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SINDBADSystSystèème INtme INtéégrgréé De gestion du BAssin pour la rDe gestion du BAssin pour la rééutilisation Des eaux usutilisation Des eaux uséées es

pour lpour l’’agricultureagriculture(Integrated River Basin management for wastewater reuse in Agric(Integrated River Basin management for wastewater reuse in Agriculture)ulture)

Fostering Sustainability in Arid and Water Scarce ZonesThrough Local Actions

Presented at the World Water Forum-Mexico City, 20th March 2006 Rachid Taibi (ANRH) and Augusto Pretner (SGI)

Italian Ministry for the Environment

MINISTERE DES MINISTERE DES RESSOURCES EN EAURESSOURCES EN EAU

ALGERIEALGERIE

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BackgroundBackground

• Algeria is characterized by a semi-arid climate facing decreasing rain fall since the three last decades

• Shortage in water supply and irrigation

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RationaleRationale

• 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.

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Algerian NeedsAlgerian NeedsTechnical • 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.

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Algeria - UNESCO cooperationAlgeria - 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

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Algeria - UNESCO cooperationAlgeria - 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

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Pilot projectsPilot 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.

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Lake of ReghaiaLake of Reghaia

The lake is a Ramsar site

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Water quality in the lakeWater 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

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JustificationJustification

• Less than one third of urban/industrial wastewater is treated;

• No measures are taken for controlling no-point pollution sources (farming, fertilizer, other contaminants)

• Untreated wastewater is reused for 700 ha of irrigated agriculture

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The The integratedintegrated approachapproach

CSO INDUSTRIAL DISCARGE

WWTPSEWER NETWORK

RAIN EVENT

DIRECT DISCHARGE INTO THE SEA

CSO

PS

NO POINT POLLUTION

SEA POLLUTION

EU Water Framework DirectiveRiver Basin Management Plan

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Wastewater reuse cycle in ReghaiaWastewater reuse cycle in Reghaia

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FeasibilityFeasibility StudyStudy objectivesobjectives

• 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

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Stakeholders involvementStakeholders involvement

Reghaia Constantine

National TeamInternational Team

Facilitatingthe process

Maghreb AfricaMiddle East

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Technical activitiesTechnical activitiesTechnical 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

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Combining tradition and modern technologiesCombining tradition and modern technologies

Traditional and modern water meter

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Integrated modelling

MEDITERRANEAN SEA

FARMING FERTLIZER

RECEIVINGWATER BODY

SEWAGE NETWORK

CENTRALISEDPRE TREATMENT FOR INDUSTRIES

IRRIGATION FOR AGRICULTURE

RAIN FALL

WWTP

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Integrated basin Integrated basin modellingmodelling exampleexample

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Pollutant diffusion model examplePollutant diffusion model example

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Expected outputsExpected outputs

• Feasibility study on integrated river basin integrated river basin management for wastewater reuse in management for wastewater reuse in agricultureagriculture 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

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• THANK YOU

• GRACIAS

• MERCI