Sustainable Environment Research

Table 3 Reduction ratios (%) of potential pathogens and indicator bacteria in digestate samples

From: Improved biofertilizer properties of digestate from codigestion of brewer’s spent grain and palm oil mill effluent by manure supplementation

Bacterial groups	Reactors
Bacterial groups	A	B	C	D (control)
Total coliforms	44.4 ± 0.10^b	46.2 ± 1.00^c	49.3 ± 1.00^d	40.0 ± 1.00^a
Faecal coliforms	47.2 ± 1.00^b	59.2 ± 1.00^c	60.0 ± 1.00^c	29.3 ± 1.00^a
Salmonella	36.0 ± 1.00^a	41.2 ± 0.81^b	49.2 ± 1.12^c	40.0 ± 0.40^b
Staphylococcus	36.4 ± 0.50^a	50.0 ± 1.00^b	50.0 ± 5.00^b	46.0 ± 4.00^b
Vibrio	99.6 ± 0.58^a	99.3 ± 1.15^a	99.3 ± 1.15^a	99.6 ± 0.58^a

Similar superscript letter means not significantly different in mean (p > 0.05), while different superscript letters mean significantly different (p < 0.05); A—D indicate bioreactors with different waste composition

Back to article page

ISSN: 2468-2039

Contact us

Submission enquiries: Access here and click Contact Us
General enquiries: info@biomedcentral.com