Device and process for thickening and conveying waste water sludge

A thickening centrifuge for thickening of surplus sludge (807), wherein said sludge contains organisms, wherein a lysing device is integrated in said thickening centrifuge (4) for rupturing cells of organisms contained in said sludge, and wherein the lysing device (10;

• 100;
• 200;
• 300;
• 400;
• 500;
• 600;
• 700) is a friction grinding device (100;
• 200).

A thickening centrifuge for thickening of surplus sludge (807), wherein said sludge contains organisms, wherein a lysing device is integrated in said thickening centrifuge (4) for rupturing cells of organisms contained in said sludge, and wherein the lysing device (10;

• 100;
• 200;
• 300;
• 400;
• 500;
• 600;
• 700) is constructed as a profile rasp (305).

A thickening centrifuge for thickening of surplus sludge (807), wherein said sludge contains organisms, and wherein a lysing device is integrated in said thickening centrifuge (4) for rupturing cells of organisms contained in said sludge, wherein the lysing device (10;

• 100;
• 200;
• 300;
• 400;
• 500;
• 600;
• 700) is constructed as a roller crusher (405).

A thickening centrifuge for thickening of surplus sludge (807), wherein said sludge contains organisms, wherein a lysing device is integrated in said thickening centrifuge (4) for rupturing cells of organisms contained in said sludge, and wherein the lysing device (10;

• 100;
• 200;
• 300;
• 400;
• 500;
• 600;
• 700) is constructed as a passing drum (505).

A thickening centrifuge for thickening of surplus sludge (807), wherein said sludge contains organisms, wherein a lysing device is integrated in said thickening centrifuge (4) for rupturing cells of organisms contained in said sludge, and wherein the lysing device (10;

• 100;
• 200;
• 300;
• 400;
• 500;
• 600;
• 700) is constructed as a cutting unit (605).

A thickening centrifuge for thickening of surplus sludge (807), wherein said sludge contains organisms, wherein a lysing device is integrated in said thickening centrifuge (4) for rupturing cells of organisms contained in said sludge, and wherein the lysing device (10;

• 100;
• 200;
• 300;
• 400;
• 500;
• 600;
• 700) is constructed as a pin milling device (705).

A process for minimizing the amount of decayed or residual sludge produced by treatment plants, said process comprising the following steps:

• allowing waste water to settle in at least one settling tank (802) to form settled surplus sludge (807) and solids-reduced waste water;
• thickening the surplus sludge (807) from the settling tank (804) by passing through at least one thickening centrifuge (4), wherein approximately 0.5 to 50% of the amount of the micro-organism cells originally contained in the surplus sludge (807) are lysed in the thickening centrifuge (4) during the thickening;
• conveying the lysed thickened settled surplus sludge (807) to at least one anaerobic reactor (812) by means of at least one conveyance device;
• anaerobic converting said thickened settled surplus sludge (807) in said at least one anaerobic reactor (812);
• conveying the solids-reduced waste water following settling to an aerobic activation device (803);
• and
• aerobic conversion of the solids-reduced waste water in said at least one aerobic activation device (803).