DRAINAGE DEPARTMENT PRESENTATION ON TERTIARY SEWAGE TREATMENT PLANT SURAT MUNICIPAL CORPORATION

Transcription

1 DRAINAGE DEPARTMENT PRESENTATION ON TERTIARY SEWAGE TREATMENT PLANT SURAT MUNICIPAL CORPORATION

2 Sewerage System

3 Sewerage Scenario Coverage Population catered Length of sewer network : sq.km. (i.e. 82 % of present habitable area 204 sq.km.) : 97 % of present population : > 1776 km Nos of sewer manholes : > 65,000 Sewage Pumping Stations Sewage Treatment Plants : 60 Nos ( MLD) : 11 Nos ( MLD)

4 Tertiary Sewage Treatment Plant

5 Bamroli Sewage Treatment Plant Single Stage Biological Treatment (2003) Two Stage Biological / Secondary Treatment (2008) Tertiary Treatment (2014) : Phase I (Operational) Tertiary Treatment (2017) : Phase II (Under Construction)

6 Bamroli Sewage Treatment Plant Phase : I Single Stage Biological Treatment Capacity : 100 MLD Technology : Anaerobic Biological Treatment through UASB system. Year of Commissioning : 2003 Phase : II Two Stage Biological / Secondary Treatment Capacity : 100 MLD Technology : Plant upgraded through Extended Aeration to meet the revised stringent effluent discharge standards. Year of Commissioning : 2008 Phase : III - Tertiary Treatment Capacity : 40 MLD Product Water Technology : Ultra Filtration (UF) & Reverse Osmosis (RO) System. Year of Commissioning : 2014 Phase : IV Addition in Tertiary Treatment Capacity Capacity : 35 MLD Product Water Technology : Ultra Filtration (UF) & Reverse Osmosis (RO) System. Year for Commissioning : 2019

7 Need of Waste Water Recycling Project To meet huge water requirement due to industrial development, recycle and reuse of water is essential. Assured water requirement and assured revenue generation; enable guaranteed recovery of O&M cost by implementing such project on EPC basis. Revenue generation from recycled Waste water. Assured Water supply for Pandesara Industrial units.

8 Recycle, Reuse of Sewage Water Through Tertiary Treatment : Bamroli STP

9 PROJECT CONCEPT Tertiary treatment of secondary treated sewage and to generate Industrial Grade Water for supply of Industrial Grade water to Pandesara Industrial Estate. OBJECTIVE Tertiary Sewage Treatment Plant - Waste water Recycle - Reuse Project Recycle / Reuse of waste water Contribution towards reducing the dependency on conventional resources of water. TECHNOLOGY Sand Filtration Ultra-filtration (UF) Reverse Osmosis (RO) Activated Carbon Filter (ACF)

10 Tertiary Sewage Treatment Plant Capacity of the plant : 40 MLD Contractor : M/s Enviro Control Associates (I) Pvt. Ltd Technology partner : M/s Hyflux, Singapore Capital Project Cost : Rs crores Present Fresh water cost to Industries : Rs. 23/KL Recycle water cost to Industries : Rs /KL (Yearly Increment on Indexation base) Project commissioned on : May 2014 Total Recycle water Supply to Industries till 15th November-17 : ML Total Income through Industrial Grade Water till 15th November-17 : Rs Crore

11 Tertiary Treatment Process Secondary Effluent Pre- Chlorination 61 MLD Sand Filter Chemical Dosing Post-Chlorination & ph adjustment 57 MLD Reverse Osmosis Degasser System 43 MLD 32 MLD 32 MLD Product water Tank Ultra filtration 8 MLD 8 MLD To Pandesara Industrial Estate Reject Water Flocculation 21 MLD Disposal Activated Carbon Filter

12 Partners & Roles SMC USER OPERATOR Conceptualization of project Preparation of detailed design, invitation of tender and selection of operating agency Project funding Land allocation Project execution Payment of electricity bill End consumer Assurance to purchase committed quantity for well defined time duration Acceptance of the rate structure as mutually agreed Agreed to price variation corresponding to RBI index Regular payment to support the system Monitoring of inlet and outlet parameters Construction of plant to meet the desired parameters Complete O&M of the plant including all major/minor repairs, replacements including spares Comprehensive treatment responsibility from collection point to disposal point

13 TTP Inlet Treated Water Quality Achieved TTP Outlet Parameters Inlet of TTP Outlet of TTP Desirable limits as per Drinking water standard IS Color (Hazen units) 55 <5 5 ph Total Hardness as CaCO3 (mg/l 750 < Iron as Fe(mg/L) 0.63 < Manganese as Mn (mg/l) 0.12 < Raw-TTP Inlet-TTP Outlet Total Dissolved Solids (mg/l) 2100 < BOD (mg/l) 20 <5 No Standard COD (mg/l) 100 <50 No Standard Suspended Solids (mg/l) 30 <2 5.0 (Turbidity) Total Nitrogen as N (mg/l) 14 < Total Phosphorous as P (mg/l) Residual Chlorine (mg/l) <0.25

