Re-use of Treated Waste Water in Uttar...

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Department of Urban Development, Uttar Pradesh Re-use of Treated Waste Water in Uttar Pradesh 1 26-09-2019

Transcript of Re-use of Treated Waste Water in Uttar...

  • Department of Urban Development, Uttar Pradesh

    Re-use of Treated Waste Water in Uttar Pradesh

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    26-09-2019

  • STPs in Uttar Pradesh

    In Uttar Pradesh there are 104 STPs constructed under different programme with installed capacity of 3298 MLD.

    At present total 56 STP of capacity 1281.33 MLD are under

    construction in different programme.

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  • The treated effluent of the STPs is used for irrigation at following

    locations.

    Prayagraj Naini STP (80 MLD)

    Kanpur Jajmau STP (5 MLD, 130 MLD & 43 MLD )

    VaranasiGoithaha STP

    (120 MLD)

    Bhagwanpur STP

    (9.8 MLD)

    DLW STP

    (12 MLD)

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  • Re-use of Treated water in Prayagraj

    The effluent sewage disposal from 80 MLD STP, Naini

    (i) Naini Effluent Channel to Naini sewage farm &

    (ii) Dandi sewage farm through Dandi Rising Main and sewer line.

    Length: The Length of Naini Effluent Channel is approx 6.50 km. and Dandi sewer

    line is approx. 9.00 km

    Catchment Area: The catchment area of Naini Sewage farm is 435 hectares and

    Dandi sewage farm is 416 hectares.

    Discharge: The capacity of discharge of Naini Effluent Channel is 3750 m³/hr

    (approx.)

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  • Naini Effluent Channel

    Aerial view of Naini STP

    Naini Effluent Channel Treated Water Reaching Farms

    Naini Effluent Channel

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  • Dandi Effluent line at Prayagraj

    View Video 1

    View Video 2

    View Video 3

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    WhatsApp Video 2019-07-15 at 6.04.57 AM.mp4WhatsApp Video 2019-07-15 at 6.04.58 AM.mp4WhatsApp Video 2019-07-15 at 6.04.59 AM.mp4

  • Re-use of Treated water in Kanpur

    1. STP Located in Jajmau

    Domestic Sewage Treated from STP of 5 MLD, 130 MLD &

    43 MLD capacity is mixed with the treated effluent of 36

    MLD CETP. Nagar Nigam Kanpur has constructed main

    irrigation channel of 12.5 km (5 Km cemented & 7.5 km

    non-cemented).

    View Video7

    Kanpur_Video.mp4

  • Re-use of Treated water in Varanasi-DLW

    DlW STP(12 MLD) – The treated water of DLW STP is used for irrigation of 89 acres of their township

    and they have 8 water bodies inside their campus.These water bodies are used to dispose excess

    treated water.

    Golf Course Water Body Irrigation

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  • Re-use of Treated water in Varanasi-Bhagwanpur STP

    1.0 MLD from Bhagwanpur STP though 9.8 MLD is available for reuse. Reduction in

    farming land has resulted in lesser use of treated effluent. Around 4.0 Acre land is

    being irrigated.

    Golf Course Water Body

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  • Re-use of Treated water in Varanasi-Goithaha STP

    20 MLD from Goithaha STP is being

    used for irrigation.

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  • MOU’s for Re-use of Treated Effluent

    MOU's has been signed for reuse of treated effluent in following town's/STPs

    Mathura STP (30 MLD) for IOCL Mathura.A 20 MLD Tertiary Treatment Plant (TTP) will also be set up for the supply of treated wastewater to

    Mathura refinery of IOCL. (MOU)

    Bingawan STP(120 MLD), Kanpur for Panki thermal Power. (MOU)

    A MOU has been signed for preparation of detailed project report

    for supply of 115 MLD treated effluent from Noida to NTPC, Dadri.(MOU)

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    17 IOCL MoU.pdfMOU of TTP.pdfnewMoU for NTPC.pdf

  • Major re-use application types are :

    1. Urban

    2. Industrial

    3. Agricultural

    4. Environmental and recreational

    5. Groundwater recharge

    6. Augmentation of the river flow.

    Types of Re-use Application

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  • Reuse of Treated Water at Different States/Cities-India

    Waste Water Reuse for

    Construction in Karnataka Waste Water Reuse for Vehicle

    Washing at Karnatka

    Waste Water Reuse for

    Irrigation at Gujarat

    Waste Water Reuse for

    Irrigation in Dayanand Park,

    Nagpur

    Waste Water Reuse for Toilet

    Flushing in Vanvasi NGO, Nasik

    Waste Water Reuse for Cooling

    Towers at Vasavi Power Plant,

    Chennai 13

  • Sr Income Level Country Percentage of Waste Water Treated

    1 High Middle 70%

    2 Upper Middle 38%

    3 Lower Middle 28%

    4 Low income 8%

    Waste Water Treatment according to Income level of countries

    India – sewage generation

    Currently, India has the capacity to treat approximately 37% of

    its wastewater, or 22,963 million liters per day (MLD), against a

    daily sewage generation of approximately 61,754 MLD according to

    the report of the Central Pollution Control Board.

