3rd Indian International Conference on Industrial Engineering and Operations Management

Valorization of piggery slurry wastewater to bioenergy

Mercy Manyuchi
Publisher: IEOM Society International
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Abstract

This work focused on the valorization of piggery industry slurry to bio energy and bio fertilizers. A sample of piggery slurry wastewater was treated using a bio catalyst, Actizyme at 0.050 g/L loading, resulting in reduction of the biological oxygen demand (BOD) by 97%, the total dissolved solids (TDS) by 89% and the total suspended solids (TSS) by 98%. The solid material from the slurry was anaerobically digested to produce biogas with 73.4% methane composition over a period of 30 days and temperature of 37 ◦C at a commercial rate of 494 kg/day. The techno economic assessment for the piggery slurry valorization indicated a return on investment of 26% and payback period of 4 years and a capital investment of USD 820 000.

Published in: 3rd Indian International Conference on Industrial Engineering and Operations Management

Publisher: IEOM Society International
Date of Conference: November 2-4, 2023

ISBN: 979-8-3507-0545-4
ISSN/E-ISSN: 2169-8767