Technology

[Anonymous].  Submitted.  Nepal: Report on harnessing solar power for MUS systems in six remote hillside villages.

This project brought together iDE-N's experience in MUS, irrigation, water management and appropriate sustainable business models with Renewable World’s experience in renewable energy and business models for income generation in extremely isolated communities.

Solar-powered water pumps, as a reliable system of lifting water, are critical to the success of this project. The traditional gravity-fed MUS, as previously implemented by iDE-N in Nepal, are designed to give priority for drinking water, with overflow water from the drinking water tank being used for agriculture and other uses. Householders are trained to use micro-irrigation systems to make efficient use of the MUS water for their agricultural needs. Micro-irrigation is a financial boon to households as it results in higher crop yields, longer growing seasons (as crops can be grown in the dry season), and better market prices (as these crops tend to be more scarce at that time of year). Increased income means that households can cover the costs of ongoing operation, maintenance, and replacement costs of multiple-use systems. Because they better meet the water needs of communities, multiple-use services also decrease conflict related to water access as well as damage to infrastructure caused by “illegal” or unplanned uses.

[Anonymous].  Submitted.  WASHTech TAF for MUS.

Presentation by Vinny Casey from WaterAid on using the technology applicability framework (TAF) in adapted form for MUS.

The case study Manual well drilling: an alternative for shallow groundwater development for multiple use services (MUS) looks into the features of manual well drilling in Ethiopia and the costs and benefits. Manual drilling is a fast and relatively low-cost method of accessing shallow groundwater for multiple uses.

There is a large variation in cost between the enterprise or organisations involved, and diameter. Manual drilling is normally cheaper than hand digging. Reasons are due to time taken and the lower cost of lining.

Initially, promotion and distribution of manually drilled wells was set up for irrigation, but in practice people use these wells for various purposes, as they are convenient. The smaller diameter well and its covering slab prevent inflow from dirty surface water.

The case study is part of the MUStRAIN case study series in which the uptake of Multiple Use Services (MUS) in different contexts within Ethiopia is being documented. The case studies analyse cost-benefit relations as well as opportunities and challenges for implementation of MUS.

[Anonymous].  Submitted.  Ethiopia: Manual well drilling.
[Anonymous].  Submitted.  Ethiopia: Faecal sludge reuse interventions: the Arborloo and Fossa Alterna.

This case study focuses on the less documented faecal sludge reuse interventions in Ethiopia: Arborloo and Fossa Alterna, as implemented in East Arsi and Eastern Hararghe, in the Central Rift Valley, and in Arba Minch.

The case study is part of the MUStRAIN case study series in which the uptake of Multiple Use Services (MUS) in different contexts within Ethiopia is being documented. The case studies analyse cost-benefit relations as well as opportunities and challenges for implementation of MUS.

[Anonymous].  Submitted.  Nepal: rainwater harvesting lessons learnt in relation to multiple-use.

This research report, by BNP, seeks to assess the possibilities and limitations of using RWH for drinking water, biogas and irrigation and identity the possibilities and limitations of combining these different uses. Specifically, it seeks to:

  • Assess the water use practices and water needs with respect to different purposes in rural households presently challenged with water scarcity to identify the need for rainwater harvesting for MUS
  • Identify the effectiveness of combining roof water harvesting systems with surface runoff systems for MUS
  • Analyse financial and economic aspects and impacts of MUS from rainwater harvesting systems
  • Test the combination of Ferro-cement tanks with “1 bag cement” systems and plastic ponds

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