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Synergistic effects of chemical additives and mature compost on reducing H_2S emission during kitchen waste composting

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Journal of Environmental Sciences 2024年第5期139卷 84-92页

作者： yongdi liu Haihou Wang Hao Zhang Yueyue Tao Rui Chen Sheng Hang Xiaoyan Ding Meidi Cheng Guochun Ding Yuquan Wei Ting Xu Ji Li 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 Suzhou Academy of Agricultural Sciences Institute of Agricultural Sciences in Taihu Lake DistrictSuzhou 215155China Technical Centre for Soil Agriculture and Rural Ecology and EnvironmentMinistry of Ecology and EnvironmentBeijing 100012China College of Chemistry and Chemical Engineering Yantai UniversityYantai 264005China

Additives could improve composting performance and reduce gaseous emission,but few studies have explored the synergistic of additives on H_(2)S emission and compost *** research aims to make an investigation about the effects of chemical additives and mature compost on H_(2)S emission and compost maturity of kitchen waste *** results showed that additives increased the germination index value and H_(2)S emission reduction over 15 days and the treatment with both chemical additives and mature compost achieved highest germination index value and H_(2)S emission reduction(85%).Except for the treatment with only chemical additives,the total sulfur content increased during the kitchen waste *** proportion of effective sulfur was higher with the addition of chemical additives,compared with other *** relative abundance of H_(2)S-formation bacterial(Desulfovibrio)was reduced and the relative abundance of bacterial(Pseudomonas and Paracoccus),which could convert sulfur-containing substances and H_(2)S to sulfate was improved with *** the composting process with both chemical additives and mature compost,the relative abundance of Desulfovibrio was lowest,while the relative abundance of Pseudomonas and Paracoccus was *** together,the chemical additives and mature compost achieved H_(2)S emission reduction by regulating the dynamics of microbial community.

关键词： Kitchen waste composting Sulfur conversion Chemical additives Mature compost Microbial community

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菌丝球强化耐盐好氧颗粒污泥构建、性能及其微生物群落特性

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环境工程学报 2024年第6期18卷 1638-1651页

作者：陆青青刘勇弟厉巍高会杰王纲华东理工大学资源与环境工程学院工业废水无害化与资源化国家工程研究中心上海200237 华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室上海200237 上海化学工业区中法水务发展有限公司上海201400 中石化(大连)石油化工研究院有限公司大连116045

基于Martelella ***-3中度嗜盐功能细菌耦合活性污泥这一耐盐有机污染物强化降解体系,探究菌丝球外源投加对构建耐盐好氧颗粒污泥系统(SAGS)和PAHs类污染物去除的影响。以杭州湾潮间带污泥为接种源,在盐度为5%,以葡萄糖和菲为碳源的条... 详细信息

基于Martelella ***-3中度嗜盐功能细菌耦合活性污泥这一耐盐有机污染物强化降解体系,探究菌丝球外源投加对构建耐盐好氧颗粒污泥系统(SAGS)和PAHs类污染物去除的影响。以杭州湾潮间带污泥为接种源,在盐度为5%,以葡萄糖和菲为碳源的条件下筛选得到一株耐盐真菌Penicillium sp.L22。发现在pH为7,盐度为3%的条件下,菌丝球的生长量和降解性能都达到最佳。将上述菌丝球投加到Martelella ***-3菌和活性污泥强化体系,进一步研究发现,相比于对照组(AD-3菌+活性污泥),实验组(菌丝球+AD-3菌+活性污泥)虽然造粒缓慢且形成的颗粒较小(平均粒径减小19.3%),但是形成的颗粒结构更加密实稳定,反应器生物量大(VSS增加3.2倍),污泥沉降性更好(SVI_(5)减小24.4%)。通过研究胞外多聚物(EPS)发现,菌丝球的投加增加了反应体系中污泥胞外蛋白质含量,从而促进了污泥团聚。在有机污染物降解方面,相比于对照组,菌丝球实验组在第三阶段COD去除率提升20.5%,代表性模式污染物菲的比降解活性提升53.1%。采用高通量基因测序技术分析发现,Martelella属的相对丰度与污泥的比降解活性成显著正相关,表明添加菌丝球可能是通过强化AD-3菌(Martelella属)的持留从而强化菲的降解。此外,菌丝球Penicillium属和菲的降解也成显著正相关。本研究揭示了真菌菌丝球强化SAGS系统的群落演替特征,为高盐有机废水的强化处理提供了技术支持和理论依据。

