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| Last Updated:: 12/02/2016

Status of sewage treatment plant in Delhi

The Delhi Jal Board (DJB) is responsible for water and wastewater (Sewage) treatment in Delhi. The present Sewage treatment capacity of DJB is 512.4 MGD. In addition DSIDC is constructing 14 Common Effluent Treatment Plants (CETP's) and one more CETP is being constructed by Delhi Development Authority (DDA) with a total capacity of 40 MGD. Thus, the wastewater treatment capacity likely to be in position by the year-end (2003) is 552.4 MGD against wastewater generation of 612 MGD. The DJB plans to augment the capacity of Sewage treatment plants by 143 MGD by March 2005, thereby, raising the wastewater treatment capacity to 695.4 MGD against an estimated wastewater generation of 752 MGD.

 

The DJB has raised the Sewage treatment capacity from 284 MGD in 1995 to 512.4 MGD as on date. As far as utilisation of treatment capacity is concerned at various Sewage treatment plants, it has increased the utilisation of various Sewage treatment plants from 200 MGD in 1995 to 380 MGD.

 

The trunk sewers exist in a length of 130 km in Delhi. Some of them were constructed as early as in 1930's. Most of them have outlived their life, silted up and settled at many places. Therefore it requires rehabilitation/ desilting.

 

The rehabilitation/ desilting of trunk sewers in a length of 22 km. has been completed. The work for a further length of 10.5 km. is in progress and is likely to be completed by 2004.

 

The Sewage network exists in a length of about 6,000 km. consisting of branch sewers/ peripheral sewers and trunk sewers. DJB has prepared an Action Plan to replace the 600 km. length of peripheral and branch sewers out of which, approximately 160 km of undersize branch sewers have been replaced and balance are likely to be replaced in a phased manner.

 

 

Treatment and Disposal of Waste Water

 

Delhi Jal Board is responsible for treatment and disposal of waste water through an efficient network of about 7000 Km of Sewage lines across Delhi. DJB has provided sewage facilities in all the approved colonies, all 44 re-settlement colonies and 126 urban villages, 541 unauthorized-regularized colonies and 100 unauthorized colonies. 

 

At present, Delhi Jal Board is supplying around 830 MGD of drinking water to population of Delhi.The sewage generated @ 80% is as per CPHEEO norms and is estimated aout 680 MGD. There are 36 Sewage Treatment plants at 21 locations.

 

S.No

Sewage Treatment plants at

Capacity (MGD)

1

Keshopur phase I, II ,III

72 MGD

2

Okhla ph I, II, III, IV, V, VI

170 MGD

3

Kondli ph I, II, III, IV

90 MGD

4

Rithala I, II

80 MGD

5

Yamuna Vihar I, II

20 MGD

6

Vasant kunj I, II

5 MGD

7

Corporation pillar I, II, III

40 MGD

8

Narela

10 MGD

9

Nilothi

40 MGD

10

Najafgarh

5 MGD

11

Pappankalan

20 MGD

12

Dr. Sen Nursing Home Nalla

2.2 MGD

13

Delhi Gate Nalla

2.2 MGD

14

Mehrauli

5 MGD

15

Rohini

15 MGD

16

Ghitorni

5 MGD

17

Kapashera

5 MGD

18

Commonwealth Games villages

1 MGD

19

Bakkarwala

0.66 MGD

20

Molarbandh

0.66 MGD

21

Timarpur Oxidation pond

6 MGD

 

Total

594.72

 

Source: Delhi Jal board

 

 

Sewage treatment plants and their capacities (MGD)

 

Location of STP
Existing capacity
Additional capacity proposed upto 2021
Rithala
80
-
Rohini
15
40
Yamuna Vihar
20
25
Kondali
45
45
Narela
10
40
Pappan kalan (Dwarka)
20
20
Najafgarh
5
-
Vasant Kunj
5
-
Mehrauli
5
-
Ghitorni
5
-
Keshopur
72
-
Nilothi
40
20
Cantonment
-
8
Okhla
140
30
Delhi Gate
2.2
15
Sen Nursing Home
2.2
-
Coronation Pillar
40
50
Timarpur
6
 
