Study on Rajamangala University of Technology PhraNakhon cafeteria wastewater treatment in alternating flooding and drying soil with 3 plant species system

Abstract

The experiment was in a type of 4 experimental wells with the size of width x length x height was equal to 0.5x1x 0.5 meters including the experimental well which had plants of Colocasiaesculenta (L.)Schott, PandanusamaryllifoliusRoxb and Canna indica Linn, and the rest was the control well without any plants. The time period of Alternating 5 days flooding and 2 days drying Soil. The parameter studied included BOD value, suspended solids, Total KjeldahlNitrogen, Total Phosphorus, pH and Oil and Grease. The research result found that the experimental well which had Colocasiaesculenta (L.)Schott, PandanusamaryllifoliusRoxb and Canna indica Linn had the effectiveness in wastewater treatment higher than the control well without any plants. After treatment with the control well without any plants the experimental which had plants of Colocasiaesculenta (L.)Schott ,PandanusamaryllifoliusRoxb and Canna indicaLinn with the romoval percentage of BOD value at 22.66, 69.93, 63.48 and 76.37 respectively.Suspended Solids at 22.66, 69.93, 63.48 and 76.37 respectively.TotalKjeldahl Nitrogen at 26.41, 68.67, 64.21 and 72.99 respectively.Total Phosphorus at 52.26, 81.69,75.73and79.88respectively.pHat6.42, 6.55,6.64and 6.88 respectively.Oil and Grease at 62.08, 78.75, 76.47 and 80.39respectively.