US 2003/0155311 A1 · Wastewater treatment system for residential septic systems

Abstract

A liquid chlorine supply canister is connected by a chlorine supply tube and venturi chamber to a recirculating pipe that discharges into a storage-mixing tank into which sewage effluent is received from a source. The chlorine solution supply tube within the canister is provided with a filter/orifice assembly having an orifice dimension that is designed for the size of the wastewater treatment system. A pump within the storage-mixing tank causes circulation of sewage effluent through the venturi chamber and develops a suction in the chlorine solution supply tube which draws chlorine through the filter and orifice assembly, through the supply tubing and into the flowing sewage effluent stream to the storage-mixing tank as well as to a spray field. A recirculation pipe from the venturi chamber into the mixing tank, causes turbulence of sewage effluent and dissolved chlorine (either solution or gaseous) within the storage-mixing tank for efficient mixing of the chlorine component with the liquid and/or solid constituents of the sewage effluent. A bi-directional re-circulating crossover tubing is connected with the pump discharge pipe and the recirculation pipe and enhances the induction of chlorine (disinfected) effluent into an effluent discharge pipe leading to a spray field.

Claims19

Dependent claims

A method for treating residential sewage effluent, comprising:

receiving within a mixing/storage tank sewage effluent from a source;
pumping sewage effluent from the mixing/storage tank through a recirculation pipe receiving the sewage effluent discharge of the pump and having a discharge opening within the mixing/storage tank;
pumping sewage effluent through a venturi chamber in communication with the recirculation pipe and developing a suction drawing chlorine from the chlorine supply canister into the venturi chamber and into the recirculation pipe;
discharging sewage and chlorine from the recirculation pipe into the mixing/storage tank at a velocity creating turbulence and sewage effluent and chlorine mixing within the mixing/storage tank;
and
selectively causing flow of mixed sewage effluent and chlorine from the recirculation pipe to an effluent discharge pipe in connection with the recirculation pipe by opening a normally closed valve of the effluent discharge pipe and permitting pump induced flow of mixed sewage effluent and chlorine to a treated sewage effluent disposal system.

3 more elements

A wastewater treatment system for residential septic systems, comprising:

a storage-mixing tank having an inlet receiving sewage from a source;
a pump located within said storage-mixing tank and having a pump inlet opening into said storage-mixing tank and having a pump discharge;
a pump discharge pipe being connected with said pump discharge;
a recirculation pipe being connected with said pump discharge pipe and having a terminal end located within said storage-mixing tank and defining a recirculation discharge opening;
a chlorine supply canister;
a venturi chamber being connected to said recirculation pipe and having a chlorine supply tube having an inlet located within said chlorine supply canister and drawing chlorine from said chlorine supply canister into said venturi chamber and said recirculation pipe responsive to sewage effluent flow within said recirculation pipe and creating turbulent discharge of sewage effluent and chlorine into said storage-mixing tank;
an effluent discharge pipe being connected with said recirculation pipe;
a treated sewage effluent disposal system being connected with said effluent discharge pipe and handling treated sewage effluent for disposal;
and
an electrically operated controller sequenced valve being connected in said effluent discharge pipe and being selectively opened for pump pressure induced discharge of chlorine treated sewage effluent by said treated sewage effluent disposal system.

7 more elements

Dependencies are inferred from the claim text.

Wastewater treatment system for residential septic systems

Life of this patent

Wastewater treatment system for residential septic systems

Life of this patent

Abstract

Claims19