| Patent No. | Patent Title: |
| 4274962 | Apparatus for treating radioactive concentrates |
| 4240909 | Borane reducing resins for removal of metal ions |
| 4236974 | Process and apparatus for purifying waste waters |
| 4235712 | Removal of anionic surfactants from water |
| 4235737 | Method for treating radioactive liquids |
| 4234423 | Energy recovery system |
| 4231868 | Process for dewatering mineral and coal concentrates |
| 4230563 | Treatment of biologically-degradable waste |
| 4230562 | Method for depolluting fresh water and salt water bodies from cru... |
| 4230581 | Centrifugal separators |
| 4229293 | Dewatering of slimes from phosphate ores |
| 4229295 | Solidification of aqueous sludge |
| 4229294 | Hydroxypropylene-amino-phosphonic-sulfonic acids for inhibiting s... |
| 4228002 | Enhanced anti-solvent sedimentation of solids from liquids using ... |
| 4225430 | Biological process |
| 4224151 | Preventing scale deposition from geothermal fluids |
| 4224148 | Galvanic flow system for joint particulate recovery and liquid ... |
| 4222872 | Reclamation of molybdenum or other heavy metals from wastewater ... |
| 4221661 | Method of dehydrating organic sludge |
| 4220528 | Process for disoxidating gas or water |
| 4219416 | Process for recovering molybdenum and tungsten from mining wastew... |
| 4218315 | Oxidation and adsorption method for removing contaminating substa... |
| 4218316 | Method of clarifying and removing water from water-solids suspens... |
| 4217215 | Process for flocculation using crosslinked polysulfonium compound... |
| 4217214 | High molecular weight polyvinylamine hydrochloride as flocculant |
| 4217209 | Process for removing heavy metal sulphides from aqueous systems |
| 4212732 | Raw liquid waste treatment process |
| 4212734 | Inhibiting scale with amino-phosphonic-sulfonic acids |
| 4211652 | Water reclamation process |
| 4211650 | Water reclamation process |
| 4211651 | Water reclamation process |
| 4211646 | Waste water process |
| 4211655 | Upflow filter construction |
| 4210531 | Process for dewatering mineral concentrates |
| 4209397 | Flocculants for aqueous systems |
| 4209395 | Process for slow softening water |
| 4209398 | Water treating process |
| 4208283 | Process for treatment of waste waters |
| 4205147 | Process for recovering modified polyvinyl alcohols from aqueous s... |
| 4203836 | Method and apparatus for removing precipitated suspended solids f... |
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