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Geobatteries in environmental biogeochemistry: Electron transfer and utilization

Environmental Science and Ecotechnology 2024年第6期22卷 38-51页

作者： Shihao Cui Rui Wang Qing Chen Lorenzo Pugliese shubiao wu Department of Agroecology Aarhus UniversityBlichers Allé208830TjeleDenmark Department of Biological and Chemical Engineering Aarhus UniversityGustav Wieds Vej 108000AarhusDenmark Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation College of Resources and Environmental SciencesChina Agricultural UniversityBeijing100193China

The efficiency of direct electron flow from electron donors to electron acceptors in redox reactions is significantly influenced by the spatial separation of these ***,a class of redox-active substances naturally present in soil-water systems,act as electron reservoirs,reversibly donating,storing,and accepting *** capability allows the temporal and spatial decoupling of redox half-reactions,providing a flexible electron transfer *** this review,we systematically examine the critical role of geobatteries in influencing electron transfer and utilization in environmental biogeochemical *** redox-active centers within geobatteries,such as quinone-like moieties,nitrogen-and sulfur-containing groups,and variable-valent metals,possess the potential to repeatedly charge and *** characterization techniques,ranging from qualitative methods like elemental analysis,imaging,and spectroscopy,to quantitative techniques such as chemical,spectroscopic,and electrochemical methods,have been developed to evaluate this reversible electron transfer ***,current research on the ecological and environmental significance of geobatteries extends beyond natural soil-water systems(e.g.,soil carbon cycle)to engineered systems such as water treatment(e.g.,nitrogen removal)and waste management(e.g.,anaerobic digestion).Despite these advancements,challenges such as the complexity of environmental systems,difficulties in accurately quantifying electron exchange capacity,and scaling-up issues must be addressed to fully unlock their *** review underscores both the promise and challenges associated with geobatteries in responding to environmental issues,such as climate change and pollutant transformation.

关键词： Geobattery Electron transfer Redox reactions

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Phosphorus recovery from biogas fermentation liquid by Ca-Mg loaded biochar

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Journal of Environmental Sciences 2015年第3期27卷 106-114页

作者： Ci Fang Tao Zhang Ping Li Rongfeng Jiang shubiao wu Haiyu Nie Yingcai Wang Key Laboratory of Plant–Soil Interactions of Ministry of Education College of Resources and Environmental SciencesChina Agricultural University College of Engineering China Agricultural University College of Science China Agricultural University

Shortage in phosphorus （P） resources and P wastewater pollution is considered as a serious problem worldwide. The application of modified biochar for P recovery from wastewater and reuse of recovered P as agricultural fertilizer is a preferred process. This work aims to develop a calcium and magnesium loaded biochar （Ca-Mg/biochar） application for P recovery from biogas fermentation liquid. The physico-chemical characterization, adsorption efficiency, adsorption selectivity, and postsorption availability of Ca-Mg/biochar were investigated. The synthesized Ca-Mg/biochar was rich in organic functional groups and in CaO and MgO nanoparticles. With the increase in synthesis temperature, the yield decreased, C content increased, H content decreased, N content remained the same basically, and BET surface area increased. The P adsorption of Ca-Mg/biochar could be accelerated by nano-CaO and nano-MgO particles and reached equilibrium after 360min. The process was endothermic, spontaneous, and showed an increase in the disorder of the solid-liquid interface. Moreover, it could be fitted by the Freundlich model. The maximum P adsorption amounts were 294.22, 315.33, and 326.63 mg/g. The P adsorption selectivity of Ca-Mg/biochar could not be significantly influenced by the typical pH level of biogas fermentation liquid. The nano-CaO and nano-MgO particles of Ca-Mg/biochar could reduce the negative interaction effects of coexisting ions. The P releasing amounts of postsorption Ca-Mg/biochar were in the order of Ca-Mg/B600 〉 Ca-Mg/B4S0 〉 Ca-Mg/B300. Results revealed that postsorption Ca-Mg/biochar can continually release P and is more suitable for an acid environment.

