Physicochemical changes in rice straw after composting and its effect on rice‐straw‐based composites

Qu, Ping; Huang, Hongying; Zhao, Yonggang; Wu, Guofeng

doi:10.1002/app.44878

Cited by 13 publications

(9 citation statements)

References 46 publications

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“…The images show broken fibrils and disrupted bundles in the cell wall complex of each pretreated sample. Our results are consistent with a previous SEM study of RS treated with ligninolytic microorganisms and ligninolytic enzymes in which similar degradation and distortions were observed . In another study of RS degradation by a microbial consortium, the SEM micrographs showed penetration of the outer structure and disruption of the substrate .…”

Section: Resultssupporting

confidence: 92%

“…The morphological changes of RS caused by bacterial culture pretreatments were analyzed using an SEM (JSM‐7800F Prime; JEOL, CA). The dried RS samples were fixed on black carbon tape and sputter‐coated with gold palladium . Images of the RS were taken using SEM with magnification ranges of 1000, 2000, and 3000 μm to visualize the broken and distorted fibrous structure of feedstock.…”

Section: Methodsmentioning

confidence: 99%

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Biological pretreatment of rice straw by ligninolytic Bacillus sp. strains for enhancing biogas production

Shah

Lee

Orts

et al. 2018

Env Prog and Sustain Energy

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Fermenting agricultural biomass, such as rice straw (RS), to methane is a promising solution to an ongoing waste problem. However, the biomass must first be pretreated to break down lignin thereby increasing accessibility of the substrate to fermentative organisms. Biological pretreatment by microorganisms represents a potentially economical strategy to prepare the biomass for fermentation. We isolated seven candidate ligninolytic Bacillus sp. strains based on their robustness for lignin degradation. The production of the ligninolytic enzymes from these strains was characterized and optimized. The bacterial strains were tested for their ability to pretreat RS and increase the yield of biomethane fermentation. It was determined that using mixed combinations of bacterial cultures was more effective than using individual strains. Overall, the study demonstrates the potential of using these Bacillus sp. strains as robust biocatalysts for processing lignocellulosic waste biomass. Significance: Newly isolated Bacillus sp. strains demonstrated an efficient degradation of lignin, Azure B dye, fast hydrolysis of rice straw, and improved biogas yields. This research suggests that, Bacillus sp. strains could be a source of novel enzymes, and an ideal candidate in bioprocessing of complex substrates”. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13036, 2019

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Section: Resultssupporting

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Biological pretreatment of rice straw by ligninolytic Bacillus sp. strains for enhancing biogas production

Shah

Lee

Orts

et al. 2018

Env Prog and Sustain Energy

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“…The suitable correlation of these techniques in the thermal behavior of compost and its evolution (mainly by humic and fulvic acids evolution) has been demonstrated [44,52]. Moreover, Qu et al [53] have been integrated into their study the use of FTIR, TGA, differential scanning calorimetry and scanning electron microscopy. In addition, Hussain et al [54], by the combined use of FTIR, UV-vis, DTA-TGA and SEM, provide substantiating evidence on the evolution of composting by combining different complementary techniques.…”

Section: Composting Evolution Research Studies By Combining Differentmentioning

confidence: 99%

Thermogravimetry Applicability in Compost and Composting Research: A Review

et al. 2021

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Composting could be a suitable solution to the correct treatment and hygienization of several organic waste, producing compost that can be used in agriculture. The evolution and maturity of this process has been studied using a variety of techniques. One very promising technique for these studies is thermogravimetric analysis. On the other hand, the compost can be used for a variety of purposes different to the agricultural one, such as direct energy by combustion or energy and products by pyrolysis and its suitability can be measured by thermogravimetric techniques. With these goals, a bibliographic analysis has been done, applying Preferred Reporting Items for Systematic Reviews and Meta-Analyses PRISMA methodology, to the use of thermogravimetric equipment applied to the study of composting and compost uses. According to the methodology for PRISMA systematic reviews, the following databases have been searched Google Scholar, Web of Science, Mendeley, Microsoft Academic, World Wide Science, Science Direct, IEEE Xplore, Springer Link, Scopus, and PubMed by using the terms “thermogravimetry AND (compost OR composting) AND NOT plastic”.

