检索结果-南通市图书馆

Enhanced organic degradation and microbial community cooperation by inoculating Bacillus licheniformis in low temperature composting

引用

Journal of Environmental Sciences 2024年第9期143卷 189-200页

作者： Jing Su Kaiyun Zhou Wenjie Chen Shaoqi Xu Ziwei Feng Yuan Chang Xiaoyan Ding Yi Zheng Xingling Tao Ake Zhang Yue Wang Ji Li Guochun Ding Yuquan Wei Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing 210042China College of Resources and Environmental Science Beijing Key Laboratory of Biodiversity and Organic FarmingChina Agricultural UniversityBeijing 100193China Organic Recycling Institute(Suzhou)of China Agricultural University Wuzhong DistrictSuzhou 215128China Fuyang Academy of Agricultural Sciences Fuyang 236065China

Microbial activity and interaction are the important driving factors in the start-up phase of food waste composting at low temperature.The aim of this study was to explore the effect of inoculating Bacillus licheniformis on the degradation of organic components and the potential microbe-driven mechanism from the aspects of organic matter degradation,enzyme activity,microbial community interaction,and microbial metabolic function.The results showed that after inoculating B.licheniformis,temperature increased to 47.8℃ on day2,and the degradation of readily degraded carbohydrates(RDC)increased by 31.2%,and the bioheat production increased by 16.5%.There was an obvious enhancement of extracellular enzymes activities after inoculation,especially amylase activity,which increased by 7.68 times on day 4.The inoculated B.licheniformis colonized in composting as key genus in the start-up phase.Modular network analysis and Mantel test indicated that inoculation drove the cooperation between microbial network modules who were responsible for various organic components(RDC,lipid,protein,and lignocellulose)degradation in the start-up phase.Metabolic function prediction suggested that carbohydrate metabolisms including starch and sucrose metabolism,glycolysis/gluconeogenesis,pyruvate metabolism,etc.,were improved by increasing the abundance of related functional genes after inoculation.In conclusion,inoculating B.licheniformis accelerated organic degradation by driving the cooperation between microbial network modules and enhancing microbial metabolism in the start-up phase of composting.

关键词： Microbial agent Organic matter degradation Microbial interaction food waste Low temperature composting

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Feasibility of housefly larvae-mediated vermicomposting for recycling food waste added digestate as additive

引用

Journal of Environmental Sciences 2023年第6期128卷 150-160页

作者： Guangyu Cui Fan Lü Tao Lu Hua Zhang Pinjing He Institute of waste Treatment and Reclamation Tongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Shanghai Engineering Research Center of Multi-source Solid wastes Co-processing and Energy Utilization Shanghai 200092China

The development of methods for the efficient treatment and application of food waste digestate is an important research goal.Vermicomposting via housefly larvae is an efficient way to reduce food waste and achieve its valorization,however,studies on the application and performance of digestate in vermicomposting are rarely.The present study aimed to investigate the feasibility of the co-treatment of food waste and digestate as an additive via larvae.Restaurant food waste(RFW)and household food waste(HFW)were selected to assess the effects of waste type on vermicomposting performance and larval quality.waste reduction rates of 50.9%–57.8%were observed in the vermicomposting of food waste mixed with digestate at a ratio of 25%,which were slightly lower than those for treatments without the addition of digestate(62.8%–65.9%).The addition of digestate increased the germination index,with a maximum value of 82%in the RFW treatments with 25%digestate,and decreased the respiration activity,with a minimum value of 30 mg-O_(2)/g-TS.The larval productivity of 13.9%in the RFW treatment system with a digestate rate of 25%was lower that without digestate(19.5%).Materials balance shows that larval biomass and metabolic equivalent had decreasing trends as the amount of digestate increased and HFW vermicomposting exhibited lower bioconversion efficiency than that of RFW treatment system regardless of the addition of digestate.These results suggest that mixing digestate at a low ratio(25%)during vermicomposting of foodwaste especially RFW could lead to considerable larval biomass and generate relatively stable residues.

