Viewing a single comment thread. View all comments

samuswashere t1_jdkt1cc wrote

The question of whether 80% is good is a really good one. I’m not an expert on wastewater but I have worked in stormwater treatment. In general it easier to remove a higher percentage of a pollutant if the original concentration is higher. So the average percent removal often isn’t a good indicator of how effective that method of removal will be with different starting concentrations or of what the final concentration to be.