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“…Particle-size is also an important physical property of composting because it directly influences porosity and water-holding capacity [52]. According to Zhang and Sun [49], a high percentage of particles between 0.1 and 0.5 mm in the final compost mixture could increase the water-holding porosity.…”

Section: Physicochemical Properties Of the Final Compostmentioning

confidence: 99%

Combined Addition of Bovine Bone and Cow Manure: Rapid Composting of Chestnut Burrs and Production of a High-quality Chestnut Seedling Substrate

Chen

Tian

et al. 2020

Agronomy

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In China, chestnut burrs (CB) are produced at a rate of a million tons per year as the major byproduct of chestnut orchards. It is necessary to utilize the chestnut forest green waste and convert it into a valuable seedling media for the sustainable cultivation of chestnut seedlings. In this study, we composted CB with two waste products of cattle farming, namely cow manure (CM) and bovine bone (BM). We also evaluated the potential of CB compost application in chestnut forest sustainability. Results indicated that the best combination was the addition of 15% BM and 55% CM. This combination significantly improved the composting environment by increasing pH, enhancing phosphorus concentration and mineral elements such as Ca, Na, Mg and Zn, and shortened the composting period to 38 days. This combination also resulted in the highest content of citric acid-P (109.20 times than the control treatment) and the lowest content of NH 4 + -N (0.28 times than control treatment) indicating a better N and P structure of the final compost product. This combination achieved a greater degradation rate of CB cellulose (61.45%), hemicellulose (37.87%), and a more significant degradation of outer epidermis structure. When CB compost was used as a growing media, a significant decrease in photosynthesis stress of chestnut seedlings was observed, which was mainly manifested as a decrease in photochemical quenching (qP) and an increase of the maximum efficiency of PSII photochemistry under dark-adaption (Fv/Fm). Addition of 10% CB compost (in volume basis) is suggested, which resulted in the tallest chestnut seedlings (59.83 cm) with a stem diameter of 0.91 cm after six months of growth. In summary, this research provides an environmentally friendly strategy for chestnut orchard sustainability: rapid composting of CB, then immediate application as a high-quality substrate for chestnut seedlings.Agronomy 2020, 10, 288 2 of 18 step for chestnut production. The popularization of burr removal equipment has resulted in the need for intensive management of CB. Due to CB recalcitrant biodegradability and knotty spicular structure, incineration is still the main method of dealing with CB waste [3,4]. Since CB, as FGW, is rich in organic matter and minerals, it is desirable to convert it into a high value byproduct such as compost.Composting is a popular and clean method to dispose of FGW [5]. Mature FGW compost has high porosity and high organic carbon content and can be utilized as a high-quality soil amendment [6]. Shrestha et al. [7] reported that the application of compost increased soil organic carbon content, reduced CO 2 and N 2 O emissions, and increased CH 4 uptake. Chehab et al. [8] indicated that the olive FGW compost amendment resulted in an increased performance in mature olive trees and in a maximum yield of photosystem II (Fv/Fm). Composting recycles organic matter, nitrogen, phosphorous, and mineral elements in the FGW when growing seedlings [9]. In a recent study, Shalizi et al. [10] increased the biomass of Eucalyptus bentham...

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Physicochemical changes in rice straw after composting and its effect on rice‐straw‐based composites

Cited by 13 publications

References 46 publications

Biological pretreatment of rice straw by ligninolytic Bacillus sp. strains for enhancing biogas production

Biological pretreatment of rice straw by ligninolytic Bacillus sp. strains for enhancing biogas production

Thermogravimetry Applicability in Compost and Composting Research: A Review

Combined Addition of Bovine Bone and Cow Manure: Rapid Composting of Chestnut Burrs and Production of a High-quality Chestnut Seedling Substrate

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