Pretreatment can reduce high BOD₅ and TSS concentrations. Is this statement True or False?

Pretreatment is indeed effective in reducing high Biological Oxygen Demand (BOD₅) and Total Suspended Solids (TSS) concentrations in wastewater. The primary purpose of pretreatment processes is to remove or reduce specific contaminants before the wastewater is subjected to further treatment.

High levels of BOD₅ indicate the presence of organic materials that can deplete oxygen in receiving waters, leading to detrimental environmental impacts. TSS represents particles suspended in water, which can contribute to a range of problems such as water turbidity and harm to aquatic life. By utilizing pretreatment techniques, which may include screening, sedimentation, or chemical treatment, it is possible to significantly lower both BOD₅ and TSS levels. This reduction helps ensure that subsequent treatment processes operate more efficiently and effectively while protecting the environment.

In summary, the assertion that pretreatment can reduce high BOD₅ and TSS concentrations is true, as it serves as a critical step to enhance the overall treatment of wastewater.