关键词：耐盐好氧颗粒污泥菌丝球高盐有机废水高通量基因测序技术

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石墨烯介导铁还原菌耦合针铁矿体系降解四氯化碳

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华东理工大学学报（自然科学版） 2024年第1期50卷 46-53页

作者：刘乔丹李辉刘勇弟华东理工大学资源与环境工程学院上海200237 上海大学环境与化学工程学院上海200444

研究了氧化石墨烯(GO)、还原氧化石墨烯(rGO)及双氧水改性还原氧化石墨烯(rGO(H__(2)O_(2)))3种石墨烯介导铁还原菌耦合针铁矿体系的铁还原过程以及该体系强化降解四氯化碳的机理。结果表明:不同石墨烯均能有效促进铁还原菌还原针铁矿... 详细信息

研究了氧化石墨烯(GO)、还原氧化石墨烯(rGO)及双氧水改性还原氧化石墨烯(rGO(H__(2)O_(2)))3种石墨烯介导铁还原菌耦合针铁矿体系的铁还原过程以及该体系强化降解四氯化碳的机理。结果表明:不同石墨烯均能有效促进铁还原菌还原针铁矿和铁还原菌耦合针铁矿体系对四氯化碳的降解,其中rGO的促进作用最为显著,其机理主要与石墨烯表面的醌类等基团具有更强的电子传递能力、吸附态Fe(Ⅱ)浓度高及能生成还原能力强的次生铁矿蓝铁矿等因素有关。

关键词：针铁矿石墨烯铁还原菌电子穿梭体还原脱氯

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Higher N_(2)O production in sequencing batch reactors compared to continuous stirred tank reactors:effect of feast-famine cycles

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Frontiers of Environmental Science & Engineering 2023年第4期17卷 143-154页

作者： Xinjie Yan Xunyu Shen Jipeng Wang Jinlong Zhuang Yu Wang Jinchi Yao Hong liu yongdi liu James P.Shapleigh Wei Li National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery East China University of Science and TechnologyShanghai 200237China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China School of Environmental and Safety Engineering Changzhou UniversityChangzhou 213164China Shanghai Huayi Group Co.Ltd. Shanghai 201108China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200237China Department of Microbiology Cornell UniversityIthacaNY 14850USA

Nitrous oxide(N_(2)O)is a potent greenhouse gas that can be emitted during the biological treatment of *** this study,a comparison of the long-term performance characteristics and N_(2)O production of sequencing batch reactors(SBR)and continuous stirred tank reactors(CSTR)during nitrite-based denitrification was *** was found that both reactors had NO_(2)^(-)-N removal efficiencies over 99.9%,but the N_(2)O-N emissions from the SBR reached~2.3%of the removal nitrite-N load,while in the CSTR it never exceeded 0.1%.High frequency sampling during one operation cycle of the SBR demonstrated that the N_(2)O accumulation ratio was~0.1%during the feast period,increased to~1.9%in the first five hours of the famine period,and then gradually reached~2.3%at the end of *** experiments showed that limiting extracellular electron donor is required for N_(2)O accumulation in cells from the SBR-famine period and that cells from the CSTR do not accumulate N_(2)O when either nitrite or carbon is *** notable difference in the two reactor communities was the high level of accumulation of intracellular granules,most likely polyhydroxybutyrate(PHB),in cells during the feast period in the *** assembly and binning found that one genome(PRO1),which is a Thauera,accounted for over half the metagenomic reads in both *** shifts in gene regulation nor community composition explained the observed differences in reactor performance suggesting some post-transcriptional regulation obligatorily linked to antecedent conditions underly increased N_(2)O production in the SBR.

关键词： Denitrifying N_(2)O mitigation SBR CSTR Meta-omics PHB

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Fluorinated inverse opal carbon nitride combined with vanadium pentoxide as a Z-scheme photocatalyst with enhanced photocatalytic activity

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Chinese Chemical Letters 2022年第8期33卷 3797-3801页

作者： Ningkai Ding Bin Chen Liang Zhou Lingzhi Wang yongdi liu Jinlong Zhang Juying Lei State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and TechnologyShanghai 200237China

In this work,Z-scheme V_(2)O_(5) loaded fluorinated inverse opal carbon nitride(IO F-CN/V_(2)O_(5)) was synthesized as a product of ternary collaborative modification with heterostructure construction,element doping and inverse opal *** catalyst presented the highest photocatalytic activity and rate constant for degradation of typical organic pollutants Rhodamine B(RhB)and was also used for the efficient removal of antibiotics,represented by norfloxacin(NOR),sulfadiazine(SD)and levofloxacin(LVX).Characterizations confirmed its increased specific surface area,narrowed bandgap,and enhanced visible light utilization *** mechanism study including band structure study and electron paramagnetic resonance(EPR)proved the successful construction of Z-scheme heterojunction,which improved photogenerated charge carrier migration and provide sufficient free radicals for the degradation *** combination of different modifications contributed to the synergetic improvement of removal efficiency towards different organic pollutants.

