253
18 Ultraviolet Radiation and Bromide as Limiting Factors in Eutrophication Processes in Semiarid Climate Zones
18.3 Site 2- Mujib dam
Jordan built many dams to store flood and base flow water
along the main rivers and wadis. All these dams receive
every year, flood, and base flow water originating from their
catchments, which are partly urbanized, containing light industries or are used in agricultural production.
18.3.1 Mujib Dam Study Area
Wadi Mujib is located between latitudes [95393–137739] N,
and longitudes [205442–244775] E. The dam collects flood
and base flow water (Fig. 18.6).
Land use and land cover of the Mujib catchment area
strongly influence the chemistry of the dam’s lake water and
its temporal variations. The major land characteristics of the
catchment area are: Sparse population, cultivated land and
livestock, gypsum mines, disposal of wastewater in cesspits
and fishing in the lake (Margane et al. 2008; Al-Harahsheh
and Al-Amoush 2011; Harahsheh and Salameh 2011). To
meet the aims of this study, the chemical parameters in
Mujib dam water, which could lead to eutrophication processes, such as, PO
3−
4 , NO 3
− , and SiO 2, in addition to the
biological water constituents, such as, BOD5, COD, TOC,
Chlorophyll a, plankton counts, were studied.
18.3.2 Results
The concentrations of the different parameters are affected
by the different water sources feeding the dam; large variations in water flows, water velocity, human activity, and the
Fig. 18.4 Concentrations of COD, BOD 5, and TOC in the sampled
locations of the study area. a Yarmouk River. b Mixture of KAC and
Peace water. c Mixture of KAC and Arab Dam water. d Mixture of
KAC and Ziglab Dam water e KAC water at Deir Alla. f Mixture of
KAC and KTD water
Yarmouk River(Nafq)
0
5
10
15
20
25
30
35
1
9
-
0
5
-
2
0
0
5
0
3
-
0
7
-
2
0
0
5
1
7
-
0
8
-
2
0
0
5
2
0
-
0
9
-
2
0
0
5
1 8
- 1
0
- 2
0
0
5
0 8 - 1 1 - 2 0 0 5
0 6 - 1 2 - 2 0 0 5
2 6 - 0 1 - 2 0 0 6
2 1 - 0 2 - 2 0 0 6
2 8 - 0 3 - 2 0 0 6
2 5 - 0 4 - 2 0 0 6
0 6 - 0 8 - 2 0 0 6
Date
Concentration(mg/l)
COD
BOD5
TOC
Mix(KAC+Peace water)
0
10
20
30
40
50
60
1 9 - 0 5 - 2 0 0 5
0 3 - 0 7 - 2 0 0 5
1 7 - 0 8 - 2 0 0 5
2 0 - 0 9 - 2 0 0 5
1 8 - 1 0 - 2 0 0 5
2 8 - 0 3 - 2 0 0 6
2 5 - 0 4 - 2 0 0 6
0 6 - 0 8 - 2 0 0 6
Date
Concentration(mg/l)
COD
BOD5
TOC
Mix(KAC+Arab Dam)
0
5
10
15
20
25
30
35
40
1
9
-
0
5
-
2
0
0
5
0
3
-
0
7
-
2
0
0
5
1
7
-
0
8
-
2
0
0
5
2
0
-
0
9
-
2
0
0
5
1
8
-
1
0
-
2
0
0
5
0
8
-
1
1
-
2
0
0
5
0
6
-
1
2
-
2
0
0
5
2
6
-
0
1
-
2
0
0
6
2
1
-
0
2
-
2
0
0
6
2
8
-
0
3
-
2
0
0
6
2
5
-
0
4
-
2
0
0
6
0
6
-
0
8
-
2
0
0
6
Date
Concentration(mg/l)
COD
BOD5
TOC
Mix(KAC+Ziglab Dam)
0
5
10
15
20
25
30
35
1 9 - 0 5 - 2 0 0 5
0 3 - 0 7 - 2 0 0 5
1 7 - 0 8 - 2 0 0 5
1 8 - 1 0 - 2 0 0 5
0 8 - 1 1 - 2 0 0 5
0 6 - 1 2 - 2 0 0 5
2 6 - 0 1 - 2 0 0 6
2 1 - 0 2 - 2 0 0 6
2 8 - 0 3 - 2 0 0 6
2 5 - 0 4 - 2 0 0 6
0 6 - 0 8 - 2 0 0 6
Date
Concentration(mg/l)
COD
BOD5
TOC
KAC(Deir Alla)
0
20
40
60
80
100
120
1 9 - 0 5 - 2 0 0 5
0 3 - 0 7 - 2 0 0 5
1 7 - 0 8 - 2 0 0 5
2 0 - 0 9 - 2 0 0 5
1 8 - 1 0 - 2 0 0 5
0 8 - 1 1 - 2 0 0 5
0 6 - 1 2 - 2 0 0 5
2 6 - 0 1 - 2 0 0 6
2 1 - 0 2 - 2 0 0 6
2 8 - 0 3 - 2 0 0 6
2 5 - 0 4 - 2 0 0 6
0 6 - 0 8 - 2 0 0 6
Date
Concentration(mg/l)
COD
BOD5
TOC
Mix(KAC+KTD)
0
20
40
60
80
100
120
1
9
-
0
5
-
2
0
0
5
0
3
-
0
7
-
2
0
0
5
1
7
-
0
8
-
2
0
0
5
2
0
-
0
9
-
2
0
0
5
1 8 - 1 0 - 2 0 0 5
0 8 - 1 1 - 2 0 0 5
0 6 - 1 2 - 2 0 0 5
2 8 - 0 3 - 2 0 0 6
Date
Concentration(mg/l)
COD
BOD5
TOC
a
c
e
b
d
f