Review of greenhouse gas emissions from the storage and land application of farm dairy effluent

Laubach, Johannes; Heubeck, S.; Pratt, Chris; Woodward, K. Benjamin; Guieysse, Benoı̂t; Weerden, Tony J. van der; Chung, ML; Shilton, Andy; Craggs, Rupert J.

doi:10.1080/00288233.2015.1011284

Cited by 32 publications

(14 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Livestock production is a significant source of methane (CH 4 ) emissions (e.g., 119.1 ± 18.2 Tg in 2011) ( Wolf et al, 2017 ), mainly from enteric fermentation and manure management of dairy farming operations ( Laubach et al, 2015 ; Jayasundara et al, 2016 ; Wolf et al, 2017 ). The large volumes of manure produced annually from intensive dairy farming operations areusually stored in slurry form ( VanderZaag et al, 2013 ), which create environments conducive to CH 4 production ( Grant et al, 2015 ; Petersen, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Reduction in Methane Emissions From Acidified Dairy Slurry Is Related to Inhibition of Methanosarcina Species

et al. 2018

View full text Add to dashboard Cite

Liquid dairy manure treated with sulfuric acid was stored in duplicate pilot-scale storage tanks for 120 days with continuous monitoring of CH4 emissions and concurrent examination of changes in the structure of bacterial and methanogenic communities. Methane emissions were monitored at the site using laser-based Trace Gas Analyzer whereas quantitative real-time polymerase chain reaction and massively parallel sequencing were employed to study bacterial and methanogenic communities using 16S rRNA and methyl-coenzyme M Reductase A (mcrA) genes/transcripts, respectively. When compared with untreated slurries, acidification resulted in 69–84% reductions of cumulative CH4 emissions. The abundance, activity, and proportion of bacterial communities did not vary with manure acidification. However, the abundance and activity of methanogens (as estimated from mcrA gene and transcript copies, respectively) in acidified slurries were reduced by 6 and 20%, respectively. Up to 21% reduction in mcrA transcript/gene ratios were also detected in acidified slurries. Regardless of treatment, Methanocorpusculum predominated archaeal 16S rRNA and mcrA gene and transcript libraries. The proportion of Methanosarcina, which is the most metabolically-diverse methanogen, was the significant discriminant feature between acidified and untreated slurries. In acidified slurries, the relative proportions of Methanosarcina were ≤ 10%, whereas in untreated slurries, it represented up to 24 and 53% of the mcrA gene and transcript libraries, respectively. The low proportions of Methanosarcina in acidified slurries coincided with the reductions in CH4 emissions. The results suggest that reduction of CH4 missions achieved by acidification was due to an inhibition of the growth and activity of Methanosarcina species.

show abstract

Section: Introductionmentioning

confidence: 99%

Reduction in Methane Emissions From Acidified Dairy Slurry Is Related to Inhibition of Methanosarcina Species

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In some countries, like the USA, manure management from animal housing and barns contributes up to 17 % of total agricultural emissions (EPA 2014). Currently, CH 4 from New Zealand dairy effluent ponds contributes more than 50 % from manure management, and this figure is likely to increase to 80 % as dairy farms store the waste from milking sheds and feeding pads (and stand-off pads on some farms) (Laubach et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Does acidification of a soil biofilter compromise its methane-oxidising capacity?

