Environmentally sustainable systems and methods of toilet flushing and blackwater disposal

An environmentally sustainable system for toilet flushing and blackwater disposal comprises:

• (a) a toilet bowl configured to collect a blackwater, comprising an essentially semi-spherical shell shape, said toilet bowl comprising a bowl outlet, at a bottom portion of said essentially semi-spherical shell shape, configured to conduct a flow of said blackwater therethrough;
• (b) a bowl valve disposed adjacently to said bowl outlet, wherein said bowl valve comprising a movable sealing element, essentially matching said bowl outlet, configured upon movement of said sealing element for reversibly assuming:
• (I) a bowl outlet sealing configuration, wherein said sealing element is engaged vis-à-vis said bowl outlet, thereby sealing said bowl outlet and obstructing said flow blackwater therethrough;
• (II) an open configuration, wherein said sealing element is disposed offset said bowl outlet, thereby unsealing said bowl outlet and forming a conduit for flow of said blackwater therethrough;
• (c) a pumping mechanism, operationally coupled downstream to said bowl valve, configured for controllably forming, in turn, a negative pressure downstream to said bowl valve and a positive pressure downstream to said bowl valve, thereby pumping said blackwater received from said bowl valve;
• (d) a check valve, operationally coupled downstream to said pumping mechanism, configured to conduct a flow of said blackwater in a downstream direction relative to said check valve and to obstruct a flow of said blackwater in an upstream direction relative thereto;
• (e) a driving shaft operationally connected to an actuator configured to exert a rotational torque onto said driving shaft;
• (f) a gearing mechanism operationally connecting in a predefined gearing ratio of operation:
• (I) said pumping mechanism, with
• (II) said bowl valve, with
• (III) said driving shaft;
• (g) for each single operational cycle of said system, comprising a first phase and a second phase, said predefined gearing ratio of operation comprising:
• (I) said pumping mechanism performing a single operational cycle, wherein each said single operational cycle of said pumping mechanism comprises, in turn, a first phase of forming said positive pressure downstream to said bowl valve, and a second phase of forming said negative pressure downstream to said bowl valve;
• (II) said bowl valve performing a single operational cycle, wherein each single operational cycle of said bowl valve comprises, in turn, a first phase of sealing said bowl outlet and obstructing flow of said blackwater therethrough, and a second phase of unsealing said bowl outlet and conduiting a flow of said blackwater therethrough;
• (III) said driving shaft performing a single operational cycle, wherein each said single operational cycle of said driving shaft comprises, in turn, a first phase of a partial revolution about a longitudinal centerline in a predefined direction, and a second phase of a partial revolution about said longitudinal centerline in a cornerwise direction to said predefined direction.