Total
512.4
293

 

Source: Master Plan Delhi for 2021, 2007

 

Installed capacity of water treatment plants (Delhi): 2006-2012 (As on 31st March)

 

Sl.No  Name of Plants                                              Capacity (MDG)
2006 2007 2008 2009 2010 2011 2012
1
Chandrawal Water
House No I & II
90 90 90 90 90 90 90
2 Wajirabad I, II & III 120 120 120 120 120 120 120
3 Haiderpur 200 200 200 200 200 200 200
4
North Sahadhara
(Bhagirathi)
100 100 100 100 100 100 100
5 Bawana  ---  ---  --- 20 20 20 20
6 Nangloi 40 40 40 40 40 40 40
7 Sonia Vihar  --- 140 140 140 140 140 140
8 Ranney Wells & Tube Wells 100 100 100 100 100 100 100
9
Recycling of Water at Bhagirathi
Haiderpur & Wajirabad
 ---  ---  ---  --- 37 37 37
10 Commonwealth Games Village  ---  ---  ---  ---  --- 1 1
  Total 650 790 790 810 847 848 848

 

Sewerage treatment capacity and its utilization

 

                                                                                                                                                                                                                                                                                                                                                                                                      MDG

Sl.No
Name of Sewarage
Plants (STPs)
                   Capacity
Atual Treatment
as on 31.3.2012
% of Utilization
31.3.2001 31.3.2012
1 Okhla 140.0 140.0 112.1 80.09
2 Keshopur 72.0 72.0 46.00 63.89
3
Coronation Piller with
Oxidation Ponds at
Timarpur
46.00 46.00 7.63 16.59
4 Rithala 40.00 80.00 42.03 52.54
5 Kondli I, II, III & IV 45.00 45.00 56.40 125.33
6 Yamuna Vihar I, II 10.00 20.00 10.95 54.75
7 Vasant Kunj 5.00 5.00 4.10 82.00
8 Ghitorni 5.00 5.00 ---- ----
9 Pappankalan 20.00 20.00 17.73 88.65
10 Narela 10.00 10.00 1.10 11.00
11 Najafgarh 5.00 5.00 0.90 18.00
12 Delhi Gate 2.20 2.20 2.37 107.73
13 Sen Nursing Home 2.20 2.20 2.54 115.45
14 Rohini ---- 15.00 ---- ----
15 Nilothi ---- 40.00 14.58 36.45
16 Mehrauli ---- 5.00 2.74 54.80
17 CWG Village ---- 1.00 0.09 9.00
18 Molarbad ---- 0.65 0.50 76.92
19 Bakkerwala ---- 0.70 0.13 18.57
  Total 402.40 514.75 321.92 62.54

 

Source:Delhi Jal Board

 

Status of sewage treatment plants of Delhi

 

S.no
Name of STP
Capacity (MGD) as on 31.3.2001
Capacity(MGD) As on 31.3.2008
 
Actual treatment in MGD As on 31.3.2008
1
Okhla
140.00
140.00
131.44
2
Keshopur
72.00
72.00
30.55*
3
Coordination pillar with Oxidation
Ponds at Timarpur
46.00
46.00
30.78
4
Rithala
40.00
80.00
44.34
5
KondliI,II,III, IV
45.00
45.00
53.08
6
Yamuna Vihar I,II
10.00
20.00
11.31
7
Vasant Kunj
5.00
5.00
4.16
8
Ghitomi
5.00
5.00
-
9
Pappankalan
20.00
20.00
15.65
10
Narela
10.00
10.00
1.25
11
Najafgarh
5.00
5.00
1.52
12
Delhi Gate
2.20
2.20
2.53
13
Sen Nursing Home
2.20
2.20
2.56
14
Rohini
-
15.00
.
15
Nilothi
-
40.00
17.15
16
Mehrauli
-
5.00
1.72
 
Total
402.40
512.40
348.04

*LESS UTILISATION AS SEWER IN THIS COMMAND ARE UNDER REHABILITATION.

