Incorporating food waste into anaerobic digesters can save money for wastewater treatment systems. These include lower energy expenses from on-site power generation and a tipping fee for accepting food waste. As we all know, it produced methane in anaerobic digesters, therefore it can be sold to companies for profit. It is a profitable treatment system because the high-quality fertilizers produced after wastewater treatment are a necessary component of agriculture, thus they are in high demand and help the company generate cash.