Organic Waste Recycling

Aquatic weeds and their utilization 317

Table 7.2 Chemical composition of water hyacinth taken from several natural Florida,
USA, locations (composition reported as percentage dry weight)

Origin Ash C N C/N
ratio

P K Ca Mg Na

Lake Istokpoga
(Sebring)

24.4 18.0 1.08 16.7 0.14 1.00 0.73 0.38 0.15

Lake Eden Canal
(SR 532)

19.4 28.8 0.86 33.5 0.09 1.95 0.46 0.31 0.23

Lake Thonotosassa 23.0 23.0 1.17 19.7 0.33 3.35 1.49 0.29 0.21
Waverly Creek (SR
60)

25.0 33.1 2.26 14.6 0.56 3.10 1.58 0.50 0.37

Arbuckle Creek 23.4 34.9 1.90 18.4 0.23 3.35 1.06 0.49 0.28
Lake Tohopekaliga
(Kissimmee)

21.7 34.0 1.69 20.1 0.60 4.70 1.56 0.71 0.53

Lake Monroe
(Sanford)

20.4 32.5 2.86 11.4 0.59 5.55 1.73 0.54 0.83

Duda Canal No 1
(Bella Glade)

20.3 39.1 1.30 30.1 0.13 3.80 1.99 0.60 0.48

St. Johns River
(Astor)

20.1 36.4 2.33 15.6 0.51 6.50 1.43 0.51 0.63

W. R. Grace landfill
(Bartow)

19.0 36.4 1.86 19.6 0.59 2.72 1.99 0.56 1.54

Ponce de Leon
Springs

18.5 37.5 1.74 21.5 0.33 5.40 2.34 0.50 0.47

Waverly Creek (SR
540)

18.5 38.1 1.76 21.6 0.32 4.85 1.45 0.55 0.67

Duda Canal No 2
(Bella Glade)

17.5 37.8 1.66 22.8 0.15 4.70 2.28 0.69 0.57

Lake Alive (North
of Florida)

17.3 38.6 1.17 33 0.40 3.66 2.41 0.69 0.40

Lake Apopka
(Monteverde I)

15.8 38.8 1.22 31.8 0.14 4.26 2.07 0.54 0.41

St. Johns River
(Palatka)

15.8 38.0 1.82 20.9 0.16 3.44 1.83 0.73 0.86

Lake George 15.4 40.2 1.48 27.1 0.21 3.21 1.91 1.86 1.24
Lake Apopka
(Monteverde I)

14.9 39.8 1.36 29.3 0.09 4.08 1.96 0.60 0.21

Lake East
Tohopekaliga (St.
Cloud)

14.7 37.2 1.08 34.5 0.23 2.90 1.19 0.51 0.53

Mean 19.2 34.9 1.61 23.3 0.31 3.81 1.66 0.56 0.56
Standard Deviation 3.2 5.9 0.50 7.0 0.18 1.30 0.53 0.14 0.36