The next stop was the Waste Water Treatment Plant.
In the past, Columbia had a host of water treatment sites. The treatment plant we visited off Gillespie Bridge Road was built to consolidate Columbia’s water treatment into one site.
About 20 years ago, citizens appealed for a more natural approach to water treatment. The result was a 130-acre network of constructed wetlands. In this system, the initial treatment steps are the same as those at a conventional treatment center. Then, for its final treatment, the water is passed through the wetland area.
The wetland is home to cattails. Cattail root systems provides a home for the microorganisms that feed on the biowaste found in the treated water. The cattails benefit from this “natural fertilizer” as well. The wetland area is “green as a gourd,” said Tim James from the Missouri Department of Conservation.
Through this process, water is “treated” naturally. The wetland area was designed for a known amount of wastewater flow, and its size is based on the level of treatment needed to return the water to the environment without harmful effects, according to the project’s brochure.
Matthew Rosen, one of the judges, asked specifics on the animal species living in the wetlands.
Muskrats fill the area as well as migratory birds, James said.
Due to its constant flow of water, the wetland area never freezes. During winter, it is a bird hot spot.
Part of the wetland area lies adjacent to the Katy and MKT trails. Viewing platforms have been installed in these areas and are especially popular with birdwatchers.
Joel Gambill, Waste Water Treatment Plant Superintendent, stressed that tests are done on the water coming into the plant and on water exiting the wetland area.
This project has gained national and international attention. Countries including China and Russia have sent experts to view Columbia’s unique approach to water treatment.
– Naomi Weisbrook
