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| 1 | Danshen: a phytochemical and pharmacological overview显示文摘Danshen, the dried root or rhizome of Salvia miltiorrhiza Bge., is a traditional and folk medicine in Asian countries, especially in China and Japan. In this review, we summarized the recent researches of Danshen in traditional uses and preparations, chemical constituents, pharmacological activities and side effects. A total of 201 compounds from Danshen have been reported, including lipophilic diterpenoids, water-soluble phenolic acids, and other constituents, which have showed various pharmacological activities, such as anti-inflammation, anti-oxidation, anti-tumor, anti-atherogenesis, and anti-diabetes. This article intends to provide novel insight information for further development of Danshen, which could be of great value to its improvement of utilization. | MEI Xiao-Dan CAO Yan-Feng CHE Yan-Yun LI Jing SHANG Zhan-Peng ZHAO Wen-Jing QIAO Yan-Jiang ZHANG Jia-Yu | 2019 | Chinese Journal of Natural Medicines2019，17，1： | 43 |
| 2 | A new principle of synthetic cascade utilization of chemical energy and physical energy显示文摘We propose a new principle of the cascade utilization of both chemical energy and physical energy in energy systems with the integration of chemical processes and thermal cycles. Particularly, a general equation of energy levels of substance, Gibbs free energy of chemical reaction and physical energy is explicitly founded. On the basis of this equation, a chemical-looping combustion and an indirect combustion are investigated. Furthermore, a mechanism of energy release, with the combination of decreasing the energy level of Gibbs free energy and upgrading the energy level of low or middle- temperature thermal energy, is clarified. The promising results obtained here establish a theoretical basis for the further investigation of multi-function systems in which energy and the environment are compatible, and create a new approach to improve the performance of traditional thermal cycles. | JIN Hongguang1, HONG Hui1,2, WANG Baoqun1,2, HAN Wei1,2 & LIN Rumou1,2 1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China | 2005 | Science China(Technological Sciences)2005，48，2： | 35 |
| 3 | Trace element geochemistry during chemical weathering——As exemplified by the weathered crust of granite, Longnan, Jiangxi显示文摘The granite weathering in Longnan, Jiangxi, is represented by mineralogical changes of feldspars · montmorillonite, illite · kaolinite, halloysite · bauxite, with Na, Ca, Si, P, V, U and Sr being in a mobile state while Ti, Al, Fe, Sc, Th, Zr and Hf remaining relatively conservative. With the exception of Zr/Hf, Nb/Ta, Th/Sc, Zr/Nd and Sm/Nb, changes are notable in ratios between most of the trace elements. Re-distribution of REE and Y has | Yingjun Ma Congqiang Liu | 1999 | Chinese Science Bulletin1999，44，24： | 35 |
| 4 | Genetic analysis and gene mapping of a new rolled-leaf mutant in rice (Oryza sativa L.)显示文摘To understand the development of rice leaf blades,we identified a new rolled-leaf mutant,w32,from indica cultivar IR64 through EMS mutagenesis. The mutant showed a stable rolled-leaf phenotype throughout the life cycle. Two F2 populations were developed by crossing w32 to cultivar IR24 and PA64. Genetic analysis showed that the rolled-leaf phenotype was controlled by a single recessive gene. To determine the location of the gene,bulked segregant analysis was carried out using mutant and wild-type DNA pools and 1846 mutant-type F2 individuals derived from the cross w32/PA64 were genotyped to locate the gene on the short arm of chromosome 7. The rolled-leaf gene,tentatively named rl11(t),is likely a new gene as no other rolled-leaf genes have been identified near the region. By developing new SSR and InDel markers,the gene was delimited to a 52 kb region near the end of the short chromosome arm. Further fine mapping and cloning of the gene are currently underway. | SHI YongFeng1,2,CHEN Jie1,LIU WenQiang1,HUANG QiNa1,2,SHEN Bo2,LEUNG Hei3 & WU JianLi1 1 Chinese National Center for Rice Improvement/National key Laboratory for Rice Biology,China National Rice Research Institute,Hangzhou 310006,China 2 College of Life and Environmental Sciences,Hangzhou Normal University,Hangzhou 310016,China 3 International Rice Research Institute,Metro Manila DAPO Box 7777,Philippines | 2009 | Science China(Life Sciences)2009，52，9： | 29 |
