Abstract: A method for treating a separation facility is provided according to the invention. The separation facility includes a plurality of membranes for providing separation of a feed product. The method includes steps of providing liquid flow through a plurality of membranes; treating the plurality of membranes with a multiple phase treatment composition comprising a gaseous phase and a liquid phase at a volumetric ratio of the gaseous phase to the liquid phase of at least about 5:1; and providing a liquid flow through the plurality of membranes.

Abstract: The invention relates to acidic cleaning compositions in the form of solid blocks which contain citric acid and one or more acids selected from adipic, succinic and glutaric acid as acidic components and to their production and use.

Abstract: The invention relates to a method for improving the performance of filtration devices by adding P- and/or N-containing compounds to the medium to be filtered.

Abstract: A method for treating a separation facility is provided according to the invention. The separation facility includes a plurality of membranes for providing separation of a feed product. The method includes steps of providing liquid flow through a plurality of membranes; treating the plurality of membranes with a multiple phase treatment composition comprising a gaseous phase and a liquid phase at a volumetric ratio of the gaseous phase to the liquid phase of at least about 5:1; and providing a liquid flow through the plurality of membranes.

Abstract: A method of washing textiles in an institutional washing machine wherein soil-containing wastewater is regenerated through a nanofiltration membrane and recycled to the washing process.

Abstract: An aqueous alkaline composition for cleaning equipment used in the food industry wherein the composition contains potassium hydroxide or a mixture of potassium hydroxide and sodium hydroxide and wherein the potassium hydroxide is present in an amount of at least 20% by weight, based on the weight of hydroxide present in the composition. A process for regenerating the cleaning solution is also disclosed.

Abstract: A process for cleaning processing equipment for beverages or foods including the steps of(a) pumping a cleaning solution from its holding tank through the processing equipment in the absence of a pre-rinsing step,(b) collecting a first portion of the cleaning solution returning from the processing equipment into a recycling tank,(c) returning to the holding tank for the cleaning solution the main portion of the cleaning solution flowing through the processing equipment,(d) subjecting the first portion of the cleaning solution collected into the recycling tank to a separation process to provide a soil-rich concentrate and a low soil content regenerate,(e) transferring the regenerate to the holding tank for the cleaning solution, and(f) disposing of the soil-rich concentrate as waste.