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  • State wise percentage generation of sewage

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  • State wise sewage generation – installed treatment capacity wise

    Sl no. Statesewage generation in

    urban areas ( MLD)

    installed treatment

    capacity(MLD)Percentage of treatment

    1 Maharashtra 8143 5160.4 632 Uttar Pradesh 7124 3298.00 463 Gujarat 4119 3062.9 744 Delhi 4155 2693.7 655 Tamil Nadu 5599 1799.7 326 Karnataka 3777 1304.2 357 Punjab 1664 1245.5 758 Rajasthan 2736 865.92 329 Haryana 1413 852.7 6010 Telangana 1671 685.8 4111 Madhya Pradesh 3214 482.23 1512 West Bengal 4667 416.9 913 Odisha 1121 385.54 34

    14 Jammu & Kashmir 547 264.74 4815 Kerala 2552 152.97 616 Uttarakhand 495 152.9 3117 Bihar 1879 124.55 718 Jharkhand 1270 117.24 9

    19 Himachal Pradesh 110 114.72 10020 Goa 145 74.58 5121 Puducherry 136 68.5 5022 Mizoram 90 10 1123 Meghalaya 95 1 124 Assam 703 0.21 025 Tripura 154 0.05 0 16

  • Country Wise - Waste Water generation & use of treated water

    S.N. Country WW Generated

    (Km3/year)

    WW Treated (

    Km3/year) /

    Percentage

    WW Used

    (Km3/year)

    Percentage (%)

    WW used

    1 USA 79.573 56.642 / 71% 2.345 3.8

    2 Latin America 29.572 5.4702 / 18 % 0.5525 11

    3 Israel 0.500 0.450 / 90% 0.262 60

    4 Middle East 22.644 11.899 / 52% 3.685 30

    5 Australia 2.094 1.779 / 85% 0.348 19

    6 Europe 52.4422 34.857 / 66% 1.384 4

    7 India 13.999 4.302 / 30% 0.450 10

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  • 1. Waste water treatment and use in humid reason of developed countries ( N.America , N. Europe and Japan ) are motivated by stringent effluent discharge

    regulations and public preference regarding environment quality.

    2. In arid and semi arid areas of developed countries ( Western N America , Australiaand S. Europe) treated waste water is used primarily for irrigation because of

    increasing competition for water between agriculture and other sectors.

    3. In Developing countries use of waste water in agriculture is because:

    a) it is the only water source available for irrigation through out the year

    b) waste water irrigation reduces the need for purchasing fertilizer.

    C) waste water irrigation involves less energy cost.

    d) waste water enable farmers in peri-urban areas to produce vegetables.

    World wide treated water use

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  • Issues

    1.Cholera epidemic in Chili in 1991 due to agriculture use of

    untreated waste water

    2. Jordan export market impact in 1991 as fruit and

    vegetable irrigated with inadequately treated waste water.

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  • STP Cost Analysis

    & Recommendations

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  • Parameter

    India as per The

    Environment

    (Projection) Rules 1

    India as per NGT

    Order2

    European waste

    water

    standards3

    Australian

    Waste water

    standards4

    US water quality

    standards5

    BOD (mg/L) 30 10 25

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  • Incremental Cost of Treatment

    Sludge, 75

    Headworks, 25

    Primary, 50

    Secondary, 75Tertiary, 75

    Sludge, 10

    Headworks, 3

    Primary, 5

    Secondary, 10

    Tertiary, 15

    Capex Cost per MLD : Rs. 250 to 300 lakhs O&M Cost per MLD : Rs. 35 to 45 per m3

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  • Incremental Cost of Treatment

    8%

    17%

    25% 25% 25%

    6%

    12%

    24%

    35%

    24%

    0%

    5%

    10%

    15%

    20%

    25%

    30%

    35%

    40%

    Headworks Primary Secondary Tertiary Sludge

    Capex Opex

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  • Unit Cost of incremental BOD Removal

    1.00 0.77

    5.60

    -

    1.0

    2.0

    3.0

    4.0

    5.0

    6.0

    Primary Secondary Tertiary

    Incremental costs for BOD Removal

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  • Planning

    Plan & Design Sewerage

    Treatment Infrastructure

    for next 50 years

    Implementation Phase 1

    Phase 1: Treat all untreated

    sewage with only preliminary

    & primary treatment

    Implementation Phase 2

    Treat all primary treated sewage with

    secondary treatment biological technologies

    to meet 10/10 standards such that treated

    wastewater can be used for irrigation &

    industrial applications

    Implementation Phase 3

    Treat secondary treated

    wastewater to meet tertiary

    treatment standards for industrial

    and other non-potable uses

    Plans should be developed for complete development. Since it is challenging to accurately forecast and visualize all scenarios for a 50 year period the on ground development should be split into multiple stages. Since planning is not a costly activity, it should be taken up for a period of at least 50 years (equivalent to expected life of most civil assets) but the implementation should be done in phases to achieve highest return on investment and in the most timely manner.

    High cost-benefit ratio. About 50 to 60% pollution reduction can be

    reduced by adopting only preliminary and primary treatment along

    with anaerobic digestion (where possible). Benefits:

    • removal of plastics, rags, suspended solids (about 50%) d associated

    organic pollution

    •Low energy & low O&M costs (which is a big challenge)

    High cost and difficult to select appropriate technology as it is dependent on various factors eg. Removal of plastics, rags, suspended solids (about 50%) and associated organic pollution

    Very high cost and difficult to select appropriate technology as it is dependent on various factorseg. Without reuse potential, upgrading to high quality treated water would essentially lead to discharging high value treated wastewater into potentially polluted water bodies

    Phased Development of Sewage Treatment & Water Reuse Infrastructure

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  • 15 year O&M Cost

    (60 to 70%)

    Capital Cost

    (20 to 25%)

    Engineering Cost

    (5 to 10%)

    Better up-front engineering can help significantly reduce the total project life-cycle costs!

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  • Thank You

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