JOURNAL OF HAZARDOUS MATERIALS
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2024
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IF 12.2
Jianbo Jiang,Jichang Wen,Ruijia Yang,Haixia Yang,Shikai Yang
Long-term mining activities in the mercury-thallium mining area of Lanmuchang, southwestern China, resulting in contamination of surrounding soils with complex toxic elements such as Tl, As, Sb, Hg, and Cd. While manure aids in pollution control and soil fertilization, its impact on Tl bioavailability in soil remains incompletely understood. This study explored the physiological changes and Tl accumulation in Capsicum annuum under combined pollution stress and application of livestock and poultry manure near the Lanmuchang mining area. The results showed that chicken manure promoted Tl accumulation in Capsicum annuum , whereas pig and cattle manure inhibited it, with pig manure exhibiting the strongest inhibitory effect. Both pig and cattle manure reduced the transpiration rate of Capsicum annuum , which decreased the driving force for Tl transport to the plant's upper parts. Additionally, manure increased organic acid secretion in Capsicum annuum roots and decreased soil Eh. This led to a reduction in Tl 3+ to the more stable Tl + , which decreased the content of exchangeable Tl form and its activity. Pig manure significantly reduced Tl content in stems, leaves, and fruits by increasing the area of the Casparian bands in Capsicum annuum roots, which hindered Tl accumulation. In contrast, chicken manure had the opposite effect. The findings of this study provide important theoretical support for scientifically guiding agricultural production safety in areas contaminated with the heavy metal Tl.
研究领域:
环境科学
·
植物生理学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2025
·
IF 8.4
Ze Deng,Jiajia Cheng,Yaqi Zhang,Yue Zhao,Zimin Wei,Caihong Song
The composting of livestock manure produces a significant amount of hydrogen sulfide (H 2 S), which can cause environmental pollution. This has become a substantial impediment to the advancement of the composting industry. In this study, Cystathionine gamma-lyase (CSE) and Cystathionine beta-synthase (CBS) enzymes were explored from the perspective of endogenous H 2 S production. This study investigated aminooxyacetic acid (AOAA) and DL-propargylglycine (PAG) as enzyme inhibitors in composting to assess the feasibility and effectiveness of H 2 S emission reduction from chicken and swine manure. The results showed that the treatment groups reduced the cumulative H 2 S emissions by a minimum of 33.52% and a maximum of 72.11%. The CSE and CBS-mediated H 2 S production reaction was inhibited by AOAA and PAG, which resulted in a significant reduction ( P < 0.05) in H 2 S emission during composting and a considerable decrease in the loss of sulfur components in gaseous form. Furthermore, the addition of AOAA and PAG affected the genes related to organic sulfur metabolism and the sulfur metabolism cycle network. This study is the first to investigate the addition of two enzyme inhibitors in composting, examining the mechanisms at different levels. These results provide new insights into the compost management strategies for the reduction of H 2 S emissions. This is a crucial area of research for the reduction of environmental pollution and the advancement of the composting industry.
研究领域:
环境科学
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生物化学
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农业工程
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微生物学
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污染控制
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DOI
PubMed
高影响因子
Catalysts
·
2019
·Vol. 9
·期 8
·644
·
IF 3.444
Jian Wang,Xian Zhou,Michael Gatheru Waigi,Fredrick Owino Gudda,Pengfei Cheng,Wanting Ling
The presence of estrogens and antibiotics in animal manure has raised considerable attention regarding their potential risks in both the soil system and human health. This study investigated the removal of estrogens (estriol (E3), bisphenol A (BPA), estradiol (17β-E2), ethinyl estradiol (EE2)), and antibiotic (sulfadimethoxine (SDM)) in livestock manure using the Fenton oxidation process. Based on the removal efficiency of estrogens and antibiotics, the optimal conditions of the Fenton oxidation process were as follows: an H2O2dosage of 10.5 mmol/g slurry, an Fe2+/H2O2molar ratio of 0.067 mol/mol, a stirring rate of 100 rpm, the feeding of an identical amount of H2O2in two steps (at 0 and 15 min), a manure/reactor ratio of 1:25, and a reaction time of 100 min. Under these conditions, the removal efficiencies of E3, BPA, 17β-E2, EE2, and SDM in cow manure were 72.1%, 88.2%, 89.4%, 73.3%, and 99.7%, respectively. In the above-mentioned optimal conditions, the simultaneous removal of estrogens and antibiotic in different manure conditions led to the removal of above 70% of targeted contaminants, except for E3 in swine and chicken manure in all the manure. The findings demonstrate the useful application of the Fenton oxidation process in the concomitant removal of antibiotics and estrogens from animal manure, which reduces the associated risks to human health and environmental safety.Keywords:antibiotic;estrogen;livestock manure;Fenton oxidation technique
