Patents
Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338)
10/1994
10/04/1994US5352371 Method and apparatus for repeatedly passing a fluid through a fluid treatment unit
10/04/1994US5352356 Stovepipe decanter apparatus
09/1994
09/29/1994WO1994021561A1 Compact clarifier system for municipal waste water treatment
09/29/1994DE4407983A1 Arrangement of functional elements for digestion towers
09/28/1994EP0465485B1 Method for separating oil and water emulsions
09/27/1994US5350524 Mixed polysaccharide precipitating agents and insulating articles shaped therefrom
09/27/1994US5350511 Sewage purification apparatus
09/25/1994CA2119528A1 Rotating shaft lifting assembly
09/25/1994CA2118970A1 Preparative analytical technique to isolate surfactant from oil/water emulsions
09/22/1994DE4307297A1 Process and process arrangement for sucking and filtering sediments from sludge traps
09/20/1994US5348721 Polyaluminumchlorosulfates and preparation and uses thereof
09/15/1994WO1994020833A1 Method and apparatus for positional manipulation and analysis of suspended particles
09/15/1994DE4406133A1 Installation for recovering liquid loaded with waste materials
09/15/1994DE4400982A1 Compositions for treating wastewater containing heavy metals
09/15/1994DE4307952A1 Apparatus and process for soil cleaning
09/14/1994EP0614401A1 Method for controlling the regeneration of a water treatment system
09/14/1994CN2176817Y 离心过滤器 Centrifugal filter
09/14/1994CN1025909C Manufacturing mthod of aluminium-iron and irons solid water-cleaning agent
09/13/1994US5346643 Polynuclear complex salt waste water clarificants and their preparation
09/13/1994US5346631 Liquid or solid phase dispersed in a carrier vapor phase, deflecting fluid flow, forming two layers of different density
09/13/1994US5346629 Method for processing filter backwash fluid for reuse as cleaning fluid
09/13/1994CA1332006C Liquid waste treatment system
09/08/1994DE4306652A1 Aqueous calcium hydroxide suspension and use thereof
09/07/1994EP0613724A2 Separating constituents of a liquid material
09/07/1994EP0613708A1 Device for purifying a basin
09/07/1994EP0613707A1 Cleaning installation in particular for treating washing water containing paint and/or glue
09/07/1994CN1091675A Centrifugal filter press sedimentation dewatering machine
09/06/1994US5344573 Steaming; water pollution control; reuse
09/06/1994US5344572 Method for treating waste pickle liquor
09/06/1994US5344570 Entrainment of solids, centrifuging, pumping and separation of solids
09/06/1994CA2001173C Relating to the recovery of silver
09/06/1994CA1331895C System and method for the extraction of cyanide from tails liquor
09/06/1994CA1331893C Fluidized bed process and apparatus
09/06/1994CA1331873C Liquid separator
09/01/1994WO1994019486A1 Centrifugal method and apparatus for isolating a substance from a mixture
09/01/1994CA2156860A1 Centrifugal method and apparatus for isolating a substance from a mixture
08/1994
08/31/1994EP0612264A1 Improvements in or relating to separators
08/31/1994EP0612238A1 A container for receiving and separating a fluid, preferably blood plasma, into its ingredients.
08/31/1994CN2175638Y Vibrative filter
08/30/1994USRE34713 Hydrolysis product of N-vinylformamide-(meth)acrylonitrile copolymer; increasing paper strength
08/30/1994US5342538 Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
08/25/1994DE4322930C1 Underwater sludge remover for circular clarifying tanks
08/25/1994DE4314939C1 Process for separating fine particles of high specific gravity solids from emulsions and apparatus for carrying out the process
08/24/1994EP0611579A1 Solution suspension separating apparatus for blood and plasma
08/24/1994EP0611322A1 Improvements in or relating to separators.
