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Sökning: WFRF:(Zhang Y. H.) > Högskolan i Borås

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1.
  • Duan, Y M, et al. (författare)
  • Biochar regulates bacterial-fungal diversity and associated enzymatic activity during sheep manure composting
  • 2022
  • Ingår i: Bioresource Technology. - : Elsevier BV. - 0960-8524 .- 1873-2976. ; 346
  • Tidskriftsartikel (refereegranskat)abstract
    • Aimed to evaluate the coexistence of bacterial and fungal diversity and their correlation with enzymatic activity in response to biochar. This study performed aerobic composting based on typical agricultural wastes of sheep manure with additive apple tree branch biochar at distinct concentration (0, 2.5, 5, 7.5, 10 and 12.5% corresponding from T1 to T6). The result demonstrated that appropriate amendment of biochar enriched bacterial diversity (1646-1686 OTUs) but interestingly decreased fungal diversity (542-630 OTUs) compared to control (1444 and 682 OTUs). Biochar addition enhanced all enzymatic activities and its correlation with bacterial was more complex than fungal community (786 and 359 connect edges). The dominant microbes comprised of Firmicutes (45.2-35.2%), Proteobacteria (14.0-17.5%), Basidiomycota (32.4-49.5%) and Ascomycota (11.3-37.5%) among all the treatments. Overall, biochar regulates the composting microenvironment by influencing the microbial diversity and associated enzymatic activities.
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2.
  • Awasthi, S. K., et al. (författare)
  • Sequential presence of heavy metal resistant fungal communities influenced by biochar amendment in the poultry manure composting process
  • 2021
  • Ingår i: Journal of Cleaner Production. - : Elsevier. - 0959-6526 .- 1879-1786. ; 291
  • Tidskriftsartikel (refereegranskat)abstract
    • In this study, we investigated the influence of coconut shell biochar (CSB) on heavy metal resistance fungi (HMRF) during poultry manure (PM) composting by 18 S rDNA Internal Transcribed Spacer Amplicon Sequencing analysis. Five different concentrations of CSB (2.5%, 5%, 7.5%, and 10% dry weights basis) were applied with a mixture of PM and wheat straw (5:1 ratio dry weight basis) and without CSB (CK) was used as control. The results showed that sequence number rose along with increasing CSB concentration but total relative abundance (RA) of HMRF decreased 56.33%, 74.65% in T4 and T5, respectively. However, greater RA of HMRF was found in T1 or without biochar applied treatment. The phylum of Basidiomycota was the dominant fungal community accounting for 61.14%, 6.16%, 32.18%, 74.65%, and 73.73% from T1 to T5 of the total fungi abundance, with wide presence of the Wallemiomycetes and Eurotiomycetes classes. The Wallemia and Aspergillus were the richest genus and species. Wallemia_sebi, Altemaria_alternata and Aspergillus_amoenus were detected having greater abundance among all treatments. Besides this, the network correlation pattern confirmed that the relative greater percentage of correlation among dominant HMRF community with bio-available HM and other physicochemical factors increased with the addition of biochar. There was reasonable infer that the biochar amendment in composting could constitute favorable habitat for an active fungal population. 
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3.
  • Duan, Y., et al. (författare)
  • Evaluating the impact of bamboo biochar on the fungal community succession during chicken manure composting
  • 2019
  • Ingår i: Bioresource Technology. - : Elsevier Ltd. - 0960-8524 .- 1873-2976. ; 272, s. 308-314
  • Tidskriftsartikel (refereegranskat)abstract
    • The objective of this study was to investigate the fungal community succession and variations in chicken manure (CM) compost with different concentration of bamboo biochar (BB) as additive via the using of metagenomics method. The consequent obviously revealed that Chytridiomycota, Mucoromycota, Ascomycota and Basidiomycota were the dominant phylum, while Batrachochytrium, Funneliformis, Mucor, Phizophagus and Pyronema were the pre-dominant genera in each treatment. Redundancy analyses indicated that higher dosage of biochar applied treatments has significant correlation between fungal communities and environmental factors. The diversity of fungal community was analogous but the relative abundance (RA) was inconsistent among the all treatments. In addition, the principal component analysis was also confirmed that T5 and T6 treatments have considerably correlation than other treatments. However, the mean value of RA remained maximum in higher dosage of biochar blended treatments. Ultimately, the RA of different fungal genus and species were influenced in CM compost by the BB amendment.
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4.
