Bainbridge is a small town in west central Indiana with a population of 750 residents. Bainbridge was facing new permit limits for ammonia and wanted to keep their lagoon system rather than building a mechanical plant due to the significant cost of a new plant. Covalen installed 8 ProFusions in Lagoon 1 and two ProFusions in Lagoon 2 in April 2014 to address ammonia levels.

With the installation of the ProFusions, Bainbridge was able to immediately improve winter removal rates of biochemical oxygen demand (BOD) and has been able to keep ammonia significantly below permit limits ever since. Ammonia levels were regularly exceeding the legal limit of between 8-10 mg/L in the months prior to the installation. Since the installation of the ProFusions it has been rare that Ammonia was measured exceeding 5 mg/L

Prior to the installation Bainbridge also treated algae in their lagoons with chemicals. The ProFusions from BIG were able to improve overall water quality and clarity, eliminating the need to chemically treat algae. In the following years, Bainbridge has been able to rely on the ProFusions to keep the water clean.

“The natural process of algae removal by stripping CO2 is what surprised me the most. We no longer have to hire a company to come in and treat our algae and the town is saving money on algae removal,” Town Superintendent, Bainbridge, Indiana.

This is one of the first lagoon installations using the Bradley Innovation Group equipment and is still in operation after more than ten years.

Bainbridge has been in compliance since the Bradley equipment was installed and data points are trending in the right direction for continued improvement. A detailed analysis of the performance of the system over the first four years is shown in the charts and trendlines below.