Abstract:
A method and system for thermal generation of electricity in direct manner. The invention relates more particularly to the generation of energy from a temperature difference. The method comprises of: • providing a container with an electrolyte at a first temperature; • placing in the container at least one anion-selective electrode and at least one cation-selective electrode with electrical capacitance; • arranging an electrical connection between the electrodes; • charging the electrodes with the resulting voltage difference; and • bringing the electrodes into contact with an electrolyte at a second temperature and discharging the electrodes.
Abstract:
The invention relates to an ultrasonic separator, and a system, waste water treatment and method therefore. The separator according to the invention comprises: a liquid channel provided with an inlet and an outlet; and One or more transducers to generate a three-dimensional separating structure between the inlet and the outlet comprising a number of node lines resulting from interfering waves for capturing the particles.
Abstract:
The invention relates to a device and method for performing an electrodialysis or reverse electrodialysis process. The device comprises: - a number of anode compartments provided with an anode placed in an anode fluidium comprising reagents for an oxidation reaction; - a number of cathode compartments, separated from the anode compartments provided with a cathode placed in a cathode fluidium comprising reagents for a reduction reaction,- a number of cation exchange membranes and anion exchange membranes, placed alternately between the cathode and the anode, whereby electrolyte compartments are formed between the cation exchange membranes and the anion exchange membranes; and - a number of intermediate layers placed between two adjacent membranes in at least a part of the electrolyte compartments, wherein each layer is provided with channels and wherein the channels of the intermediate layers are arranged such that a fluid flows through the electrolyte compartments.
Abstract:
The invention relates to a purification device and method for purifying a fluid. The purification device comprises: –wave-generating means for generating acoustic and/or electromagnetic waves capable to produce wave interference and/or local enhancement of wave intensity;and –control means for controlling the wave generating means capable to achieve a structure with the generated waves such that the structure behaves as a filter.
Abstract:
The invention relates to an energy generating system and method. The system comprises: - a first capacitive element with a current collector; - a cation-exchange material placed between the first capacitive element and the fluid; - a second capacitive element with a current collector; and - an anion-exchange material placed between the second capacitive element and the fluid, wherein the cation- and anion-exchange materials are in contact with the fluid, the fluid alternately comprising a concentrate and a diluate for respectively charging and discharging the capacitive elements, thereby generating energy.
Abstract:
A process for producing hydrogen from bio-oxidisable material is disclosed herein. The process comprises the steps of - introducing the bio-oxidisable material into a reactor provided with an anode and a cathode optionally separated by a cation exchange membrane and containing anodophilic bacteria in an aqueous medium; - applying a potential between the anode and cathode 0.05 and 1.5 volt, while maintaining a pH of between 3 and 9 in the aqueous medium; - collecting hydrogen gas at the cathode. The hydrogen production process can be intermittently switched to an electric power generation stage (biofuel cell) by adding oxygen to the cathode and separating the anode and cathode spaces by means of a cation exchange membrane.
Abstract:
The invention relates to a device for disinfecting a fluid, a disinfecting unit and a method for disinfecting a fluid. The device comprises a container for containing a fluid, with at least one inlet for introducing the fluid for disinfecting and at least one outlet for removing disinfected fluid, and further a number of disinfecting units placed in the container and comprising a disinfecting means selected from UV light sources, direct voltage electrodes or alternating voltage electrodes, or a combination thereof, characterized in that the disinfecting units are packed in the volume of the container.