City uses digesters to rid lift stations of hydrogen sulfide – Case Study

Problem

The city of Taylorville (Illinois) Street/Sewer Department faced issues with hydrogen sulfide in three lift stations and with biofilms further downstream in the delivery piping to the wastewater treatment plant. The discharge manhole H2S readings were over 700 ppm, and local residents complained of odors.

Solution

The city purchased three Little John Digesters from D02E Wastewater Treatment. After the first month of running the digesters with ozone, the average H2S levels at the three lift stations were 42 ppm.

Result

These digesters have made a tremendous difference not only in odor control, but also in heavy matting and FOG removal," says Richard Wiseman, street and sewer superintendent. "The FOG and heavy matting have never reformed in the stations nor down the collection lines. We have received no further complaints." 251-937-8200; www.do2e.com.