Hydroponic systems for wastewater resue (2)
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Transcript of Hydroponic systems for wastewater resue (2)
November 26-28 ,2010 Prof. Dr. Marwan Haddad 2
November 26-28 ,2010 Prof. Dr. Marwan Haddad 3
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November 26-28 ,2010 Prof. Dr. Marwan Haddad 10
Horizontal and Vertical Flow Hydroponic Systems Results
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November 26-28 ,2010 Prof. Dr. Marwan Haddad 12
Plants Tested
Horizontal Flow Hydroponic
System
Vertical Hydroponic System
EggplantsWinter Squash
Cherry tomatoesGreen Beans
Various Cut flowers:Gazenia, marigold , chlorophytum, ficus
benjamina, and ficus starlight
Sweet Corn
RosesRosemary
Oranges
Olives
November 26-28 ,2010 Prof. Dr. Marwan Haddad 13
Water quality summary
Ca
(mg/l)
Mg
(mg/l)
Na
(mg/l) T N (mg/l) TP (mg/l)
Tss
(ppm) pH
EC (mmhos
/cm)
Influent 113.5 31.3 230.5 164.0 182.3 180.4 7.74 1.69
Aeration 112.3 37.2 252.5 161.7 185.0 165.8 7.70 1.71
end of CH1A 112.0 33.0 397.0 191.0 210.0 99.1 7.85 1.89
end of CH1B 134.3 38.7 388.0 179.0 189.0 90.0 7.77 1.99
end of CH2A 116.5 31.8 253.5 188.0 200.0 85.7 7.85 1.90
end of CH2B 122.7 35.3 125.0 196.0 195.0 95.4 7.92 1.88
end of CH3A 126.5 28.5 151.5 177.0 110.0 7.27 1.47
end of CH3B 123.5 44.0 149.5 168.5 134.2 7.33 1.58
end of olives 128.5 52.0 142.5 159.0 86.7 7.70 1.53
end of oranges 114.5 30.5 155.0 164.5 108.0 7.60 1.47
end of ficus starlight 111.7 33.0 120.0 157.0 176.0 115.1 7.86 1.68
Wastewater quality parameters
CH1A and CH1B planted with Gazenia and marigold
CH2A and CH2B planted with chlorophytum.
CH3A planted with ficus benjamina.
CH3B planted with ficus starlight.
November 26-28 ,2010 Prof. Dr. Marwan Haddad 14
BOD (mg/l) COD (mg/l)
Date Influent Olives Oranges
Ficus
starlight Date Influent Olives Oranges
Ficus
Starlight
7/2/2010 190 72 75 70 7/2/2010 290 138 140 116
28/2/2010 210 75 71 69 28/2/2010 312 141 150 100
23/3/2010 334 60 64 76 23/3/2010 503 84 98 131
30/3/2010 311 70 72 80 30/3/2010 482 86 98 128
24/4/2010 335 60 24/4/2010 488 80
27/4/2010 306 118 78 130 27/4/2010 552 240 112 208
12/5/2010 370 110 117 12/5/2010 560 256 264
26/5/2010 161 80 73 26/5/2010 352 128 96
Average 277 84 80 80 Average 442 158 141 123
Removal 70% 71% 71% Removal 43% 49% 56%
BOD and COD for Vertical Flow System
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0
100
200
300
400
500
600
700
800
CO
D (
mg
/l)
Influent COD
Effluent COD
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November 26-28 ,2010 Prof. Dr. Marwan Haddad
Yield/Traditional
Agricultural Practice (*)
Yield/Hydroponic Pilot PlantCrop
Ton/acreTone/acreKg/barrel or meter
length
10-30 large
5-7 small
70.519.85Winter Squash
5-712.091.69Corn
6-70.670.094Green Beans
5-721.172.09Eggplants
20-2533.003.27Cherry Tomato
Note: Land requirement in traditional agricultural practices is about ten times that in hydroponic systems, eg 1200 plants per acre is
planted in traditional agriculture while more than 7000 plants are expected to be planted
in the same area in a hydroponic system (assuming one line empty space between planted lines or 50% cover).
November 26-28 ,2010 Prof. Dr. Marwan Haddad
Crop Total Biomass in Kg
Yield/Product Stem & Leaves Roots
Winter Squash (*) 9.853 20.13 1.99
Corn (*) 1.69 0.80 0.24
Green Beans (*) 0.094 0.66 0.21
Eggplants (**) 10.46 17.64 1.96
Cherry Tomato (**) 16.31 15.51 1.51
Biomass Production
(*) = Hydroponic Barrels, biomass is listed per barrel
(**) = Hydroponic Channels, Biomass listed is per square meter planted
