Effects of four additives in pig manure composting on greenhouse gas emission reduction and bacterial community change

Mao, Hui; Zhang, Haoyue; Fu, Qian; Zhong, Minzheng; Li, Ronghua; Zhai, Bingnian; Wang, Zhaohui; Zhou, Lina

doi:10.1016/j.biortech.2019.121896

Cited by 97 publications

(22 citation statements)

References 45 publications

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“…Biochar reduced the CH 4 emission by 55% while clinoptilolite seems had no effect on such loss (Table 3). Previous studies [32,35,36] reported that the emission of CH 4 from animal manures could be reduced by 50-95% by adding biochar and clinoptilolite alone or in combination (5-10% w/w of each additive), this being explained by the adsorption ability of the additives. However, in this study, the addition of clinoptilolite to pig slurry did not cause an increase or a reduction in CH 4 emissions because the experiment has been done on the liquid fraction of the slurry.…”

Section: Carbon Emissionsmentioning

confidence: 97%

Effects of Biochar and Clinoptilolite on Composition and Gaseous Emissions during the Storage of Separated Liquid Fraction of Pig Slurry

et al. 2020

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The storage of animal manure is a major source of gaseous emissions. The aim of this study was to evaluate the effects of biochar and clinoptilolite on the composition and gaseous emissions during the storage of separated liquid fraction of pig slurry. The experiment was carried out using containers with 6 L of pig slurry each. The additives biochar and clinoptilolite were added alone and mixed to the pig slurry at a rate of 2.5% each, in a total of four treatments with three replicates including the control. Gaseous emissions were monitored by a photoacoustic multigas monitor, and slurry samples were collected at 0 and 85 days and their composition assessed. Results showed that the addition of biochar could modify the physicochemical properties of the slurry. The addition of biochar did not reduce the E. coli during the experiment while clinoptilolite decreased its prevalence. The addition of biochar or clinoptilolite reduced significantly the NH3 emission during the storage of slurry, but no advantages were gained with their combination. The addition of biochar significantly reduced the CO2 and CH4 emissions relative to clinoptilolite, however N2O emissions and global warming potential did not differ among the additives. We conclude that the biochar and clinoptilolite are recommended as a mitigation measure to reduce gaseous emissions and preserve the fertiliser value at slurry storage.

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Section: Carbon Emissionsmentioning

confidence: 97%

Effects of Biochar and Clinoptilolite on Composition and Gaseous Emissions during the Storage of Separated Liquid Fraction of Pig Slurry

et al. 2020

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“…However, the effects of different carbon sources amendment on NH 3 emission was significantly different, even some amendment were not satisfying because of poor availability of the materials used 18 . That's could be because the poor availability of amendment cause excessive nitrogen cannot be assimilated by microorganism and promote NH 3 emission by microbial reactions 19,20 .…”

Section: Improving Sewage Sludge Compost Process and Quality By Carbon Sources Additionmentioning

confidence: 99%

Improving sewage sludge compost process and quality by carbon sources addition

Meng

Zhang

et al. 2021

Sci Rep

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In present study, the effects of carbon sources on compost process and quality were evaluated in the lab-scale sewage sludge (SS) composting. The composting experiments were performed for 32 days in 5 L reactors. The results showed that carbon sources could change the nitrogen conversion and improve the compost quality. Especially, the readily degradable carbon source could promote organic matter degradation, improve nitrogen conversion process and accelerate compost maturation. The addition of glucose and sucrose could increase dissolved organic carbon, CO2 emission, dehydrogenase activity, nitrification and germination index during the SS composting. That's because glucose and sucrose could be quickly used by microbes as energy and carbon source substance to increase activity of microbes and ammonia assimilation. What's more, the NH3 emission was reduced by 26.9% and 32.1% in glucose and sucrose treatments, respectively. Therefore, the addition of readily degradable carbon source could reduce NH3 emission and improve compost maturity in the SS composting.

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“…Metallic oxides and clays as constituents of soil matrix are well known to have an important role in SOM stabilization [18] and have currently gained attention for their application during composting processes [15,19]. Applying these inorganic additives to the system can improve the physical properties of the composting mixtures and some of them, such as clays or nanoclays, are more often used to reduce greenhouse gas (GHG) emissions, N losses, and to enhance the carbon (C) stabilization by increasing the activities of certain enzyme activities associated to C compounds breakdown during composting, which can lead to the production of amendments oriented to C sequestration [15,[20][21][22][23][24][25]. Despite the increasing interest in using these materials as additives, little is known about the main mechanisms involved in the C stabilization in compost, with the organo-mineral associations as one of most proposed to explain the enhancing in C stabilization [15,26].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Inorganic Nanoparticles and Biochar as Additives of Agricultural Waste Composting: Effects of End-Products on Plant Growth, C and Nutrient Stock in Soils from a Mediterranean Region

et al. 2021

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This study was conducted to evaluate the effect of compost produced with agricultural residues and oat-based biochar, iron oxide and halloysite nanoparticles as additives of the process of composting on soil chemical properties, nutrient status and growth of ryegrass Lolium perenne L. For this, a 90-day mesocosm experiment was carried out under greenhouse conditions. Bare soil and a basal fertilization treatment were compared to soils amended with nonadditive compost (NA compost), compost supplied with oat-based biochar (Bioch compost), iron oxide nanoparticles (Fe compost), and halloysite nanoparticles (Ha compost). Compost supplied with nanoparticles and biochar combined were also considered. The incorporation of compost with or without additives increased the content of total C and N in soil, with N diminishing (total and mineral forms) and C/N modifications after 90 days. The addition of compost and co-composted treatments also increased the total contents of main nutrients such as Ca, K, P and S. Furthermore, the supply of additives into composting did not increase the concentration of trace toxic elements. At the end of the experiment, plant biomass increased by the addition of the different organic amendments, with the highest shoot biomass in soils amended with compost supplied with nanoparticles. These results suggest that the addition of compost based on agricultural residues with additives such as halloysite or biochar improves chemical properties and nutritional status of soil that favor and increase plant growth of Lollium perenne stablished in soils from the Mediterranean Region.

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Effects of four additives in pig manure composting on greenhouse gas emission reduction and bacterial community change

Cited by 97 publications

References 45 publications

Effects of Biochar and Clinoptilolite on Composition and Gaseous Emissions during the Storage of Separated Liquid Fraction of Pig Slurry

Effects of Biochar and Clinoptilolite on Composition and Gaseous Emissions during the Storage of Separated Liquid Fraction of Pig Slurry

Improving sewage sludge compost process and quality by carbon sources addition

Utilization of Inorganic Nanoparticles and Biochar as Additives of Agricultural Waste Composting: Effects of End-Products on Plant Growth, C and Nutrient Stock in Soils from a Mediterranean Region

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