Hanumantaal Lake – Jabalpur

Eutrophication of Hanumantaal Lake,
is making it dead with sewage input. Join us to revive it from death bed.

Hanumantaal Lake – Jabalpur M.P., India Geographical Position – 23°10’53″ N, 79°56’15″ E, Mean Sea Level – 410 M Location – Gram Jabalpur. Area – 6.33 hectare

Hanumantaal Lake is situated in the center of the town of Jabalpur and it is one of the important landmarks of the town. It is more or less rectangular in shape; walls of the tank are constructed by stone masonry having bathing Ghats on all sides. It is a place of historical and religious importance of the town. Hanumantaal was constructed in the year 1794 during Bhonsale’s period. There are several temples situated on the banks of the lake. Entire catchment of the tank is covered by densely populated urban settlement. This Taal has many diffuse point sources which carry discharges from drainage channels, during rainfall surface runoff with organic matter, sediment, decaying matter etc. into the lake. Solid waste dumping and disposal of religious remains is another problem of this lake. Idol immersion during Durgotsav and Ganeshotsav festival is a big problem with this lake. Environmental problems of the lake are water quality degradation, reduction in storage capacity, growth of aquatic weeds, and inflow of sewage, solid waste dumping, washing clothes and bathing etc. There is a need for treatment of domestic sewage and other sewage flowing into the lake, improving the sanitation, sewage and drainage network around the lake.

Understanding Hanumantaal Lake

Hanuman Tal situated in center of the town is one of the important land marks of Jabalpur town. It is a rectangular shaped tank; walls at the tank are constructed by stone masonry having bathing Ghats on all sides.  Hanumantaal was constructed in the year 1794 during   Bhonsale’s period. The lake is used for washing clothes, bathing of animals and discharge of domestic wastes.  The salient features of the lake are given in Annexure-3.  It is also used for immersion of more than 400 idols every year during festival seasons.

Catchment Characteristics

Hanuman Tal is located in the center area of the Jabalpur city with 0.312 Sq.Km. Entire catchment of the tank is covered by urban settlement.  This lake has many non-point sources which carry discharges from drainage channels; during rainfall surface runoff carries organic matter, sediment, decaying matter etc. into the lake. Comparatively the catchment is having very small area.  Built up area with sparse vegetation covers an area of 82 % of the total catchment area while 17.6 % is occupied by water body.  Ward no.16, 18, 19, 20 and 21 contribute the catchment with 13337 population.

Water Quality

Hanumantaal  is  important   water  body  of  Jabalpur   city  for  religious  point  of  view.  The anthropogenic pressure has deteriorated the water quality of the lake.  The lake is receiving domestic sewage through surface runoff.  As per the CPCB norms for class D, the pH and DO were observed in the desirable limit.   The values for BOD ranged from 12 mg/1 to 20 mg/1 and for COD from 42 mg/1 to 62 mg/1 respectively. The nitrate and total phosphorus values ran from 0.42 to 0.98 mg/1 and 0.19 to 0.42 mg/1 respectively and were high enough for growth of aquatic vegetation.

Distribution of the land covered in Hanumantaal catchment

S.No.

Land  Cover  Class

Area(Sq. Km.)

% of the Catchment

1

Built-up with sparse vegetation

0.257

82.3

2

Water body

0.055

17.6

 

As per estimation based on population the total sewage and solid waste generation in the Hanumantaal catchment in JMC area is 1.20 MLD & 3.33 MT/day respectively. The ward wise sewage and solid waste generation in JMNMC catchment is given in the table below;

Sewage & MSW generation in Hanumantaal Catchment

Ward No.

Area of Ward within catchment (sq.km)

Ward’s Total Area (Sq.Km.)

Ward’s Population

Population density (p/ha)

Contributing Population

sewage produced

MSW generation (MT/day)

 

 

 

 

 

 

LPD

Cumec

 

16

0.035

0.152

11235

736.82

2577

231930

0.0027

0.64

18

0.012

0.198

11289

570.96

697

62730

0.0007

0.17

19

0.209

0.284

9267

326.37

6818

613620

0.0071

1.7

20

0.029

0.108

8447

779.58

2255

202950

0.0023

0.56

21

0.027

0.198

7264

366.59

990

89100

0.001

0.25

Total

0.312

0.94

47502

 

13337

1200330

0.0138

3.33

 

 

 

 

 

 

1.20 MLD

 

 

 

Ecological Status

Phytoplankton included the representative from Chlorophyceae, Bacillariophyceae, Cynophyceae and Euglenophyceae.  Chlorophyceae contributed 42-49% Bacillariophyceae   30-33%, Cynophyceae 19-22% and Euglenophyceae 0-6% of the total population.

Among the Zooplankton Rotifera, Cladocera, Copepoda, Ostracoda and Protozoa were recorded. Rotifera was most dominant and contributed 33-39 %, Cladocera, 17-21 %, Copepoda 14-22%, Ostracoda 0-11 % and Protozoa 17-29% of the total population.

Macrophytes were represented by three major groups Emergent, Submerged and free-floating. Emergent group of macrophytes contributed 37-46%, submerged 27-44% and floating 19-27% of the total species.

The Project is to do an in situ bio remediation of the Hanumantaal Lake for ensuring a better quality of water in the catchment area using a microbiology / nano technology based solution, ensuring no harm to the biodiversity of the aquatic ecology of flora & fauna in and around the Hanumantaal Lake.

 

Hanumantaal Lake - Jabalpur

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