Micro Plastics and Removal Methods in Wastewater Treatment Plants

摘要

Micro plastics come from different sources in wastewater treatment plants and the facilities are not designed to remove micro plastics.Despite this,there is removal of micro plastic in primary and secondary treatment processes.Studies have proven that wastewater treatment plants are a potential source of micro-plastic pollution for freshwater environments.Although there is a high rate of removal efficiency,considering the discharge in large volumes,there is micro plastic pollution for the receiving environments.In addition,as a result of reuse of treatment sludge as fertilizer,MPs kept in the sludge cause soil pollution.The effective removal of micro plastics varies according to the advanced treatment technologies applied in tertiary treatment.When the studies are examined,it is seen that the highest efficiency in the removal of micro plastics is with Membrane Bioreactors.The selection of advanced treatment technologies that ensure the proper removal of micro plastics in the design of treatment plants can be an effective method of reducing micro plastic pollution.