Sustainable Biological Control
Texas A&M University-Kingsvillegraduate students and faculty have developed a project to field test and optimize an improved biological air treatment system for wastewater lift station emissions focused on emissions reduction, odor control and recycling of unit irrigation water.The project is funded through the Technology Development and Transfer Program sponsored by the Texas Higher Education Coordinating Board.
A pilot scale system includes a sequential process train consisting of a biotrickling filter coupled to an organic biofilter was first constructed at the Texas A&M University-Kingsville laboratories.
For the field test of the technology, Wastewater Lift Station 64 in the City of Brownsville, Texas, was selected as the project application site. Wastewater gas emissions and odors are released during water pumping activities into the upper section of the wet well and drawn through a fan into the field biofiltration system. The new engineered biological air treatment system including the sequential components has been designed and fabricated by BioReaction Industries LLC, and was delivered to the field testing site for Brownsville PUB in September of 2004 and began operation in October 2004.
Preliminary results have demonstrated successful removal of up to 90% of odorous sulfur compounds at concentrations approaching 100 ppm. Additional optimization is planned for the bioscrubbing section to treat even higher concentrations of odor causing compounds.
Project PI: Dr. Kim Jones, STEI Project Co-PI: Dr. Al Martinez
Project partners: BioReaction Industries, LLC; Brownsville Public Utilities Board
Project Sponsor: TDT Program Texas Higher Education Coordinating Board
Total Project Funding Level: $314,000