Textile dyeing effluent treatment in dye and allied industries using a synergistic microbial consortium

8,599 views

Published on

An optimized biological process of decolorizing effluents and wastewater/waste streams in dye and allied industries using a synergistic microbial consortium

Published in: Technology
1 Comment
18 Likes
Statistics
Notes
No Downloads
Views
Total views
8,599
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
3
Comments
1
Likes
18
Embeds 0
No embeds

No notes for slide

Textile dyeing effluent treatment in dye and allied industries using a synergistic microbial consortium

  1. 1. <ul><li>Microbion- Texdecol </li></ul><ul><li>Decolorizing Textile Dyeing effluent </li></ul><ul><li>An innovative Solution </li></ul>
  2. 2. <ul><li>A n optimized biological process of decolorizing effluents and wastewater/waste streams in dye and allied industries using a synergistic microbial consortium </li></ul><ul><li>Microbion-Texdecol </li></ul>
  3. 3. PREAMBLE <ul><li>Dye effluents and waste streams/ wastewaters are generally obtained as a result of manufacturing processes for the preparation of textiles/fabrics in a wide extent. The waste streams include varying organic and inorganic materials rendering to be unsuitable for reuse and undesirable for release into the biosphere. Wastewater containing dyes presents a serious environmental problem due to its high toxicity which leads to ground water and surface water pollution. Therefore the removal of the high stable dyes from the textile effluents is of prime importance. </li></ul><ul><li>Such dye effluents and wastewaters are characterized by their intense color, high chemical oxygen demand (COD), salinity and fluctuating pH which tend to various environmental and pollution problems when discharged untreated </li></ul>
  4. 4. Conventional treatment process <ul><li>Physico –chemical treatment + Biological </li></ul><ul><li> High chemical sludge </li></ul><ul><li>Not eco friendly </li></ul><ul><li>Low BOD, Low COD </li></ul><ul><li>No significant colour reduction. </li></ul><ul><li>Down stream RO process deficiency. </li></ul><ul><li>Chemical oxidation process: </li></ul><ul><li>Ozone treatment, Activated carbon filtration, Resin filters </li></ul><ul><li>High cost CAPEX. OPEX </li></ul><ul><li>Not suitable for all dyes. </li></ul><ul><li>The above mentioned are obvious opportunities and challenges for biological treatment methods to offer viable alternatives in treating dye-containing wastewater </li></ul>
  5. 5. Microbion –Texdecol solution <ul><li>Biological treatment- </li></ul><ul><li> 100% colour removal, </li></ul><ul><li> Low COD, Low BOD </li></ul><ul><li> efficient down stream RO operation </li></ul><ul><li> Very cost effective </li></ul><ul><li> No chemical sludge </li></ul><ul><li>low biological sludge </li></ul><ul><li>Microbion –Texdecol a consortium of special decolorizing microbes reduces color of textile dyeing effluent, degrading the dyestuff present along with other organic compounds bringing down COD and color. 80-85% color reduced in aerobic biological system followed by an organic coagulant to reduce color further. Totally decolorized water is taken for down stream process. </li></ul>
  6. 6. Treatment Technologies- Flow chart <ul><li>. </li></ul>Textile decolourization Existing Technology: Chemo biological Overflow Our Technology: Microbion -Texdecol Wash water Chemical Treat Biological Reverse osmosis To process Sludge Evaporation Effluent from Process Settling Dye Bath Evaporation Reject Water Wash water Biological Reverse osmosis To process Sludge Effluent from Process Settling Dye Bath Evaporation Reject Water Overflow
  7. 7. Microbion Texdecol –Solution @work Microbion Texdecol solution is successfully implemented in a 5 MLD common effluent treatment plant at Dodaballapur Bangalore. Equalization Tank
  8. 8. Aeration Tank during addition of TEXDECOL
  9. 9. Aeration Tank after addition of TEXDECOL
  10. 10. Secondary Clarifier
  11. 11. Treated Water Collection Tank
  12. 12. Sample at Lab Test
  13. 13. Advantages – A Comparison Benefits: Meeting TNPCB standards, increased out put in RO, evaporator out put increases, No additional capital investment in existing plants . Rs. 7/- per Kl Rs. 7/- per Kl Cost of Labour Rs. 35/- per Kl Rs. 55/- per Kl OPEX 1000 Kl/Day 4 crores 4.5 crores CAPEX 1000 Kl/Day 80% 70% Water Conservation 5000- 10000(depends on input) 5000- 10000 (depends on Input) TDS < 200 ppm 300-350 ppm COD < 100 units 600 units Color 7.5 – 8.0 7.5 – 8.0 pH Water Quality( RO Feed) Mechanical evaporators, turbo mist sprayers, Color reduction and no addition of inorganic salts to the RO Feed improves reject water handling. Evaporator efficiency increases. Down time reduced Mechanical evaporators, turbo mist sprayers, Energy intensive. Not eco friendly. Increases carbon foot print. Operational inefficiency. Reject water Series of filtration and Reverse osmosis. Reduces inorganic load on membrane process. Membrane out put increases by 5%. Increased output in recycling of water. Down time reduction Series of filtration and Reverse osmosis. Good quality water (Pre treatment) is a necessity for RO feed. Quality and quantity depends on input. Present practice of chemical treatment contributes to inorganic load, reduces RO performance over the years Water Recycling Special decolorizing microbes. 60-70% less bio sludge production For organic removal COD, BOD. No special microorganisms for Colour removal. Produces bio sludge Biological Treatment Primary Treatment No Primary Treatment required. Chemical sludge is 100% eliminated. Chemical precipitation for color removal. Hazardous sludge produced Treatment Process Microbion Tex decol Conventional Chemobilogical Parameters
  14. 14. For Further enquires and details Please mail to marketing@vnsenviro.com visit www.vnsenviro.com

×