et al. 2016

View full text Add to dashboard Cite

A biofilter made using volcanic pumice soil from a landfill in Taupo, New Zealand has been found to mitigate CH 4 emissions from New Zealand dairy effluent ponds. However, the biofilter after drying out following almost 5 years of use removed little or no CH 4 . Furthermore, H 2 S present in the biogas (from the dairy effluent ponds) had increased the acidity (pH) in the soil biofilter from 5.2 to 3.72 during this 5-year period. In this study, we adjusted the soil moisture to 60 % water-holding capacity (WHC) and investigated the CH 4 -oxidising capacity of a reconstituted acidic soil biofilter operating at low pH (3.72) and characterised the abundance and diversity of methane-oxidising bacteria (MOB) using quantitative polymerase chain reaction (qPCR) and terminal-restriction fragment length polymorphism (T-RFLP). The acidic soil biofilter achieved a maximum CH 4 removal rate of 30.3 g m -3 h -1 . Both types I and II MOB communities, along with some uncultured novel MOB strains or species in the biofilter column, were present. Among these, Methylocapsa-like type II methanotrophs were significantly more prominent than the other MOB. Other MOB, Methylococcus (type I), Methylobacter/Methylomonas/ Methylosarcina (type I) genera, Methylosinus and Methylocystis (type II), were least abundant. During the 90-day study, the population of Methylocapsa-like MOB increased 4-fold, demonstrating the ability of these soil microorganisms to grow under acidic pH conditions in the biofilter, whereas the populations of type I MOB remained stable, and the populations of type II MOB (except Methylocapsa) decreased. Our results indicated that (i) a soil biofilter can effectively regain efficiency if sufficient moisture levels are maintained, regardless of the soil acidity; (ii) changes in the MOB population did not compromise the capacity of the volcanic pumice soil to oxidise CH 4 ; (iii) the more acidic environment (pH 3.72) tends to favour the growth and activity of acid loving Methylocapsa-like MOB while being detrimental to the growth of Methylobacter/Methylocystis/Methylococcus group of MOB; and (iv) novel species or strains of uncultured Methylomicrobium/Methylosarcina/Methylobacter (type I MOB) could be present in the soil biofilter. This study has revealed the MOB population changes in the biofilter with acidification did not compromise its capacity to oxidise CH 4 demonstrating that soil biofilter can operate effectively under acidic conditions.

show abstract

“…Anaerobic liquid manure ponds are a source of CH 4 (Khan et al, 1997) and may also, if covered with a porous floating surface layer crust, be a source of N 2 O (Sommer et al, 2000). Few studies have examined CH 4 and N 2 O emissions from liquid manure ponds in New Zealand, and data are needed to provide information for the New Zealand greenhouse gas inventories (Laubach et al, 2015). Furthermore, there is a need to evaluate methods to reduce the emissions of these gases.…”

mentioning

confidence: 99%

Transformation of Organic Matter and the Emissions of Methane and Ammonia during Storage of Liquid Manure as Affected by Acidification

et al. 2017

View full text Add to dashboard Cite

Acidification of livestock manure can reduce emission of the greenhouse gases methane (CH) and nitrous oxide (NO), as well as ammonia (NH). We examined the relation between emission of these gases and transformation of organic matter as affected by acidification. Liquid cattle manure was acidified with sulfuric acid to pH 5.5 at a pilot scale (100 L), and we measured effects on CH, NO, CO and NH emissions and on transformation of pH buffer components and organic matter. Acidification reduced NH emissions by 62% (47 d) and emission of CH by 68% (57 d). Emissions of NO were negligible, probably due to the absence of a surface crust. Reductions in NH and CH emission were highest at the start but declined over time concomitantly with a gradual increase in the stored liquid manure pH. Acidification did not significantly affect CO emissions. Emission of CO was high, five- to ten-fold of CH emissions, until Day 16 of storage, after which the CO emission rate declined to around twice the CH emission rate; consequently, the majority of C loss during the early stages of storage was CO. Cumulative emission of C in CO and CH closely matched depletion of dissolved organic carbon (DOC), suggesting that DOC may be a predictor for CH emission from dilute slurries. volatile fatty acid and total ammoniacal nitrogen concentrations in surface layers were substantially higher than at the center of stored liquid manure, perhaps resulting from microbial activity at the surface. This pattern deserves attention when predicting NH emission from stored slurry.

show abstract

Review of greenhouse gas emissions from the storage and land application of farm dairy effluent

Cited by 32 publications

References 70 publications

Reduction in Methane Emissions From Acidified Dairy Slurry Is Related to Inhibition of Methanosarcina Species

Reduction in Methane Emissions From Acidified Dairy Slurry Is Related to Inhibition of Methanosarcina Species

Does acidification of a soil biofilter compromise its methane-oxidising capacity?

Transformation of Organic Matter and the Emissions of Methane and Ammonia during Storage of Liquid Manure as Affected by Acidification

Contact Info

Product

Resources

About