Which process is commonly used to promote the removal of pathogens from wastewater?

The correct answer reflects a multifaceted approach to treating wastewater in order to effectively reduce the presence of pathogens. Each of the processes mentioned plays a significant role in promoting pathogen removal.

Filtration is a physical process that involves passing wastewater through barriers that allow water to flow while trapping solid particles, including pathogens. This method can significantly reduce the number of microorganisms present in the wastewater.

Pasteurization is a thermal process that involves heating the wastewater to a specific temperature for a certain period of time, effectively killing many pathogens. While more common in food safety, it can also be applied in some wastewater treatment scenarios to ensure pathogen reduction.

Chlorination involves adding chlorine or chlorine compounds to disinfect the water. Chlorine is well-known for its ability to kill bacteria and viruses, thus serving as a strong method for pathogen removal in wastewater.

Utilizing all these methods together can enhance overall effectiveness, ensuring a more reliable outcome in eliminating pathogens. This comprehensive approach underscores the importance of using multiple treatment processes in wastewater management to achieve the safest possible effluent.