Think back to how our society functioned 50 or 60 years ago. We drank beer or soda pop from cans that we simply tossed in the trash. Industries took in raw materials, made products, and sent the wastes into the air and water, or to the dump.Around the first Earth Day back in 1970, we decided that was no way to live. In the 1990s we got serious about recycling, and curbside programs sprang up everywhere. Now recycling is the default position where any resource is concerned.To a large degree that’s true in wastewater treatment, as well — though not
