Wastewater reuse in the Mediterranean region: Case of Morocco Hirich - - PowerPoint PPT Presentation

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Wastewater reuse in the Mediterranean region: Case of Morocco Hirich - - PowerPoint PPT Presentation

Feb 28, 2024 34 likes •198 views

World Wide Workshop for Young Environmental Scientists Wastewater reuse in the Mediterranean region: Case of Morocco Hirich Abdelaziz, Agronomic and Veterinary Medicine Hassan II Institute, Morocco 0307 June, 2013 Paris, France 1/13

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World Wide Workshop for Young Environmental Scientists

Hirich Abdelaziz, Agronomic and Veterinary Medicine Hassan II Institute,

Morocco

03–07 June, 2013 Paris, France

Wastewater reuse in the Mediterranean region: Case of Morocco

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Content

Water scarcity and potential of wastewater in the Mediterranean region Driving forces for using treated wastewater Wastewater treatment in Morocco Wastewater reuse in Morocco

Factors impeding the implementation of water reuse strategies in Med region

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Water scarcity and potential of wastewater in the Mediterranean region

Source: FAO, AQUASTAT, 2008.

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1971 1982 1994 2000 2010 2020 1272 1272 (m3/capita.yr) 980 980 757 757 688 688 595 595 508 508

Water resources availability in Morocco

Water scarcity and potential of wastewater in the Mediterranean region

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Water scarcity and potential of wastewater in the Mediterranean region

Country Wastewater Produced 106m3/yr % of Wastewater Treated/ Wastewater Produced % of Wastewater reused/ Wastewater Produced Year of WWR Algeria 820.0 85.4 3.2 2011 Cyprus 30.0 100.0 83.3 2008 Egypt 4930.0 60.3 60.3 2001 France 7910.0 91.0 5.2 2004 Greece 719.0 62.6 1.0 2008 Israel 450.0 62.9 62.2 2008 Italy 7731.0 31.0 3.5 2008 Jordan 82.0 90.2 85.4 2010 Lebanon 249.0 1.6 0.8 1991 Libya 546.0 20.1 7.3 1999 Malta 19.0 79.3 50.0 2008 Monaco 7.3 82.5 0.0 2009 Morocco 700.0 25.3 11.4 2007 Palestine 50.0 53.8 20.0 2004 Slovenia 168.5 68.4 4.1 2009 Spain 5204.4 86.8 10.1 2008 Syria 825.0 66.7 66.7 2002 Tunisia 240.0 89.6 14.1 2001 Turkey 4289.0 57.9 23.3 2006 Total 34970.2 63.9 18.1 Source: Guardiola et al. 2011, WWR: wastewater reuse.

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47.000 m3 /Day 2000 78.000 m3 /Day 2020

At national level At regional level Agadir city

Wastewater production in Morocco

Water scarcity and potential of wastewater in the Mediterranean region

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Reduce pressure on naturel resources/ecosystems (quality and quantity) Cope with water demand (commmunities and ecosystem) Sustainable water supply Contribute to integrated water management

Driving Forces for Using Treated Wastewater

Not affected by climate change

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Why treated urban wastewater?

Compared to desalination, it is a cost-effective and energy saving to increase water supply and mitigate the impact of climate variability and climate change Reuse of treated wastewater means making a productive asset

  • ut of a waste production from which it is possible to recover

heat, energy, nutrients and clean water (aqua environment) Different reuse opprtunities with social, economic and environmental values

Driving Forces for Using Treated Wastewater

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Wastewater treatment in Morocco Primary clarifier Primary clarifier Anaerobic Lagoons: Primary treatment Anaerobic Lagoons: Biogas production Aerobic Lagoons: Sheafer system, Secondary treatment Aerobic Lagoons: Sand filter UV Disinfection System: tertiary treatment

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Wastewater Reuse in Morocco

  • Agricultural irrigation
  • Golf course irrigation
  • Landscape irrigation in urban areas
  • Ground water recharge
  • Forest irrigation
  • Creation of wetlands
  • Industrial cooling system

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Factors Impeding the Implementation of Water Reuse Strategies in Med Region

Location, topography and space Transportation of WW from treatment plants to the point

  • f use

Maintenance Externalities:

  • Potential groundwater

pollution;

  • Increase of soil salinity if

used for irrigation;

  • Potential unknown ill

effects if used for potable uses. Pricing No clear guideline on allocating recycled water to different sectors Social awareness and acceptability

1 2 3 4 7 6 5

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Irrigation with treated wastewater Tranformation

If you already know that! will you consume that bread ?

Question ?

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Thanks for your attention!

Questions !

hirich_aziz@yahoo.fr

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Wastewater treatment in Marrakech

Treatment yield: DBO5 > 95 % MES > 95 % Energy generating : 30 000 KWHe/day 30 000 KWHe/day

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Raw wastewaetr Primary treatment Secondary treatment Standards Yield Suspended matter 700 380 14 50 98% BOD5 800 360 17 100 98% COD 1600 700 46 500 97% Fecal coliforms 3,7E + 07 4,3E + 06 80 (x) 1.000 7,0 ULog

X after treatment with UV

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Treatments Chrysanthemum Zucchini Egg plant Maize Bread wheat Durum wheat Flower/plant Kg/plant Kg/m² Qx/ha Qx/ha Qx/ha Control* 69 1.29 3.17 12.43 5.107 Treated wastewater 80 2.18 3.41 12.62 48.69 31.83

Response of several crops to irrigation using treated wastewater Crops Net gain of water (DH/year.inhab)* Benefit in fertilizers (DH/year.inhab)** Total Benefit (DH/year.inhab) Tender wheat 750 1492 2242 Unground corn 1588 3614 5202 Fodder corn 1568 3572 5140 Clover (Berseem) 774 1539 2313 Zucchini 677 1545 2222 Marrow 611 1216 1827 Tomato 1553 3542 5095 Potato 940 2140 3080 Economic gain from treated wastewaters irrigation