Effect of anaerobic digester inoculum preservation via lyophilization on methane recovery

Yarberry, Andrea; Lansing, Stephanie; Luckarift, Heather R.; Diltz, Robert; Mulbry, Walter; Yarwood, Stephanie A.

doi:10.1016/j.wasman.2019.01.033

Cited by 18 publications

(2 citation statements)

References 38 publications

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“…Dairy farmers can earn carbon credits by lowering gas emissions, odors, and other volatile organic compounds. Approaches to mitigate gas emissions during manure treatment and storage include proper design and sizing of storage structures (Aboltins et al., 2017); use of lagoon covers (Dougherty et al., 2017; VanderZaag et al., 2008); avoiding aeration and agitation (Rumburg et al., 2004; Owusu‐Twum & Sharara, 2020); energy recovery (Cantrell et al., 2008; Yarberry et al., 2019); use of chemical processes, such as NH 3 stripping and struvite precipitation (Arogo et al., 2006; Vendramelli et al., 2017); segregating manure and urine to reduce the contact of enzymes in the feces with the urea (Ndegwa et al., 2008); and acidifying of the manure (Cao et al., 2020; Sokolov et al., 2019). Approaches like proper design and sizing, avoiding aeration and agitation, and acidifying manure cannot solely mitigate emissions and should be used in combinations.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of a vermifilter at mitigating greenhouse gases and ammonia emissions from dairy wastewater

et al. 2022

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Dairy effluent is a potential source of gaseous pollutants associated with global warming and soil acidification. Mitigating such emissions during handling and storage requires substantial financial and labor input. This study evaluated a low‐cost technology for mitigating gaseous emissions from dairy wastewater. For 9 mo, a pilot‐scale vermifilter system installed on a commercial dairy farm was studied. Bimonthly samples of the dairy wastewater influent and effluent from the vermifilter system were collected. These samples’ potential gas emissions (ammonia [NH3], methane [CH4], carbon dioxide [CO2], and nitrous oxide [N2O]) were measured using a closed‐loop dynamic flux chamber method. Results indicated the following reductions in emissions of these gases by the vermifilter system: 84–100% for NH3, 58–82% for CO2, and 95–100% for CH4. Nitrous oxide emissions were mainly below our instrument detection limits and were thus not reported. The vermifilter showed the potential of reducing the global warming potential from the dairy wastewater by up to 100%. This study further indicated that higher ambient temperatures led to higher emissions of CH4 (R2 = .56) and NH3 (R2 = .53) from untreated dairy wastewater. Overall, the vermifilter system has potential to mitigate gaseous emissions from dairy wastewater.

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Section: Introductionmentioning

confidence: 99%

Efficacy of a vermifilter at mitigating greenhouse gases and ammonia emissions from dairy wastewater

et al. 2022

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“…In addition to the storage of microorganisms in microbial culture collections or microbial resource centres, the availability of stable‐dried microorganisms has great application in multiple areas of interest, such as in medicine with the production of probiotics or as producers of xeroprotectants to fight oxidative stress (García, 2011; SantaCruz‐Calvo et al ., 2013), in nutrition to produce functional foods (Lopez‐Rubio et al ., 2006), in bioremediation for processes associated with bioaugmentation (Vilchez and Manzanera, 2011; Bjerketorp et al ., 2018), in agriculture to produce biostimulants or biofertilizers that promote plant growth, including microorganisms used in biocontrol, and so forth (Vílchez et al ., 2016), and in the biofuel industry for the starting of methane‐producing anaerobic digestors (Yarberry et al ., 2019) or for the production of ethanol (Godoy et al ., 2018). In all these cases, an increase in shelf life, and a concentration of the microorganisms that facilitates the quorum‐sensing response is sought, as well as a reduction in transport costs.…”

Section: Introductionmentioning

confidence: 99%

Dealing with water stress and microbial preservation

Manzanera

2020

Environmental Microbiology

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The relevance of preserving microorganisms has been well accepted for several decades. Interest is now shifting towards investigating adequate preservation methods to improve microbial survival rates and to preserve new taxa of previously considered unculturable microorganisms. In addition, a growing interest in preserving fragile microbial consortia or communities with biotechnological interest motivates the improvement of preservation methods. In the present study, we reviewed the effect of water availability in microbial diversity shift. We describe the effect of drought on microorganisms at the molecular level and their molecular responses to this life-threatening challenge focusing on the production of xeroprotectants. We also review the interspecies interactions of those drought-tolerant microorganisms with other sensitive organisms including neighbouring prokaryotes and eukaryotes such as plants, and the potential role of these microorganisms at determining the ecological composition of stressed environments. We emphasize the importance of applying the knowledge derived from the molecular mechanisms used by desiccation-tolerant microorganisms for the improvement of the preservation techniques. An overview of the current and newer techniques for preserving microorganisms and microbial communities is provided. The biotechnological interest in preserving pure cultures, microbial consortia and communities is also discussed.

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Moretta,

Bozzano

2024

SpringerBriefs in Energy

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Effect of anaerobic digester inoculum preservation via lyophilization on methane recovery

Cited by 18 publications

References 38 publications

Efficacy of a vermifilter at mitigating greenhouse gases and ammonia emissions from dairy wastewater

Efficacy of a vermifilter at mitigating greenhouse gases and ammonia emissions from dairy wastewater

Dealing with water stress and microbial preservation

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