Prof HS Shankar - Chemical Engineering, IIT Bombay

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Respiration MAJOR CHEMICAL REACTIONS AT WORK (CH 2 ON x P y S z K y Q) n + nO 2 + nH 2 O + Micro-organisms = Photosynthesis nCO 2 + 2nH 2 O + Mineral (N, P, S, K,Q) + Energy nCO 2 + 2nH 2 O + Minerals (N,P, S,K,Q) + Sunlight = <strong>Chemical</strong> Mineral weathering CO 2 + H 2 O = HCO 3 - + H + [CH 2 ON x P y S z K y Q] n + nO 2 + nH 2 O Primary mineral + CO 2 + H 2 O = M +n + n HCO 3 - + soil/sand/clay
BIOMASS YIELD, MINERAL CONTENT, NITROGEN CONTENT, WATER CONSUMPTION FOR SOME CROPS Crop Mineral % DM N % DM Water ton / ton DM Yield ton DM / ha Subabul 0.5 – 0.8 Small 50 20 Sugarcane 1.5 – 2.0 Small 400 18 Corn 5.0 – 6.0 0.3 – 0.5 200 14 Wheat 9 – 11 0.3 – 0.5 600 12 paddy 18 - 20 0.3 – 0.5 1000 9 DM – Dry Matter * * Yield is total biomass-grain, straw etc.
Page 1 and 2: SOIL BIOTECHNOLOGY OF IIT, BOMBAY P
Page 3 and 4: A natural water body
Page 5 and 6: A natural water body in in the proc
Page 7 and 8: 6 Photosynthesis Fossil Fuels 4,000
Page 9 and 10: SCHEMATIC OF WATER RENOVATION Recyc
Page 11: LARGE SCALE FACILITY FOR SEWAGE REN
Page 15 and 16: The trinity - showing importance of
Page 17 and 18: Energy efficiency 10 9 8 7 6 5 4 3
Page 19 and 20: ECO-ENERGETICS OF AN EARTHWORM (Lav
Page 21 and 22: A picture of of red worms - r selec
Page 23 and 24: TWO CHANNEL MODEL α = fraction of
Page 25 and 26: THEORETICALLY CALCULATED PARAMETERS
Page 27 and 28: EXPERIMENT AND THEORETICAL PARAMETE
Page 29 and 30: Plot Plot of of normalized concentr
Page 31 and 32: Dissolved O 2 , mg/L. 7 6 5 4 3 2 1
Page 33 and 34: COD (mg/l) 600 500 400 300 200 100
Page 35 and 36: 1. Continuity Equation 2. Momentum
Page 37 and 38: COD ( mg/L ) 200 180 160 140 120 10
Page 39 and 40: DISTILLERY SPENT WASH Before SBT Pr
Page 41 and 42: ARSENIC REMOVAL BY SOIL FILTER •
Page 43 and 44: ARSENIC REMOVAL IN SOIL FILTER SYST
Page 45 and 46: LAY OUT OF SBT MEDIA
Page 47 and 48: SBT PLANT TOP VIEW
Page 49 and 50: SBT PLANT 3MLD Sewage purification
Page 51 and 52: PROCESS FEATURES • Very low energ
Page 53 and 54: SBT PLANT 3MLD Sewage purification
Page 55 and 56: SBT PLANT Renovation of of colony s
Page 57 and 58: Colony sewage treatment showing unt
Page 59 and 60: SBT PLANT Retrofitting of of idle a
Page 61 and 62: OPERATING FACILITIES • Bombay Pre
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ORGANIC RESIDUE PROCESSING 1 m Raw
Page 65 and 66:
Processing chicken offals
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Chickoo plant affected by by fungal
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ECONOMICS FOR SEWAGE TREATMENT Item
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APPLICATIONS • Rain water harvest
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THANK YOU !
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Intensity 1000 800 600 400 200 0 XR
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Intensity 900 800 700 600 500 400 3
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Intensity 1400 1200 1000 800 600 40
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Intensity 1350 1250 1150 1050 950 8
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PATENTS AND PUBLICATIONS 1. US Pate
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MEDIA AND CULTURE US Patent: Proces
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AS (III) TO AS (V) CONVERSION IN SO
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Prof HS Shankar - Chemical Engineering, IIT Bombay

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