Abstract: In a method of compacting waste (W), wherein waste is introduced into a generally box shaped elongated waste container (3) through at least one waste inlet (5) thereof and is collected in the waste container (3) at a waste collection station (4), the container is positioned with a generally rectangular bottom wall (3 A) thereof on an inclined surface (7) of the waste collection station, thereby tilting the container and its bottom wall, and releasably securing the container in the tilted position. A waste collection facility (13) of the waste collection station (4) is also provided.

Abstract: In a method of controlling operation of a pneumatic conveying system (1) including a source (6) for generating transport air flow in an active state, transport piping (4) and multiple material inlet points in at least one branch (B1, B2, B3, B4) of the transport piping and communicating with the system through discharge valves (3) controlling emptying of associated material inlet points, material transport conditions of the system are sensed for each inlet point emptying operation, the material transport conditions are sensed at one or more remote locations from the material inlet points and a valve open time for the material inlet point discharge valves is determining for each emptying operation and based on a processing of feedback from material transport condition sensors (11, 12) of the system. A pneumatic conveying system as well as a system (16) for controlling operation of the pneumatic conveying system are also provided.

Abstract: In a method of controlling operation of a pneumatic conveying system (1) including a source (6) for generating transport air flow in an active state, transport piping (4) and multiple material inlet points in at least one branch (B1, B2, B3, B4) of the transport piping and communicating with the system through discharge valves (3) controlling emptying of associated material inlet points, material transport conditions of the system are sensed for each inlet point emptying operation, the material transport conditions are sensed at one or more remote locations from the material inlet points and a valve open time for the material inlet point discharge valves is determining for each emptying operation and based on a processing of feedback from material transport condition sensors (11, 12) of the system. A pneumatic conveying system as well as a system (16) for controlling operation of the pneumatic conveying system are also provided.

Abstract: Vacuum waste collection system is provided (1a) by successively selecting a number of branches in a sequence for emptying and transport of waste, wherein the intersection (1, 2, 3, 4) of each next branch in the sequence is at the same o shorter transport distance to a central waste collection point (6) compared to the intersection (1, 2, 3, 4) of the previous branch in the sequence, and collectively transporting accumulated waste from the selected branches towards the central waste collection point (6) by successively operating the air inlet valves (av1, av2, av3, av4, av5) of the corresponding branches.

Abstract: In a method for managing waste (W) deposited in disposal packages (6-F1, 6-F2, 6-F . . . 6-Fn) and introduced into a vacuum operated waste collection system (1) wherein waste is conveyed through transport piping (3), from waste inlets (2) to a waste collection container (5) for storing waste before removal and wherein the disposal packages carry readable information (7-F1, 7-F2, 7-F3 . . . 7-Fn), disposal packages containing one of multiple waste fractions (F1, F2, F . . .

Abstract: Vacuum waste collection system is provided (1a) by successively selecting a number of branches in a sequence for emptying and transport of waste, wherein the intersection (1, 2, 3, 4) of each next branch in the sequence is at the same o shorter transport distance to a central waste collection point (6) compared to the intersection (1, 2, 3, 4) of the previous branch in the sequence, and collectively transporting accumulated waste from the selected branches towards the central waste collection point (6) by successively operating the air inlet valves (av1, av2, av3, av4, av5) of the corresponding branches.

Abstract: Vacuum waste collection system is provided (1a) by successively selecting a number of branches in a sequence for emptying and transport of waste, wherein the intersection (1, 2, 3, 4) of each next branch in the sequence is at the same o shorter transport distance to a central waste collection point (6) compared to the intersection (1, 2, 3, 4) of the previous branch in the sequence, and collectively transporting accumulated waste from the selected branches towards the central waste collection point (6) by successively operating the air inlet valves (av1, av2, av3, av4, av5) of the corresponding branches.

Abstract: In a method for controlling the emptying cycle for a temporary storage space (5) at a deposit point (2, 3) of a pneumatic material collection and transport system where emptying of the storage space is performed by opening a discharge valve (10) provided downstream thereof, a storage space emptying state is detected during discharge valve open condition, the output from at least one storage space emptying state sensor (6, 7) is monitored and logged, the sensor output is evaluated, a discharge valve open time is computed based on monitored and evaluated sensor output and the discharge valve is closed when monitored and evaluated sensor output has indicated a storage space empty condition.

Abstract: A storage container (108) for temporarily storing deposited waste (W) in a vacuum operated waste collection and management system has at least one waste deposit inlet (110A-C), a waste outlet section (120) with a waste discharge opening for the discharge of waste therefrom and a spiral conveyor (111) extended in a first direction through the container, towards the outlet section for assisting discharge of waste from the container via subatmospheric pressure applied through the outlet section. In such a container the spiral conveyor with a screw flight (111A) thereof extends through the waste outlet section and the outlet section includes a waste discharge opening being directed at a considerable angle to a centre axis of the spiral conveyor. Such a storage container may be employed in both vacuum operated waste collection systems of a stationary type and to such systems of a mobile type.

Abstract: In a method for managing waste (W) deposited in disposal packages (6-F1, 6-F2, 6-F . . . 6-Fn) and introduced into a vacuum operated waste collection system (1) wherein waste is conveyed through transport piping (3), from waste inlets (2) to a waste collection container (5) for storing waste before removal and wherein the disposal packages carry readable information (7-F1, 7-F2, 7-F3 . . . 7-Fn), disposal packages containing one of multiple waste fractions (F1, F2, F . . .

Abstract: Waste material that is introduced into waste inlet units (10) is managed by connecting the inlet units to a temporary storage volume (3) for charging the storage volume with the waste and by controlled, intermittent opening of the storage volume for the removal of accumulated waste therefrom. Specifically, waste is introduced into each inlet unit during an inlet charging phase; shaft charging vacuum (CV) is applied to the storage volume and is maintained continuously therein except when waste is removed from the storage volume; and the charging vacuum and atmospheric air (AA) is intermittently communicated to the inlet unit to charge the storage volume with the introduced waste.

Abstract: Waste material that is introduced into waste inlet units (10) is managed by connecting the inlet units to a temporary storage volume (3) for charging the storage volume with the waste and by controlled, intermittent opening of the storage volume for the removal of accumulated waste therefrom. Specifically, waste is introduced into each inlet unit during an inlet charging phase; shaft charging vacuum (CV) is applied to the storage volume and is maintained continuously therein except when waste is removed from the storage volume; and the charging vacuum and atmospheric air (AA) is intermittently communicated to the inlet unit to charge the storage volume with the introduced waste.

Abstract: In a waste collection system where deposited waste is transported by partial vacuum in transport pipes (2) leading from spaced collection points to a central collection station (4) containing a system vacuum source (5) including at least one vacuum-producing machine (6), thermal energy is extracted from a vacuum-producing machine exhaust air stream (EAS), is transferred to a fluid medium and is used for heating or cooling purposes in a specific residential area where the deposited and transported waste is generated.