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TNAU Agritech Portal :: Special Technology
REED BED SYSTEM FOR TREATING INDUSTRIAL WASTEWATER

Introduction

  • Industries generate enormous amount of wastewater
  • Wastewaters are rich in toxic heavymetals and other hazardous chemicals
  • Indiscriminate disposal resulted in soil and water pollution
  • Current wastewater treatments are expensive
  • Reed bed system is an ecofriendly and cost effective method for treating industrial wastewaters

Reed Bed System :Integrates plants and geomaterials to remove (by absorption and adsorption) pollutants from wastewater

Typha
  • Cattail reed (Typha latifolia) is a perennial herbaceous plant effective in removing heavymetals and salts
  • Root exudates effectively immobilize heavy metals in the rhizosphere

Water hyacinth : Water hyacinth (Eichornia crassipes) effectively absorbs nitrate and phosphate besides heavymetals

Vermiculite : A hydrous, silicate mineral with high cation exchange capacity adsorbs large amounts of heavymetals

Advantages
  • Removes heavymetals 90-100% from industrial wastewater
  • Reduces BOD and COD (70-90%)
  • Reduces TDS (>90%)
  • Removes nitrate and phosphates (80-98%)
Applications : To treat wastewaters from Tanneries, Dye & Textile and Paper & Pulp industries
 


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