研究领域:
环境科学
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生物学
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DOI
高影响因子
ENVIRONMENT INTERNATIONAL
·
2019
·
IF 7.943
Shibin Liu,Shengyan Pu,Daili Deng,Hongyan Huang,Chun Yan,Hui Ma,Bahar S. Razavi
Chromium (Cr) contamination is especially hazardous to soil biota. Application of manure and biochar has been frequently proposed to remediate Cr-contaminated soil. However, the understanding of mechanisms behind manure and biochar impacts on soil enzyme activities requires advanced visualization technologies. For the first time, we compared manure and its biochar influence on the spatial distribution of β-glucosidase, N-acetyl-glucosaminidase and phosphomonoesterase activities in Cr-contaminated soil using direct zymography. Maize was planted for 45 days in (a) soil mixed with manure, (b) soil mixed with manure-derived biochar and (c) soil without any addition. Soil pH decreased over 45 days, inducing an increase in acid soluble Cr. The concomitant decrease in β-glucosidase and N-acetyl-glucosaminidase activities explained the narrowing rhizosphere extent of enzyme activities by 13–44%, indicating that increased Cr bioavailability decreases microbial activities. A larger maize performance index and the greatest plant shoot/root ratio after biochar application suggested enhanced maize growth ( p < 0.05). In contrast, manure induced the narrowest extent of β-glucosidase and phosphomonoesterase activities due to the addition of labile organic compounds and nutrients following its application. Our study emphasizes the importance of pH on Cr bioavailability and enzyme activities and demonstrates that biochar application is more ideally suited for remediating Cr-contaminated soil.
研究领域:
环境科学
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微生物学
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DOI
PubMed
高影响因子
Sustainability
·
2021
·Vol. 13
·期 11
·6262
·
IF 3.251
Lianghu Su,Mei Chen,Guihua Zhuo,Rongting Ji,Saier Wang,Longjiang Zhang,Mingzhu Zhang,Haidong Li
As a potential adsorbent material, loose, porous livestock manure biochar provides a new approach to livestock manure resource utilization. In this study, coconut husks (CH) and livestock manure, i.e., cow dung (CD), pig manure (PM), and chicken manure (CM) were used as biomass precursors for preparation of biochar via high-temperature pyrolysis and CO2activation. Characterization technologies, such as scanning electron microscopy, Fourier transform infrared spectroscopy, adsorption–desorption isotherms, and pore size distributions, were used to study the microscopic morphologies and physicochemical properties of unactivated and activated biochar materials. The results showed that CD biochar provides better adsorption performance (up to 29.81 mg H2S/g) than CM or PM biochar. After activation at 650° for 1 h, the best adsorption performance was 38.23 mg H2S/g. For comparison, the CH biochar removal performance was 30.44 mg H2S/g. Its best performance was 38.73 mg H2S/g after 1 h of activation at 750 °C. Its best removal performance is equivalent to that of CH biochar activated at a temperature that is 100 °C higher. Further material characterization indicates that the H2S removal performance of livestock-manure–derived biochar is not entirely dependent on the specific surface area, but is closely related to the pore size distribution.Keywords:livestock manure;Biochar;physical activation;hydrogen sulfide removal
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2019
·
IF 5.589
Leiyu Feng,Xuyao Li,Xutao Chen,Yujun Huang,Kangshou Peng,Yuxuan Huang,Yuanyuan Yan,Yinguang Chen
Ordered nitrogen-doped mesoporous carbon (NMC) was successfully synthesized with pig manure as the precursor. The resulting NMC materials exhibited excellent capacity of adsorption and potassium persulfate (PS) activation when used as catalysts for the oxidative degradation of tetracycline antibiotics (tetracycline hydrochloride (TH) as the target). For an initial TH concentration of 35 mg/L, the maximum adsorption capacity of NMC material prepared at 700 °C (NMC700) was 122.0 mg/g, and the degradation efficiency in the PS reaction system was 94.8% within 120 min. Investigation of the mechanism indicated that the NMC700 material with specific surface area (SSA) of 275.5 m 2 /g and 0.7% graphitic N content, provided a large amount of active sites for adsorption and catalytic oxidation of TH. Based on the results of selective degradation and electron paramagnetic resonance (EPR) experiments, a non-radical pathway for the degradation of pollutants was proposed. Chronoamperometry evaluation also supported the conclusion that the NMC material enhanced electron transfer to activate persulfate, accelerating the removal of TH.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Yuanyuan Zhao,Pan Wang,Dan Wang,Wenting Zhao,Junjuan Wang,Zhiwen Ge,Ye Liu,Xiaoyan Zhao
