View source for (Semi-) Centralized Treatment System

[[Image:SemiCentralizedTreatmentSystem.png | 800px ]]


This is a water-based sewer system in which Blackwater is transported to a centralized treatment facility. The important characteristic of this system is that there is no Collection and Storage/Treatment.

The inputs to the system include Faeces, Urine, Flush - water, Anal Cleansing Water, Dry Cleansing Materials, Stormwater, and Greywater.

There are two User Interface Technologies that can be used for this system, a [[Pour Flush Toilet]] or a [[Cistern Flush Toilet]]. Dry Cleansing Materials can be handled by the system or they can be collected separately and directly transferred for [[Surface Disposal]].

The Blackwater generated at the User Interface is directly connected to a (Semi-) Centralized Treatment facility by a [[Simplified Sewers|Simplified Sewer network]] or a [[Conventional Gravity Sewer|Gravity Sewer network]]. Greywater is co-treated with the Black water. Stormwater collected within the Storm - water drains can be input to the Gravity Sewer network, al though Stormwater overflows are required.

As there is no Collection and Storage/Treatment, all of the Blackwater is transported to a (Semi-) Centralized Treatment facility. The inclusion of Greywater in the Conveyance Technology helps to prevent solids from accumulating in the sewers. One of the Technologies T1 to T10 is required for the treatment of the transported Blackwater. The Faecal Sludge generated from the treatment of the Technologies T1 to T10 must be further treated in a dedicated Faecal Sludge treatment facility (Technologies T11 to T15) prior to Use and/ or Disposal.

All (Semi-) Centralized Treatment Technologies, produce both Effluent and Faecal Sludge. Technologies for the Use and/or Disposal of the treated Effluent include [[Irrigation]], [[Aquaculture Ponds|Aquaculture]], [[Floating Plant (Macrophyte) Pond|Macrophyte Pond]] or Discharge to a water body or [[Water Disposal - Groundwater Recharge|Recharge to groundwater]]. Technologies for the Use and/or Disposal of the treated Faecal Sludge include [[Land Application of Sludge|Land Application]] or [[Surface Disposal]].