pollution load assessment of kalyan sagar, udaipur
TRANSCRIPT
Tripura State Pollution Control Board Parivesh Bhawan, Pandit Nehru Complex
Agartala, Kunjaban, 799006
POLLUTION LOAD ASSESSMENT OF
KALYAN SAGAR, UDAIPUR
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 1
To assess the water quality of Kalyan Sagar and the state of the
natural habitat of Klayan Sagar lake, on November 06, 2014 a scientific
team of Tripura State Pollution Control Board visited the Kalyan Sagar and
collected water samples from Kalyan Sagar.
In order to assess the water quality of Kalyan Sagar, a scientific team
of Tripura State Pollution Control Board went to Udaipur and collected
water samples from four points covering the whole area of Kalyan Sagar on
6th November, 2014 and analysed the different parameters, that determine
water quality in the Laboratory of the Board.
The Physico-Chemical as well as bacteriological qualities of surface
water were analysed using the standard methods given in APHA (American
Public Health Association).
RESULTS :
The results of water samples collected from Kalyan Sagar, Udaipur are
shown in table-1 at page-2. The analytical observation and visual
observations are shown at pages-3. The conclusion & recommendations
based on this study are shown at page-4. The photographical representation
with respect to various activities in Kalyan Sagar are shown at pages 6-8.
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 2
Table-1 : Analytical Results of Water Samples of Kalyan Sagar
Sl.
No.
Parameters S1 S2 S3 S4 Indian
Standard for Drinking
Water
Indian
Standard for Surface
Water
1. pH 7.88 8.08 7.72 8.20 6.5-8.5 6.5-8.5
2. Turbidity
(NTU) 21.8 15 15 15.9 5 -
3. Conductivity
(µS/cm) 12.74 11.57 11.71 11.67 - -
4. Salinity (PSU) 0.02 0.02 0.02 0.02 - -
5. Total
Suspended Solids (mg/l)
24 16 12 12 - -
6. Total Dissolved Solids (mg/l)
242 198 238 216 500 500
7. DO(mg/l) 8.15 6.60 6.98 6.79 ≥6 ≥5
8. BOD(mg/l) 6.79 3.20 6.0 3.48 ≤3 ≤3
9. COD (mg/l) 288 264 282 268 - 250
10. Alkalinity (mg/l)
71.76 71.76 76.48 71.76 200 -
11. Total Hardness
(mg/l)
50.50 50.50 60.60 50.50 300 300
12. Calcium
(mg/l) 12.14 12.14 8.09 12.14 75 <80.10
13. Magnesium
(mg/l) 4.90 4.90 9.81 4.90 30 <24.28
14. Chloride (mg/l)
34.25 29.36 34.25 24.47 250 250
S1: East bank of Kalyan Sagar, Udaipur, Gomati Tripura
S2: South-East part of Kalyan Sagar, Udaipur, Gomati Tripura
S3: South-West part (Main Ghat) of Kalyan Sagar, Udaipur, Gomati Tripura
S4: North-West part of Kalyan Sagar, Udaipur, Gomati Tripura
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 3
ANALYTICAL OBSERVATIONS :
From the analytical report it is observed that the BOD values of four water
samples were higher than the prescribed standard limit (3.0 mg/l). The
Chemical Oxygen Demand (COD) for all the four water samples (S-1, S-2, S-
3 & S-4) were slightly higher than the prescribed standard limits. The
Turbidity of the water samples were also higher than the standard limit. The
DO value of the four water samples were slightly higher than the prescribed
standard value (6.0 mg/l). The remaining parameters were within the
prescribed standard limts.
Note:
If DO is above standard value (6 mg/l) the water quality is good.
If BOD is more than 3 mg/l the water quality is bad.
If COD is more than 250 mg/l the water quality is bad.
VISUAL OBSERVATION :
From the physical observation and interaction/discussion/interview with
the local people & shop owners in and around Kalyan Sagar, the team of
Tripura State Pollution Control Board gathered the following facts:
1. Aerators have been installed nearby the main ghat of Kalyan Sagar
which were not working.
2. Tourists are providing fish pellates for the turtle & fish in Kalyan
Sagar.