This study aimed to investigate in vitro rat fecal fermentation behavior of pectic polymers and glycans that constitute typical pectic fragments, i.e. homogalacturonan (HG), arabinan (AB), arabinogalactan (AG), rhamnogalacturonan (RG), and xyloglucan (XG). Results showed that galacturonic acid proportion of HG (73.85 mol%) was the highest, followed by pectin (67.99 mol%), whereas arabinose (70.23 mol%) and galactose (86.22 mol%) enriched in AB and AG, respectively. Absolute quantitative microbiome revealed that Bacteroides showed dramatic growth in RG and AG; higher absolute abundances of Bifidobacterium (5.06E+09 and 3.36E+09 copies/g feces, respectively) were found in AB and XG; Escherichia Shigella , Enterococcus , and Klebsiella were inhibited after fermentation with pectin and HG by >95 %. Untargeted metabolomics indicated that the differential metabolite in AG and RG were 7-ketodeoxycholic acid and 9,10-epoxyoctadecanoic acid, respectively, both of which were positively related to arabinose and galactose ( p < 0.001). Besides, another characteristic monosaccharide, rhamnose was positively correlated with succinic acid ( p < 0.05), and Parvibacter ( p < 0.001). Overall, this work help to understand the interactions among pectin structure, gut microbiota and metabolites, thereby guiding the targeted design of the nutrient-directed pectins in future personalized diets.
研究领域:
营养学
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微生物学
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代谢组学
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产品关联
DOI
PubMed
高影响因子
FOOD SCIENCE AND BIOTECHNOLOGY
·
2023
·Vol. 32
·期 14
·2093-2104
·
IF 2.9
Sun Yuhao,Hu Yaru,Hu Danqi,Xiao Zhuqian,Wang Hongpeng,Huang Jun,Mao Jianwei
Three different Akebia trifoliata fruit juices were prepared, and their effects on modulation of human fecal microbiota were elucidated through an anaerobic fermentation in vitro. Results indicated that the introduction of inoculatedly-fermented Akebia trifoliata fruit juice promoted short-chain fatty acids productivity. Fecal microbiota analysis demonstrated up-regulations for abundances of Limosilactobacillus , Megamonas , Bifidobacterium , and Escherichia_Shigella , and down-regulations for numbers of Bacteroides , Prevotella_9 , Parasutterella , and Sutterella . Correlation analysis confirmed relationships among sample components, short-chain fatty acids productivity, and microbial abundances, suggesting that sugars and organic acids stimulated growth of Actinobacteriota and suppressed proliferation of Proteobacteria , thus uncovering the underlying mechanism for the better ability of inoculatedly-fermented Akebia trifoliata fruit juice to regulate microbiota structure. Besides, clusters of orthologous groups of proteins analysis indicated that metabolite biosynthesis, energy metabolism, homeostasis maintenance and other physiological functions were ameliorated.
研究领域:
微生物学
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食品科学
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肠道健康
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DOI
高影响因子
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
·
2019
·
IF 1.463
Jing Nie,Peter Yaro,Kaifeng He,Haihong Hu,Su Zeng
The purpose of this study was to study the excretion stereoselectivity of triticonazole enantiomers in rat urine and faeces. Six male Sprague-Dawley (SD) rats were administrated 50 mg/kg rac-triticonazole. Rats urine and faeces were separately and quantitatively collected at the following intervals: 0–3, 3–6, 6–9, 9–12, 12–24, 24–36 and 36–48 h. The faeces samples were homogenized in an aqueous solution containing 0.2% DMSO at the ratio of 1 g: 40 mL. An aliquot of 100 μL rats urine or faeces homogenate was spiked and mixed with 6.0 μL of 1.00 μg/mL flusilazole as an internal standard. The triticonazole enantiomers in urine and faeces were determined by using an HPLC/MS–MS after samples preparation. The excreted amounts of enantiomers in the urine showed a significant difference (P < 0.05) except for 3–6 h. The cumulative excretion rate (Xu0→24) in urine was 26.43 ± 0.08% and 37.58 ± 0.11% for R-(−)- and S-(+)-triticonazole, respectively, indicating high enantioselectivity (P < 0.001). The cumulative excretion rate (Xu0→72) in faeces was 6.93 ± 0.03% and 6.77 ± 0.03% for R-(−)- and S-(+)-triticonazole, respectively, without a difference. The results showed that the total cumulative percentage of triticonazole enantiomers accounted for in urine and faeces was 64.00 ± 0.13% and 13.70 ± 0.32%, the urinary excretion of R-(−)- and S-(+)-triticonazole were significantly different and S-(+)-triticonazole was preferentially excreted. However, the faecal excretion of the enantiomers showed no difference.