关键词： Phosphorus Ca-Mg loaded biochar Biogas fermentation liquid Recovery

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Towards the control of necrotic enteritis in broiler chickens with in-feed antibiotics phasing-out worldwide

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Animal Nutrition 2015年第1期1卷 1-11页

作者： Shawkat A.M'Sadeq shubiao wu Robert A.Swick Mingan Choct School of Environmental and Rural Science Poultry Cooperative Research Centre

Poultry production has undergone a substantial increase compared to the livestock industries since ***, the industry worldwide is now facing challenges with the removal of in-feed antibiotics completely or gradually, as the once well-controlled poultry diseases have re-emerged to cause tremendous loss of production. Necrotic enteritis(NE) is one of the most important diseases which costs the industry over two billion dollars annually. In this paper, we review the progress on the etiology of NE and its control through dietary modifications, pre-and probiotics, short chain fatty acids, and vaccination. The other likely measures resulted in the most advances in the toxin characterization are also discussed. Vaccine strategies may have greater potential for the control of NE mainly due to clearer etiology of NE having been elucidated in recent years with the identification of necrotic enteritis toxin B-like(NetB) toxin. Therefore, the use of alternatives to in-feed antibiotics with a better understanding of the relationship between nutrition and NE, and limiting exposure to infectious agents through biosecurity and vaccination, might be a tool to reduce the incidence of NE and to improve gut health in the absence of in-feed antibiotics. More importantly, the combinations of different measures may achieve greater protection of birds against the disease. Among all the alternatives investigated, prebiotics, organic acids and vaccination have shown improved gastrointestinal health and thus, have potential for the control of NE.

关键词： Necrotic enteritis Clostridium perfringens Broiler chicken Antibiotic

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Large-Scale Discovery of Non-conventional Peptides in Maize and Arabidopsis through an Integrated Peptidogenomic Pipeline

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Molecular Plant 2020年第7期13卷 1078-1093页

作者： Shunxi Wang Lei Tian Haijun Liu Xiang Li Jinghua Zhang Xueyan Chen Xingmeng Jia Xu Zheng shubiao wu Yanhui Chen Jianbing Yan Liuji wu National Key Laboratory of Wheat and Maize Crop Science Collaborative Innovation Center of Henan Grain CropsCollege of AgronomyHenan Agricultural UniversityZhengzhou 450002China National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China School of Environmental and Rural Science University of New EnglandArmidaleNSW 2351Australia

Non-conventional peptides(NCPs),which include small open reading frame-encoded peptides,play critical roles in fundamental biological *** this study,we developed an integrated peptidogenomic pipeline using high-throughput mass spectra to probe a customized six-frame translation database and applied it to large-scale identification of NCPs in plants.A total of 1993 and 1860 NCPs were unambiguously identified in maize and Arabidopsis,*** NCPs showed distinct characteristics compared with conventional peptides and were derived from introns,3′UTRs,5′UTRs,junctions,and intergenic ***,our results showed that translation events in unannotated transcripts occur more broadly than previously *** addition,we found that dozens of maize NCPs are enriched within regions associated with phenotypic variations and domestication selection,indicating that they potentially are involved in genetic regulation of complex traits and domestication in *** together,our study developed an integrated peptidogenomic pipeline for large-scale identification of NCPs in plants,which would facilitate global characterization of NCPs from other *** identification of large-scale NCPs in both monocot(maize)and dicot(Arabidopsis)plants indicates that a large portion of plant genome can be translated into biologically functional molecules,which has important implications for functional genomic studies.

关键词： non-conventional peptides small open reading frames peptidogenomics mass spectrometry six-frame translation plants

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Optimization and evaluation of an air-recirculated stripping for ammonia removal from the anaerobic digestate of pig manure

Optimization and evaluation of an air-recirculated stripping...

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第七届中国畜牧科技论坛

作者： Liu liang Pang changle wu shubiao Dong renjie College of Agriculture and Biotechnology China Agricultural University Chongqing Academy of Animal Sciences Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture College of EngineeringChina Agricultural University

An air-recirculated stripping involved two processes and did not require any ***,stripping CO decreased the buffer capacity of the anaerobic digestate,thereby reducing the amount of lime used to achieve a high ***,lime was added to increase pH and remove ammonia from the anaerobic digestate of pig *** increased from 8.03 to8.86 by stripping CO in the first process(gas-to-liquid ratio = 180) and further reached12.38 in the second process(gas-to-liquid ratio = 300).During process optimization,the maximum ammonia removal efficiency reached 96.78%with a lime dose of 22.13 *** value was close to 98.25%,which was the optimal result predicted by response surface methodology using the software Design-Expert 8.05 *** these results indicated that air-recirculated stripping coupled with absorption was a promising technology for the removal and recovery of nitrogen in the anaerobic digestate of pig manure.

