Water in the MEDA region is a crucial issue, with regard to the availability of ren- able water resources in the MEDA countries most will face even more serious pr- lems in the management of their limited water resources in the near future. This will require a lot of efforts to be made for more efficient management of water, in order to secure the economic and social development of the coming generations. According to the FAO (2006) the average of renewable water resources in the MENA region is below the limit of 1000 CM per Capita and Year, for Egypt for example is this 794 CM, for Algeria und Tunisia 481 CM, for Jordan 180, Yemen 234, and Palestine 100 which are far below the limit of 500 CM that classify these countries as the most water stressed countries worldwide. The alarming aspect is the fact that the limited renewable available water resources development have been decreasing in the last thirty years, between 1974 2000 we had 66% decrease for Jordan and 64 % for Yemen, due to the increasing population growth and the increase of water demands for agriculture, industrial and domestic use. These figures underline the importance of the topics of this book that shall give help to experts and decision makers to over come the future water resources problems in the region.

The 2006 WHO Guidelines for Wastewater and Greywater Use in Agriculture: A Practical Interpretation.- EMWater Guide and Recommendations on Wastewater Treatment and Water Reuse.- Integrated Wastewater Management: A Review.- Egyptian Effluent Standards for Treated Sewage: Evaluation and Recommendations.- Groundwater Contamination as Affected by Long-Term Sewage Irrigation in Egypt.- Effluent and Sludge Management in Yemen.- Fate of Pathogens In Tomato Plants and Soil Irrigated With Secondary Treated Wastewater.- Alleviation of Salinity Stress Imposed on Broad Bean (Vicia faba) Plants Irrigated With Reclaimed Wastewater Mixed With Brackish Water Through Exogenous Application of Jasmonic Acid.- Response of Durum Wheat (Triticum durum Desf) Cultivar Acsad 1107 to Sewage Sludge Amendment Under a Semi-Arid Climate.- Waste Stabilization Ponds: A Highly Appropriate Wastewater Treatment Technology for Mediterranean Countries.- Sustainable Sanitation by Constructed Wetlands in the Mediterranean Countries: Experiences in Small/Medium-Size Communities and Tourism Facilities.- Effect of Depth on the Performance of Algae-Based Wastewater Treatment Ponds.- Adapting High-rate Anaerobic Treatment to Middle East Conditions.- Options for Improving the Effectiveness and Potentials for a Sustainable Resource Recovery in Constructed Wetlands.- Integrated AnaerobicAerobic Treatment of Concentrated Sewage.- Aerobic and Anaerobic Biotreatment of Olive Oil Mill Wastewater in Lebanon.- Cost-Efficiency in Water Management Through Demand Side Management and Integrated Planning.- The LooLoop-Process: The First Waterless Flushing Toilet.- Contribution of Sewage Sludge to the Fertility of the Soil and the Growth of Barley (Hordium Vulgare L) Variety Jaidor.- The Use of a Pilot-Scale MembraneBioreactor in Treating Domestic Wastewater with Variable Characteristics for Potential Water Reuse on a University Campus.- Socioeconomic Aspects of Wastewater Treatment and Water Reuse.- CostBenefit Analysis for Centralized and Decentralized Wastewater Treatment System (Case Study in Surabaya-Indonesia).- Sustainable Community Water Project Implementation in Jordan.- Waste Water Reuse for Agriculture Pilot Project at the Jordan University of Science and Technology.