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Presentation icdk bhu-water-final

  1. 1. “New Generation Catalysts for Facile Decontamination of Heavily Contaminated Industrial and Agricultural Waste-Water Targeted for the Cleaning of Ganga” TEAM 5. IN3 PhD Student, Dept. of Chemistry Banaras Hindu University E-mail: neerajkumarsah5@gmail.com Mr. Neeraj Kumar Sah PhD Student, Dept. of Bio-Chemistry Banaras Hindu University E-mail: rohit@bhu.ac.in Mr. Rohit Kumar Mr. Shankab Jyoti Phukan PhD Student, Dept. of Chemistry Banaras Hindu University E-mail: shankabphukan@gmail.com
  2. 2. Problem Industrial effluents 2
  3. 3. Electroplating Industry Printing Industry Textile 3
  4. 4. Serious threats to human health environments and natural ecosystem 4
  5. 5.  Consist of heavy metals like Cd, Hg, Pb, Cr(VI) etc.  Organic pollutants including Pesticides, biphenyls, fertilizers, hydrocarbon, phenols, detergents etc.  Anions like Fluoride, Arsenates, arsenites, Chromates, Cyanides etc.  Biological Pollutants like pathogenic bacteria, viruses, protozoa etc. 5
  6. 6. MINAMATA CAUSED BY MERCURY POISONING ARSENICOSIS CAUSED BY ARSENIC POISONING FLUOROSIS CAUSED BY FLUORIDE POISONING Fluorosis 6
  7. 7. Hodgkin lymphoma Prostate Cancer Hormonal Imbalance Kidney disease 7 7
  8. 8. Arsenate/Arsenite removal efficiency = 99% with average kD value of 30.2 nM from ITC Fluoride removal efficiency = 95% with corresponding kD value of 2.5 μM from ITC Methodology-I 8 II. Encapsulation of 30 AsO3 3-/AsO4 3- and 60 F- Inside the Nanocavity of Mo132-Keplerate: Unique Option For Upscaling to Real Life Applications. … to be Patented from Banaras Hindu University. OUR SOLUTIONS
  9. 9. Methodology-II 9 Na2S2O8 Mining Waste Decontamination using visible light CO2 hν Metal-Cyanide Contaminants Ref: European Patent-1371 I. Complete Photocatalytic Degradation of Toxic Substances Including Metal-Cyanides: Mo72Fe30 – Smaller Keplerate Wonders With Industrial Applicability OUR SOLUTIONS
  10. 10. Sewage water treatment Entry No. Compound name Main Hazard Amount taken (ppm) /state Total amount of CO2 obtained (mg) Irradiatio n time (h, visible light) Minimum % of degra- dation Techniques used for detection 1 Urea (normal, 13C and 15N labelled) Human waste 2000 Solution 28.13 4 96.0 13CO2, 15N2 by GCMS 2 Uric acid Human waste 1500 Solution 35.14 8 89.5 CO2, N2 by GCMS; Kinetics studied by HPLC in soln. 3 Pharmaceuticals (Dichlofenac-Na-salt, Carbamezipine, Sulfomethaxole) Hospital waste 200 ppm each together in Solution 24.80 4 94.0 CO2, N2 by GCMS; Kinetics studied by HPLC in soln. 4 1,10-orthophenanthroline· HCl and its metal complexes Artificial Brighteners 1000 Solution 38.51 8 85.8 CO2, N2 by GCMS 5 ‘Gly-Gly-Gly’- tripeptide EtO-Gly-Gly-Gly-NH2· HCl Part of Proteins 1500 Solution 33.50 4 81.1 CO2, N2 by GCMS 6 Escherichia coli bacteria (The chemical composition for all bacteria is the same) Harmful 1000 Suspension 39.64 12 Mostly decom- posed CO2, N2 by GCMS 7 Benzene Carcinogenic 50 μL= 29.26 12 20.0 CO2 by GCMS 10
  11. 11. Sewage water treatment (Contd.) Entry No. Compound name Main Hazard Amount taken (ppm) /state Total amount of CO2 obtained (mL) Irradiation time (h, visible light) % of degrad- ation Techniques used for detection 8 Pyrene Carcinogenic 1000 Suspension 43.00 12 61.7 CO2 by GCMS 9 Acetonitrile Organic Solvent 50 μL= 1965 Solution 29.54 8 35.1 CO2, N2 by GCMS 10 K3[Fe(CN)6] Releases very toxic HCN 2500 Solution 35.43 8 89.4 CO2, N2 by GCMS 11 Decamethylcyclopenta -siloxane Silicone waste 0.1mL = 4790 Suspension 45.53 16 41.4 CO2 by GCMS 12 Silicone oil Hydrophobic contaminant 0.1mL = 4800 Suspension 27.3 18 23.9 CO2 by GCMS 13 Fe(III)-phthalocyanine chloride Natural dyes 1000 Suspension 40.76 12 87.4 CO2, N2 by GCMS 14 Hematoporphyrin· 2HCl Biomolecules 1000 Suspension 34.30 12 77.0 CO2, N2 by GCMS 15 16 Cationic Dyes like Methylene Blue Crystal violet Artificial dyes 1000 separately in solution 42.72 43.84 8 8 97.1 81.3 CO2, N2 by GCMS; Kinetics studied by HPLC and UV- Vis in solution 11
  12. 12. Sewage water treatment Entry No. Compound name Main Hazard Amount taken (ppm) /state Total amount of CO2 obtained (mg) Irradiat- ion time (h, visible light) Minimum % of degra- dation Techniques used for detection 17 Melamine ‘N’ rich irritants 2000 Solution 34.90 12 83.3 CO2, N2 by GCMS 18 Pentafluorophen ol ‘F’-rich irritants and corrosive 1500 Solution 36.56 8 85.0 CO2, N2 by GCMS; Kinetics studied by HPLC in soln. 19 p-nitro phenol NO2-compounds (Designed with the target for the degradation of common explosives) 1250 Solution 34.90 12 73.5 CO2, N2 by GCMS; Kinetics studied by HPLC in soln. 20 Triethanolamine Reducing organic compounds 50 μL= 2810 ppm Solution 41.60 8 42.0 CO2, N2 by GCMS 21 Methyl Viologen (paraquot) Common Herbicides Harmful to aquatic life 1000 Solution 31.50 12 76.6 CO2, N2 by GCMS 22 Catalase (Bovine) Enzymes 1000 Suspension 33.00 12 78.0 CO2, N2 by GCMS 23 Estradiol Hormones 1000 Solution 36.20 18 62.4 CO2 by GCMS
