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Nickel stimulation of anaerobic digestion
Journal article   Peer reviewed

Nickel stimulation of anaerobic digestion

R.E. Speece, Gene F. Parkin, Daniel Gallagher and Dennis M Gallagher
Water research (Oxford), v 17(6), pp 677-683
1983
DOI: https://doi.org/10.1016/0043-1354(83)90237-3
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

anaerobic digestion methanogens trace metals
An acetate-enriched methanogenic culture was assayed for nutritional stimulation by nickel in combination with other inorganic and organic nutrients, i.e. iron, cobalt, yeast extract, riboflavin and vitamin B 12. Acetate was automatically maintained at 2–3 g l −1 by a pH Stat system so that substrate was not limiting. In the absence of nickel, the specific acetate utilization rates were in the range of 2–4.6 g acetate g −1 VSS day −1. In the presence of nickel, this rate was as high as 10 and when both nickel and yeast extract were supplemented this rate temporarily increased to 12–15 g acetate g −1 VSS day −1 . The maximum acetate utilization rate was observed to be 51 g l −1 day −1 as compared to 3.3 g l −1 day −1 for conventional high-rate digestion. Daily phosphate additions were required to sustain these high acetate utilization rates. An acetate utilization rate of 20–30 g l −1 day −1 was maintained for over 25 days. Microscopic examination of the culture revealed a predominance of a sarcina whenever stimulation was noted.

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78 citations in Web of Science
80 citations in Scopus

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#6 Clean Water and Sanitation
#7 Affordable and Clean Energy
#12 Responsible Consumption & Production

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Web of Science research areas
Engineering, Environmental
Environmental Sciences
Water Resources
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