| Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) |
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| 09/22/2004 | CN1531452A Method of clarifying bayer process liquors using salicylic acid containing polymers |
| 09/22/2004 | CN1167629C Centrifugal concrete article laitance liquid-solid separating treatment process |
| 09/22/2004 | CN1167626C Electrocogulative waste water reactor connected with electric power |
| 09/22/2004 | CN1167497C Device and method for point of use treatment of effluent gas streams |
| 09/21/2004 | US6793826 Siphoning tartrates from settled grape extract |
| 09/21/2004 | US6793814 Clarifying tank |
| 09/21/2004 | CA2301525C Improved helical separator |
| 09/21/2004 | CA2188859C Method and apparatus for withdrawing effluent from a solids-contacting vessel |
| 09/16/2004 | WO2004079716A1 Method for positioning small particles in a fluid |
| 09/16/2004 | WO2004028975A9 Automated cleaning system |
| 09/16/2004 | US20040178138 Centrifuge with controlled discharge of dense material |
| 09/16/2004 | US20040178134 Flocculation apparatus |
| 09/15/2004 | EP1457462A2 Flocculation apparatus |
| 09/15/2004 | EP1456133A1 Method for treating water by ballasted flocculation and decantation |
| 09/15/2004 | EP1229979B1 Separation of silt and water |
| 09/15/2004 | EP0953014B1 Aqueous dispersion of high intrinsic viscosity polymer and its production and use |
| 09/15/2004 | CN2640568Y Floating decanter |
| 09/15/2004 | CN1166569C Oil field visous crude sewage silicone-removing and cleaning process |
| 09/14/2004 | US6790429 Mxing an iron salt and an oxidizing agent in a mixing chamber; delivering portion of the mixture to a reaction chamber; continuously generating ferrate in the reaction chamber; delivering at least a portion of the ferrate to a site of use |
| 09/14/2004 | US6790367 Method and apparatus for separating and measuring solids from multi-phase well fluids |
| 09/14/2004 | US6790346 Cyclone separator suitable for variable fluid flow rates |
| 09/10/2004 | WO2004077009A2 A method and device for manipulating individual small objects |
| 09/10/2004 | WO2004076510A2 High molecular weight polymers containing pendent salicyclic acid groups for clarifying bayer process liquors |
| 09/10/2004 | WO2004076358A2 Dissolved air flotation system |
| 09/09/2004 | DE10308837A1 System for processing liquids, especially water purification plant, comprises two vessels, especially secondary settling tank and skimming trough, separated by tubular membrane which is inflated to prevent liquid flow |
| 09/09/2004 | DE10306627A1 Transportable dewatering container for sludge has first chamber discharging via overflow partition to second chamber with inclined bank of parallel panels |
| 09/08/2004 | EP1261438A4 Well-cleaning system |
| 09/08/2004 | EP1128887A4 Blood processing systems and methods with sensors to detect contamination |
| 09/08/2004 | EP0958023B1 Apparatus for screening |
| 09/08/2004 | CN2638819Y Solid-liquid separating device |
| 09/08/2004 | CN2638818Y Traction thickener |
| 09/08/2004 | CN1526890A Drainage treating apparatus |
| 09/08/2004 | CN1165501C Method for removing soluble metal of organic composite acid and alkaline effluent material |
| 09/02/2004 | WO2004074184A2 Wastewater purification apparatus |
| 09/02/2004 | WO2004073830A1 Solids separation and tank therefor |
| 09/02/2004 | US20040171706 High molecular weight flocculant |
| 09/02/2004 | US20040171705 hydrolysis of acrylonitrile polymers in the presence of acid or basic catalysts to form hydrophilic reaction products used for water treatment; pollution control |
| 09/02/2004 | US20040168991 Method and apparatus for clarifying and/or thickening a slurry |
| 09/02/2004 | US20040168987 Thickening solution; adding flocculant; mixing; separation |
| 09/02/2004 | US20040168967 Charging supernatant from vessel without drawing floating solids or scum; weir with central opening; lift and drive; discharging pipe |
| 09/02/2004 | US20040168965 Self contained dissolved air flotation system |
| 09/02/2004 | US20040168964 Dissolved air flotation system |
| 09/02/2004 | US20040168576 Modulated acoustic agglomeration system and method |
| 09/01/2004 | EP1452215A1 Device and process for clarifying solids laden liquids |
| 09/01/2004 | EP1450926A1 Method and apparatus for collecting and then disposing sand contained in production fluid |
| 09/01/2004 | CN2636940Y Advection type precipitation poad |
| 09/01/2004 | CN1164504C Method for treatment of sea red tides and fresh water bloom |
| 09/01/2004 | CN1164503C High-molecular inorganic flocculant |
| 09/01/2004 | CN1164345C Process for separating catalyst powder from catalytically cracked oil slurry |
| 08/31/2004 | US6783685 For continuous treatment of cooking oil comprising, a conduit to a treatment station having a filter system for removing particulate material from the oil, and remvoing particulate from the filter system and second conduit to return the oil |
| 08/31/2004 | US6783683 Stormwater pollutant separation system and method of stormwater management |