  13. 13. Sewage Water Treatment General Experimental Set-up for Batch Reactor After photo-degradation Before photo-degradation Preparation of the plant extract: A collection of plant leaves are extracted with mortar-pestle adding minimum amount of water. The extract was centrifuged for 10 min and the supernatant dark green extract was filtered through the porous membrane (0.45 μm) filter to obtain clear dark green solution. 20 mL of this solution was used directly for photo-degradation experiment. 13
  14. 14. Catalyst Immobilization Studies Preparation Tetraethylorthosilicate + dilute HCl Silica sol * Catalyst Binder sol Mo72Fe30 catalyst Carborundum Support Insolubility induced by overnight soaking of [Co(NH3)6]3+ solution Band gap = 3.05 eV Absorption maxima ~ 400 nm * A. Šuligoj, U. Černigoj, U. Lavrenčič Štangar, Patent SI 23585 A, 2012​. 14
  15. 15. Dye Degradation of Crystal Violet Upon Immobilization Starting Near the End Catalyst Immobilization Studies in Demo Flow Reactor Intermediate reactor view Original CV solution CV solution after degradation 15
  16. 16. Patent application in TU Berlin: Use of Keplerate type polyoxo- molybdates for decontaminating aquatic environments Dr. S. Garai, Martin Groβ, Prof. Dr. Michael Schwarze, Dr. Prashanth Menezes, Amitabha Acharya, Prof. Dr. Matthias Drieß, Prof. Dr. Reinhard Schomäcker 16 European/ 1371/ EP 17195084.3
  17. 17. Components Before Treatment (PPM) After Treatment (PPM) Phenol 843 15 Thiocyanates 153 1.2 Ammonium 350 486 COD 5600 1080 Field Trial at Visakha Steel Plant 17 … to be Patented from the Banaras Hindu University.
  18. 18.  The Keplerates with Thioglycolate or Thio- phosphate ligands will be prepared from Mo132-CO3 2- reactive intermediate.  The {Mo9O9}- type metallo- crown pores can be reversibly gated by the Guanidinium Cations which allows the confinement of the toxic heavy metal ions inside the "Soft" Core (CRYSTAL STRUCTURE). Hg2+/Cd2+/Pb2+ removal efficiency = 98%/94%/95% with average kD value of 21.5/105.2/56.8 μM from ITC respectively. III. Segregation of Toxic Heavy Metals Through Molecular Lock-Gate Mechanism: Scalable Field Test Is Our Best Bet. … to be Patented from Banaras Hindu University. Methodology-III 18 OUR SOLUTIONS
  19. 19. Our Flow Process Diagram 19 Abbreviations: SF : Sand Filter T : Tank MF : Micro-Filter P : Peristaltic Pump F : Filter EM : Electro-Magnet UV : Ultra-Violet Lamp O : Ozonized Oxygen Generator SRHV-M : Simultaneous Removal of Heavy Metal Column DECYN-T : Decontamination of Total Organic Pollutant Including Cyanide Column SRAS-F/Cr : Simultaneous Removal of Arsenic, Fluoride & Chromates column.
  20. 20. SWOT Analysis of our idea/demo  The Encapsulative isolation of the toxic substances and their reversible recovery is the major breakthrough in the domain of water purification.  The simultaneous removal of Arsenic and Fluoride through the same column is yet to be known in the current practice of waste-water decontamination and therefore is our major strength.  The complete degradation of organic pollutants under visible solar radiation is the main challenge, we would like to address through our Start-Up. 20
  21. 21. Scope for Commercialization  Our start-Up will target mostly the scaling up of our technology to the next levels to TRL 7/8. Currently we are at TRL 4/5.  The process design will be made completely a flow process rather than a batch process.  Our demo set-up will be initially targeted for 10 Litre/hour capacity which finally need to be upgraded to 1000 Litre/hour for the sake of large industrial applications.  The capital requirement for our venture will be about INR 20 lakhs while the cost for effective decontamination of toxic waste-water will be about 1-2 Rs. only.  Thereby the payback period of the capital expenditure will be about 6 months.  We are on the process to register our Start-Up in AIC-BHU: Green Keplerate Solutions Pvt. Ltd. 21
  22. 22. Thank you Inorganic Nano-Football Molecule Catalyst for your kind attention !!!

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