating water to remove dissolved phosphates
|
|
SU1427209A1
|
|
Water-sampling apparatus
|
|
SU1390524A1
|
|
Sampling apparatus
|
|
SU1411447A1
|
|
Method of sampling water from observation well
|
|
SU1432393A1
|
|
Method of analyzing nonionogenic surfactant 011-7 in water
|
|
SU1372107A2
|
|
Pneumatic displacement water elevator
|
|
SU1361110A1
|
|
Method of regeneration of used chromium-containing solutions
|
|
SU1390293A1
|
|
Method of screening an operating sedimentation tank
|
|
SU1335691A1
|
|
Sampler
|
|
SU1323765A1
|
|
Pneumatic water elevator for taking samples from well
|
|
SU1386584A1
|
|
Method of purifying waste water of heavy metal compounds
|
|
SU1286535A1
|
|
Method of treating waste water containing metal ions
|
|
SU1341245A1
|
|
Method of regenerating solution
|
|
SU1271939A1
|
|
Arrangement for protecting foundations of structures erected on water-saturated low-permeability clayey soils
|
|
SU1208215A1
|
|
Fluid sampling apparatus
|
|
SU1191569A1
|
|
Method and apparatus for taking water samples from pressure-less well
|
|
SU1244099A1
|
|
Method of sorption treatment of waste water
|
|
SU1174604A1
|
|
Pneumatic substitution water elevator
|
