Phosphorous removal from human urine using lateritic soil

Phosphorous (P) in human urine is among the macronutrients municipal wastewater that has exacerbated eutrophication of water bodies. Adsorption P from using cost effective, environmentally friendly, and efficient adsorbents considered as an attractive method can both mitigate problem augment already strained reserves. In present study adsorption capacity structural properties lateritic soil (LS), adsorbent for removal urine, was investigated XRF, SEM, TGA FTIR techniques. Batch experiments were conducted to determine various parameters such sorption rates, concentration, amount adsorbed at equilibrium. The experimental equilibrium data fitted Langmuir, Freundlich Dubinin-Radushkevich (D-R) isotherms. Also, factors influencing contact time, agitation speed, loading optimized response surface methodology (RSM). Based on D-R model, mean energy 1.313 × 10−2 kJ/mol obtained suggesting occurred through weak forces interaction. LS (qe) pH = 7.5 increased with initial concentration well time. Langmuir maximum found be 15.5 mg/g. RSM demonstrated time 60 min, speed 80 rpm, 0.1 g 25 mL optimum highest P, a desirability 0.919. results presented here show promising inexpensive effective urine.