| Title |
Effect of fecal matter co-digestion with kitchen waste on Hermetia illucens's larval weight and protein content |
| ID_Doc |
20331 |
| Authors |
Matheka, RM; Raude, JM; Murunga, SI; Riungu, JN; Wandera, SM |
| Title |
Effect of fecal matter co-digestion with kitchen waste on Hermetia illucens's larval weight and protein content |
| Year |
2021 |
| Published |
Journal Of Water Sanitation And Hygiene For Development, 11, 5 |
| DOI |
10.2166/washdev.2021.077 |
| Abstract |
Sustainable treatment of fecal matter is a long-standing challenge in sanitation, particularly in developing countries. Although recent developments have seen the evolution of innovative onsite sanitation technologies, the treatment of fecal waste collected still remains a daunting task. This study evaluated the effect of formulated feedstock: fecal matter from urine-diverting dry toilets and kitchen waste (1:0, 1:1, 2:1, 4:1, and 0:1) on waste weight reduction, Hermetia illucens's larval weight gain, and crude protein content during co-digestion. Samples were collected after every 2 days for larval weight determination and protein content analysis using the Kjeldahl method of nitrogen determination. The waste reduction index (WRI) was determined after 50% pupation. The larvae grew on all substrates yielding 32.97-38.6% dry matter (DM) protein content and larval weight ranging from 1.12 to 1.70 g per five larvae. Results indicate that a 1:1 co-digestion ratio resulted in a high WRI (3.61), DM crude protein content (38.6%), and larval weight (1.70 g per five larvae). This study used the circular economy-based approach which provides a win-win situation to sanitation provision and environmental management while realizing products with potential for livelihood improvement. |
| Author Keywords |
circular economy; co-digestion; kitchen waste; sanitation |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000680042000001 |
| WoS Category |
Water Resources |
| Research Area |
Water Resources |
| PDF |
https://doi.org/10.2166/washdev.2021.077
|