Microaerobic process has been proven to be an alternative pretreatment for the anaerobic digestion (AD) process in several studies. In this study, the effect of thermophilic microaerobic pretreatment (TMP) on the AD of corn straw was investigated. Results indicated that TMP process obviously improved the methane yield. The maximum methane yield was obtained at the oxygen loads of 5ml/g VSsubstrate, which was 16.24% higher than that of untreated group. The modified first order equation analysis showed the TMP process not only accelerated the hydrolysis rates but also reduced the lag-phase time of AD process. The structural characterization analysis showed cellulosic structures of corn straw were partly disrupted during TMP process. The crystallinity indexes were also decreased. In addition, large or destroyed pores and substantial structural disruption were observed after pretreatment. The results showed that TMP is an efficient pretreatment method for the AD of corn straw.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2014.10.072 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficient removal of cationic malachite green using co-pyrolyzed corn straw biochar-montmorillonite composites.
J Environ Manage
January 2025
Department of Civil and Environmental Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA.
New efficient and sustainable methods for the removal of malachite green (MG) from environmental media are needed. In this study, corn straw was co-pyrolyzed with montmorillonite under a variety of conditions (400, 500, 600, and 700 °C and 10-40 wt% montmorillonite), without any use of toxic chemicals, to produce a series of biochar-clay composites. Characteristics of the composites that make them promising contaminant sorbents include a uniform lamellar-particle micromorphology, enhanced mesoporous structure and surface area (53.
View Article and Find Full Text PDFEnhancing cellulose and hemicellulose degradation in wheat straw composting by inoculation with : key factors and microbial community dynamics.
Environ Technol
January 2025
Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, Harbin, People's Republic of China.
Actinobacteria are widely used in aerobic composting of straw waste because of their good degradation effect on lignocellulose. However, there are few studies on the degradation effect of on straw. In this study, six laboratory-scale treatments were conducted: corn straw composting with inoculation (CSI), rice straw composting with inoculation (RSI), and wheat straw composting with inoculation (WSI).
View Article and Find Full Text PDFInfluence of Different Environmental Factors on the Aging of Corn Straw/Polycarbonate (PPC)/Polylactic Acid (PLA) Composite Materials.
ACS Omega
January 2025
School of Materials Science and Engineering, Beihua University, Jilin 132000, China.
This study aims to gain a deeper understanding of the effects of different environmental factors on the mechanical properties, surface morphology, and microstructure of corn straw/polycarbonate/poly(lactic acid) composite materials. Three different aging methods, namely wet heat aging, natural aging, and oxidative thermal aging, were used to investigate the effects of high temperature, humidity, and light on the mechanical properties, surface morphology, and microstructure of the composite materials. The surface morphology, chemical, thermal properties, and crystallization behavior of aged samples were analyzed using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis, and multifunctional X-ray diffraction, respectively.
View Article and Find Full Text PDFObtaining Microcellulose from Solid Agro-Waste by Ball Mill Assisted by Light Acid Hydrolysis Process.
ACS Omega
January 2025
Postgraduate Program in Chemistry, Universidade Federal da Paraíba, Cidade Universitária, João Pessoa 58051-900, Brazil.
Cellulose, the most abundant biopolymer on Earth, is biodegradable, nontoxic, and derived from renewable sources. Its properties and applications depend on the extraction methods and sources, making plant waste reuse a sustainable production option. This study aimed to assess the potential of cowpea pod skin () as a source of microcellulose (CPMC) using a chemical-mechanical process involving ball milling combined with acid hydrolysis.
View Article and Find Full Text PDFSoil fertility differences due to tillage methods modulate maize yield formation at different planting densities.
Sci Rep
January 2025
Inner Mongolia Agricultural University, No. 275, XinJian East Street, Hohhot, 010019, China.
To address the problems of planting density and low soil nutrient content in maize cultivation and production in western Inner Mongolia. This study aims to elucidate the regulatory mechanism by which soil fertility augmentation affects maize yield formation under a variety of planting densities. In this study, nine soil fertility conditions were established by deep tillage, no-tillage and in situ straw return.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!