Effect on Chemical and Physical Properties of Soil Each Peat Moss, Elemental Sulfur, and Sulfur-Oxidizing Bacteria

Lee, So‐Young; Kim, Eun-Gyeong; Park, Jae-Ryoung; Ryu, Younghyun; Moon, Won; Park, Gyu-Hwan; Ubaidillah, Mohammad; Ryu, Su-Noh; Kim, Kyung Min

doi:10.3390/plants10091901

Cited by 19 publications

(10 citation statements)

References 48 publications

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“…The conducted research confirms the effectiveness of removing, i.e., nickel(II) and lead(II) ions from aqueous solution using peat as a cheap adsorbent [40]. Peat is widely used as a growing medium in soilless systems, where it performs basic functions such as plant anchoring and supply of dissolved substances, water, and oxygen, as well as a material to obtain peat extracts as a humic product for the improvement of soil [41,42].…”

Section: Introductionsupporting

confidence: 63%

Eco-Friendly and Effective Diatomaceous Earth/Peat (DEP) Microbial Carriers in the Anaerobic Biodegradation of Food Waste Products

et al. 2022

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This article aims to present the results of research on anaerobic digestion (AD) of waste wafers (WF-control) and co-substrate system—waste wafers and cheese (WFC-control), combined with digested sewage sludge. The aim of this study was to assess the physicochemical parameters of the diatomaceous earth/peat (DEP; 3:1) carrier material and to verify its impact on the enzymatic activity and the process performance. The experiment was conducted in a laboratory, in a periodical mode of operation of bioreactors, under mesophilic conditions. The results of analyses of morphological-dispersive, spectroscopic, adsorption, thermal, and microbiological properties confirmed that the tested carrier material can be an excellent option to implement in biotechnological processes, especially in anaerobic digestion. As part of the experiment, the substrates, feedstock, and fermenting slurry were subjected to the analysis for standard process parameters. Monitoring of the course of AD was performed by measuring the values of key parameters for the recognition of the stability of the process: pH, VFA/TA ratio (volatile fatty acids/total alkalinity), the content of NH4+, and dehydrogenase activity, as an indicator of the intensity of respiratory metabolism of microorganisms. No significant signals of destabilization of the AD process were registered. The highest dehydrogenase activity, in the course of the process, was maintained in the WFC + DEP system. The microbial carrier DEP, used for the first time in the anaerobic digestion, had a positive effect on the yield of methane production. As a result, an increase in the volume of produced biogas was obtained for samples fermented with DEP carrier material for WF + DEP by 13.18% to a cumulative methane yield of 411.04 m3 Mg−1 VS, while for WFC + DEP by 12.85% to 473.91 m3 Mg−1 VS.

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Section: Introductionsupporting

confidence: 63%

Eco-Friendly and Effective Diatomaceous Earth/Peat (DEP) Microbial Carriers in the Anaerobic Biodegradation of Food Waste Products

et al. 2022

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“…The amount of additive should be adjusted depending on the media. Sphagnum peatmoss is acidic (pH, 3.0-4.0) (Lee et al 2021) and may not require additional lime, depending on the type and volume of wollastonite added. Coconut coir is less acidic (pH, 4.2-6.1) (Abad et al 2002) and may not need lime to adjust the pH.…”

Section: Discussionmentioning

confidence: 99%

Dissolution of Silicon from Soilless Substrates and Additives

Dey,

Boldt,

Bugbee

2023

horts

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Silicon (Si) is a beneficial element that is usually ample in mineral soil solution, but it is minimally bioavailable from soilless substrates. Several Si additives are commercially available, but the rate of dissolution of Si is not well-characterized. The ideal additive would steadily release bioavailable Si over the crop lifecycle. We report the long-term (120 days) dissolution of Si from soilless substrates and substrate additives. Studies involving gently agitated containers with deionized water indicated that perlite, sphagnum peat, vermiculite, and coconut coir released less than 0.03 mmol Si per liter of substrate per day. Rice hulls and wollastonite (CaSiO3) had 7- to 130-times faster rates of dissolution in this system; therefore, they were further studied in peat-based media. Dissolution of Si from the addition of 1 g wollastonite per liter of peat peaked at day 10 at 2.1 mmol Si per liter of media per leaching event (15% by volume); then, it gradually decreased over 120 days. The peak dissolution of Si amended with 12% rice hulls was similar, but it gradually increased over time. The concentrations of nine heavy metals in plant tissue were compared with untreated control plants to determine wollastonite and steel slag. The concentration of some elements statistically increased, but all concentrations were well below the legal concentration limits of these elements for human consumption in the United States. These results indicate that both wollastonite and rice hulls steadily release Si for up to 4 months; therefore, they are good sources of Si for container-grown crops in soilless media.

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“…Average effluent pH from treatments CT, CW, BA, MA, and SA was as follows: 6.7 ± 0.6, 6.4 ± 0.4, 6.9 ± 0.3, 6.3 ± 0.3, and 6.6 ± 0.4. Treatment MA was slightly more acidic since the pH of sphagnum peat moss has a value around 4.0 [37]. pH has been reported to have an important role in the degradation of pollutants, as it can affect the structure and properties of materials as well as the biological activity.…”

Section: Effluent Phmentioning

confidence: 99%

Performance of Various Filtering Media for the Treatment of Cow Manure from Exercise Pens—A Laboratory Study

Álvarez-Chávez

Godbout

Rousseau

et al. 2022

Water

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During summer and winter months, pastures and outdoor pens represent the conventional means of providing exercise for dairy cows housed in tie-stall barns in the province of Québec, Canada. Unfortunately, outdoor pens require large spaces, and their leachates do not meet Québec’s environmental regulations. Therefore, there is a need to develop alternative approaches for these so-called wintering pens. A sustainable year-long approach could be a stand-off pad consisting of a filtering media to manage adequately water exiting the pad. Different filtering materials can be used and mixed (gravel, woodchips, biochar, sphagnum peat moss, sand, etc.). To find the best material and/or mixes, a laboratory study was carried out using 15 PVC pipes (5 cm in diameter and 50 cm long) to test five different combinations of materials over a 3-week period. Different contaminant-removal efficiencies were achieved with the alternative materials, including for chemical oxygen demand (11–38%), phosphates (8–23%), suspended solids (33–57%), and turbidity (23–58%). Alternative treatments with sand, sphagnum peat moss, and biochar improved the filtration capacity when compared to the conventional material (woodchips). However, after three weeks of experimentation, the treatment efficiency of sand gradually decreased for pollutants such as suspended solids and phosphates.

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Effect on Chemical and Physical Properties of Soil Each Peat Moss, Elemental Sulfur, and Sulfur-Oxidizing Bacteria

Cited by 19 publications

References 48 publications

Eco-Friendly and Effective Diatomaceous Earth/Peat (DEP) Microbial Carriers in the Anaerobic Biodegradation of Food Waste Products

Eco-Friendly and Effective Diatomaceous Earth/Peat (DEP) Microbial Carriers in the Anaerobic Biodegradation of Food Waste Products

Dissolution of Silicon from Soilless Substrates and Additives

Performance of Various Filtering Media for the Treatment of Cow Manure from Exercise Pens—A Laboratory Study

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