Nickel stimulation of anaerobic digestion

Speece, Richard E.; Parkin, Gene F.; Gallagher, Daniel L.

doi:10.1016/0043-1354(83)90237-3

Cited by 85 publications

(38 citation statements)

References 22 publications

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“…Speece [15] demonstrated the stimulatory effects of yeast extract on methanogenesis and concluded that its trace metal constituents, especially the significant amount of nickel, were the cause of the stimulation. In the trace element analysis of the digestate (Table 1), it is noticeable that the cobalt and selenium concentration in the YE supplemented digester D2 was more than double that in D1, suggesting that this was attributable to the supplementation.…”

Section: Bmp Testmentioning

confidence: 99%

“…Other studies on digestion of potato process waste [13] and on a mixture of fruits, vegetables, meats and fried foods [14] have also suggested improved stability and performance after supplementation with trace elements (Fe, Cu, Zn, Mn, Mo, Co, Al and Se). Supplementation of essential trace elements has been shown to be important to maintain and even stimulate the digestion process in a number of studies [15,16,17,18,19,20,21]. This dependence can be explained by the fact that essential enzymes required for anaerobic biochemical reactions contain metals such as cobalt, nickel, iron, zinc, molybdenum and tungsten, in the form of coenzymes and cofactors.…”

Section: Introductionmentioning

confidence: 99%

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Strategies for stable anaerobic digestion of vegetable waste

2012

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International trade and the market demand for pre-prepared agricultural produce is not only increasing the total quantity of waste agricultural biomass but also centralising its availability, making it potentially useful for energy production. The current work considers the suitability of vegetable trimmings and rejects from high-value produce air-freighted between Africa and Europe as a feedstock for anaerobic digestion. The physical and chemical characteristics of a typical mixed vegetable waste of this type were determined and the theoretical energy yield predicted and compared to experimentally-determined calorific values, and to the energy recovered through a batch biochemical methane potential test. A semi-continuous digestion trial was then carried out with daily feed additions at different organic loading rates (OLR). At an OLR of 2 g VS L -1 day -1 the substrate gave a methane yield of 0.345 L g -1 VS added with VS destruction 81.3%, and showed that 76.2% of the measured calorific value of the waste could be reclaimed as methane. This was in good agreement with the estimated energy recovery of 68.6% based on reaction stoichiometry, and was 99% of the biochemical methane potential (BMP). Higher loading rates reduced the specific methane yield and energy conversion efficiency, and led to a drop in digester pH which could not be effectively controlled by alkali additions. To maintain digester stability it was necessary to supplement with additional trace elements including tungsten, which allowed loading rates up to 4 g VS L -1 day -1 to be achieved. Stability was also improved by addition of yeast extract (YE), but the higher gas yield obtained was as a result of the contribution made by the YE and no synergy was shown. Co-digestion using card packaging and cattle slurry as co-substrates also proved to be an effective means of restoring and maintaining stable operating conditions.

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Section: Bmp Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strategies for stable anaerobic digestion of vegetable waste

2012

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“…The first studies on the importance of TE in AD were done in the 1980s, with the work of Callander and Barford (Callander & Barford 1983b, a) and Speece et al (Speece et al 1983;Speece et al 1986). Those studies shifted the view of heavy metals, such as nickel or cobalt, as dangerous substances to essential elements supporting microbial growth in AD.…”

Section: Cost Action Es 1302mentioning

confidence: 99%

Trace element supplementation as a management tool for anaerobic digester operation: benefits and risks

Roussel¹,

Fermoso²,

Collins³

et al. 2018

Water Intell Online

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“…Trace elements and macro-nutrients Macro-nutrients (N and P) and numerous trace elements (Co, Mn, Ni, etc) are essential growth factors [60][61][62][63][64]. They therefore represent a unique tool for minimizing or maximizing bacterial growth, that is to say the fractional conversion of biodegradable substrate into either new biomass or methane.…”

Section: Mixing Conditionsmentioning

confidence: 99%

Challenges of a feasible route towards sustainability in environmental protection

Lettinga

2010

Front. Environ. Sci. Eng. China

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Anaerobic processes for treatment of low and high strength wastewaters and solid wastes constitute the core method in the natural biological mineralization (NBM) treatment concept. When adequately combined with the complementary NBM-systems and modern clean water saving practices in wastewater collection and transport, they represent a feasible route to sustainable environmental protection (EP sus ), in essence even towards a more sustainable society. Despite the development and implementation of modern high rate Anaerobic Wastewater Treatment (AnWT-) systems and complementary innovative NBM-processes, the considerable progress made since the seventies in fundamental insights in microbiology, biochemistry and process technology, still numerous challenging improvements in the NBM-field can be realized. This contribution is mainly based on the insights attained from wide ranging literature evaluations and the results of experimental research conducted by numerous PhD students who participated in our group over the last four decades. An attempt is made here to identify major facets on which an improved insight can, and consequently should, be obtained in order to accomplish more optimal operation and design of various types of Anaerobic Degradation (AnDeg-) processes.

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Nickel stimulation of anaerobic digestion

Cited by 85 publications

References 22 publications

Strategies for stable anaerobic digestion of vegetable waste

Strategies for stable anaerobic digestion of vegetable waste

Trace element supplementation as a management tool for anaerobic digester operation: benefits and risks

Challenges of a feasible route towards sustainability in environmental protection

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