研究领域:
药理学
·
分析化学
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DOI
高影响因子
CHROMATOGRAPHIA
·
2019
·Vol. 83
·期 2
·305-310
·
IF 1.552
Zhang Chaozheng,Fan Longxing,Zhao Hua
Abstract An increasing number of researchers are focusing on short-chain fatty acids (SCFAs), which are closely related to various aspects of the human body. This study presented a pretreatment method for mouse feces that combined acidification and extraction. Then, a direct injection process into gas chromatography was developed. The limits of detection using this method are 0.5–0.8 mg L −1 , and the corresponding sample contents are 0.015–0.024 mg g −1 . The limits of quantification are 0.8–1.0 mg L −1 , and the corresponding sample contents are 0.024–0.030 mg g −1 . The linear relationship of the calibration curve is good and has a correlation coefficient of > 0.999. The recovery rate of the spiked standard is 80–102%. This method had been successfully applied to analysing and determining SCFAs in biological samples. Graphic Abstract
研究领域:
分析化学
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生物化学
·
医学研究
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Junmei Luo,Shufeng Bo,Yanan Qin,Qingda An,Zuoyi Xiao,Shangru Zhai
The excessive discharge of goat manure has placed a serious burden on the environment and accordingly how to transform this type of waste into functional materials is of practical significance yet remains challenging. Herein, surface-loaded cobalt/biochar (Co-GMC-900) was successfully prepared for the first time by carbonizing Co-impregnated goat manure waste. The Co-GMC-900 exhibited excellent performance in activating peroxymonosulfate (PMS) to degrade ciprofloxacin (CIP), which could remove 96.5% of CIP within 30 min. Additionally, in the cycle experiments, the Co-GMC-900 presented robust stability due to the synergy of excellent magnetism, inherent ellipsoid of goat manure and strengthened interactions between cobalt nanoparticles and graphitized biochar network. In the light of a series of characterization analyses, carbonization temperature played a crucial role in tailoring the physicochemical properties (crystal structure, graphitized degree, the ratio of C=O groups and specific surface area) of composites. Based on detected active species, radical process (SO 4 •− , • OH and O 2 •− ) in conjunction with the non-radical process ( 1 O 2 and charge transfer) resulted in the CIP degradation, in which the radical process mainly contributed to the degradation process, and Co 0 played a leading role in the radical process. Favorably, this work might provide great promise for utilizing goat manure waste in a valuable manner and simultaneously achieving environmental remediation.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Ying Shi,Saier Wang,Man Xu,Xinli Yan,Junbiao Huang,Hong-wei Wang
Neonicotinoid pesticides (NEOs) are the most widely used insecticides in the world and pose a serious threat to ecological systems. Thus, the development of an efficient and sustainable technique for their removal is urgently needed. In this study, a novel biochar was prepared by pyrolysis of Tenebrio molitor frass and activated with KOH at 650 (TMFBC-650A), 750 (TMFBC-750A) and 850 °C (TMFBC-850A). Among them, TMFBC-750A showed the best adsorption performance, and the adsorption capacities for thiacloprid (THI), nitenpyram (NIT) and dinotefuran (DIN) were 155.08 mg·g −1 , 195.86 mg·g −1 , 325.81 mg·g −1 , respectively. The isotherms for the adsorption of NIT and THI fit the Langmuir model quite well, while DIN fits the Freundlich model. Moreover, the adsorption of THI, NIT and DIN was well fitted by the pseudofirst-order kinetic model. The physicochemical characterization analysis demonstrated that the adsorption process of NEOs by TMFBC might be mainly controlled by micropore filling, π-π electron donor–acceptor interactions and functional group interactions (H-bonding, covalent bonding and hydrophobic interactions). Additionally, the thermodynamic parameters suggested that NEO adsorption in this work was a spontaneous, endothermic and randomly increasing process. TMFBC also exhibited a high selective adsorption capacity regardless of solution pH and inorganic ion strength concentrations. The regenerated TMFBC (via synergistic ultrasound/ethanol) could sustainably and efficiently absorb NEOs in reuse cycles, suggesting that TMFBC has excellent reusability and stability. These results indicated that TMFBC can be a potential and sustainable adsorbent for neonicotinoid pesticide removal.
研究领域:
环境科学
·
农业科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）