PRESENTATION FOR ADDITIONAL DETAILS FOR ENVIRONMENTAL CLEARANCE TO STATE LEVEL EXPERT APPRASIAL COMMITTEE FOR

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3 PRESENTATION FOR ADDITIONAL DETAILS FOR ENVIRONMENTAL CLEARANCE TO STATE LEVEL EXPERT APPRASIAL COMMITTEE FOR PROPOSED CONSTRUCTION BUILDING PROJECT OF NILA INFRASTRUCTURES LTD ( m 2 Built up Area) AT S. NO. 2, F.P. 223/P+221/P, T.P. 8, ASARWA, AHMEDABAD, GUJARAT PROPOSAL NO. SIA/GJ/NCP/71290/2017 1

4 1. Authentic supporting documents showing availability of the proposed FSI to the project. 2

5 2. Proposal for providing STP for treatment of sewage to be generated during the operation phase. Details of the Sewage Treatment Plant including its capacity, size of each unit, retention time, other technical parameters etc. along with the plan & budget allocation for its installation, operation & maintenance. Quality of treated sewage and application wise break-up of treated sewage quantity to be recycled / reused in flushing & green belt development, its location on the layout plan, STP sludge management plan etc. We have proposed STP for treatment of sewage to be generated during the operation phase as mention in slide no. 4 to 7 with details of the Sewage Treatment Plant including its capacity, size of each unit, retention time and other technical parameters etc.alongwiththe plan & budget allocation for its installation, operation & maintenance. Quality of treated sewage and application wise break up of treated sewage quantity to be recycled / reused in flushing & green belt development is mentioned in slide no.4. STP location on the layout plan in slide no. 8, STP sludge management plan in slide no

6 STP DETAILS DESIGN HIGHLIGHTS Source of sewage: The source of sewage is from toilets and kitchen, pantry. Drain lines for sewerage and pantry waste are planned right up to the sewage treatment area. Design Capacity: Sewage treatment Plant: Plant Capacity : 105 M³/day Flow to STP: 102 M³/day Raw Sewage Analysis for Design: Parameter Raw Sewage Black water Black water Treated sewage to STP, AMC Raw Sewage Gray water ph Suspended Solids 300 Mg/l BOD (5 days at Mg/l ºC) COD 400 Mg/l Oil &Grease Gray water Treated sewage to STP, AMC 4

7 STP UNITS Treatment Units: 1) Coarse bar screen chamber 2) Fine screen chamber 3) Aeration Tank 4) Secondary Settling Tank 5) Treated water Tank 6) Sludge Holding Tank 7) Sand Filter & Carbon Filter 8) Centrifuge 5

8 STP FLOW CHART Inlet T1 T2 T3 T4 AMC Drainage Line T12 T11 Inlet T5 T6 T7 T8 T9 Recycle Flushing Holding Tank T10 6

9 STP UNIT CAPACITY FOR BLACK WATER Unit No Unit Name Size in meter Capacity Retention Time T1 Coarse Bar Screen Chamber 1 x 0.5 x KL 0.4 hr. T2 Fine Bar Screen Chamber 1 x 0.5 x KL 0.4 hr. T3 Aeration Tank 3 x 2.0 x KL 14.4 hr. T4 Secondary Settling Tank 3 x 1.5 x KL 10.8 hr. STP UNIT CAPACITY FOR GRAY WATER Unit No Unit Name Size in meter Capacity Retention Time T5 Coarse Bar Screen Chamber 1 x 0.5 x KL 0.16 hr. T6 Aeration Tank 3 x 2.0 x KL 7.0 hr. T7 Secondary Settling Tank 3 x 2.0 x KL 14.4 hr. T8 Sand Filter 0.5 dia. x KL/Hr - T9 Carbon Filter 0.5 dia. x KL/Hr - T10 Sludge Holding Tank 1 x 1.0 x KL - T11 Centrifuge - 2 KL/Hr - T12 Final Holding Tank 2 x 2.0 x KL 4.0 hr. 7

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11 STP UNIT BUDGET Installation Cost Operation Cost Rs. 10 lacs Rs lacs 9

12 3.Revised water balance details considering the reuse of treated sewage for purposes like flushing, gardening etc. within premises. Source of Water will be supplied by AMC Sr. No. Purpose 1 Residential Water Consumpti on (KL/day) Waste water Generation (KL/day) Reuse Total water consumpti on after reuse Remarks 156 Unit x 6 X 135 Lit/day = KL/day 2 Other (Fire make up and Plantation) Grey water will be treated separately and reused in flushing and Gardening Total Mode of Disposal of Sewage : STP treated to AMC drainage line. 10

13 4. Proposal to provide Organic Waste Converter for converting biodegradable waste into the useful end product. Details of the proposed OWC including its type, capacity, characteristics, its location on the layout plan, end product management plan etc. should also be submitted. OWC Specification Type: Capacity: Characteristics. a. Nature: Solid b. Type: Organic fertilizer c. Content: Nutrition d. Organic Solids: 90% e. Moisture: Max. 10% We have mentioned the location of OWS in our lay out plan in slide no. 12 We shall use manure as end product in green belt development in premises. 11

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15 Proposed STP 96 sqm OWC 13

16 LAND DOCUMENTS 14

17 Lease Agreement Between AMC and Developer is under Process 15

18 THANK YOU 16