When it comes to nutrient recovery systems, the entire process of microbial fuel cell happens in a single chamber. Hence, a separate scenario is considered to evaluate its life cycle assessment. Pumping, aeration, and discharging are the major unit operations carried out in microbial fuel cell (MFC) process. On the other hand, chemical precipitation happens in a reactor equipped with agitator to ensure homogeneous mixing of the added chemical in the wastewater. Magnesium oxide or magnesium chloride was used in this process, wherein MgO reacts with N and P to form struvite . Producing struvite consumes energy for pumping, mixing, magnesium dosing, discharging, and drying unit operations.