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Wang F, Kang Y, Fu D, Singh RP. Effect evaluation of different green wastes on food waste digestate composting and improvement of operational conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-32386-y. [PMID: 38361099 DOI: 10.1007/s11356-024-32386-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/04/2024] [Indexed: 02/17/2024]
Abstract
This study attempted to determine the influence of diverse green wastes on food waste digestate composting and the improvement of operational conditions. Various effects of the green wastes (GW), with different types and sizes, initial substrate mixture C/N ratios, compost pile heights, and turning frequencies on the food waste digestate (FWD) composting were examined in the current work. The findings showed that the use of street sweeping green waste (SSGW) as an additive can maintain the thermophilic stage of the FWD composting for 28 days, while the end-product contained the greatest amounts of total phosphorus (TP, 2.29%) and total potassium (TK, 4.61%) and the lowest moisture content (14.8%). Crushed SSGW (20 mm) enabled the FWD composting to maintain the longest thermophilic period (28 days), achieving the highest temperature (70.2 °C) and seed germination index (GI, 100%). Adjusting the initial substrate mixture C/N ratio to 25, compost pile height to 30 cm, and turning frequency to three times a day could enhance the efficiency and improve the fertilizer quality of the co-composting of the FWD and SSGW. This study suggested that co-composting of FWD and SSGW (FWD/SSGW = 2.3, wet weight) is a promising technique for the treatment of municipal solid waste and provided significant theoretical data for the application of composting.
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Affiliation(s)
- Fei Wang
- School of Civil Engineering, Southeast University, Nanjing, 211189, People's Republic of China
| | - Yangtianrui Kang
- School of Civil Engineering, Southeast University, Nanjing, 211189, People's Republic of China
| | - Dafang Fu
- School of Civil Engineering, Southeast University, Nanjing, 211189, People's Republic of China
| | - Rajendra Prasad Singh
- School of Civil Engineering, Southeast University, Nanjing, 211189, People's Republic of China.
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Sharma P, Singh SP. Identification and profiling of microbial community from industrial sludge. Arch Microbiol 2022; 204:234. [PMID: 35362813 DOI: 10.1007/s00203-022-02831-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 03/05/2022] [Accepted: 03/06/2022] [Indexed: 02/03/2023]
Abstract
The purpose of this study is to identify microbial communities in pulp and paper industry sludge and their metagenomic profiling on the basis of; phylum, class, order, family, genus and species level. Results revealed that the dominant phyla in 16S rRNA Illumina Miseq analysis inside sludge were Anaerolinea, Pseudomonas, Clostridia, Bacteriodia, Gammaproteobacteria, Spirochetia, Deltaproteobacteria, Spirochaetaceae, Prolixibacteraceae and some unknown microbial strains are also dominant. Metagenomics is a molecular biology-based technology that uses bioinformatics to evaluate huge gene sequences extracted from environmental samples to assess the composition and function of microbiota. The results of metabarcoding of the V3-V4 16S rRNA regions acquired from paired-end Illumina MiSeq sequencing were used to analyze bacterial communities and structure. The present work demonstrates the potential approach to sludge treatment in the open environment via the naturally adapted microorganism, which could be an essential addition to the disposal site. In summary, these investigations indicate that the indigenous microbial community is an acceptable bioresource for remediation or detoxification following secondary treatment. This research aims at understanding the structure of microbial communities and their diversity (%) in highly contaminated sludge to perform in situ bioremediation.
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Affiliation(s)
- Pooja Sharma
- Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar (A Central) University, Lucknow, 226 025, Uttar Pradesh, India.
| | - Surendra Pratap Singh
- Plant Molecular Biology Laboratory, Department of Botany, Dayanand Anglo-Vedic (PG) College, Chhatrapati Shahu Ji Maharaj University, Kanpur, 208 001, India.
