SOIL BIOTECHNOLOGY/ SBT SYSTEMAll India Distillery Association, 26-27th February, 2011 Dr. Avinash M Kadam (Ph.D, IIT Bombay) Managing Director SUGAM PARYAVARAN VIKALP PVT LTD www.sugam.in
What we do?A. Market & implement IIT Bombay patented technology “Soil Biofilter Technology” i.e. SBTB. Apply SBT for a. Sewage Treatment & Recycling b. Effluent Treatment & Recycling c. Grey Water Recycling d. Water Treatment & Recycling www.sugam.in
What is SBT? Developed by IIT Bombay during 1988 – 2001 Technology patented in USA and India Evergreen biological purification engine Process uses formulated media, culture & additive to achieve desired water quality www.sugam.in
Technology Credentials1. Indigenously developed by IIT Bombay2. Covered under US & Indian Patent3. “Best innovation” award by Siemens –Water4. “One of the four best innovations” – Ministry of External Affairs, GOI5. Listed by Ministry of Defense for wastewater recycling6. Already in the domain of MCGM, KDMC etc.
Carbon cycle CO2 in the Atmosphere6 750 45+45 110Photosynthesis 40-60 Respiration (1-10 y) 90 Plants Animals CO2 4,000 500 100-150 Live 1-5 (50 y) (2 y) Dead carbon 750 (0.2y) Dead Organics in Soil (1 y) 50 - 65 50 18 Fossil Dead Organics Holdups 1015g per yr Fuels Reserve in Soil Fluxes 1015g per yr 4,000 1,576 (300 y) Global Carbon Cycle (Meilli, 1995)
ENERGY CONSUMPTION IN DIFFERENT HABITATS 1. Water 500 kJ/g live C. yr 2. Land 3 kJ/g live C.yr
SCHEMATIC OF WATER RENOVATION Recycle (vr ) Feed (vf ) Reactor C1 Discharge (vf ) C2
What is SBT System? MediaCulture Media eCultur Soil SBT Biotechnology e AdditivPlantation Additives tion Planta
USP It provides primary, secondary and tertiary treatment all in one unit; in a single evergreen facility open to atmosphere. It is very simple to operate, maintain. It does not require skilled man-power. It is cost competitive particular with reference to O&M cost. No pre-treatment No chemical usage Absence of any moving part Odour-free Low energy requirement and Green environment are its unique features.
What we can process?1.Raw Water slurry2. Air scrubbing3. Leachates of solids4. Waste water - Distillery spent leese/condensate treatment - Sugar Effluent - Ammoniacal-N containing Fertilizer Effluent - VOCs - Textile waste water - Dairy wastewater - Printing spent ink wash effluent Treatment - Industrial dye effluent treatment - Coffee Effluent treatment
VARIOUS TECHNOLOGICAL OPTION- CONVENTIONAL AEROBIC TREATMENT- CONVENTIONAL ANAEROBIC TREATMENT- CONVENTIONAL AEROBIC TREATMENT FOLLOWED BYMEMBRANE TECHNOLOGIES- CONVENTIONAL ANAEROBIC TREATMENT FOLLOWED BYMEMBRANE TECHNOLOGIES- MEMBRANE TECHNOLOGIES ( RO – MBR) ALONE
An Exercise with Distillery Process Condensate recycling• Location : Rajarambapu Patil SSK Ltd Walva, Islampur, Dist.Sangli, MS, INDIA• Sugarcane Crushing : 12000 TCD/day• Distillery production : 100 cum/d• Electricity export to grid: 7 MW/day
Plant summaryItem SpecificationCapacity. 25 KL/dayArea Existing Tank (100 sqm)Duration of Operation. 12 hours per dayRate of Sewage Input. 2.5 cum /hourOutput water 24 kL Cooling make up andOutput Water Quality fermentation make up
Schematic of the process pH OzonationRaw adjustmentTank (10 ppm) with lime Settling (0.5 hr) Bioreactor Recycling Discharge/ Recycle
Result means…….Water Scenario at RBSSK:• Water for Dilution with Molasses : 1000 cum/d• Water for condensing, cooling, and blow down : 460 cum/d• D.M. water requirement for dilution in New Plant : 190 cum/d• Soft water requirement for Vacuum pump, Alcohol scrubber and F.O. Decanter : 190 cum/d• D.M. water requirement for dilution in ENA plant : 120 cum/d TOTAL: 1960 cum/d
