4.2 Grey water / waste water reuse & compost

Figure 4-15. Euryops pectinatus ("Euryops pectinatus 'Viridis'" , 2021)

4.2 Grey water / waste water reuse & compost

In view of the religion, tradition and health problems in this area, grey water, waste water and human excreta will be treated separately.

A simple tank for collecting grey water is placed under the sink. Considering that the water consumption is small and the pipeline of irrigation systems needs more budget, women can use these grey water to irrigate crops and trees with traditional watering cans.

Figure 4-16. Greywater tank

After being filtered, the collected toilet waste water will be transported to the nearby bushes by pipelines buried in the shallow surface of the land, instead of being used for food irrigation.

Figure 4-17. Irrigation system for shrub

To help water more effectively, small earth walls were built around each garden bed. This technology helps keep water close to plants and creates a truly organized garden bed (Belida & Belida, 2015).

Figure 4-18. garden bed

Collected human waste is transferred to a compost bin, where it is mixed with other compostable materials such as grass, leaves, and vegetable leaves for fertilization of trees and shrubs (trees and shrubs only). In addition, a separate compost was designed, adding only fruit peels, discarded vegetable leaves and discarded parts of crops. These organic natural compost will be used as fertilizer for crops.