3. Tourists are taking bath mainly in the three ghats of western side and
local people are taking bath randomly on all sides of Kalyan Sagar
throughout day. Turtles & fishes may be restless due to this activity.
4. An outlet is there at the north-eastern corner of Kalyan Sagar (Near
Dhana Manikya Mukta Mancha) which is full of mud and wastes.
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 4
CONCLUSION :
From the result of water samples studied it is found that the water quality of
Kalyansagar, (Matabari), Udaipur, Gomati District is not suitable for
drinking & bathing purposes.
RECOMMENDATION :
Based on the analytical observation and Visual observation the
recommendations made by Tripura State Pollution Control Board are as
follows:
1. There should be specific bathing zone at the south or West side of
Kalyan Sagar for tourists as well as local people.
2. The light should be off during night time in and around the Hatchery.
3. The outlet should be cleaned up regularly.
4. Washing of clothes & utensils should be banned.
5. Population Survey for the fishes and Turtles in the Kalyan Sagar
should be done immediately.
6. Sufficient food should be given for the fishes and turtles in the Kalyan
Sagar as per the quantity of fishes and turtles.
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 5
PHOTOGRAPHICAL
REPRESENTATION
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 6
Photo-1: Sample collection from Kalyan Sagar by TSPCB officials.
Photo-2 : Aerators installed nearby the mainghat of Kalyan Sagar .
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 7
Photo-3: View of hatchery in Kalyan Sagar .
Photo-4: Dead fish of Kalyan Sagar .
POLLUTION LOAD ASSESSMENT OF KALYAN SAGAR (MATABARI DIGHI)
Tripura State Pollution Control Board Page 8
Photo-5: Image of dead Turtle in the Hatchery of Kalyan Sagar .
Photo 6. Enlarged view of dead Turtle in the Hatchery of Kalyan Sagar.
Physico-Chemical Results of Surface Water collected from Kalyan Sagar, Udaipur, Gomati Tripura
Sl.
No. Parameters S1 S2 S3 S4
Indian
Standard for
Drinking
Water
Indian
Standard for
Surface
Water
1. pH 7.88 8.08 7.72 8.20 6.5-8.5 6.5-8.5
2. Turbidity
(NTU) 21.8 15 15 15.9 5 -
3. Conductivity
(µS/cm) 12.74 11.57 11.71 11.67 - -
4. Salinity (PSU) 0.02 0.02 0.02 0.02 - -
5. Total
Suspended
Solids (mg/l)
24 16 12 12 - -
6. Total
Dissolved
Solids (mg/l)
242 198 238 216 500 500
7. DO(mg/l) 8.15 6.60 6.98 6.79 ≥6 ≥5
8. BOD(mg/l) 6.79 3.20 6.0 3.48 ≤3 ≤3
9. COD (mg/l) 288 264 282 268 - 250
10. Alkalinity
(mg/l) 71.76 71.76 76.48 71.76 200 -
11.
Total
Hardness
(mg/l)
50.50 50.50 60.60 50.50 300 300
12.
Calcium
(mg/l)
12.14 12.14 8.09 12.14 75 <80.10
13. Magnesium
(mg/l) 4.90 4.90 9.81 4.90 30 <24.28
14. Chloride
(mg/l) 34.25 29.36 34.25 24.47 250 250
S1: East bank of Kalyan Sagar, Udaipur, Gomati Tripura
S2: South-East part of Kalyan Sagar, Udaipur, Gomati Tripura
S3: South-West part (Main Ghat) of Kalyan Sagar, Udaipur, Gomati Tripura
S4: North-West part of Kalyan Sagar, Udaipur, Gomati Tripura
Observation:
The water from the Kalyan Sagar, Udaipur was collected from above mentioned sites on 06.11.2014 by the board officials for analysis of physico-chemical parameters. The water samples were analyzed in the laboratory of TSPCB wing using standard methods given in APHA (American Public Health Association).
From the result table, it is observed that, (i) The value of Biochemical Oxygen Demand is found to high for all
samples as compared to standard value given in BIS (Bureau of Indian Standard).
(ii) The value of Chemical Oxygen Demand is also found as high as compared to standard value.