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Shang Y, Wu X, Wang X, Wei Q, Ma S, Sun G, Zhang H, Wang L, Dou H, Zhang H. Factors affecting seasonal variation of microbial community structure in Hulun Lake, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150294. [PMID: 34536882 DOI: 10.1016/j.scitotenv.2021.150294] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Microbial communities play an important role in water quality regulation and biogeochemical cycling in freshwater ecosystems. However, there is a lack of research on the seasonal variation in lake water microorganisms in cold environments. In this study, 16S rRNA gene high-throughput sequencing was used to explore the microbial community and its influencing factors in Hulun Lake water during different seasons. The results showed that Proteobacteria, Actinobacteria, and Bacteroidetes were the most important phyla in the microbial community of Hulun Lake, but they had significant seasonal differences in their distribution. In addition, significant seasonal differences were observed in the α diversity of microorganisms, with bacterial diversity being higher in winter than in summer. Changes in environmental variables were significantly correlated with changes in the microbial community, and the rapid changes in temperature, pH, and dissolved oxygen are potentially the major factors influencing seasonal bacterial diversity trends. The findings of the present study enhance our understanding of the microbial communities in alpine lake ecosystems and are of great significance for the management and protection of lake ecosystems.
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Affiliation(s)
- Yongquan Shang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Xiaoyang Wu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Xibao Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Qinguo Wei
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Shengchao Ma
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Guolei Sun
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Huanxin Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Lidong Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China
| | - Huashan Dou
- Hulunbuir Academy of Inland Lakes in Northern Cold & Arid Areas, Hulunbuir, China.
| | - Honghai Zhang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong Province, China.
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Matos JS, de Aráujo LP, Allaman IB, Lôbo IP, de Oliva ST, Tavares TM, de Almeida Neto JA. Evaluation of the reduction of methane emission in swine and bovine manure treated with black soldier fly larvae (Hermetia illucens L.). ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:480. [PMID: 34240260 DOI: 10.1007/s10661-021-09252-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
The study evaluates Hermetia illucens larvae's ability to decrease direct methane emissions and nutrients from cattle and swine manure. Hermetia illucens larvae were put into fresh cattle and swine manure, and the same conditions, without larvae, for the control treatment were established. The methane emissions were measured until the first prepupae appeared. The methane emissions from the bioconversion of animal manure by Hermetia illucens larvae were up to 86% lower than in the control treatments (conventional storage). The cumulative methane emissions from cattle and swine manure bioconversion were 41.4 ± 10.5 mg CH4 kg-1 and 134.2 ± 17.3 mg CH4 kg-1, respectively. Moreover, Hermetia illucens larvae could reduce 32% of dry matter, 53% nitrogen, 14% phosphorus, and 42% carbon in swine manure. Meanwhile, in cattle manure, reductions of 17% of dry matter, 5% of nitrogen, 11% of phosphorus, and 15% of carbon and pH reductions in both swine and cattle manure were found. Thus, the production of larvae was higher in swine manure than cattle manure. Furthermore, the larvae frass from swine manure was appropriate for agricultural use, unlike the larvae frass from cattle manure requiring further processing. These results reveal the ability of Hermetia illucens larvae to mitigate methane emissions from animal manure and show it to be a promising technology for manure treatment, with great potential to promote a circular economy in the livestock sector.
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Affiliation(s)
- Joan Sanchez Matos
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil.
