Nutrient Recovery from Poultry Wastewater by Modified Biochar: An Optimization Study

In this work, we proposed and tested a method for utilizing agricultural waste alum sludge as an effective adsorbent to treat poultry wastewater. The product was also targeted be used fertilizer agriculture. Modified biochar produced from crop residues, water treatment plant, magnesium salt. characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller analysis, diffraction. adsorption of ammonia phosphate in both synthetic actual wastewater the conducted. effect experimental conditions such N P ratio, initial concentrations ammonium phosphate, pH, amount on capacity were investigated. results experiment showed that best capacities 60.64 mgNH4+-N/g 66.24 mgPO43--P/g, which at optimum ratio 1.25, concentration 90 mg/L, pH 6, mass 0.105 g. These create opportunity production slow-release residues ecological agriculture future.