  • Mukesh Kumar, Awasthi, et al. (författare)
  • Biotechnological strategies for bio-transforming biosolid into resources toward circular bio-economy : A review
  • 2022
  • Ingår i: Renewable & sustainable energy reviews. - : Elsevier. - 1364-0321 .- 1879-0690. ; 156
  • Forskningsöversikt (refereegranskat)abstract
    • Biosolids are the biological organic matter extracted from various treatment processes of wastewater which are considered as a rich source of energy and nutrients. The most commonly used method for the disposal of biosolids is landfilling. But this causes the loss of valuable nutrients and creates environmental issues. Circular economy approaches provide a better way for utilization these resources in a sustainable manner. This allows maximum utilization of resources and many natural resources can be preserved and utilized for future generations. The present review provides a comprehensive illustration of biotechnological approaches for the utilization of biosolids. Various process strategies for the utilization of biosolids for the production of energy, fuels and valueadded products are discussed. The utilization of this rich organic matter under circular economy has also been described in detail.
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5.
  • Awasthi, M, et al. (författare)
  • Emerging applications of biochar : Improving pig manure composting and attenuation of heavy metal mobility in mature compost
  • 2020
  • Ingår i: Journal of Hazardous Materials. - : Elsevier B.V.. - 0304-3894 .- 1873-3336. ; 389
  • Tidskriftsartikel (refereegranskat)abstract
    • This study evaluated the effect of integrated bacterial culture and biochar on heavy metal (HM) stabilization and microbial activity during pig manure composting. High-throughput sequencing was carried out on six treatments, namely T1-T6, where T2 was single application of bacteria culture (C), T3 and T5 were supplemented with 12 % wood (WB) and wheat-straw biochar (WSB), respectively, and T4 and T6 had a combination of bacterial consortium mixed with biochar (12 % WB and 12 % WSB, respectively). T1 was used as control for the comparison. The results show that the populations of bacterial phyla were significantly greater in T6 and T4. The predominate phylum were Proteobacteria (56.22 %), Bacteroidetes (35.40 %), and Firmicutes (8.38 %), and the dominant genera were Marinimicrobium (53.14 %), Moheibacter (35.22 %), and Erysipelothrix (5.02 %). Additionally, the correlation analysis revealed the significance of T6, as the interaction of biochar and bacterial culture influenced the HM adsorption efficiency and microbial dynamics during composting. Overall, the integrated bacterial culture and biochar application promoted the immobilization of HMs (Cu and Zn) owing to improved adsorption, and enhanced the abundance and selectivity of the bacterial community to promote degradation and improving the safety and quality of the final compost product. © 2020 Elsevier B.V.
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6.
  • Awasthi, S K, et al. (författare)
  • Multi-criteria research lines on livestock manure biorefinery development towards a circular economy : From the perspective of a life cycle assessment and business models strategies
  • 2022
  • Ingår i: Journal of Cleaner Production. - : Elsevier. - 0959-6526 .- 1879-1786. ; 341
  • Tidskriftsartikel (refereegranskat)abstract
    • Livestock manure (LSM) is a profitable waste if handled sensibly, but simultaneously it imposes several environmental and health impacts if managed improperly. Several approaches have been adopted globally to cartel the problem associated with LSM management and recovery of value-added products, still, technological innovation needs further upgradation in consideration with the environment, energy, and economy. This review delivered a vibrant portrait of manure management, which includes, bioenergy generation and resource recovery strategies, their current scenario, opportunities, challenges, and prospects for future researches along with global regulations and policies. Several bioenergy generation and nutrient recoveries technologies have been discussed in details, still, the major glitches allied with these technologies are its high establishment costs, operational costs, manure assortment, and digestate handling. This review also discussed the techno-economic assessment (TEA) and life cycle assessment (LCA) of LSM management operation in the context of their economical and environmental sustainability. Still, extensive researches needed to build an efficient manure management framework to advance the integrated bioenergy production, nutrients recycling, and digestate utilization with least environmental impacts and maximal economical gain, which has critically discussed in the current review.
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7.
