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: Lotion-containing sheets, such as tissue sheets or non-woven sheets, having alternating areas of high and low lotion add-on in the machine direction of the sheet have been found to reduce or eliminate downstream build-up of lotion on process equipment.

Abstract: Chemical additives can be adsorbed on cellulosic papermaking fibers at high levels with a minimal amount of unadsorbed chemical additives present in the papermaking process water. A method includes treating a fiber slurry with an excess of the chemical additive, allowing sufficient residence time for adsorption to occur, filtering the slurry to remove unadsorbed chemical additives, and redispersing the filtered pulp with fresh water. Filtrate from the thickening process contains unadsorbed chemical additive and it is not sent forward in the process with the chemically treated fibers. The method can be employed to make improved paper products.

Abstract: Chemical additives can be adsorbed on cellulosic papermaking fibers at high levels with a minimal amount of unadsorbed chemical additives present in the papermaking process water. A method includes treating a fiber slurry with an excess of the chemical additive, allowing sufficient residence time for adsorption to occur, filtering the slurry to remove unadsorbed chemical additives, and redispersing the filtered pulp with fresh water. Filtrate from the thickening process contains unadsorbed chemical additive and it is not sent forward in the process with the chemically treated fibers. The method can be employed to make improved paper products.