WCS for the Thomasville White Paper.

Thomasville AL currently runs a 35 acre controlled discharge lagoon system with approximately 85 acres nearby for land application as well. They would like to reclaim the 85 acres currently being used for land application so they can turn it into another industrial park. In order to do so, they have to convert their wastewater lagoons from a controlled discharge system into a continuous discharge system, which means much more stringent limits in their effluent. Originally the community was contemplating abandoning their lagoons altogether and building a multi-million dollar mechanical plant.

Solution & Results

After the conclusion of the pilot study at the refinery in Louisiana, WCS shipped the same open top pilot unit to Thomasville, November 12, 2010. The pilot was given time to rebuild its bio-mass and began sampling on December 13, 2010. The community began by sampling twice a month until May when a review of the data showed excellent performance and the community decided to sample once a week in order to get more data to share with the state. Below are the results of the Ammonia samples taken through the end of the pilot study. For a full review of the pilot study, please contact WCS for the Thomasville White Paper.


Customer Feedback

Kevin Heartsill the Public Works Director for Thomasville recently provided WCS with his feedback regarding the pilot study: “I was VERY skeptical and did not believe that the unit would achieve the sample results for nutrient removal that were proposed. I could not have been more wrong. The sample data collected during the last year combined with the projected installation cost has completely changed our focal direction for the future of wastewater treatment in Thomasville, Alabama. Add to that the virtual lack of operation and maintenance expense and the simplistic design of the product, I cannot find a negative point concerning Bio-Dome technology.”


 Bio-Shells System in Glencoe, AL

Glencoe wastewater treatment facility sits adjacent to the Coosa River. Glencoe’s facility began in 1974 as a single cell lagoon (0.45MGD). It has had many challenges meeting its BOD treatment required in recent years. This Lagoon was initially excavated to 5’ deep, however it currently has approximately only 3.5’ of water due to an 18” sludge layer. Glencoe is striving to find a best option to increase their treatment capacity while minimizing as much capitol expense as possible.


Among other update options, WCS’ Bio-Shell system was chosen because it was reliable and the most cost-effective alternative. This system provides a large aerated surface and unique aeration pattern, accelerating the ability of beneficial bacteria to grow and effectively reduce undesirable pollutants to provide cleaner water. The unique design of the Bio-Shell results in a high oxygen transfer efficiency with a minimum energy input (2 SCFM per Bio-Shell).



In 2015, Glencoe placed two earthen embankments to change its single cell to three cells lagoon. 10 Bio-Shells were placed in the final cell to provide additional BOD and TSS removal. WCS has been able to engineer a system specifically tailored to the needs and complexity of Glencoe’s Lagoon. The Bio-Shell system started operating in December 2015.


Performance data from December 2015 through August 2016 show that the lagoon operating with one 5 hp blower and its coarse bubble aeration system supplemented by 10 Bio-Shell easily achieved its permit

limits in Glencoe. Effluent BOD remained below 20 mg/L and effluent TSS were usually below 35 mg/L after Bio-Shells were installed (shown in figures below). Beside enable the effluent remain in compliance, the Bio-Shell system consumed minimum energy, required little oversight, and offered a superior option compared to expensive alternatives.




Bio-Dome/Bio-Shell® is featured in “Principles of Design and Operations of Wastewater Treatment Pond Systems for Plant Operators, Engineers, and Managers” (EPA/600/R-11/088).

For more on how a Bio-Shell ® solution can keep your lagoons compliant at a cost you can afford, DOWNLOAD BROCHURE