The removal of nutrients in sanitary landfill leachate / Munarita Mansor

The results obtained in the study showed that 45% ammonia-nitrogen were removed by 10% seed in the leachate and the removal percentage was increased to 81% by incorporating 5g granular activated carbon (GAC). In the dephosphatation study, 32% of phosphorus were removed by 10% seed and this was further enhanced to 78% with 5g GAC added. The above findings showed that after 21 days, sewage seeding and granular activated carbon have the potential to remove nitrogen and phosphorus. However, GAC when compared to sewage was more efficient in reducing the nutrient concentrations. The low nitrogen removal efficiency by 10% seed was probably due to the fact that high concentration of ammonia inhibits the nitrification process.