decentralized wastewater treatment and reuse in arid regions 2003
TRANSCRIPT
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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University-Palestine
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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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
Pilot Plant Location
Pilot Treatment and Reuse System
- 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
Hydroponic is not a new Idea/Technology
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•Ancient China,
Egypt and India
•Hanging Gardens of
Babylon (660 B.C.)
•Leonardo da Vinci
(1492)
•Aztec Chinampas
(1500’s)
- 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
Hydroponic System: General Facts
almost any hydroponic system will produce acceptable growth
any plant can be grown in a hydroponics system
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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Media
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2 Parts Gravel + 1 Part Wood Saw Dust + 1 Part Agr. Sand
Media
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2 Parts Gravel + 1 Part Wood Saw Dust + 1 Part Agr. Sand
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
Irrigation System
• Flood and drain
• Continuous dripping
• Root spraying
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 + + +
Winter Squash
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
Thank you: Any ?????????????????
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