|PAQUES B.V. Patent applications|
|Patent application number||Title||Published|
|20110024369||DEVICE FOR CLEANING A FLUID BY MEANS OF A FILTER BED AND METHOD FOR DETERMINING THE EXTENT OF MOVEMENT OF THE FILTER BED - The present invention relates to a device for cleaning a fluid, wherein the device comprises a vessel, a filter bed with granular filter material, such as sand, wherein the filter bed is provided in the vessel; a transport system arranged to agitate filter material of the filter bed during operation; and a sensor system. The sensor system comprises a contact body that comes in contact with the filter material in the filter bed; and a vibration sensor connected to the contact body for sensing vibrations of said contact body. The vibration sensor is arranged for producing a signal which is dependent on the vibrations detected by the sensor. The contact body comprises the wall of the vessel and/or a rod extending into the filter bed. The invention relates further to a method for determining the degree of movement of a filter bed with granular filter material, wherein a contact body is used which comes into contact with the filter material in the filter bed, and wherein the degree of movement of the filter material is determined by sensing the vibrations caused by the movement of the granular filter material of said contact body.||02-03-2011|
|20110011799||PROCESS FOR REMOVING SULFIDE FROM ALKALINE WASHING LIQUIDS - Alkaline solutions resulting from extracting sulfide from hydrocarbon fluids can be treated in a combination of one or more electrodialysis cells and a bioreactor. The electrodialysis cell (||01-20-2011|
|20090308806||Anaerobic purification device - The invention relates to an anaerobic purification device for purification of influent. The device has a reactor tank, an inlet for introducing influent into the tank, a water collecting device for collecting purified water, a gas collecting system for collecting gas from the fluid contained in the reactor, a gas-liquid separation device, a riser for passing liquid into the separation device by gas lifting action caused by gas collected in the gas collecting system, and a downer for returning liquid and sludge from the separation device into the lower tank section. According to the invention this device is characterized in that it is arranged to define, in the downer at the level of the liquid surface, a head pressure of, at least, approximately 1.4 m water column (approximately 0.14 bar). The invention also relates to a method for anaerobic purification device for purification of influent.||12-17-2009|
Patent applications by PAQUES B.V.