关键词： Carbon nitride Inverse opal structure Vanadium pentoxide Fluorinate Organic pollutants degradation

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Enhanced removal of bisphenol A by cyclodextrin in photocatalytic systems:Degradation intermediates and toxicity evaluation

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Chinese Chemical Letters 2020年第10期31卷 2623-2626页

作者： Yi Zhou Jie He Jian Lu yongdi liu Yanbo Zhou State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China National Engineering Laboratory for Industrial Wastewater Treatment East China University of Science and TechnologyShanghai 200237China

At present,the assessment of photooxidation system mainly focuses on the photodegradation efficie ncy of target pollutant,lacking of the toxicity assessment in the photocatalysis ***,photodecomposition of bisphenol A(BPA)was used to investigate the performance of several cyclodextrin modified ***,the comprehensive toxicity changes of BPA under different photocatalytic oxidation conditions were ***β-cyclodextrin(β-CD)modified photocatalyst,including titanium dioxide(CM-β-CD-TiO_(2)),carbon nitride(CM-β-CD-C_(3)N_(4))and cadmium sulfide(SH-β-CD-AM/CdS)exhibit high degradation rate and mineralization efficiency of *** highest total organic carbon(TOC)removal of BPA observed in the oxidation system of SH-β-CD-AM/CdS nano reactor(73.4%).The main oxidation intermediates in these systems were detected,and the comprehension toxicity of BPA and its oxidation intermediates in different system were compared by toxicity estimation software tool(T.E.S.T.)based on quantitative structure-activity relationship(QSAR)*** results show thatβ-CD can facilitate the photodecomposition of the target *** r,many oxidation intermediates with high compre hensive toxicity,eve n in the oxidation system with high B PA removal,can still be *** re,not only decomposition of target contaminant but also the comprehensive toxicity of oxidation intermediates should be regarded as index to evaluate a photocatalysis technology.

关键词： Cyclodextrin Bisphenol A Photocatalysis Toxicity Carbon nitride

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Preliminary study of groundwater denitrification using a composite membrane bioreactor

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Frontiers of Environmental Science & Engineering 2011年第4期5卷 604-609页

作者： Lihui ZHANG Guomin CAO Yulei FEI Hong DING Mei SHENG yongdi liu Research Institute of Environmental Engineering East China University of Science and TechnologyShanghai 200237China

A composite membrane bioreactor(CMBR)integrating the immobilized cell technique and the membrane separation technology was developed for groundwater *** CMBR had two well mixed compartments with one filled with the nitratecontaining influent and the other with a dilute ethanol solution;the compartments were separated by the composite membrane consisting of a microporous membrane facing the influent and an immobilized cell membrane facing the ethanol *** and ethanol molecules diffused from the respective compartments into the immobilized cell membrane where nitrate was reduced to gaseous nitrogen by the denitrifying bacteria present there with ethanol as the carbon *** microporous membrane was attached to one side of the immobilized cell membrane for retention of the disaggregated *** to the single dose of external ethanol,the twodose supplementation produced better treatment results as evidenced by the lower concentrations of NO_(3)^(-)-N and ethanol(as measured by total organic carbon)of the *** batch treatment in CMBR removed most of the nitrate in the influent and attained a stable denitrification rate of 0.1 g·m^(-2)·h^(-1)for most of the 96-h cycles during the 30-cycle *** effluent was essentially free of ethanol and nitrite nitrogen.

关键词： groundwater nitrate denitrification composite membrane bioreactor(CMBR) immobilized cell membrane

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Abatement of sulfide generation in sewage by glutaraldehyde supplementation and the impact on the activated sludge accordingly

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Frontiers of Environmental Science & Engineering 2015年第2期9卷 365-370页

作者： Lehua ZHANG Jingxing MA Yinchen JIN Haiqin ZHANG yongdi liu Lankun Cai State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology Shanghai 200237 China Department of Water Pollution Control Universite Libre de Bruxelles B-1050 Brussels Belgium

