Wastewater treatment system

A treatment system for treatment of wastewater, comprising:

• at least two basins, each of the at least two basins alternating between a state of being a source basin and a state of being a recipient basin;
• and
• a pumping system;
• wherein, for each pair of the source basin and the recipient basin, the treatment system is configured for executing a predetermined regime of reciprocating flow of wastewater between the at least two basins including:
• (I) causing wastewater to flow from the source basin to the recipient basin by:
• (a) allowing a gravitational flow of wastewater through a conduit from the source basin to the recipient basin under the influence of gravity when a water level in the source basin is above a water level of the recipient basin;
• and
• (b) selectively operating the pumping system to pump wastewater from the source basin to the recipient basin to provide a water level in the recipient basin that is above a water level of the source basin;
• and
• (II) selectively converting the source basin and the recipient basin to a recipient basin and a source basin, respectively, and selectively repeating (I).

A method for operating a system for treatment of wastewater having at least two basins, each of the at least two basins alternating between a state of being a source basin and a state of being a recipient basin, the method comprising, for each pair of the source basin and the recipient basin, executing a predetermined regime of reciprocating flow of wastewater between the at least two basins, comprising:

• (I) causing wastewater to flow from the source basin to the recipient basin by:
• (a) allowing a gravitational flow of wastewater through a conduit from the source basin to the recipient basin under the influence of gravity when a water level in the source basin is above a water level of the recipient basin;
• and
• (b) selectively operating a pumping system to pump wastewater from the source basin to the recipient basin to provide a water level in the recipient basin that is above a water level of the source basin;
• and
• (II) following step (I), selectively converting the source basin and the recipient basin to a recipient basin and a source basin, respectively, and selectively repeating step (I).

A pumping system for use in a treatment system for wastewater treatment, the treatment system having at least two basins each of which alternates between a state of being a source basin and a state of being a recipient basin and a pumping chamber configured for conducting water between at least one pair of the at least two basins, the pumping system comprising:

• a receptacle tank configured for receiving wastewater to be treated, the receptacle tank being provided with a first outlet pipe and a second outlet pipe, the first outlet pipe and second outlet pipe being on the same level;
• a first pump configured to pump wastewater between the receptacle tank and a first basin of the at least two basins through the first outlet pipe and a second pump configured to pump wastewater between the receptacle tank and a second basin of the at least two basins through the second outlet pipe, the first pump and the second pump adapted to allow wastewater to flow under the influence of gravity between the first basin and the second basin when the first pump and the second pump are inactive;
• a processor configured to receive a signal from a water level detector indicative of a liquid level in the first basin and to receive a signal from a water level detector indicative of a liquid level in the second basin and to activate and deactivate the first pump and the second pump in order to execute a method of operating the system for treatment of wastewater, the method comprising, for each pair of the source basin and the recipient basin, executing a predetermined regime of reciprocating flow of wastewater between the two basins, comprising:
• (I) causing wastewater to flow from the source basin to the recipient basin by:
• (a) allowing a gravitational flow of wastewater through a conduit from the source basin to the recipient basin under the influence of gravity when a water level in the source basin is above a water level of the recipient basin;
• and
• (b) selectively operating a pumping system to pump wastewater from the source basin to the recipient basin to provide a water level in the recipient basin that is above a water level of the source basin;
• and
• (II) following step (I), selectively converting the source basin and the recipient basin to a recipient basin and a source basin, respectively, and selectively repeating step (I).