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NEW MATERIALS FOR WATER PURIFICATION FROM NATURAL ORGANIC MATTERS

NATIONAL ACADEMY OF SCIENCES OF BELARUS INSTITUTE OF PHYSICAL ORGANIC CHEMISTRY. NEW MATERIALS FOR WATER PURIFICATION FROM NATURAL ORGANIC MATTERS. G.V. Medyak, V.I. Sokolova, A.A. Shunkevich, A.V. Bildyukevich*. THE AIMS OF TH Е RESEARCH ARE:.

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NEW MATERIALS FOR WATER PURIFICATION FROM NATURAL ORGANIC MATTERS

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  1. NATIONAL ACADEMY OF SCIENCES OF BELARUS INSTITUTE OF PHYSICAL ORGANIC CHEMISTRY NEW MATERIALS FOR WATER PURIFICATION FROM NATURAL ORGANIC MATTERS G.V. Medyak, V.I. Sokolova, A.A. Shunkevich, A.V. Bildyukevich*

  2. THE AIMS OF THЕ RESEARCH ARE: • COMPARATIVE STUDY OF GRANULAR ORGANIC SCAVENGERS AND FIBAN FIBROUS IONEXCHANGERS IN SURFACE WATER PURIFICATION FROM NATURAL ORGANIC MATTERS (NOM) • DEVELOPMENT OF NEW PLANT DESIGN ACCORDING TO PROPERTIES OF NEW MATERIALS

  3. CHEMICALY ACTIVE TEXTILE • MATERIALS FIBAN ADVANTAGES: • HIGH SPEED OF ION EXCHANGE, SORPTION AND CATALYTIC PROCESSES • POSSIBILITY TO USETHIN (2-6 CM) FILTERING LAYERS • HIGH FLOW RATE • HIGHCHEMICAL RESISTANCE AND OSMOTIC STABILITY • POSSIBILITY OF MULTIPLE REGENERATIONS Comparison of the ordinary granular and fibrous ion exchangers • APPLICATIONS: • AIR PURIFICATION FROM TOXIC IMPURITIES IN INDUSTRY AND AGRICULTURE; • SUPERFINE AIR PURIFICATION IN ELECTRONICS; • INDIVIDUAL PROTECTIVE MEANS FOR HUMANS SKIN AND LUNGS; • WATER PURIFICATION FROM HEAVY METALS, NITRATES, ARSENIC, ACIDS, DRINKING WARER PRODUCTION.

  4. TEXTILE FORMS OF FIBROUSION EXCHANGERS Yarnand cartridges Nonwoven materials Staple

  5. MAIN CHARACTERISTICS OF ION EXCHANGERS PS – polystyrene, DVB – divinylbenzene, PA – polyacrylicmatrix, PAN – polyacrylonitrile

  6. EXPERIMENTAL • Water purification from NOM (humic and fulvic acids) was carried out using ion exchangers FIBAN and strong-base anion exchangers Purolite and Amberlite, recommended for water purification from organic matters • All tests were carried out in dynamic conditions: a column inner diameter 1.2 cm, a bed height 4-5 cm, 1.2 g of dried to constant mass granular or finely cut fibrous ion exchangers • All ion exchangers were transformed into Cl-form • The maximum COD value in the purified water was considered to be 3 mg О/l.

  7. WATER SOURCE* The Polota The Western Dvina The Svisloch BELARUS *AFTER PRETREATMENT BY ULTRAFILTRATION

  8. BREAKTHROUGH CURVES OF NOM FOR FIBROUS AND GRANULAR ION EXCHANGERS IN PROCESS OF WATERPURIFICATION B The Western Dvina river flow rate 72-80 BV/hour TheSvislochriver flow rate 184-197BV/hour TheSvislochriver flow rate 369-393BV/hour 1 – FIBAN А-5, 2 – Purolite A-860S, 3 – FIBAN A-6, 4 – FIBAN A-7 Granular ion exchanger Purolite A-860S can be comparative to fibrous ion exchangers FIBAN under the flow rate 80 BV/h, but when the flow rate is increased in 2.5 and 5 times, the breakthrough of organic matters already occurs in the first portion of effluent

  9. RESULTS OF PURIFICATION OF WATER FROM THE POLOTA AND THE SVISLOCH RIVERS FROM NOM BY FIBROUS AND GRANULAR ANION EXCHANGERS

  10. BREAKTHROUGH CURVES (A) AND SORPTION HISTOGRAMS (B) OF NOM ONTO FIBROUS ION EXCHANGER FIBAN A-5W IN CYCLES 1 - 5 Color, degree А B Color, degree 1 2 5 cycle ВV

  11. THE MAIN ADVANTAGES OF FIBROUS ION EXCHANGERS FIBAN FOR WATER TREATMENT: • High speed of sorption and desorption of NOM • Deep water purification from NOM (up to COD 2-3 mg О/l) at very high flow rates • Thin layers of ion exchange materials • Large filtration area in one apparatus • New constructional ideas using different textile forms of ion exchangers: staple, nonwoven materials, yarn, etc. THESE ADVANTAGES OF FIBROUS FIBAN ION EXCHANGERS MAKE THEM PROMISING FOR WATER PURIFICATION FROM NOM IN DIFFERENT BRANCHES OF INDUSTRY

  12. APPLICATION OF FIBAN ION EXCHANGERS IN VARIOUS TEXTILE FORMS: STAPLE, NONWOVEN MATERIALS AND YARN Cartridges made from FIBAN A-1 yarn and nonwoven materials Filter cartridge made from FIBAN A-5W staple

  13. RESULTS OF THE POLOTA RIVER WATER PURIFICATION * up to COD = 3 mgО/l

  14. DESIGN OF THE INDUSTRIAL ION EXCHANGE MODULE STRIKER PEFORATED INNER TUBE FIBAN A-5 NONWOVEN MATERIAL SPACER FILTER SHELL CLAMP Shell head

  15. RESULTS OF PURIFICATION OF THE INPUT WATER AT POLOTSK HPP BY HYBRID PROCESS: ULTRAFILTRATION / ION EXCHANGE THE HYBRID PROCESS OF INPUT WATER PURIFICATION WAS SUGGESTED AND TESTED AT POLOTSK HPP. THE PROCESS INCLUDES DEAD-END ULTRAFILTRATION AND SORPTION BY STRONG-BASE FIBROUS ION EXCHANGER

  16. DRAFT PROJECT OF THE INDUSTRIAL INSTALLATION BASED ON THE CREATED ELEMENT BASE WATER PURIFICATION PILOT PLANT

  17. THANK YOU FOR YOUR ATTENTION

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