(WO9623736-A1)      A device for the thickening of sewage sludge has 1 centrifuge (4), and 1 lysis unit on the centrifuge. The lysis unit is a device which disrupts cells by setting up strong hydrodynamic forces, by rapid shearing of the fluid. Hence the cells contained in the sewage sludge are broken down mechanically. This can assist their thickening, i.e. concn..    Also claimed are: (i) a pump for waste water contg. sludge, with a lysis unit to split the cells; and a sewage treatment plant.    USE -   Used in the thickening of sewage sludge, pumping of waste water contg. sludge and the construction of sewage works.    ADVANTAGE -   The devices outlined, by disrupting the cells of the living organisms contained in the sludge supplied to them, reduce the quantity of sludge to be disposed of, from sewage works, Improving dewatering. Anaerobic digestion, producing biogas, is accelerated, also speeding the processing to waste biomass and clean outfall.    (EP807089-B1)      A device for the thickening of sewage sludge has 1 centrifuge (4), and 1 lysis unit on the centrifuge. The lysis unit is a device which disrupts cells by setting up strong hydrodynamic forces, by rapid shearing of the fluid. Hence the cells contained in the sewage sludge are broken down mechanically. This can assist their thickening, i.e. concn..    Also claimed are: (i) a pump for waste water contg. sludge, with a lysis unit to split the cells; and a sewage treatment plant.    USE -   Used in the thickening of sewage sludge, pumping of waste water contg. sludge and the construction of sewage works.    ADVANTAGE -   The devices outlined, by disrupting the cells of the living organisms contained in the sludge supplied to them, reduce the quantity of sludge to be disposed of, from sewage works, Improving dewatering. Anaerobic digestion, producing biogas, is accelerated, also speeding the processing to waste biomass and clean outfall.    (JP11504561-W)      A device for the thickening of sewage sludge has 1 centrifuge (4), and 1 lysis unit on the centrifuge. The lysis unit is a device which disrupts cells by setting up strong hydrodynamic forces, by rapid shearing of the fluid. Hence the cells contained in the sewage sludge are broken down mechanically. This can assist their thickening, i.e. concn..    Also claimed are: (i) a pump for waste water contg. sludge, with a lysis unit to split the cells; and a sewage treatment plant.    USE -   Used in the thickening of sewage sludge, pumping of waste water contg. sludge and the construction of sewage works.    ADVANTAGE -   The devices outlined, by disrupting the cells of the living organisms contained in the sludge supplied to them, reduce the quantity of sludge to be disposed of, from sewage works, Improving dewatering. Anaerobic digestion, producing biogas, is accelerated, also speeding the processing to waste biomass and clean outfall.    (US6059971-A)      A device for the thickening of sewage sludge has 1 centrifuge (4), and 1 lysis unit on the centrifuge. The lysis unit is a device which disrupts cells by setting up strong hydrodynamic forces, by rapid shearing of the fluid. Hence the cells contained in the sewage sludge are broken down mechanically. This can assist their thickening, i.e. concn..    Also claimed are: (i) a pump for waste water contg. sludge, with a lysis unit to split the cells; and a sewage treatment plant.    USE -   Used in the thickening of sewage sludge, pumping of waste water contg. sludge and the construction of sewage works.    ADVANTAGE -   The devices outlined, by disrupting the cells of the living organisms contained in the sludge supplied to them, reduce the quantity of sludge to be disposed of, from sewage works, Improving dewatering. Anaerobic digestion, producing biogas, is accelerated, also speeding the processing to waste biomass and clean outfall.