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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