The document describes a decentralized wastewater treatment and reuse project in Arid Regions. The project involved: 1. Setting up a pilot plant for wastewater treatment and reuse in Aqaba, Jordan including cleaning and preparing the site, installing collection tanks, channels, media mix, pumps and piping. 2. Running the wastewater treatment and reuse system for one year, which included a hydroponic greenhouse for growing various vegetables and flowers using treated wastewater. 3. Monitoring various research variables such as treatment efficiency, costs, different system configurations, irrigation methods, and nutrient uptake by plants. The overall goal was to evaluate regionally adequate decentralized wastewater treatment technologies

1. HELMHOLTZ ASSOCIATION
Dead Sea Project
Decentralized Wastewater Treatment and Reuse in
Arid Regions
Part 1: Regionally adequate
decentralised treatment technologies
By:
Marwan Haddad And Numan Mizyed
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Aqaba-Jordan An-Najah NAtional
University-Palestine

2. First Year Program
1. Site Preparation and WWTRT/Reuse Plant Design
2. Construction of the WWTRT/Reuse System
3. Running the WWTRT/Reuse System Including Lab
Analysis
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Aqaba-Jordan An-Najah National
University-Palestine
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3. Site Preparation/Plant Design/Installation
• Cleaning
• Finishing/Leveling
• Sand Spreading
• Greenhouse setup
• Collection tank installation
• Channels, barrels, media mix
• Pumps and piping
• Electric board/control panel

4. Pilot Plant Location

10. Pilot Treatment and Reuse System

12. - Hydroponics comes from a Latin word which
literally means “Working Water”. It’s the growing
of plants without soil.
- Hydroponics is the cultivation of plants in a
nutrient solution rather than soil.
Hydroponics: A Basic Understanding

13. Hydroponic is not a new Idea/Technology
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Aqaba-Jordan An-Najah NAtional
University-Palestine
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•Ancient China,
Egypt and India
•Hanging Gardens of
Babylon (660 B.C.)
•Leonardo da Vinci
(1492)
•Aztec Chinampas
(1500’s)

14. - Hydroponics comes from a Latin word which
literally means “Working Water”. It’s the growing
of plants without soil.
- Hydroponics is the cultivation of plants in a
nutrient solution rather than soil.
Hydroponics: A Basic Understanding

15. Hydroponic System: General Facts
almost any hydroponic system will
produce acceptable growth
any plant can be grown in a
hydroponics system

16. Hydroponics: The Pros and Cons
• Advantages (Pros)
– Saves space & water
– Fewer weeds, diseases & parasites
– Grow plants anywhere (space?)
• Disadvantages (Cons)
– High set up cost
– High maintenance (labor)
– More complicated
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Aqaba-Jordan An-Najah NAtional
University-Palestine
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23. Media
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Aqaba-Jordan An-Najah NAtional
University-Palestine
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2 Parts Gravel + 1 Part Wood Saw Dust + 1 Part Agr. Sand

24. Media
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Aqaba-Jordan An-Najah NAtional
University-Palestine
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2 Parts Gravel + 1 Part Wood Saw Dust + 1 Part Agr. Sand

25. Flow Regime and Treatment Capacity
• Vertical flow (100 l/pot-day or 1.5 m3/day)
• Horizontal flow (3 – 4.2 m3/day or
0.5-0.7 l/min or
4.3-6 m3/day)
Total treatment capacity = 5.8-7.5 m3/day

26. Irrigation System
• Flood and drain
• Continuous dripping
• Root spraying

27. Crops in Reuse System
• Cropping started by the start of the second week of June,
2008
• Seedling were bought and brought from a local nursery
• Vegetables: Winter squash, Green Beans, corn, eggplants,
and Cherry tomatoes
• Various cut flowersTagetes erecta , Asarina
procumbens, Alonsoa warscewiczii, Calendula officinalis
Gitano Mix, Arctotis ×hybrida + + +

30. Winter Squash

31. Research Variables
• Treatment efficiency
• Treatment cost and feasibility
• Pot and channel system
• Testing water-based systems; and media systems
• Open – active and closed Systems - passive (w or w/o
recirculation)
• Testing of flood/draining, continuous dripping, and root
spraying irrigation systems
• Reuse of flowers and vegetables : growth and nutrient
and salts uptake

32. Thank you: Any ?????????????????
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Aqaba-Jordan An-Najah NAtional
University-Palestine
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