  • Duan, Y., et al. (författare)
  • Dynamics of fungal diversity and interactions with environmental elements in response to wheat straw biochar amended poultry manure composting
  • 2019
  • Ingår i: Bioresource Technology. - : Elsevier Ltd. - 0960-8524 .- 1873-2976. ; , s. 410-417
  • Tidskriftsartikel (refereegranskat)abstract
    • The fungal dynamics and its correlation with physicochemical and gaseous emission were investigated using metagenomics and Heat map illustrator (HEMI). Five different concentrations of wheat straw biochar (WSB) were applied to poultry manure (PM) and composted for 50 days; those without the WSB treatment were used as a control. The results revealed the dominant phyla to be Chytridiomycota, Mucoromycota, Ascomycota and Basidiomycota, while Batrachochytrium, Rhizophagus, Mucor, and Puccinia were the superior genera. In particular, the diversity of Chytridiomycota and Ascomycota was more abundant among all of the treatments. Overall, the diversity of the fungal species was correspondent, but relative abundance varied significantly among all of the composts. Principle Coordinate Analysis (PCoA) and Non-Metric Multi- Dimensional Scaling (NMDS) indicated that different concentrations of WSB applied treatments have significantly distinct fungal communities. In addition, correlation analyses of fungal interactions with environmental elements via HEMI also indicate a clear difference among the treatments. Ultimately, the relative abundance of fungal composition significantly influenced the PM compost treated by the WSB.
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8.
  • Liu, H., et al. (författare)
  • Distribution of heavy metal resistant bacterial community succession in cow manure biochar amended sheep manure compost
  • 2021
  • Ingår i: Bioresource Technology. - : Elsevier. - 0960-8524 .- 1873-2976. ; 335
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this investigation was to study the effects of cow manure biochar (CMB) on the distribution of heavy metal resistant bacterial (HMRB) community succession during sheep manure (SM) composting. The experiments were conducted with six different ratio of CMB (0%(T1), 2.5%(T2), 5%(T3), 7.5%(T4), 10%(T5) and 12% (T6) on a dry weight basis) and 0% is used as control. The results showed that the most dominant phylum were Proteobacteria (40.89%-5.65%) and Firmicutes (0.16%-93.18%), and 7.5% CMB mixed with sheep manure for best results. Thus, significant correlation was noticed among the analyzed physicochemical factors, gaseous emission and bacterial phylum in used 7.5–10% CMB applied for SM composting. Overall, the application of biochar increased the diversity of the bacterial community and promoted the degradation of organic matter. In addition, 7.5–10% CMB applied treatments showed greater immobilization of HMRB community succession during SM composting.
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9.
  • Liu, H., et al. (författare)
  • Sustainable blueberry waste recycling towards biorefinery strategy and circular bioeconomy : A review
  • 2021
  • Ingår i: Bioresource Technology. - : Elsevier BV. - 0960-8524 .- 1873-2976. ; 332
  • Forskningsöversikt (refereegranskat)abstract
    • Waste valorization using biological methods for value addition as well as environmental management is becoming popular approach for sustainable development. The present review addresses the availability of blueberry crop residues (BCR), applications of this feedstock in bioprocess for obtaining range of value-added products, to offer economic viability, business development and market potential, challenges and future perspectives. To the best of our knowledge, this is the first article addressing the blueberry waste valorization for a sustainable circular bioeconomy. Furthermore, it covers the information on the alternative BCR valorization methods and production of biochar for environmental management through removal or mitigation of organic and inorganic pollutants from contaminated sites. The review also discusses the ample opportunities of strategic utilization of BCR to offer solutions for environmental sustenance, covers the emerging trends to produce multi-products and techno-economic prospective for sustainable agronomy. 
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10.
  • Qin, S., et al. (författare)
  • Fungal dynamics during anaerobic digestion of sewage sludge combined with food waste at high organic loading rates in immersed membrane bioreactors
  • 2021
  • Ingår i: Bioresource Technology. - : Elsevier BV. - 0960-8524 .- 1873-2976. ; 335
  • Tidskriftsartikel (refereegranskat)abstract
    • In this study, the influence of distinct hydraulic retention times (HRT) and organic loading rates (OLRs) on fungal dynamics during food waste anaerobic digestion in immersed membrane-based bio-reactors (iMBR) were investigated. The organic loading rate 4–8 g VS/L/d (R1) and 6–10 g VS/L/d (R2) were set in two iMBR. T1 (1d), T2 (15d) and T3 (34d) samples collected from each bioreactor were analyzed fungal community by using 18s rDNA. In R2, T2 had the most abundant Ascomycota, Basidiomycota, Chytridiomycota and Mucoromycota. As for R1, T3 also had the richest Cryptomycota except above four kinds of fungi. Subsequently, the Principal Component Analysis (PCA) and Non-Metric Multi-Dimensional Scaling (NMDS) indicated that fungal diversity was varied among the all three phases (T1, T2, and T3) and each treatment (R1 and R2). Finally, the results showed that different OLRs and HRT have significantly influenced the fungal community. 
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