08/24/1994CN2175024Y Device for coagulation, clarification and separation of liquid
08/23/1994US5340485 Apparatus and method for clarifier sludge collection
08/23/1994US5340482 Surface skimming apparatus
08/23/1994US5340481 Dense media processing cyclone
08/23/1994US5340470 Phase separator apparatus
08/18/1994WO1994018249A1 Preparation of polyacrylates
08/18/1994WO1994017917A1 Device with an aggregate separator for the treatment of dirty water
08/18/1994WO1994017895A1 Process and apparatus for controlling the dewatering of suspensions
08/18/1994WO1994017891A1 Induced ionic reaction device with radial flow
08/18/1994DE4008332A1 Process and equipment for filtering and treating contaminated water
08/17/1994EP0610955A2 Quaternized aminomethyl acrylamide polymermicroemulsions, methods of producing and use of same
08/17/1994CN2174246Y Siphon sludge machine
08/16/1994US5338459 Muddy and waste water treatment method
08/16/1994US5338449 Brine refining apparatus
08/16/1994US5338421 Applying voltage to teh system, suppresses electrolysis of water
08/13/1994CA2115412A1 Quaternized tertiary aminomethyl acrylamide polymer microemulsions with improved performance
08/11/1994DE4303924A1 Process and equipment for operating an inflow structure for a biological effluent treatment plant running on pure oxygen
08/11/1994DE4303278A1 Process for treating the contents of fat separators
08/11/1994DE4302003A1 Settling apparatus for separating a mixture of materials, in particular of solid particles from liquids
08/09/1994US5336418 Inserting suction line to remove water and heavy contaminants
08/09/1994US5336417 Slotted; dragged along bottom; lifted; tilted
08/09/1994US5336402 Sewage treatment apparatus
08/09/1994US5335395 Remote controlled sludge removal apparatus
08/09/1994CA1331407C Sewage treatment plant
08/09/1994CA1331348C Water treatment system for rectangular clarifiers
08/04/1994WO1994017394A1 Control of dewatering processes
08/04/1994DE4302932A1 Rain water treatment basin
08/03/1994EP0608882A1 Apparatus for separation of liquid
08/03/1994EP0608352A1 Separators
08/03/1994CN1090356A Closed ciculation method for water used in producing paper by regenerated pulp
08/02/1994CA1331124C Flocculation of suspended solids from, aqueous solutions
07/1994
07/28/1994DE4301825A1 Suspension thickening process giving reduced time to obtain required consistency
07/27/1994EP0607447A1 Sludge scraping-up apparatus
07/27/1994EP0607436A1 Scum removing device
07/27/1994EP0607236A1 Processing waste washout liquid containing photopolymer from printing plate manufacture
07/26/1994US5332500 Three-phase cyclone separator
07/21/1994WO1994016157A1 Water management system
07/21/1994WO1994015691A1 A hydraulic separation device
07/21/1994WO1994015690A1 System for removing solids from a liquid
07/21/1994DE4333666C1 Arrangement for determining optically visible phase boundaries in liquids
07/21/1994DE4301152A1 Compact separator - has round housing to contain sludge settling and light matter separations sections and sampling section
07/20/1994EP0606716A1 Method and apparatus for separating phases
07/20/1994EP0606398A1 Improved deinking method using ink agglomeration
07/20/1994CN1025491C Apparatus of anerobic fluidized bed
07/19/1994US5330671 High terpene citrus peel oil
07/19/1994US5330660 Method for evacuating floating sludge from settling tanks and thickener tanks
07/19/1994US5330659 Amines, hydrazines, hydroxylamines for recovering overspray from spray booths
07/19/1994US5330658 Solution decontamination method using precipitation and flocculation techniques
07/19/1994US5330641 Separator of solid particles for variable discharge fluid flow rates in dental apparatus
07/19/1994US5330289 Serpent sediment-sluicing system
07/14/1994DE4400613A1 Oil and oil sludge separator from waste water
07/13/1994EP0442944B1 Horizontal removable pump for filtration systems
07/13/1994CN2171399Y Intercept precipitating net
07/13/1994CN1089240A Processing method for water decontaminating agent
07/12/1994US5328584 Passive circulation in electrolytic fluid treatment systems