The efficient management of water supply becomes even more important in arid areas where supply is at best erratic. This book looks at a range of issues connected to urban and agricultural water use in the Sana'a Plain area, including engineering and logisical problems, environmental and climatic influences on groundwater, legal and political wrangles, economic considerations and options for waste water re-use.

Duckweed (L.gibba)-covered sewage lagoons (DSLs) are low cost treatment systems, especially suitable for warm climates, or in lands where there are warm seasons. This study attempts to assess DSL system as a new technology, contributing to the understanding of the different mechanisms in the system. Duckweed-covered sewage lagoons could either replace complete wastewater stabilization ponds (WSPs) or be introduced as a second stage in an integrated WSP-DSL treatment system, which could then be used for purifying municipal wastewater, achieving suitable effluent for reuse in agriculture. The duckweed harvested from DSL systems has, in itself, an intrinsic economic value.

In the countries of the Middle East and Northern Africa, reclaimed wastewater is recognized as a non-conventional water resource. However, substandial amounts are still discharged into water courses without further treatment. The objective of this research was to analyse the technological, regulatory, institutional, financial and

The efficient management of water supply becomes even more important in arid areas where supply is at best erratic. This book looks at a range of issues connected to urban and agricultural water use in the Sana'a Plain area, including engineering and logisical problems, environmental and climatic influences on groundwater, legal and political wrangles, economic considerations and options for waste water re-use.

The need for an integrated management of water resources has derived from the emerging understanding that the water crisis cannot solely be regarded as a hydrological crisis. Instead, it is frequently defined as a crisis of governance, as institutional and management scarcity are hindering a sustainable, equitable and efficient use of water resources. Integrated Water Resources Management (IWRM) is internationally accepted as a toolbox to achieve these objectives. However, implementation of the IWRM-approach is still lacking, especially in developing countries and transitional economies. This study poses the central question of what kind of governance is necessary to achieve an integrated management of water resources. Evaluating the concept from a regional perspective, three case studies have been conducted in Yemen, Jordan and Syria to identify the main governance challenges during the IWRM-process and develop strategies on how to meet them, aiming to improve the practical applicability of the theoretical framework of IWRM in the Middle East.

"While water professionals have been advocating comprehensive water reforms for years and many countries have improved their water policies and institutions, some of the most politically sensitive elements of reform remain untouched. This report suggests that a series of factors are now emerging that represent a potential opportunity to break this impasse." "Making the Most of Scarcity will be of interest to readers working in the areas of agribusiness and markets, agriculture, urban and rural development, water supply, and water resources, as well as to those responsible for setting policies in the areas of environment, economics, and social protection."--BOOK JACKET.

Christopher Ward provides a complete analysis of the water crisis in Yemen, including the institutional, environmental, technical and political economy components. He assesses the social and economic impacts of the crisis and provides in-depth case studies in the key management areas. The final part of the book offers an assessment of current strategy and looks at future ways in which the people of the country and their government can influence outcomes and make the transition to a sustainable water economy. The Water Crisis in Yemen offers a comprehensive, practical, and effective approach to achieving sustainable and equitable management of water for growth in a country whose water problems are amongst the most serious in the world.