关键词： Anaerobic digestate of pig manure Response surface methodology Air-recirculated stripping

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太阳能加温和沼液回用沼气工程的生态效益评价

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农业工程学报 2017年第5期33卷 205-210页

作者：吴树彪刘莉莉刘武陈理董仁杰中国农业大学工学院北京100083

为综合评价新型生态清洁技术应用下的规模沼气工程的综合生态效益,该文以北京市顺义区D沼气工程(同时应用沼液循环回用技术和太阳能-地源热泵增温保温技术)为研究对象,利用能量系统图和能值评价体系,从经济效益、环境效益和可持续性3个... 详细信息

为综合评价新型生态清洁技术应用下的规模沼气工程的综合生态效益,该文以北京市顺义区D沼气工程(同时应用沼液循环回用技术和太阳能-地源热泵增温保温技术)为研究对象,利用能量系统图和能值评价体系,从经济效益、环境效益和可持续性3个方面对该系统进行了综合性能值分析,分析了沼液循环回用和太阳能-地源热泵增温保温清洁技术的应用对规模化沼气工程生态经济效益的影响。结果表明:太阳能-地源热泵增温保温技术在规模化沼气工程中的使用,不可再生购买资源投入减少8.80%,系统可持续性提升18.75%,有效替代了化石能源的使用,生态经济效益明显。同时,沼液循环回用技术的应用,可使地下水投入减少65%,在沼气工程周边土地无法充分消纳该沼气工程产生沼液的条件下,可节省1.77E+05美元/a的农田消纳后的剩余沼液排污处理费,环境负荷率减小68.52%,能值可持续指标由0.03增为0.38,系统自我维持能力提升。因此,沼液循环回用和太阳能-地源热泵技术的应用对该沼气工程系统的经济、环境和生态效益有很大改善作用。

关键词：沼气太阳能热泵系统加热沼液循环回用能值分析

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沼气工程高效稳定运行技术现状及展望

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农业机械学报 2015年第7期46卷 187-196,202页

作者：李伟吴树彪 Hamidou Bah 庞昌乐董仁杰中国农业大学工学院北京100083 法拉纳高等农牧学院农业推广系

总结分析了沼气工程相关技术现状和技术需求,并对其未来发展进行了展望。我国的原料收贮和预处理技术亟待升级,仍需大量的科研投入以研发关键的核心技术装备。实现沼气工程运行情况的有效监测和及时预警,以及开发合适的微量元素添加剂... 详细信息

总结分析了沼气工程相关技术现状和技术需求,并对其未来发展进行了展望。我国的原料收贮和预处理技术亟待升级,仍需大量的科研投入以研发关键的核心技术装备。实现沼气工程运行情况的有效监测和及时预警,以及开发合适的微量元素添加剂和功能微生物菌剂对推动我国沼气工程的高效稳定运行具有重要意义。试验并研发新型膜材料和对常规材料的共混与改性处理是提高沼气膜分离提纯能力的主要手段。沼液的资源化利用技术是摆脱沼气工程可持续发展瓶颈的关键。结合沼气工程产业发展需求,充分论证技术瓶颈,合理配置科技资源,加大科技攻关投入,实现自主化技术研发、标准化工程设计、工厂化装备制造、模块化安装建设以及专业化安装调试等标准化集成,同时创新沼气工程技术的应用模式能更好地推动沼气工程技术的发展。

关键词：沼气工程预处理监测微量元素菌剂沼液

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规模化沼气工程预警监控系统设计与实验

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农业机械学报 2018年第6期49卷 318-324页

作者：吴树彪张相雨王海粟孙昊董仁杰中国农业大学农业部可再生能源清洁化利用技术重点实验室北京100083

针对目前规模化沼气工程中以挥发性脂肪酸(VFAs)和碳酸氢盐(TIC)质量浓度为指标预警的监测装置自动化程度较低的现状,基于Nordmann滴定法和工业控制计算机,设计了一种可检测厌氧发酵过程中pH值、VFAs和TIC,并根据异常进行修复的自动预... 详细信息