Hydrogen sulfide emission in sewer systems is associated with toxicity, corrosion, odour nuisance and high costs treatment. In this study, a novel method to inhibit sulfide generation from sewage by means of glutaraldehyde supplementation has been suggested and evaluated under anaerobic conditions. Different concentra- tions of glutaraldehyde at 10, 15, 20, 30 and 40mg.L1 have been investigated. Besides, the possible impacts of glutaraldehyde supplementation on an activated sludge system and an appraisal of the economic aspects are presented as well. As observed from the experimental results, a dosage of 20 mg. L-1 glutaraldehyde resulted in a significant decrease of the sulfide production by 70%-80% in the simulated sewage. Moreover, the impacts of additional glutaraldehyde at 20mg·L^-1 on activated sludge, in terms of chemical oxygen demand removal and oxygen uptake rates, were negligible. From an economical point of view, the cost of the commercial glutaraldehyde products required in the operation, which was calculated on the basis of activated sulfide removal avoidance, was around ε3.7-4.6 S·kg^-1. Therefore it is suggested that glutaraldehyde supplementation is a feasible technique to abate the sulfide problems in sewer systems. Yet further research is required to elucidate the optimum ＂booster＂ dosage and the dosing frequency in situ accordingly.

关键词： corrosion glutaraldehyde sulfate-reducingbacteria sulfide urban sewage

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A carbon-rich g-C_(3)N_(4) with promoted charge separation for highly efficient photocatalytic degradation of amoxicillin

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Chinese Chemical Letters 2021年第9期32卷 2787-2791页

作者： Dan Huang Xianbo Sun yongdi liu Haodong Ji Wen liu Chong-Chen Wang Weiyu Ma Zhengqing Cai National Engineering Laboratory for High-concentration Refractory Organic Wastewater Treatment Technologies East China University of Science and TechnologyShanghai 200237China The Key Laboratory of Water and Sediment Sciences Ministry of EducationCollege of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation School of Environment and Energy EngineeringBeijing University of Civil Engineering and ArchitectureBeijing 100044China

A novel carbon-rich g-C_(3)N_(4) nanosheets with large surface area was prepared by facile thermal polymerization method using urea and 1,3,*** of carbon-rich functional groups were introduced into the surface layers of g-C_(3)N_(4),which constructed the built-in electric field(BIEF)and resulted in improved charge separation;therefore,the carbon-rich g-C_(3)N_(4) displayed superior photocatalytic activity for amoxicillin degradation under solar *** contaminant degradation mechanism was proposed based on radical quenching experiments,intermediates analysis and density functional theory(DFT)***,the reusing experiments showed the high stability of the material,and the amoxicillin degradation under various water matrix parameters indicated its high applicability on pollutants treatment,all of which demonstrated its high engineering application potentials.

关键词： Carbon-rich g-C_(3)N_(4) Photocatalysis Built-in electron field Charge separation

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薹草属少花薹草组(莎草科)小坚果形态和微形态及其分类学意义

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植物研究 2023年第1期43卷 1-8页

作者：何芳鲁益飞刘永娣褚文珂金孝锋杭州师范大学生命与环境科学学院杭州311121 浙江大学生命科学学院杭州310058 浙江省森林芳香植物康养功能研究重点实验室/浙江农林大学林业与生物技术学院临安311300

利用扫描电镜对少花薹草组(Carex ***)27种及4变种(东亚14种4变种,北美13种)小坚果形态与微形态特征进行比较观察。结果表明(:1)所有材料小坚果的形状为倒卵球形和钝三棱状,组内很一致,长度为1.53~3.59 mm,同种不同居群个体差异不显著(P... 详细信息

利用扫描电镜对少花薹草组(Carex ***)27种及4变种(东亚14种4变种,北美13种)小坚果形态与微形态特征进行比较观察。结果表明(:1)所有材料小坚果的形状为倒卵球形和钝三棱状,组内很一致,长度为1.53~3.59 mm,同种不同居群个体差异不显著(P>0.05)。(2)表皮细胞一般为五至七边形,偶有四边形或八边形,丝柄薹草(***)不同个体间有变异;垂周璧式样直或微波状;硅质台平,偶有凹或略凸,具1个中心体,*** ***和*** ***中偶见2个中心体,无卫星体,这些性状种内稳定。(3)利用表皮细胞形状、硅质台凹凸情况和中心体个数对于区分近似种具有价值,如白马薹草(***)和线柄薹草(***),且可以区分一些种下等级,如线柄薹草及其变种***、***和***。(4)*** s.s.和***小坚果形态和微形态上具有较高一致性,具有重要分类学意义。

关键词：薹草属少花薹草组小坚果微形态分类学意义

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