“Water Quality Management And Strategies For Recycle And Reuse – INDIA WATER WEEK - 2016 S4: Water And Health – Managing Water Quality “Water Quality Management And Strategies For Recycle And Reuse – Dholera A Case Study” April 6, 2016 Presenter: Ms. Dharti Thakar AECOM India Pvt Ltd

Overview of the Presentation Overview Of Dholera Special Investment Region (DSIR) Dholera Special Investment Region (DSIR) Implementation Strategy Water Demand for DSIR Interlinking Of Treated Effluents From Treatment Plants Potable and Recycled Water Quality- Benchmarks Water Quality Monitoring System in DSIR Conclusion Page 2

Dholera – Overview 06HRS 1.5HRS 04HRS 15MIN 02HRS Dedicated Fright Corridor (DMIC) 150 km Ahmedabad 100 km 50 km Vadodara 06HRS Mundra Port Rajkot Dholera 1.5HRS DFC Project under DMIC corridor DMIC First phase – 8 nodes Dholera is one of the biggest node 04HRS Pipava Port Surat 15MIN Dholera Airport 02HRS Ahmedabad Airport

Dholera – Key Projections Resident population in DSIR 2.0 million Area outside CRZ Total Area 58085 Ha (580 sq. Kms) 91,970 Ha (920 sq km) Total Jobs in DSIR 827 Thousand Area under CRZ 33,885 Ha (340 sq. Kms)

Dholera Implementation Strategy Dholera SIR (TP1 to TP6) DSIR Phase I (TP1 & TP2) Activation Area 422 Sq Km 153 Sq Km 22.54 Sq Km

Water Demand for DSIR Demands Phase I (MLD) Phase II Phase III Phases I+II+III Total Water Demand 277 361 260 898 Total water demand that can be met with recycled water 187 236 176 600 Total Potable Water Demand 90 125 85 300

Singapore & California Potable & Recycled Water Quality- Benchmarks POTABLE WATER QUALITY Parameter Benchmark DSIR standards Turbidity, NTU Bristol & California <1 TDS (mg/l) Hongkong 61 <150 Total Coliform (counts in 100 ml) RECYCLED WATER QUALITY Parameter Benchmark DSIR standards a. Turbidity (NTU) Singapore & California <2 b. pH Singapore 6.8-7.3 6.5-8.5 c. BOD5 (mg/l) <5 d. TSS (mg/l) California e. Ammonical Nitrogen f. Total Nitrogen <10 g. Total Phosphorus <1 h. TDS(mg/l) Hong Kong <1000 <500 j. Faecal coliform (counts in 100 ml) ND k. Total Hardness <250

Interlinking of Treated Effluents from Treatment Plants Water Supply and Treatment Industrial water Supply Waste Water Treatment Raw water from SBC Secondary Treated Sewage from Ahmedabad STP& CETP in TP1 STP & CETP in TP2E STP in TP2W WTP in Dholera TTP in Dholera Recycled network Recycled network MBR in TP1 MBR in TP2E MBR in TP2W Excess Water Outfall Dist Network Consumer Collection network Page 8

Recycled Water Quality parameters (Tertiary Treated) Sl. No Parameters Value 1 Color, Hazen units, Max. 5 2 BOD5 (mg/l) <5 3 COD (mg/l) <50 4 Total Suspended Solids (mg/l) Oil and Grease Nil 6 Total nitrogen (mg/l) <10 7 Total Phosphorus (mg/l) <2 8 Odor Unobjectionable 9 Taste Agreeable 10 Turbidity, NTU, Max. 11 pH value 6.5 to 8.5 12 Total Hardness (as CaCO3) mg/l, 300 13 Iron (as Fe) mg/l, Max. 0.3 14 Chlorides (as Cl) mg/l, Max. 250 15 Residual, free chlorine ,mg/l, min. 0.2 16 Fluoride (as F) mg/l, max. 1.5 17 Dissolved solids mg/l, Max. 500 18 Calcium (as Ca) mg/l, Max. 75 19 Magnesium (as Mg) mg/l, Max. 30 20 Copper (as Cu) mg/l, Max. 0.05 21 Manganese (as Mn) mg/l, Max. 0.1 22 Sulphate (as SO4) mg/l, Max 200 23 Nitrate (as NO2) mg/l, Max. 24 Phenolic compounds 0.001 25 Mercury (as Hg) mg/l, Max 26 Cadmium (as Cd) mg/l, Max 0.01 27 Selenium (as Se) mg/l, Max 28 Lead (as Pb) mg/l, Max 29 Zinc (as Zn) mg/l, Max Anionic detergents (as MBAS) mg/l, max 31 Mineral oil mg/l, Max 32 Pesticides mg/l, Max Absent 33 Aluminium (as Al) mg/l, Max 0.03 34 Boron mg/l, Max

Water Quality Monitoring System for DSIR Display at Admin Bldg DCS at WTP Inlet of WTP Outlet of WTP Clear Water Reservoir Potable Water Transmission main MBR ESR Distribution network Outlet of STP and CETP MBR Outlet Inlet of MBR and ESR Recycled water distribution network Components Turbidity & pH at inlet & outlet of WTP Flow, turbidity, pH, residual chlorine and Aluminium at CWR Turbidity, Residual Chlorine at TM Flow, turbidity, pH& residual chlorine at MBR Flow, turbidity, pH& residual chlorine All recycled water quality parameters at outlet of STP and CETP All recycled water quality parameters at outlet of MBR Residual Chlorine at Inlet and Outlet of MBR Residual Chlorine at recycled water distribution network Quality Monitoring

Conclusion Fully SCADA equipped water supply system – From Source to Consumer end. All the metering done by way of smart meters and all the bills system generated. Integration of three treatment plants; STP, CETP and TTP to generate uniform treated water quality for different non potable usages. Integration of water management will ensure ZERO DISCHARGE for the development. This is possible through enforcement of the guidelines/regulations of General Development Control Regulations. DSIR is setting new benchmarks for developments for water quality management, water reuse and effective integration of potable and recycled water .

