Abstract
Increased production of Waste Activated Sludge (WAS) calls for its proper treatment and this can be achieved by biogas production. The aim of this research was to investigate the impact of 1.5g/L NZVI on the generation of bio-methane through the Anaerobic Digestion (AD) process. The results showed that sludge with NZVI (Sg/NZVI) improved the biogas production due to its electron transfer capability. The pH decreased overtime due to the production of Volatile Fatty Acids (VFA) during the AD process, however, the pH of the control decreased more than that of Sg/NVZI because the H+ was consumed during iron corrosion thus resulting in a favorable pH for the methanogens. But with time, the accumulation of VFA and ammonia resulted in the decreased production of biogas.
| Original language | English |
|---|---|
| Pages (from-to) | 186-191 |
| Number of pages | 6 |
| Journal | Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Oct 22 2020 |