Ajayi, Olutooni

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Description: Novel Modular Treatment System for Distributed Energy Recovery and Water Reclamation...

Novel Modular Treatment System for Distributed Energy Recovery and Water Reclamation from Industrial Wastewaters

Abstract

Food and beverage industries, such as breweries, discharge wastewater with high organic carbon content; the use of centralized treatment facilities to aerobically manage this wastewater is expensive and energy intensive. Industrial onsite anaerobic treatment systems could improve the management of wastewater and provide opportunities for energy generation and resource recovery. We have developed a two-stage system using encapsulated microorganisms for decentralized anaerobic treatment of brewery wastewater. We hypothesized that a single mixed microbial seed community could be encapsulated for reliable 1st (fermentative)- or 2nd (methanogenic)-stage treatment. Our research goal was to develop a robust, flexible, and reliable community by (i) adapting fermenting and methanogenic communities to several target wastewaters; (ii) characterizing the communities and identifying key members; and (iii) assembling and encapsulating these communities for flexible treatment of a variety of feeds. Results showed that the fermenting communities evolved after adaptation to different feeds while the methanogenic communities remained static.

A novel anaerobic system was developed using encapsulated microbial communities. It was hypothesized that a single mixed microbial seed community could be encapsulated for reliable 1st (fermentative)- or 2nd (methanogenic)-stage treatment. Results showed that a single 1st stage community was capable of excellent COD removal and changed over time in response to different feeds. The 2nd stage reactors also performed well, with their community structure remaining static over time.

SpeakerAjayi, Olutooni

Presentation time

09:30:00

09:50:00

Session time

08:30:00

10:00:00

SessionFood and Aquaculture Wastewater Treatment

Session locationRoom S501d - Level 5

TopicIntermediate Level, Nutrients, Research and Innovation, Sustainability and Climate Change

Author(s)

Ajayi, Olutooni

Author(s)O. Ajayi 1; P. Novak 2 ; W. Arnold 2; N. Wright 3; J. Guest 4; O. Ajayi 1;

Author affiliation(s)Department of Civil, Environmental and Geo- Engineering, University of Minnesota 1; Department of Civil, Environmental and Geo- Engineering, University of Minnesota 2 ; Department of Civil, Environmental and Geo- Engineering, University of Minnesota 2; Department of Mechanical Engineering, University of Minnesota 3; Department of Civil & Environmental Engineering, University of Illinois 4; Department of Civil, Environmental and Geo- Engineering, University of Minnesota 1;

SourceProceedings of the Water Environment Federation

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Oct 2023

DOI10.2175/193864718825159149

Volume / Issue

Content sourceWEFTEC

Word count15