Resource Recovery and Wastewater treatment

Transcription

1 Resource Recovery and Wastewater treatment Speaker: Dr.Srikanth Mutnuri, Associate Professor Applied Environmental Biotechnology Laboratory Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, K K Birla Goa Campus Goa, India E.mail:srikanth@goa.bits pilani.ac.in, srikanth.mutnuri@gmail.com

2 Introduction Total Wastewater generated in India = MLD Installed Sewage treatment capacity = MLD Only 23% of India has sewerage network

3 Introduction The Ministry of Drinking Water and Sanitation (MDWS), Govt. of India has three specific goals with respect to sanitation which are as follows: 1. End of open defecation - By 2017: 2. Adoption of Improved Hygiene Practices - By 2020: 3. Solid and Liquid Waste Management - By 2022 St.Inez creek in Goa

4 Background

5 Background

6 Project Idea Resource Recovery from Septage and Online monitoring

7 Where problems NEW have surfaced Urban - borewell (water source) and soak-pit /sewage proximity 1-9m apart 10yr exposure to 10 3 higher bacterial load/pathogen risk - higher coliform diarrhea and new pathogenic species, 15-20m travel though soil inadequate for safety mg/l NO 3 groundwater

8 Most STPs in Karnataka and S India are based on Surface Aerator based Aerated Lagoons 4m deep, 2d HRT for primary treatment and 1d HRT polishing pond (designed circa ).

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10 What Restoring we have Puttenhalli designed Lake started Bird Preserve in with Wastewater Yelahanka Puttenhalli Lake Restoration 2004 for CefiPRA but now mature Idea Committee with inputs from KS Sangunni /HN Chanakya, CST, IISc, Subramanya, GKVK Bangalore In.

11 Schematic of a HH level grey-water recycler

12 Partners HN Chanakya*,CST, IISc, Bengaluru MM Ghangrekar, Dept. Civil. Engg, IIT Kharagpur Srikanth Mutnuri, BITS Pilani, Goa Campus Arunkumar Thalla, NITK Surathkal, Karnataka Michel Torrijos, INRA, Narbonne, France Florent Chazarenc, (IMN, Nantes, France) Johann Kisser, Austria Eran Friedler (Technion,, Israel) Alexander Golberg, Tel Aviv University, Israel Dror Avisar, Tel Aviv University, Israel Korneel Rabaey, Ghent University, Belgium Ulo Mander, University of Tartu, Estonia Cláudia Cordovil, Instituto Superior de Agronomia, Portugal S Sarkar Tata-housing, Jamshedpur Vivek Halbe-Srishti Creations (builders) BORDA, India-Germany Philippe Michel, SCIRPE, France Goa State Infrastructrure Development Corporation Goa Pollution control board IFB washing machine Pvt ltd

13 About me Dr.Srikanth Mutnuri, Associate Professor Applied Environmental Biotechnology Laboratory Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, K K Birla Goa Campus Goa, India E.mail: srikanth@goa.bits pilani.ac.in, srikanth.mutnuri@gmail.com Webpage: pilani.ac.in/goa/srikanth/profile Expertise relevant to the call topic(s): Wastewater treatment, Anaerobic digestion, Resource recovery

14 BITS Pilani K K Birla Goa Campus APPLIED ENVIRONMENTAL BIOTECHNOLOGY LABORATORY Department of Biological Sciences PILOT SCALE INSTALLATIONS SRIKANTH MUTNURI

15 Horizontal Plug Flow Anaerobic Digester for Mess food Waste MESS (WASTE FOOD) Food waste Macerator room CAFETERIA (COOKING FOOD) Biogas bag and Compressor Room

16 Sequencing Batch Reactor (250 cu.m) 1 Size of the tank size of the tank = 4.5 m x 9.2 m diameter Total volume = 300 m 3 Working volume = 250 m 3 Minimum ht between the water level and the top of the tank = 0.74 m Surface of the tank = 64 m 2 2 Loading conditions Hypothesis: Volumetric loading rate = 0.35 kg of BOD5/m 3.d VSS concentration = 4 g/l Quantity of BOD5 treated in 250 m 3 = 87.5 kg BOD5/d

17 Vertical Flow Constructed Wetland (French system) for single household Stage 2 Stage 1 Storage Tank

18 Single Household Empowered Septic tank plant

19 Single Household Empowered Septic tank plant online monitoring

20 100 people equivalent Empowered septic tank plant Septic Tank EC Reactor Room Reservoirs Vertical Wetland

21 Open raceway pond for microalgae cultivation

22 Photobioreactor for microalgae cultivation

23 BIOGAS PLANT AT MADGAON FISH MARKET

24 Waste to Energy project - Anaerobic Co-Digestion of food Waste and Septage Input material Food waste : 10 to 15 metric tons per day (from 1350 Hotels) Blackwater : 10 to 20 m³ per day (from 200 community toilets) Volumes Digester : 1300 m³ including storage capacity (retention time is 35 days) Biogas generation: approx. 2,100 m³/per day for 2,140 m³ Biogas per day Combined Heat and Power Unit (CHP) 60 kw (24 hours per day) for Anaerobic Digester Plant 200 kw (15 hours per day) for external use (up to 3,000 kwh per day)

25 TERRA PRETA & PROM for improving agricultural productivity

26 Collaborators & Funding agencies

27 Start ups

28 THANK You