Abstract: Filtering systems can process wastewater to provide a primary output of clear water and a secondary output of sludge. The filtering systems are compact, optionally mobile and optionally truck-mountable, and have a high throughput capacity and cleaning effectiveness. For a system having a volume VS, and for wastewater having a TSS content of TSS1 and a COD of COD1, the primary output may have a TSS<1% of TSS1, a COD<2% of COD1, and a turbidity of <1, or 0.5, or 0.3 NTU. The system may receive the wastewater at a flow rate F1 and provide the primary output while receiving the wastewater, and F1/VS may be ?0.2 hr?1. F1 may be ?1 L/sec, and VS may be ?5 m3, or ?30 m3, or in a range from 20-30 m3. The primary output may have a flow rate ?40%, or 50%, or 60% of F1.

Abstract: A process and system for applying an adhesive to a core during the production of rolled paper products is disclosed. The system of the present invention is generally directed to the use of pumping devices that meter out constant volumetric amounts of an adhesive onto a core through a plurality of adhesive applicators simultaneously. The systems includes, for instance, a positive displacement pump system in which a fluid at substantially constant pressure is fed to a pumping device for dispensing the adhesive to a plurality of adhesive applicators in constant volumetric amounts.

Abstract: A process and system for applying an adhesive to a core during the production of rolled paper products is disclosed. The system of the present invention is generally directed to the use of pumping devices that meter out constant volumetric amounts of an adhesive onto a core through a plurality of adhesive applicators simultaneously. The systems includes, for instance, a positive displacement pump system in which a fluid at substantially constant pressure is fed to a pumping device for dispensing the adhesive to a plurality of adhesive applicators in constant volumetric amounts.