14 BENIFITS Tertiary Sewage Treatment Plant - Waste water Recycle - Reuse Project Reduced diversion of drinking water for non-potable purposes. Conserve valuable ground water resources for future generation. Facilitates recycling of wastewater - an environmentally sound and progressive advance practice. Assured resource for Pandesara Industrial Estate. Enabled SMC to reduce pressure on conventional water resources in the city. Guaranteed revenue generation for Surat Municipal Corporation.

15 Existing Plants : 40 MLD capacity at Bamroli. (Phase I) to cater need of Pandesara Industrial Estate. Work In Progress : 35 MLD capacity at Bamroli. (Phase II) to cater need of Sachin Industrial Estate. 40 MLD capacity at Dindoli to cater additional need of Pandesara Industrial Estate. To explore further use of Tertiary Treated Sewage Water for Gardening, Lake Development, One TTP of 1 MLD capacity is taken up as pilot project at Kavi Kalapi Garden, West Zone of Surat. Future Planning : Conversation with Utran power house for use of Tertiary Treated Sewage Water is under process. Upon finalization of the actual demand, Techno - Commercial feasibility work will be expedited for TTP at Kosad. To cater the demand of Tertiary Treated sewage water for industrial cluster of Hazira based industrial area, SMC had series of meetings with end users & accordingly planning has been undertaken to establish TTP at Bhesan. Tertiary Treatment Plant : Scenario

16 Tertiary Treatment Plant : Future Planning Existing functional STP Use of Treated Water Nearest Power Plant Detail Waste WW Quantity of Details regarding Power Water Distance water treated treated use of treated Station required by from received per day Waste Waste water (Installed plant per STP per day (MLD) water used capacity, day (MLD) (KM) (MLD) (MLD) MW) # Location & Capacity (MLD) 1 Bamroli STP Dindoli STP MLD Supply of Tertiary Treated Water as Industrial Grade Water to Pandesara GIDC 35 MLD under construction for Supply of Tertiary Treated Water as Industrial Grade Water to Sachin GIDC MLD under construction for Supply of Tertiary Treated Water as Industrial Grade Water to Pandesara GIDC Current source of water

17 Tertiary Treatment Plant : Future Planning # Location & Capacity (MLD) 3 Singanpore STP Karanj STP Bhatar STP Anjana STP Bhesan STP 100 Existing functional STP Waste water received per day (MLD) WW treated per day (MLD) Power Station (Installed capacity, MW) Nearest Power Plant Detail Water required by plant per day (MLD) Distance from STP (KM) Current source of water Sugen Power Plant (Torrent), Gaypagla, Surat ( MW) NTPC Power Plant, Kawas, Hazira, Surat Guj State Electricity Generation Ltd (GSEG), Power Plant, Kawas, Hazira, Surat ONGC Power Plant, Bhatpore, Hazira, Surat 9 26 Tapi river Tapi river Ichhapore GIDC Tapi river

18 # Location & Capacity (MLD) 8 Asarama STP Variav-Kosad STP Tertiary Treatment Plant : Future Planning Existing functional STP Waste water received per day (MLD) WW treated per day (MLD) Gavier Total Power Station (Installed capacity, MW) Guj State Electricity Corporation Ltd (GSECL), Utran Gas based Power Plant, Utran, Surat Nearest Power Plant Detail Water required by plant per day (MLD) Distance from STP (KM) Current source of water 30 5 Tapi river

19 Sewage Treatment Plant : Future Planning # Status (Under Construction / Under Planning 1 Under Construction 2 Under Construction 3 Under Construction 4 Under Planning* 5 Under Planning* Under construction / Under planning STP details Location Capacity Estimated (MLD) Cost (Cr.) Taken Under which scheme or by ULB itself Anjana 122 Amrut / Smart City Dindoli 167 Smart City / Surat Municipal Corportion Likely date of comple tion Remarks Dec Upgradation of existing STP & Augmentation of STP from 82.5 to 122 MLD Aug Upgradation of existing STP & Augmentation of STP from 66 to 167 MLD Bamroli 100 AMRUT Mission Feb Upgradation of existing STP Bhesan 100 AMRUT Mission Apr Upgradation of existing STP & Augmentation of STP from 100 to 200 MLD Singanpore 60 AMRUT Mission Apr Upgradation of existing STP & Augmentation of STP from 155 to 215 MLD * Next phase (tentative) (Subject to demand, feasibility & Land availability)

20 Thank you SURAT MUNICIPAL CORPORATION