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Table 3 The influence of physio-chemical variables on the algal count in Nile river water

From: The effect of sedimentation by chemical coagulants and the rapid sand filters on algal removal at drinking water treatment plants in Egypt

Months

Nile river water Algal count (Organism/ml)

Water physio-chemical parameters

Total alkalinity as CaCO3 (mg/l)

pH

Temperature °C

Jan

6650

156 ± 6

8.4 ± 0.06

16.5 ± 0.5

Feb

4600

152 ± 6

8.3 ± 0.05

19.1 ± 0.8

March

4320

148 ± 4

8.3 ± 0.05

21.9 ± 1.0

April

4960

144 ± 4

8.2 ± 0.03

22.5 ± 1.0

May

5240

142 ± 2

8.1 ± 0.03

27.4 ± 0.6

June

4720

140 ± 2

8.1 ± 0.02

29.8 ± 0.7

July

2500

136 ± 2

7.9 ± 0.02

29.8 ± 0.5

Aug

3150

138 ± 2

8.0 ± 0.03

30.0 ± 0.5

Sept

7300

140 ± 2

8.2 ± 0.02

29.1 ± 0.5

Oct

9170

142 ± 4

8.3 ± 0.04

25.8 ± 0.6

Nov

13,800

146 ± 6

8.3 ± 0.05

22.9 ± 0.9

Dec

8500

150 ± 6

8.3 ± 0.05

18.7 ± 0.8

  1. All data represented means of three replicates ± standard deviation (SD)