| | - Lara Pinto de Aráujo
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Ivan Bezerra Allaman
- Department of Exact and Technology Sciences, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Ivon Pinheiro Lôbo
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Sergio Telles de Oliva
- Laboratory of Environmental Analytical Chemistry, Chemistry Institute (LAQUAM), Universidade Federal da Bahia (UFBA), Campus Universitário de Ondina, R. Barão de Jeremoabo 147, Salvador, BA, 40170-115, Brazil
| | - Tania Mascarenhas Tavares
- Laboratory of Environmental Analytical Chemistry, Chemistry Institute (LAQUAM), Universidade Federal da Bahia (UFBA), Campus Universitário de Ondina, R. Barão de Jeremoabo 147, Salvador, BA, 40170-115, Brazil
| | - Jose Adolfo de Almeida Neto
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
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Shang Y, Wu X, Wei Q, Dou H, Wang X, Chen J, Zhang H, Ma S, Zhang H. Total Arsenic, pH, and Sulfate Are the Main Environmental Factors Affecting the Microbial Ecology of the Water and Sediments in Hulun Lake, China. Front Microbiol 2020; 11:548607. [PMID: 33072010 PMCID: PMC7541820 DOI: 10.3389/fmicb.2020.548607] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/24/2020] [Indexed: 01/29/2023] Open
Abstract
Bacteria have the metabolic potential to produce a diverse array of secondary metabolites, which have important roles in biogeochemical cycling processes. However, for Hulun Lake and the rivers that enter into it, the bacterial community structures and their effects have not previously been widely studied, limiting our ecological understanding of this habitat. To address this, we have analyzed the bacterial communities in the water ecosystem of the Hulun Lake Basin. 16S rRNA high-throughput sequencing identified 64 phyla, 165 classes, 218 orders, 386 families, and 740 genera of bacteria across all samples. The dominant phyla in the central area of the lake were Proteobacteria, Actinobacteria, Firmicutes, and Cyanobacteria, while in all other areas, Proteobacteria, Actinobacteria, and Bacteroidetes were dominant. The microbial community structures were significantly affected by environmental factors [arsenic (As), pH, and sulfate (SO4 2-)] and their location in the lake. The species richness in the sediments of Hulun Lake was higher than in the water, and this ecosystem harbored the highest proportion of unclassified sequences, representing unclassified bacteria. This study provides basic data for future investigations into the Hulun lake ecosystem and for water microbial monitoring and protection measures.
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Affiliation(s)
- Yongquan Shang
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Xiaoyang Wu
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Qinguo Wei
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Huashan Dou
- Hulunbuir Academy of Inland Lakes in Northern Cold & Arid Areas, Hulunbuir, China
| | - Xibao Wang
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Jun Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Huanxin Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Shengchao Ma
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Honghai Zhang
- College of Life Sciences, Qufu Normal University, Qufu, China
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Yakovlev AY, Kruglikova AA, Chernysh SI. Calliphoridae Flies in Medical Biotechnology. ACTA ACUST UNITED AC 2019. [DOI: 10.1134/s0013873819030023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang X, Wang W, Gao Q, Wang X, Lei C, Zhu F. Chrysomya megacephala larvae feeding favourably influences manure microbiome, heavy metal stability and greenhouse gas emissions. Microb Biotechnol 2018. [PMID: 29536673 PMCID: PMC5902325 DOI: 10.1111/1751-7915.13253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Chrysomya megacephala is a saprophagous fly whose larvae can compost manure and yield biomass and bio‐fertilizer simultaneously. However, there are concerns for the safety of the composting system, that is risk of diseases spread by way of manure pathogens, residue of harmful metals and emission of greenhouse gases. Microbiota analysis and heavy metal speciation by European Communities Bureau of Reference were evaluated in raw, C. megacephala‐composted and natural stacked swine manure to survey pathogenic bacterial changes and mobility of lead and cadmium in manure after C. megacephala feeding; the emission rate of CH4 and N2O from manure during C. megacephala composting and natural stacking was also measured. C. megacephala composting altered manure microbiota, reduced the risk of pathogenic bacteria and maintained the stability, and microbiota changes might be associated with heavy metal fractions, especially in Pseudomonas and Prevotella. In addition, C. megacephala‐composting significantly reduced the emission rate of CH4 and N2O in comparing with natural stacking situation and the first two days should be the crucial period for CH4 and N2O emission measurement for manure treatment by C. megacephala. Moreover, OTU26 and Betaproteobacteria were changed after C. megacephala composting which might play a role in emission of CH4 and N2O, respectively.
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Affiliation(s)
- Xiaoyun Wang
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wanqiang Wang
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qiao Gao
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiaoping Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chaoliang Lei
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan, 430070, China.,Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Fen Zhu
- Hubei International Scientific and Technological Cooperation Base of Waste Conversion by Insects, Huazhong Agricultural University, Wuhan, 430070, China
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