Abstract: The invention relates to a system and a method for treating waste water using a passive phosphorus-capture filter lined with wood activated by the impregnation of a metal in the form of hydroxide, more specifically aluminum hydroxide or iron hydroxide. This system demonstrates phosphorus removal performances which are very closely linked to the release of iron and which support the observation that iron releases follow a cyclical trend. The method according to the invention also clearly demonstrates the cyclical nature of the reduction of phosphorus, directly linked to the same cycle of iron release at the outlet. When the medium is aerobic, it can precipitate the released iron in the form of hydroxide and thereby limit the release of iron into the outflow water and consequently its residual phosphorus.

Abstract: The invention relates to a system and a method for treating waste water using a passive phosphorus-capture filter lined with wood activated by the impregnation of a metal in the form of hydroxide, more specifically aluminum hydroxide or iron hydroxide. This system demonstrates phosphorus removal performances which are very closely linked to the release of iron and which support the observation that iron releases follow a cyclical trend. The method according to the invention also clearly demonstrates the cyclical nature of the reduction of phosphorus, directly linked to the same cycle of iron release at the outlet. When the medium is aerobic, it can precipitate the released iron in the form of hydroxide and thereby limit the release of iron into the outflow water and consequently its residual phosphorus.

Abstract: The present invention overcomes limitations of conventional synchronous signal transmission systems. The present invention provides apparent low latency synchronous signal transmission between devices, even if the transmission channel has impairments, and, allows for asynchronous transmission of signals between a transmitters and receivers that are located between the devices. Compression is preferably used for reducing the bandwidth of the transmitted data which results in asynchronous transmission of signals between a transmitter and a receiver.

Abstract: A method of biofiltration of a liquid effluent by simultaneous nitrification and denitrification uses the adding of an oxygen source at a predetermined rate and optionally the adding of a carbon source (such as whey) thus enabling the complete transformation of the nitrates (NO3) present in the effluent at the time of treatment through a biofilter. The specific operating conditions favoring the simultaneous nitrification and denitrification include the controlled injection of a slight quantity of air, adjustment of the level of nitrogen load (TKN+NO3) and the level of carbon load thereby making possible elimination for the most part of the release of unwanted nitrogen in the form of NO3 or NO2.

Abstract: The present invention provides a method of and apparatus for operating upon a sequence of video frames by splitting each frame into components, and each component into a plurality of columns. The columns are operated upon in a manner that reduced edge artifacts and compresses the columns by reducing precision in certain higher frequency bands more than other lower frequency bands. The thus operated upon frames can be transmitted, received, and processed at a receiver with low latency and very low memory storage The invention further discusses a novel way of temporal compression using signatures of the sub bands generated for spatial compression. Spatial analysis using wavelets further enables the decoder to format and scale the decoded output to suit an arbitrary display screen. The method provides a practical solution to the problem of compressing, storing, or transmitting of video with ever-increasing spatial and temporal resolutions.

Abstract: A method of biofiltration of a liquid effluent by simultaneous nitrification and denitrification uses the adding of an oxygen source at a predetermined rate and optionally the adding of a carbon source (such as whey) thus enabling the complete transformation of the nitrates (NO3) present in the effluent at the time of treatment through a biofilter. The specific operating conditions favoring the simultaneous nitrification and denitrification include the controlled injection of a slight quantity of air, adjustment of the level of nitrogen load (TKN+NO3) and the level of carbon load thereby making possible elimination for the most part of the release of unwanted nitrogen in the form of NO3 or NO2.

Abstract: The present invention provides a method of and apparatus for operating upon a sequence of video frames by splitting each frame into components, and each component into a plurality of columns. The columns are operated upon in a manner that reduced edge artifacts and compresses the columns by reducing precision in certain higher frequency bands more than other lower frequency bands. The thus operated upon frames can be transmitted, received, and processed at a receiver with low latency and very low memory storage The invention further discusses a novel way of temporal compression using signatures of the sub bands generated for spatial compression. Spatial analysis using wavelets further enables the decoder to format and scale the decoded output to suit an arbitrary display screen. The method provides a practical solution to the problem of compressing, storing, or transmitting of video with ever-increasing spatial and temporal resolutions.

Abstract: The present invention overcomes limitations of conventional synchronous signal transmission systems. The present invention provides apparent low latency synchronous signal transmission between devices, even if the transmission channel has impairments, and, allows for asynchronous transmission of signals between a transmitters and receivers that are located between the devices. Compression is preferably used for reducing the bandwidth of the transmitted data which results in asynchronous transmission of signals between a transmitter and a receiver.