1 MINISTERE DES RESSOURCES EN EAU Italian Ministry for the Environment ALGERIE SINDBAD Système INtégr gré De gestion du BAssin pour la réutilisation r Des eaux usées pour l agriculturel (Integrated River Basin management for wastewater reuse in Agriculture) Fostering Sustainability in Arid and Water Scarce Zones Through Local Actions Presented at the World Water Forum-Mexico City, 20th March 2006 Rachid Taibi (ANRH) and Augusto Pretner (SGI)
2 Background Algeria is characterized by a semi-arid climate facing decreasing rain fall since the three last decades Shortage in water supply and irrigation
3 Rationale Increase of water consumption (demographic growth and economic development) Increased volume of untreated wastewater Agriculture water demand = 2700 million m3/year Wastewater produced = 750 Million m3/year Need to manage this resource to maximise productive activities (e.g. agriculture) and to minimise adverse health and environmental impacts Benefits: less energy consumption, less impacts on environment.
4 Algerian Needs Technical Developing integrated water / wastewater planning and models; Assessing the most suitable technologies for wastewater treatment and reuse; Knowledge Understanding health, environmental impacts and consequences of using wastewater in irrigated agriculture; Understanding economic and financial aspects of wastewater reuse; Designing programmes for capacity building, awareness raising and information dissemination; Legislation Advising on regulatory and institutional framework.
5 Algeria - UNESCO cooperation In the framework of the UNESCO-WPA Water Programme for Africa, a feasibility study for the use of non-conventional water resources has been agreed. The study is funded by the Italian Ministry of Environment through UNESCO and UNEP/GPA Within the cooperation framework UNESCO provides international experts in the concerned disciplines
6 Algeria - UNESCO cooperation ALGERIAN STAKEHOLDERS Ministry of Water Resources (MRE) Ministry of Agriculture and Rural Development (MADR) Ministry of Territory and Environment (MATE) Ministry of Health Municipalities Associations
Pilot projects REGHAIA CONSTANTINE Focus on two pilot sites that represent the complexity of the problem related to the management and use of wastewater in Algeria: - The area of the Lake Reghaia, near Algiers - The area of Constantine, at the east part. 7
8 Lake of Reghaia The lake is a Ramsar site
9 Water quality in the lake Advanced eutrophication is appearing Methane, evident anoxia phenomena Is the lake going to die? 400.000 population discharge is only a part of the causes. An integrated approach is needed
10 Justification Less than one third of urban/industrial wastewater is treated; No measures are taken for controlling nopoint pollution sources (farming, fertilizer, other contaminants) Untreated wastewater is reused for 700 ha of irrigated agriculture
The integrated approach 11 RAIN EVENT EU Water Framework Directive River Basin Management Plan SEWER NETWORK WWTP CSO INDUSTRIAL DISCARGE CSO PS NO POINT POLLUTION SEA POLLUTION DIRECT DISCHARGE INTO THE SEA
Wastewater reuse cycle in Reghaia 12
Feasibility Study objectives 13 Propose a viable solution for wastewater management and reuse in the pilot areas of Reghaia and Constantine; Promote the application of innovative management technologies; Enhance skills of Algerian stakeholders through capacity building Support dissemination of project results by establishing a multi-stakeholder platform Identify and design needed infrastructure Apply for national and international funding for the implementation of the structures identified
14 Stakeholders involvement National Team International Team Facilitating the process Reghaia Constantine Maghreb Africa Middle East
15 Technical activities Data gathering and organisation (Database) Field and water quality survey Construction and testing of an integrated water quality/quantity model Simulation of different treatment options Design of the integrated wastewater management system and wastewater reuse in agriculture
16 Combining tradition and modern technologies Traditional and modern water meter
17 Integrated modelling RAIN FALL RECEIVING WATER BODY FARMING FERTLIZER MEDITERRANEAN SEA SEWAGE NETWORK CENTRALISED PRE TREATMENT FOR INDUSTRIES WWTP IRRIGATION FOR AGRICULTURE
Integrated basin modelling example 18
Pollutant diffusion model example 19
20 Expected outputs Feasibility study on integrated river basin management for wastewater reuse in agriculture in Reghaia et Constantine. Project proposals, based on the results of the feasibility study, aimed at applying for funding the structural works; Training courses for Algerian stakeholders Dissemination of the results aimed at replicating the project
21 THANK YOU GRACIAS MERCI