Overview
Liquid -Gas interphase reactions use sintered  spargers with tiny pores producing millions of tiny droplets  increasing the mass transfer surface area of reactions. Sintered spargers increase the mass transfer surface area almost 8-10 times then a drilled pipe sparger..


Design

Diva Envitec designs spargers with vacuum fused sintered metal tubes/plates. Static and Dynamic spargers are configured for effective sparging applications without having ant moving parts. The designs could be from a single element to manifolded multiple element system, Easy to install and very effective and  efficient gas/liquid contacting solutions are designed by Diva Envitec Pvt Ltd.

  •  Pore sizes of 0.5 – 200 μm availbale
  • Recommended pore size 3 – 10 μm with  no seams on porous body
  • Customized flow rates and design
  • Long life time
  • High flow rates
  • Ring sparger available (min dia. 200mm)
  • Broad range of alloys available
  • Customized fittings
  • Standard available

 

Operation

The gas is dispersed as a fine mist increasing the mass transfer area – so reactions when liquid-gas interphase reactions are carried out, the increased surface area enhances the reactions.

Technical Specifications

Sintered metallurgy which is vacuum fused bringing in ductility and strength for these applications. A wide range of metallurgy  spargers are constructed entirely of metal, to provide long-lasting operation even in  temperature range  as high as 450 Deg C under oxidizing conditions and 550 Deg C in reducing conditions. Wide range of materials including 316L , 304, stainless steel (standard), Nickel, Titanium,  Monel® 400, Inconel® 600, Hastelloy® C-22/C-276/X, 321  904L etc.

Applications and Uses

  • Aeration – Air sparging to meet BOD (Biological Oxygen Demand) on waste stream.
  • Agitation – Air injection for mixing liquids in a vessel.
  • Bioremediation – Air sparging to stimulate growth of bacteria for hazardous waste treatment.
  • Carbonation – CO2 sparging for carbonated  beverages and beer.
  • Chlorine bleaching – Chlorine sparging for bleaching pulp in manufacture of paper.
  • Column flotation – Air sparging for coal flotation, and other separations of solids.
  • Dewatering – Nitrogen sparging to remove entrained water from motor oil.
  • Fermentation – Oxygen or air sparging to enhance cell growth in fermentation reactions.
  • Gas/liquid reactions – Sparging air, oxygen, or other gases into reactors for improved performance.
  • Hydrogenation – Hydrogen sparging for a broad spectrum of chemical hydrogenation reactions.
  • Oil flotation – Air or natural gas sparging for oil removal from produced water from oil wells.
  • Oxygen bleaching – Oxygen sparging for bleaching pulp in manufacture of paper.
  • Oxygen stripping – Nitrogen sparging to remove oxygen from edible oils, wine, and juices.
  • Blanketing in Storage tanks
  • Oxygenation – Oxygen sparging in fish farming for significant stimulation of fish growth.
  • Ozonation – Ozone sparging to sanitize ultrapure water systems in pharmaceutical plants.
  • pH control – CO2 or NH3 sparging to adjust pH in waste or process streams.
  • Steam injection – Direct steam injection for efficient heating, and to eliminate “steam hammer.”
  • Volatiles stripping – Air sparging for removal of VOC (Volatile Organic Compounds) from waste streams.