there is a system which design emphasizes the use of local materials and requires minimal electricity, as it is dependent on the natural forces of gravity for treatment. These systems were alsodesigned to be scalable, allowing for their implementation in single-family homes or entire neighborhoods. The system consists of a series of modular units filled with gravel. The number of these containers depends on both the quality and quantity of the raw greywater at each location, determined by pre installation tests and surveys.
The gravel acts as a filter and a medium for bacteria to grow. The bacteria, via aerobic and anaerobic processes, break down and feed on the chemical and organic components in the water. As the water moves from one container to the next, the quality of the water improves. Pretreatment and post treatment can be added to the system if needed, such as settlement ponds or the use of chlorine to remove any additional pathogens.
Decentralized Greywater Treatment and Reuse for Rural Communities: http://arava.org/arava-research-centers/center-for-transboundary-water-management/decentralized-wastewater-treatment-and-reuse-for-rural-com
Water has always been the most necessary resource for life on earth and therefore human development. these basic types of irrigation are still used in many parts of the world. Early civilizations also used channeled water as a leveling device for construction. This principle is still used by most builders today; by using a transparent pipe filled with water to compare levels. large blocks of land in rural areas allow more scope for on-site disposal of wastewater. Wastewater irrigated fields generate great employment opportunity for female and male agricultural laborers to cultivate crops, vegetables, flowers, fodders that can be sold in nearby markets or for use by their livestock& also Agroforestry, Aquaculture.
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