 

Source: Delhi Jal Board

 

Status of sewage treatment plants of Delhi

 


Name of Sewage Treatment Plant


Total Capacity(Million litres per day)


Actual Flow(Million litres per day)

Mehrauli 22.7  Nil
Vasant Kunj 22.7  18.16
Okhla 635  684.00
Najafgarh 22.7  Nil
Papan Kalan 90.8  40.86
Kesho Pur  327.5  338.21
Nilothi  181.6  Under Construction
Coronation Pillar  178  123.57
Rohini  68.1  Under Construction
Narela  45.4  1.68
Rithala  363.2  198.45
Yamuna Vihar  45.4  32.08
Kondli  204.5  133.4
SenNursing Home  10  9.08
DelhiGate Rajghat  10  10.69
Nehru Vihar Oxidation Pond  27.24  8.1


Source: Status of sewage treatment plants in Ganga Basin, CPCB Publication, June 2003

 

Status and Performance of Sewage Treatment Plants at Delhi

 

S.no Sewage Treatment Plant Installed Capacity(MDG) Prevent Utilization (MGD)
BOD(md/1) COD(md/1)
TSS (mg-1)
Intel Outlet Intel Outlet Intel Outlet
1 Coronation pillar phase-1 10 19.95 87 9 301 58 722 26
Coronation pillar phase-11 10+10 19.95 418 9 1592 58 722 28
Coronation pillar phase-111 10 total 46 including oxidation ponds 19.95 ------- --------- ------- -------- ------- ---------
2 Oxidation Ponds Timarpur 6 ------- ------- ------- ------- ------- ------- ---------
3 Keshopur Phase-1* 12 ------- ------- ------- ------- ------- ------- ---------
Keshopur Phase-11* 20 ------- ------- --------- ------- -------- ------- ---------
Keshopur Phase-111* 40 Total-72   ------- --------- ------- -------- ------- ---------
4 Okhle Phase-1 30 122.74 147 47 464 172 491 73
Okhle Phase-11 12 122.74 196 70 611 323 554 2
Okhle Phase-111 37 122.74 196 36 61 114 554 69
Okhle Phase-1V 45 122.74 112 33 381 119 272 58
Okhle Phase-V 16 Total-140 122.74 115 24 521 115 332 63
5 Narela 10 2.6 51 12 154 51 204 23
6 Najafgarh 5 0.2 115 7 401 51 504 25
7 Nilothi 40 9.45 178 19 583 89 316 43
8 Dr. Sen Nursing Home Nalla 2.2 2.53 106 4 446 14 248 24
9 Delhi Gate Nalla 2.2 2.43 306 3 925 13 969 6
10 Yamuna Vihar Phase-1 10 11.77 134 8 319 57 221 47
Yamune Vihar Phase-11 10 Tatal-20 11.77 92 8 407 71 301 60
11 Pappan Kalan 20 8.14 179 5 625 32 513 22
12 Kondli Phase-1 10 45 219 28 466 71 286 91
Kondli Phase-11 25 45 97 16 381 68 388 13
Kondli Phase-111 10 Total-45 45 86 18 400 62 218 21
13 Mehrauli 5 1.7 217 21 755 113 585 33
14 Rohini 15 ------- ------- ------- ------- ------- ------- ---------
15 Rithala (Old) 40 47.32 110 11 426 42 250 29
Rithala (New) 40 Total-80 ------- 110 21 426 79 250 28
16 Vasant Kunj Phase-1 2 46 156 42 542 166 494 100
Vasant Kunj Phase-11 3 Total-5 46 169 18 565 47 337 51
17 Ghitorni 5 ------- ------ ------- ------- ------- ------- ---------
  Total

512.4

2305 (MLD)

278.43

1252 (MLD)

Note: STPs are under augmentation

 

Source: Delhi Jal Board