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4.4.3. Choice of Technology
Variations on the technology include:
- Dry compost toilets with graywater irrigation
- Soil filter with integrated recycling system attached
- Decentralized biodigesters in the community, with effluent pipes leading to one or several wastewater recycling facilities
- Separated sewage collection system leading to centralize biodigester with wastewater recycling system
- System without biodigester, including sand trap at inlet, oxygenation basins, macrophyte tanks, fish tanks, garden areas
- Conventional stabilization ponds (if already present), with recycling system attached
- Fully integrated variant; the previous system plus fish, poultry, meat-producing animals, and biogas reactor.
Choosing technology is only possible after a site and community assessment with a wastewater recycling expert. Factors include:
- technical capability and interest in community
- available site security
- type of agriculture and aquaculture in the area
- feasibility of farm animals (noise, odor etc.)
- site slope & groundwater level
- sewage dilution rate
- population density, density of structures
See Workplan for the sequence required to choose technology for a site.
4.4.4. Procedure for Determining Property Dimensions
Avoid committing land until these questions are settled:
* A general location is available and suitable for a facility.
* Water, soil and technology questions are answered.
* Dimensioning occurs with wastewater recycling consultant.
* Final negotiations commence on the size of property required.
* Legal processes are finalized.
After that, construction planning starts.
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