关键词： Biogas digestate food waste Housefly larvae Larvae valorization Vermicomposting

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

food waste and associated carbon footprint:evidence from Chinese universities

引用

Ecosystem Health and Sustainability 2022年第1期8卷 228-241页

作者： Long Qian Qingling Rao Hongbo Liu Breda McCarthy Li Xian Liu Lingen Wang Institute of food and Strategic Reserves Nanjing University of Finance&EconomicsNanjingChina Institute of Finance and Economics Shanghai University of Finance&EconomicsShanghaiChina Academy of Strategies of Innovation and Development Anhui UniversityHefeiChina College of Business Law and Governance James Cook UniversityTownsvilleQLDAustralia Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijingChina

In recent years,there has been widespread concern regarding the carbon footprint(CF)of food waste due to the key impact of CF on climate change,particularly as China’s food waste is rising with its economic development.China has the largest scale of higher education in the world,and the amount of food waste in university canteens is considerable and cannot be ignored.This study attempts to assess the carbon footprint(CF)of food waste at Chinese universities for the first time based on a national survey.It is estimated that 1.55 million tons of food were wasted in Chinese university canteens in 2018,based on 9,192 samples covering 29 provinces in China.The associated CF was 2.51 Mt CO2eq.The top two food categories contributing to the total CF were meat and grains,accounting for 46.28%and 36.52%,respectively.Furthermore,the location of the university was significantly associated with the CF of plate waste.It also indicated that household income,meal satisfaction,sex,education,meal days,and food-saving campaigns were important factors influencing the CF of food waste.This study highlights areas that can help reduce the environmental impact of plate waste.It also provides targeted measures to reduce the associated CF of food waste in Chinese universities.

关键词： food waste plate waste carbon footprint university canteens China

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insights into the changes of amino acids,microbial community,and enzymatic activities related with the nutrient quality of product during the composting of food waste

引用

Frontiers of Environmental Science & Engineering 2023年第3期17卷 93-105页

作者： Ying Xue Keke Xiao Xiang Wu Mei Sun Yifei Liu Bei Ou Jiakuan Yang School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

This study systematically investigated the changes of amino acids as the composting process of food waste proceeded.It is found that the addition of 0.3 g/g total solids of food waste achieved the highest seed germination index of the product(268%).The microbial community results indicated that the abundance of amino acid metabolism sequences remained at high levels during the whole composting process.Proline was identified as the key amino acid related with the nutrient quality of product during the composting of food waste.Further plant germination and hydroponic experiments found,that compared with those without the addition of proline,the addition of 50 mg/L proline increased seed germination rate by 20%,increased shoot length by 3%,increased root biomass of seedlings by 82%,and increased leaf biomass of seedlings by 76%,respectively.Firmicutes,γ-Pseudomonadota,Chloroflexi and Planctomycetes were the key identified bacteria related with the increase of proline during the composting of food waste.Meanwhile,the enzymatic tests of the activities of superoxide dismutase,peroxidase and malondialdehyde indicated that proline did not cause oxidative damage on the growth of plants.This study provided novel insights into the changes of amino acids,microbial community,and enzymatic activities related with the nutrient quality of product during the composting of food waste.

关键词： Composting food waste Amino acids Microbial community Enzymatic activity Nutrient quality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ambient aerobic pretreatment enhances food waste fermentation broth for high content perchlorate biodegradation

引用

Progress in Natural Science:Materials International 2023年第6期33卷 891-900页

作者： Lijie Cheng Ningbo Gao Zhiqiang Ge Cui Quan School of Energy and Power Engineering Xi'an Jiaotong University Science and Technology on Aerospace Chemical Power Laboratory Hubei Institute of Aerospace

The biodegradation of perchlorate(ClO4-) in contaminated environments often requires extra electron donors and carbon sources.This study investigates the use of ambient aerobic pretreatment technology combined with anaerobic fermentation of food waste to produce fermentation broth of food waste(FBFW) and enhance ClO4-biodegradation capacity.The results demonstrated that FBFW,prepared through aerobic pretreatment,exhibited excellent performance in ClO4-biodegradation.With an electron donor-to-acceptor ratio of 1.2,a remarkable ClO4-removal efficiency of 92.38% was achieved at 72 h when using FBFW after a 6-day aerobic pretreatment.This can be attributed to the higher proportion of lactic acid and lower ammonium concentration.Furthermore,FBFW,serving as an electron donor and carbon source after aerobic pretreatment,enhanced the abundance of microbial taxa belonging to Firmicutes and Aeromonas,known for their involvement in electron transfer and reduction processes related to ClO4-.This study highlighted the potential of aerobic pretreatment of food waste combined with anaerobic fermentation to produce FBFW and enhance ClO4-reduction,offering new perspectives for food waste utilization and the remediation of high ClO4-contamination.

