Cyclic and safety utilisation of Cu polluted biogas residue in saline-alkali soil

Wang, Shengxiao; Zhang, Long; Jiang, Mingli; Wang, Jie; Xia, Fuzhen; Shi, Liang; Xia, Yan; Chen, Chen; Shen, Zhenguo; Chen, Yahua

doi:10.1016/j.scitotenv.2019.135410

Cited by 8 publications

(4 citation statements)

References 71 publications

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“…The SAS was taken from the Dafeng coastal beach in Jiangsu province (32 • 59 51 N, 120 • 49 21 E). Basic information of the soil for the experiment was published in a previous article [12]. The Cu-contaminated BR was collected from the anaerobic digestion of Cu pollution remediation plants Elsholtzia splendens.…”

Section: Saline-alkali Soil and Biogas Residuementioning

confidence: 99%

Fate of Copper in Saline–Alkali Soil with Long-Term Application of Biogas Residue

et al. 2023

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The retention of copper (Cu) in saline–alkali soil (SAS) during long-term application of biogas residue (BR) with a high concentration of Cu raises concerns. In this work, the fate of Cu was detected using adsorption isotherms, scanning electron microscope—energy dispersive spectrometer, Fourier transform infrared spectrometer, X-ray diffraction, isothermal titration calorimetry, X-ray photoelectron spectroscopy, and microzone X-ray fluorescence spectrometer. The results showed that the main groups for Cu adsorption by SAS and BR were carboxyl, hydroxyl, amide and amine. The adsorption of Cu by the carboxyl group was entropy–enthalpy co-driven (|ΔH| < |TΔS|, ΔH < 0). The adsorption of Cu by the amine group was entropy-driven (|ΔH| > |TΔS|, ΔH > 0). The adsorption of Cu on the SAS and BR was achieved by organic matter rather than minerals. The degradation of BR in the SAS increases the content of Cu adsorption groups such as carboxyl and amine groups, and Cu was adsorbed on the surface or inside SAS through organic groups. This study provides further theoretical support for the application of BR in SAS.

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Section: Saline-alkali Soil and Biogas Residuementioning

confidence: 99%

Fate of Copper in Saline–Alkali Soil with Long-Term Application of Biogas Residue

et al. 2023

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“…Saline−alkali soil occurs in various landscapes and occupies approximately 10 9 hm 2 area worldwide, according to the United Nations Educational Scientific and Cultural Organization (UNESCO) and the Food and Agriculture Organization of the United Nations (FAO) data. 9 Oceans, the largest high-salt environment, occupying 71% of the Earth's surface have a salt concentration of about 0.6 M. 5 Mangrove ecosystems, commonly found on the coast of tropical and subtropical regions, are also referred to as a high-salt environment. 10,11 Xylanases found in high-salt environments tend to display a salt-tolerant nature, retaining substantial catalytic activity and/ or stability in high-salt environments.…”

Section: ■ Introductionmentioning

confidence: 99%

“…High-salt environments are highly common in the environment. Saline–alkali soil occurs in various landscapes and occupies approximately 10 9 hm 2 area worldwide, according to the United Nations Educational Scientific and Cultural Organization (UNESCO) and the Food and Agriculture Organization of the United Nations (FAO) data . Oceans, the largest high-salt environment, occupying 71% of the Earth’s surface have a salt concentration of about 0.6 M .…”

Section: Introductionmentioning

confidence: 99%

Biotechnological Aspects of Salt-Tolerant Xylanases: A Review

Cao

Zhang

Zhou

et al. 2021

J. Agric. Food Chem.

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β-1,4-Xylan is the main component of hemicelluloses in land plant cell walls, whereas β-1,3-xylan is widely found in seaweed cell walls. Complete hydrolysis of xylan requires a series of synergistically acting xylanases. High-saline environments, such as saline–alkali lands and oceans, frequently occur in nature and are also involved in a broad range of various industrial processes. Thus, salt-tolerant xylanases may contribute to high-salt and marine food processing, aquatic feed production, industrial wastewater treatment, saline–alkali soil improvement, and global carbon cycle, with great commercial and environmental benefits. This review mainly introduces the definition, sources, classification, biochemical and molecular characteristics, adaptation mechanisms, and biotechnological applications of salt-tolerant xylanases. The scope of development for salt-tolerant xylanases is also discussed. It is anticipated that this review would serve as a reference for further development and utilization of salt-tolerant xylanases and other salt-tolerant enzymes.

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“…Accordingly, a great variety of by-products are generated during the process of energy utilization of agricultural waste, such as biogas residue. Of late, with the deepening of research on energy utilization of agricultural waste, scholars started to devote themselves in the study of biogas residue disposal, in order to prevent secondary pollution [4,5].…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Energy Utilization of Agricultural Waste in China: Bibliometric Analysis by Citespace

et al. 2020

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Energy utilization of agricultural waste, due to the depletion of petroleum resources and the continuous deterioration of the ecological environment, has become an increasingly important development area at present, with broad prospects. The Citespace software was used to systematically summarize the research hotspots, development, and frontiers of researches on the energy utilization of agricultural waste in China from 1999 to 2018. The results show that (1) the number of publications in this field has increased, which includes a steady development stage, a rapid development stage, and a fluctuation and decline stage. (2) Research hotspots focused on technology for energy utilization of agricultural waste, benefits analysis of energy utilization of agricultural waste, energy conversion and upgrading path of agricultural waste, and energy potential of agricultural waste. (3) Development of research hotspots go through five stages: “technology for energy utilization of straw and the disposal of livestock and poultry waste”, “exploration of energy utilization mode of agricultural waste and the disposal of by-product from energy utilization of agricultural waste”, “technology upgrading from agricultural waste to fuel ethanol and recycling of livestock and poultry waste”, “resource recycling of by-product from biogas ” and “energy utilization of livestock and slaughterhouse waste”. It has revealed the focus in this field was changing from planting waste to breeding waste, and from unprocessed waste to by-product from energy utilization. (4) Energy utilization of slaughterhouse waste and cow manure has started to be considered as the frontiers of researches.

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Cyclic and safety utilisation of Cu polluted biogas residue in saline-alkali soil

Cited by 8 publications

References 71 publications

Fate of Copper in Saline–Alkali Soil with Long-Term Application of Biogas Residue

Fate of Copper in Saline–Alkali Soil with Long-Term Application of Biogas Residue

Biotechnological Aspects of Salt-Tolerant Xylanases: A Review

Research Progress of Energy Utilization of Agricultural Waste in China: Bibliometric Analysis by Citespace

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