Improvement of the Treatment Performance of the Conventional Wastewater Treatment Plant: A Case Study of the Central Wastewater Treatment Plant in Ulaanbaatar, Mongolia

This study is carried out within the framework of requirements ensuring reliable operation Central Wastewater Treatment Plant Ulaanbaatar to increase treatment performance and mitigate adverse impacts current poor on nature ecology. The dynamic influent was studied in order find best-suited solution as a means improvement for WWTP. As an immediate fast-to-build solution, equalization tank pre-aeration facilities were proposed. positive effect biological stage overall estimated both theoretically empirically. results showed that BOD5 TSS will be increased by up 30% 10%, respectively. Furthermore, high fluctuation problems central WWTP terms hydraulic pollution load positively affected intervention, eliminating main cause performance.