ETP
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ETP ETP Presentation Transcript

  • Coming Up..
    • Introduction
    • Where u get Effluent
    • Treatments
    • Explanation
    • After Treatment
    • Questions
    • Citations
    • ETP - Pollution
    • Necessity
    • Uses
    Introduction Umm… what is ETP?? Facts
    • Textile industry 1/3 rd of total export
    • Chemical Processing-70% pollution
  • Accumulation of Effluents
    • Sizing & Desizing
    • Bleaching
    • Dyeing & Printing
    • Scouring & Mercerizing
    Facts
    • Dyeing – most wastes
    • Effluents- 500 l- 8200 l per 1000kg of yarn/fabric
    • Internally used - 60%
    Whoov! One fabric, so many processes
  • Effluent Stages Parameter Gov’t Standards Before After ph 6.5 to 8.5 7-11 7.60 BOD 30 mg/lit 300 18 COD 100 mg/lit 600 90 Suspended solids 100 mg/lit 90 70 TDS Approx. 2100 mg/lit 3000 3000 Oil & Grease 10 mg/lit Not Defined Nil Sulphates Nil 1-2mg/lit Nil Chlorides 600 mg/lit 1250 500 Temperature 40°C 50°C approx. Not Defined Conductivity Zero 4000 4700 Color(units) 100 units 2000 Turibidity(fau) 15 180 10
  • Treatments (In Brief)
    • Primary
    • Secondary
    • Tertiary
    Facts COD & BOD is so confusing!!
    • Small/medium scale industry – no Tertiary
    • All process - continuous working
    • Cost- 40 Rs/m³
  • Arvind Mills Ltd. Santej, Plant Layout (Large scale) Primary Treatment Secondary Treatment Tertiary Treatment
  • PRIMARY TREATMENT (ANALYSIS)
    • Screening
    • Sedimentation
    • Equalization
    • Neutralization
    • Coagulation
    Processes Hmm.. Quite simple!!
  • SECONDARY PROCESS (IN DEPTH)
    • Activated sludge process
    • Oxidation ponds
    • Trickling filtration
    Processes
  • Activated sludge process
      • An aerobic treatment
      • Zoogleal masses
      • BOD-95%.
      • Color-80%
      • All times- 0.5mg/l oxygen
    Aerated basin, Vertical Spindle Facts Removes phosphate, ammonia, nitrogen, etc.
  • Trickling filtration
      • Biofilters or
      • Percolating filters
      • SS : 80 - 90%
      • BOD: 40-85%
      • Mostly used for cotton finishing wastes
  • Oxidation pond (waste stabilization ponds)
    • Bacteria/ flagellated protozoa
    • Algae
    • Photosynthesis
    • Economical
    • Suits tropical climates
  • TERTIARY PROCESS
    • Activated Carbon Adsorption
    • Chemical Coagulation & precipitation
    • Multimedia filtration
    • Reverse Osmosis
    Well.. Is the water clean now?? .. Still not fully!! TDS
  • Activated Carbon Adsorption
    • Removes:
      • Mineral oils
      • Yeasts
      • Odor etc..
    • Polar – Badly removed
    • Nonpolar - easily
    It is used to filter Vodka & Whiskey! 
  • Multimedia filtration
    • Mixed media filtration
    • Conventional gravity type/pressure filters
    u know? It’s the same thing in our Acquaguards
  • Reverse Osmosis
  • Any Questions Hmm! ETP is an interesting topic
    • Waste water
    • Pollution
    • Treatment
      • Primary
      • Secondary
      • Tertiary
    • Reuse/ Dumped
    Summary
  • INDUSTRY VISIT PICTURES
  •  
  •  
  • INLET OF EFFLUENTS
  • INLET OF EFFLUENTS
  • EFFLUENT STORAGE
  • EFFLUENT STORAGE
  • EFFLUENT STORAGE
  • SCREENING
  • ADDITION OF COAGULANTS
  • EFFLUENT PRECIPITATION TANK
  • REMOVAL OF STARCH
  • VIEW
  • REMOVAL OF SLUDGE
  • REMOVAL OF SLUDGE
  •  
  •  
  • CHLORINE CYLINDER
  • PRE-OSMOSIS TREATMENT
  • OSMOSIS TREATMENT
  • PRESSURE TRACKING METER
  • Citations
    • Websites
      • www.lenntech.com
      • www.nanoscienceworks.org
      • www.fibre2fashion.com
    • Textbooks
    • Manivasakan. N, “Treatment of Textile Processing Effluents”, Sakthi publications, Coimbatore, 1995.
    • Takashi Asano, “ Wastewater Reclamation and Reuse”, CRC Press,1998
    Mr. Nilesh Mulya Mr.Shubhanish Malhotra.. etc
    • ThankYou!!!