Development of Greenfield Smart City A Case Study THANK YOU

Potable Water Supply System for Phase-I Source Saurashtra Branch Canal Raw water transmission Total length – Approx. 100 km From Saurashtra Canal (SSNNL) Approx. 100 km WATER TREATEMENT PLANT (WTP) & Transmission to POTABLE WATER MASTER BALANCING RESERVOIRS (MBR-P) 150 MLD WTP with Conventional treatment with modular development Clariflocculator , Rapid Sand Gravity Filter Disinfection Clear water Reservoir (CWR) Potable water transmission main to MBR-P at TP level MBR-P at TP Level Potable water feeder main to Elevated service reservoir (ESR) Potable water gravity distribution system & Service connections Raw water Reservoir Water Treatment Plant Clear water reservoir Pipli Water Works SH-6/ CSR Water Treatment Plant Treated Potable water Length- 8.5 km, Master Balancing Reservoir at each TP Page 13

Wastewater Collection and Treatment System Phase-I Waste water Collection and Treatment Scheme Gravity and Pumping System Intermediate pumping stations Terminal Pumping Stations Treatment system – Domestic Sewage treatment through Sewage treatment plant (STP) Industrial Effluent treatment through common effluent treatment plant (CETP) Master Balancing Reservoir- Recycled Water at TP Level Recycled water feeder main to Recycled water Elevated service reservoir (ESR-R) Elevated Service Reservoir- Recycled Water Recycled water gravity distribution system & Service connections STP CETP STP STP MBR STP CETP CETP Transmission main to MBRs Page 14

Raw Sewage Quality Parameters (STP Inlet) Value Unit pH 6.5-8.5 mg/l Colour <20 Hazen Biochemical Oxygen demand ( BOD5 ) 250-300 Chemical Oxygen demand (COD) 500-600 Total suspended solids 300-350 P-alkalinity as CaCO3 Total alkalinity as CaCO3 300-400 Chlorides Total dissolved solids Sulphate 100-150 Total Kjeldahl Nitrogen (TKN) 45-50 Ammoniacal Nitrogen 35-40 Total Phosphorus 5-7 Hardness 250-350 Iron <1 Zinc Sulphide Coliforms Present   E-coli

Industrial Effluent Quality Parameters (CETP Inlet) Value Unit pH 5.5-9 mg/l Colour <100 Hazen Oil & Grease < 100 Mg/l Liquid Temperature (maximum) 450 C   Biochemical Oxygen demand ( BOD5 ) 500-600 Chemical Oxygen demand (COD) 1200-1500 Total suspended solids <500 P-alkalinity as CaCO3 Nil Total alkalinity as CaCO3 Chlorides Total dissolved solids <2100 Sulphate 400-500 Total Kjeldahl Nitrogen (TKN) Total Phosphorus <15 Hardness Coliforms Present E-coli

Tertiaryr Treatment Plant Supply of Secondary Treated Sewage from Vasna Vasna (Ahmedabad) Secondary treated Sewage transmission from Vasna Total length – 100 km Transmission line from Vasna TTP & Transmission to MBRs 1 TTP at TP-1 3 MBR-R at each TP Raw water Reservoir Tertiaryr Treatment Plant Clear water reservoir SH-6 Treatment Processes Flow and Quality Balancing Biological oxidation in attached growth bio reactor Coagulation- Flocculation & settling Filtration in GSF or PSF Disinfection Tertiary Treatment Plant Treated Potable water line to MBRs Recycle water distribution Part of TP road & Services Master Balancing Reservoir at each TP

Input Secondary Treated Wastewater Quality Parameters Value pH 5.5-9 Colour, (Hazen) <100 Oil & Grease,(mg/l) < 100 Liquid Temperature (maximum) 450 C Biochemical Oxygen demand ( BOD5 ), (mg/l) 500-600 Chemical Oxygen demand (COD) (mg/l) 1200-1500 Total suspended solids, (mg/l) <500 P-alkalinity as CaCO3,(mg/l) Nil Total alkalinity as CaCO3, (mg/l) Chlorides , (mg/l) Total dissolved solids, (mg/l) <2100 Sulphate, (mg/l) 400-500 Total Kjeldahl Nitrogen (TKN), (mg/l) Total Phosphorus, (mg/l) <15 Hardness, (mg/l) Coliforms Present E-coli

WATER MASS BALANCE DIAGRAM (START OF PHASE-I DEVELOPMENT)

WATER MASS BALANCE DIAGRAM (END OF PHASE-I DEVELOPMENT)