关键词： Ambient aerobic pretreatment food waste Perchlorate biodegradation Lactic acid Ammonium

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Power-to-chemicals:sustainable liquefaction of food waste with plasma-electrolysis

引用

Frontiers of Chemical Science and Engineering 2023年第5期17卷 594-605页

作者： Wenquan Xie Xianhui Zhang Dengke Xi Rusen Zhou Size Yang Patrick Cullen Renwu Zhou Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Fujian Engineering Research Center for EDAFujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection TechnologyXiamen Key Laboratory of Multiphysics Electronic InformationInstitute of Electromagnetics and AcousticsXiamen UniversityXiamen 361005China School of Chemical and Biomolecular Engineering University of SydneySydney NSW 2006Australia State Key Laboratory of Electrical Insulation and Power Equipment Centre for Plasma BiomedicineXi’an Jiaotong UniversityXi’an 710049China

The increasing amount of food waste from various industrial,agricultural,and household sources is an environmental burden if managed inappropriately.Numerous waste management approaches have been developed for the disposal of food waste,but still suffer from either high cost,production of toxic by-products,or secondary environmental pollutions.Herein,we report a new and sustainable plasma electrolysis biorefinery route for the rapid and efficient liquefaction of food waste.During the plasma electrolysis process,only the solvent is added to liquefy the waste,and anions in the waste can contribute to catalyzing the biowaste conversion.While liquefying the waste,the highly reactive species produced in the plasma electrolysis process can efficiently reduce the content of O,N,and Cl in the liquefied products and oxidize most of the metals into solid residues.Especially,the removal rate of Na and K elements was greater than 81%,which is significantly higher than using the traditional oil bath liquefaction,resulting in a relatively high-quality biocrude oil with a high heating value of 25.86 MJ·kg^(-1).Overall,this proposed strategy may provide a new sustainable and eco-friendly avenue for the power-to-chemicals valorization of food waste under benign conditions.

关键词： plasma electrolysis food waste liquefaction resource recovery

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Inhibition mechanisms of ammonia and sulfate in high-solids anaerobic digesters for food waste treatment: Microbial community and element distributions responses

引用

Chinese Chemical Letters 2023年第2期34卷 342-348页

作者： Likui Feng Weixin Zhao Yu Liu Yan Chen Shufei He Jing Ding Qingliang Zhao Liangliang Wei State Key Laboratory of Urban Water Resources and Environment(SKLUWRE) School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Baicheng Municipal Party Committee Office Baicheng 137000China

The horizontal flow anaerobic digester indicated that high ammonia (2923 mg/L) and SO42-(3653 mg/L)would influence the performance of methane production with food waste as substrates.Therefore,bottle anaerobic digestion reactors were carried out to investigate the effect of ammonia/sulfate concentrations on the methane production.Experimental results manifested that the anaerobic digesters with an ammonia concentration of 3500 mg/L or sulfate of 1600 mg/L showed the best performance of methane production,with an average methane yield of 0.32 and 0.33 L (g VS)^(-1)d^(-1),respectively.Specifically,a higher ammonia (6500 mg/L) or sulfate (1600-3500 mg/L) level hindered the bioconversion of C from liquid to gas phase (2.68%or 1.73%CH_(4)-Gas,respectively),while insignificantly for the hydrolyzation of C and N from solid to liquid phase.Similar to sulfate,high ammonia nitrogen seriously inhibited the methanation process,leading to a significant carbon accumulation in the anaerobic reactor,especially for propionic acid.The predominant archaea Methanosarcina at genus level indicated that aceticlastic methanogenesis was the major methanogenic pathway.Meanwhile,high ammonia level suppressed the activity of Methanosarcina,while modest sulfate improved H_(2)-consuming methanogens activity.A large fraction of unclassified bacteria within the Firmicutes (43.78%-63.17%) and Bacteroidetes (24.20%-33.30%) phylum played an important role in substrates hydrolysis.

关键词： Anaerobic digestion Ammonia/sulfate inhibition Element transformation food waste Microbial community

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Treatment of wastewater from food waste hydrothermal carbonization via Fenton oxidization combined activated carbon adsorption

引用

waste Disposal and Sustainable Energy 2022年第3期4卷 205-218页

作者： Tianchi Shen Mi Yan Yuhao Xia Ruixiong Hu Yayong Yang Cheng Chen Feng Chen Dwi Hantoko Institute of Energy and Power Engineering College of Mechanical EngineeringZhejiang University of TechnologyHangzhou310014China

Hydrothermal carbonization(HTC)of food waste can produce hydrochar for further utilization as high-quality fuel or carbon materials,but the by-product of liquid effluent,named HTC wastewater,has a high chemical oxygen demand(COD)content and other organic pollutants.This study focused on the feasibility of Fenton oxidation combined with activated carbon(AC)to reduce COD in HTC wastewater.The effects of different parameters including pH,dosage of hydrogen peroxide,molar ratio of Fe^(2+)/H_(2)O_(2),and reaction time were tested and discussed.Eventually,through the optimized Fenton oxidation(pH=3,H_(2)O_(2)dosage=1.5 mol/L,Fe^(2+)/H_(2)O_(2)=1:15,reaction time=60 min)combined optimized AC adsorption process(AC dosage=30 g/L),the COD value reduced from 42,000 mg/L to 3075 mg/L,indicating a COD removal efficiency of 92.7%and a color removal ratio of 91.9%,respectively.The comparison of GC/MS(gas chromatography mass spectrometer)and FTIR(Fourier transform infrared spectrometer)of liquid residual from different treatment methods also indicated that the types of organic substances in HTC wastewater were significantly reduced through Fenton oxidation and AC adsorption.

