Technological analysis of liquid waste parameters in treatment system for phosphorus production

¹ D. Mendeleev University of Chemical Technology of Russia, Miusskaya, 125047 Russia
² Branch of the National Research University Moscow Power Engineering Institute in Smolensk, Energeticheskiy, Smolensk, 214013, Russia

^* Corresponding author: fundukoff@mail.ru

Abstract

This study considers the problem of analyzing a complex hierarchical system of phosphorus production wastewater treatment, which is characterized by considering the process of sedimentation of elemental phosphorus sludge particles and mechanical impurities. The study presents a framework for decision-making on the purification of wastewater from phosphorus production, which is contaminated with toxic impurities and must meet sanitary norms. The framework considers the reagents introduced, as well as the increased mineralization of water, which cannot be discharged into the water body for ecological reasons. Instead, it is reused in production. It is demonstrated that for mechanical treatment of sewage from elemental phosphorus and suspended solids, as well as to improve sedimentation of particles, iron sulphate is used as a coagulant. The action of this coagulant is similar to that of sulphuric acid aluminum, which is widely used for water treatment. Thus, a complex engineering approach is presented for a complex system of phosphorus production wastewater treatment.