Result means…….Water for recycling: >720 cum/d (out of 750 cum/d) SBT Output water Disinfection Softener Water for Dilution in Water for Fermentor cooling
Dr. Avinash M. Kadam Mr. Kiran KotianPh.D (Chem Engg., IIT Bombay) (Head Projects)firstname.lastname@example.org Email: email@example.comPhone: +91 9769838718 Phone: +91 9833663346 +91 9833663346 www.sugam.in
We do ……………..• Design and Turnkey execution of SBT and SBT plants for STP and ETP applications• Retrofit of pre-existing STP/ETPs with SBT systems• Design of zero discharge air scrubbers for removal of waste noxious gases (Sulphur, NOx and organic pollutants from Industrial processes).• Design Consultancy for Water and Waste Streams Auditing, targeting Zero Discharge Norms• Energy Auditing and Pinch analysis of heat sources to reduce energy consumption.• Distillery Process Condensate Treatment• Printing spent ink wash effluent Treatment• Industrial dye effluent treatment• Coffee Effluent treatment www.sugam.in
Components of CSF Media Influent Waste Water Media: Respiration Plantation: Photosynthesis (CH2ONxPySzKy)n+nO2+nH2O = nCO2+2n H2O+ Mineral + Energy nCO2+ 2n H2O+ (N,P,S,K) + NH4+NO2 = N2+H2O Sunlight= [CH2ONxPySzKy]n+ 4C3H7O2NS + 8H20 = 4CH3COOH + nO2+ H2O 4CO2 + 4NH3 3CH3COOH + CO2 = 4CH4 + 3CO2 + 2H2O Constructed Soil FilterN2+H2O = (CSF) Media Natural Formulation O2 NH3+O2 Additives: Weathering Microorganisms (Task Force) CO2 + H2O = HCO3 - + H+ + Geophagus worm Primary mineral + CO2 + H2O = M+n + (Controls ecology) nHCO3 -+ Soil/clay/sand Clear Effluent
Why Weathered Environment ? Microbial Diversity (Curtis & Sloan, Science 309, 2005) Soil : 1012-1016 cells/g soil; 105-106 genera Oceans: 160 per mL; Water : 103 genera Soil: 6400-38000 per g; Sewage: 70 per mL Energetic (ca.) Land : 3.2 kJ/g.live C.yr Water : 700 kJ/g.live C.yr Oxygen diffusion coefficient (Perry’s Handbook, 1999) Soil : 10-5 m2s-1 Water : 10-9 m2s-1 Solubility of Oxygen in water is very low (0.3 millimol/L at 20 0C) Immobilization of pollutant; hence high reaction rates Vs local pollution becomes global; low reaction rates due to dilution Heterogenous system; housing multiple microenvironment viz. oxic, anoxic and anaerobic within same niche Vs only one within the same niche..
PERFORMANCE VARIATION OF SBT PLANT : 20 20 18 COD SS DO BOD Ammonical-N pH 18 16 16 14 14 12 12 pHmg/l 10 10 8 8 6 6 4 4 2 2 0 0 June July August September October November December www.sugam.in
Layout for processing of Wastewater www.sugam.in
Media & Culture• Underdrain:- Stone rubble of various sizes ranging upto Gravel (200.0-2.0 mm), Very coarse sand (1.0-2.0 mm), Coarse sand (0.5-1.0 mm), Medium sand (0.25-0.5 mm), Fine sand (0.1-0.25 mm)• Media:- Formulated from soil as required and primary minerals of suitable particle size and composition• Culture:- Geophagus (Soil living) worm Pheretima elongata and bacterial culture from natural sources containing bacteria capable of processing cellulose, lignin, starch, protein, also nitrifying and denitrifying organisms. Anaerobic organisms for methanogenesis. For industrial wastes, development of appropriate culture required• Additives:- Formulated from natural materials of suitable particle size and composition to provide sites for respiration, CO2 capture• Bioindicators:- Green plants particularly with tap root system