关键词： food waste Hydrothermal carbonization Fenton Adsorption wastewater

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Inoculation of Chlorella and food waste Improves the Physio-Morphological Features of Red Pepper by Regulating Activating Antioxidant Defense System

引用

Phyton-International Journal of Experimental Botany 2023年第9期92卷 2699-2711页

作者： Sang-Mo Kang Shifa Shaffique Muhammad Imran Su-Mi Jeon Shabir Hussain Wani Muhammad Aaqil Khan Peter Odongkara Eun-Hae Kwon Yosep Kang Joon-Ik Son Won-Chan Kim In-Jung Lee Department of Applied Biosciences Kyungpook National UniversityDaegu41566Korea Biosafety Division National Institute of Agriculture ScienceRural Development AdministrationJeonju54874Korea Department of Technical Support Daegu City Agricultural Technology CenterDaegu41159Korea Department of Chemical and Life Sciences Qurtuba University of Science and Information TechnologyPeshawarPakistan Mountain Research for Field Crops Khudwani Shere-e-Kashmir University of Agriculture Sciences and Technology SrinagarJamu and KashmirIndia Corporate Affiliated Research Institute Seyen Co.Ltd.Kyungsan38561Korea

food waste is recognized as a valuable source for potential agricultural applications to supply organic matter and nutrients to arable soil.However,the information on the combined application of food waste and the plant growth-promoting bacterial strain,Chlorella,related to plant metabolic features and sodium chloride content in arable soil is limited.The present study was conducted to investigate the exogenous application of food waste along with Chlorella,which improved the physio-morphological features of red pepper.Our results revealed that this combination enhanced the organic matter in the soil,ultimately improving the fertility rate of the soil,and the physio-morphological features,such as chlorophyll a content(24.5±0.7),root(7.8±0.7)cm and shoot length(12.1±0.7)cm,fresh weight(2.1±0.05)g,dry weight(0.19±0.05)g,mineral contents,and hormonal concentration(ABA by up to 2 folds).The combined treatment also minimized free radicals via the activation of the intrinsic antioxidant series cascade and electrolyte leakage.Our findings showed that adding Chlorella and food wastes improved growth characteristics and can be used as a green bio-fertilizer for sustainable agriculture.

关键词： food waste Chlorella hormone antioxidant

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Wood waste biochar promoted anaerobic digestion of food waste:focusing on the characteristics of biochar and microbial community analysis

引用

Biochar 2022年第1期4卷 152-163页

作者： Chao Zhang Rui Yang Meichen Sun Shicheng Zhang Mingjing He Daniel C.W.Tsang Gang Luo Department of Environmental Science&Engneering Shanghai Key Lab Atmospher Particle Pollution&PreventionFudan UniversityShanghai 200438People’s Republic of China Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic waste Shanghai 200438People’s Republic of China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092People’s Republic of China Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Research Institute for Future food The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina

Anaerobic digestion(AD)has been considered as a promising technique for food waste(FW)recycling.However,the accumulation of volatile fatty acids(VFAs)restricts the stability of anaerobic reactors.The present study investigated the use of biochar produced at different conditions(750℃-30 min,750℃-60 min,750℃-120 min,550℃-60 min,650℃-60 min,850℃-60 min,950℃-60 min)for enhancing the AD of FW.Batch experiments showed that all the biochar increased the methane production rates and biochar obtained at 750℃-60 min resulted in the highest enhance-ment by 21.5%.It was further showed surface oxygen-containing functional groups and graphitization degree of biochar were the critical factors for improving methane production.Microbial analysis showed that biochar addi-tion formed different microbial communities,and Methanosaeta,Romboutsia,and norank_f_Anaerolineaceae were enriched,which might be correlated with direct interspecies electron transfer(DIET).This research showed biochar could enhance the AD of FW and also revealed the main characteristics of biochar relating with the enhancement of AD.

关键词： Anaerobic digestion food waste Wood waste biochar Methane production Sustainable waste management

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：