针对目前规模化沼气工程中以挥发性脂肪酸(VFAs)和碳酸氢盐(TIC)质量浓度为指标预警的监测装置自动化程度较低的现状,基于Nordmann滴定法和工业控制计算机,设计了一种可检测厌氧发酵过程中pH值、VFAs和TIC,并根据异常进行修复的自动预警诊治系统。从系统所要实现的功能出发,确定系统开发的总体设计方案,选用Visual Studio 2017软件开发平台,采用C#高级语言进行工控机软件编程,将整个系统分为数据远程传输模块、总控制模块、显示模块、运动控制模块、滴定模块、清洗模块、进样模块、I/O控制模块、数据采集模块等9大模块,不仅可以实现规模化沼气工程厌氧发酵过程的自动监测、预警、运行状态诊断及发送,用户也可远程管理沼气工程的运行。实验验证结果表明,实际鸡粪发酵液的检测准确度和精密度均在95%以上,高于手动滴定结果。

关键词：规模化沼气工程厌氧发酵挥发性脂肪酸碳酸氢盐 Nodmann滴定法监控系统

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影响高粱饲用价值主要内在因素及其对策

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动物营养学报 2016年第1期28卷 1-8页

作者：张福耀吴树彪柳青山山西省农业科学院高粱研究所高粱遗传与种质创新山西省重点实验室晋中030600 山西省农业科学院农业生物技术中心太原030031 新英格兰大学环境与农村科学学院阿米德尔2351

大量研究结果显示,饲用高粱含有3种物质不利于高粱在动物体内的消化,一是酚类化合物,二是醇溶蛋白,三是植酸。本文从3类化合物的特征、对消化酶的抑制作用、醇溶蛋白与淀粉以及氨基酸的消化率、植酸和植酸磷以及酶制剂在高粱型畜禽饲粮... 详细信息

大量研究结果显示,饲用高粱含有3种物质不利于高粱在动物体内的消化,一是酚类化合物,二是醇溶蛋白,三是植酸。本文从3类化合物的特征、对消化酶的抑制作用、醇溶蛋白与淀粉以及氨基酸的消化率、植酸和植酸磷以及酶制剂在高粱型畜禽饲粮中的应用等方面,就高粱在动物饲料应用的研究动态和进展进行了简要综述。

关键词：高粱动物饲料酚类化合物醇溶蛋白植酸

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温拌橡胶沥青胶结料高温性能研究

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石油沥青 2016年第1期30卷 12-16页

作者：吴树标广东冠粤路桥有限公司广州511450

橡胶沥青混合料（HMA）的生产温度要高于普通混合料20-30℃,但引入温拌技术（WMA）后,会显著降低其生产温度,有利于保护环境和节约能源。本文采用五种不同来源的基质沥青按照橡胶粉掺量15%制备橡胶沥青,分别加入两种温拌添加剂Asphamin... 详细信息

橡胶沥青混合料（HMA）的生产温度要高于普通混合料20-30℃,但引入温拌技术（WMA）后,会显著降低其生产温度,有利于保护环境和节约能源。本文采用五种不同来源的基质沥青按照橡胶粉掺量15%制备橡胶沥青,分别加入两种温拌添加剂Asphamin和Sasobit,并用旋转薄膜烘箱（RTRO）进行短期老化,采用DSR试验和布氏旋转黏度试验评价温拌橡胶沥青高温性能。结果显示：Sasobit温拌剂降低了橡胶沥青胶结料的黏度,而Aspha—min却增加了胶结料的黏度;温拌剂与橡胶沥青反应的时间延长会导致胶结料黏度发生变化,黏度增大或减小与基质沥青种类有关;Aspha—min和Sasobit的加入提高了胶结料的高温破坏温度,但两种温拌剂提高程度差异不大;温拌橡胶沥青胶结料的高温性能主要受基质沥青影响,与温拌剂种类关系不大;老化前与老化后的破坏温度存在线性关系,但相关系数较低。

关键词：温拌橡胶沥青高温性能破坏温度黏度

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