What are three ways algae can impact filter plants?

The selected response outlines three significant ways in which algae can impact filter plants. Firstly, when algae bloom, they can produce large volumes of biomass that can clog intake screens, which increases maintenance needs and reduces overall efficiency in water intake. Secondly, algae can interfere with coagulation processes during water treatment. Coagulants are used to help remove impurities from the water; however, the presence of algae can either necessitate the use of higher dosages or disrupt the coagulation balance, thereby affecting the effectiveness of the water treatment process. Finally, substantial algae presence can lead to shorter filter runs. This refers to the diminished efficiency of filters due to the obstruction created by algae, leading to more frequent backwashing and maintenance, ultimately reducing operational efficiency.

In contrast, other options touch on different aspects. One choice mentions reducing water clarity and increasing toxins, which are valid concerns but do not specifically reference impacts on the performance of the filter mechanisms. Another option discusses changes in water taste and energy use, which relate more to consumer perception and operational costs rather than the direct functioning of filter systems. Lastly, the mention of altering pH levels and introducing new species is important for ecological balance but does not directly influence filter operations. Therefore, the chosen response accurately captures the operational challenges