| 08/26/2004 | WO2004071989A1 A method of treating an aqueous suspension of kaolin |
| 08/26/2004 | WO2004071213A1 Method of removing unwanted components from an aqueous flow derived from the processing of edible products having a natural origin |
| 08/26/2004 | US20040164033 Cleaning apparatus and method |
| 08/25/2004 | EP1449812A1 Wastewater treatment arrangement and wastewater well |
| 08/25/2004 | EP1349635B1 Tank for draining a granular material/liquid mixture |
| 08/25/2004 | CN1163424C Sewage quick purifying and circulation reusing process and sewage treating machine for solid-liquid separation |
| 08/24/2004 | US6780333 Centrifugation pheresis method |
| 08/24/2004 | US6780310 Variable vortex baffle fluid filter |
| 08/19/2004 | WO2004069963A1 Settling aids for solids in hydrocarbons |
| 08/19/2004 | US20040159613 Recovering aggregate granite, sandstone, limestone, or igneous , "red mud", titanium dioxide pigment, titanium dioxide neutralization waste, and phosphate clay fine particles; adding cationic coagulant and/or anionic/nonionic polymer blend |
| 08/19/2004 | US20040159608 Method and apparatus for treating animal waste and wastwater |
| 08/19/2004 | DE20305719U1 Waste water treatment circular basin has rotating overhead gantry with surface scraper removing floating residues from outer margins |
| 08/19/2004 | CA2420002A1 F.o.g. (solid/semid solid fats, oil & grease) liquid separator system |
| 08/18/2004 | EP1446212A1 Lamellar clarifier |
| 08/18/2004 | EP1173500B1 Method and device for separating solids from polymer solutions |
| 08/18/2004 | CN2633391Y Solid/liquid separator |
| 08/18/2004 | CN1521130A Treatment system for waste water from exhaust gas desulfurization in gas-electricity generating device |
| 08/18/2004 | CN1162346C Dye adsorbent and its application in treating dye effluent |
| 08/18/2004 | CN1162345C Preparation method of polysilicon-aluminium flocculant |
| 08/17/2004 | US6776903 Solids suspended in waste water can be filtered without consuming a large amount of electrical energy |
| 08/17/2004 | CA2262304C Suction and discharge apparatus for a drilling fluid |
| 08/12/2004 | WO2004053330A3 Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| 08/11/2004 | EP1368390A4 High molecular weight polymers containing pendant salicylic acid groups |
| 08/11/2004 | CN2632081Y Sewage treating apparatus for small town |
| 08/11/2004 | CN2632072Y High-performance composite clearing reacting pool |
| 08/11/2004 | CN1520332A Method and appts. for clarifying slurry |
| 08/11/2004 | CN1520331A Method and appts. for clarifying and/or thickening slurry |
| 08/11/2004 | CN1161287C Method of treating waste stream using photosynthetic microorganisms |
| 08/10/2004 | US6773589 Filtration apparatus includes tank having upper chamber and lower baffle, layers of stone and carbon therebetween, water inlet and outlet below baffle |
| 08/10/2004 | CA2192785C Apparatus and methods for separating solids from flowing liquids or gases |
| 08/05/2004 | WO2004065307A2 Small-scale wastewater treatment installation comprising concentric treatment stages |
| 08/05/2004 | WO2004064977A1 Auxiliary scraper arrangement |
| 08/05/2004 | WO2004052790A3 Apparatus for treatment of wastewater employing membrane bioreactors |
| 08/05/2004 | WO2001091878A8 Inorganic electrolytic coagulant and method for modifying mud using said inorganic electrolytic coagulant |
| 08/05/2004 | US20040152937 Alkylphenol-formaldehyde alkoxylated resin and adduct of alkylphenol-formaldehyde alkoxylated resin with polyacrylic acid |
| 08/05/2004 | US20040149667 Cyclone structured to prevent fluid vortex mixing in settling chamber which is housed in removable bulb; allows majority of liquid to exit through overflow; separating amalgam from dental vacuum system effluent |
| 08/05/2004 | US20040149662 Adjusting to alkaline pH and warm temperature then adding highly cationic, high moleculare weight flocculant; simple, low cost; decreasing contaminated sludge production |
| 08/05/2004 | US20040149648 Water clarification system |
| 08/05/2004 | US20040149639 Apparatus for mixing and dispensing influent slurry into a tank and systems incorporating same |
| 08/05/2004 | US20040149630 Treatment of suspensions |
| 08/04/2004 | EP1442066A1 Compositions comprising chitosan in the form of nano-sized fibres |
| 08/04/2004 | EP1441983A1 Apparatus for continuous slag treatment of silicon |
| 08/04/2004 | EP1441828A1 Apparatus for and method of settling of mineral slurries |
| 08/04/2004 | EP1015044A4 Apparatus and method for blood separation |
| 08/04/2004 | CN2629795Y Rack rake |
| 08/04/2004 | CN1160260C Method of waste water treatment by flocculating sedementation |
| 07/29/2004 | US20040147723 Moringa seed proteins |
| 07/29/2004 | US20040144730 Method and unit for the treatment of water by ballasted flocculation and gravity separation with variable function modes |
| 07/29/2004 | US20040144728 Continuously regenerating a reactive filter media while simultaneously filtering contaminants from fluid flowing through the filter media |