| 5 | 固溶温度对激光立体成形GH4169高温合金组织和性能的影响(英文)显示文摘研究激光立体成形GH4169高温合金固溶处理后的组织,分析了固溶过程中合金元素的均匀化,并对材料显微硬度的变化做了讨论。结果表明,随固溶温度的升高,材料的晶界越来越清晰,经1000-1170°C固溶处理1h后材料发生再结晶,当固溶处理温度高于1100°C,有大量孪晶出现,晶粒相比沉积态显著细化,晶粒尺寸约200μm。合金元素的均匀化在1100°C保温1h后基本完成。显微硬度测试结果显示,材料的显微硬度值随固溶温度的升高而降低,在固溶温度低于1100°C时减小趋势较快,高于1100°C时减小趋势减缓。显微硬度的变化与材料中γ′和γ'相及δ相的形态和数量有关。1100°C是激光立体成形GH4169合金比较合适的固溶处理温度下限。 | 刘奋成 林鑫 赵卫卫 赵晓明 陈静 黄卫东 | 2010 | 稀有金属材料与工程2010，39，9： | 29 |
| 6 | Chemical Fixation of CO_2 with Highly Efficient ZnCl_2/[BMIm]Br Catalyst System显示文摘 | Li Fuwei Xia Chungu | 2004 | 合成化学2004，12，z1： | 27 |
| 7 | Application of a new TLC chemical method for detection of cyclopeptides in plants显示文摘Cyclopeptides have been investigated phytochemically less often because until now there has not been a special chemical method to detect them. Since we found cyclopeptides in Pseudostellaria heterophylla (Caryophyllaceae) in 1991, we have gradually established a special chemical detection method for detecting cyclopeptides in plants, which induces a new thin layer chromatography (TLC) protosite reaction with ninhydrin reagent. With this method, our group isolated and determined 73 cyclopeptides from 17 plants which belong to 5 families and 14 genuses, they are from dicyclopeptides to undecacyclopeptides, including 68 new ones, and were determined based on spectral, chemical and enzymic methods, especially 2D NMR and FAB-MS. Meantime, with this method cyclopeptides can be distinguished from peptidic amides based on their behaviour in TLC. | Jun Zhou Ninghua Tan | 2000 | Chinese Science Bulletin2000，45，20： | 25 |
| 8 | Characteristics of one-year observation of VOCs,NOx, and O_3 at an urban site in Wuhan, China显示文摘A continuous online observation of ozone and its precursors(NOx, VOCs) was carried out in central urban Wuhan from September 2016 to August 2017. The concentration levels of ozone,NOx, VOCs and their variations in urban Wuhan were analyzed, as well as effects of VOCs on ozone photochemical generation and the main controlling factors for ozone production. During the observation period, the average concentrations of ozone and NOx in Wuhan was 22.63 and30.14 ppbv, respectively, and the average concentration of VOCs was 32.61 ppbv(42.3% alkanes,13.0% alkenes, 10.0% aromatics, 7.3% acetylene, 9.9% OVOCs, and 10.5% halohydrocarbons).Ozone concentration was higher in spring and summer as compared with autumn and winter,wheras VOCs and NOx concentratios were lower in spring and summer but higher in autumn and winter. Aromatics and alkenes, two of VOCs species, showed the highest contributions to ozone formation potential in Wuhan(35.7% alkenes, 35.4 aromatics, 17.5% alkanes, 8.6% OVOCs,1.6% halogenated hydrocarbons, and 1.4% acetylene). Among all VOCs species, those with the highest contribution were ethylene, m-xylene, toluene, propylene and o-xylene. The contribution of these five compounds to the total ozone formation potential concentration was 43.90%.Ozone-controlling factors in Wuhan changed within one day; during the early morning hours(6:00–9:00), VOCs/NOx was low, and ozone generation followed a VOCs-limited regime.However, during the peak time of ozone concentration(12:00–16:00), the ratio of VOCs/NOx was relatively high, suggesting that ozone generation followed a NOx-limited regime. | Yichang Yang Xingang Liu Jun Zheng Qinwen Tan Miao Feng Yu Qu Junling An Nianliang Cheng | 2019 | Journal of Environmental Sciences2019，31，5： | 26 |
| 9 | 金川Ⅰ号岩体橄榄石Ni-MgO相互关系及其地质意义显示文摘金川超镁铁质岩体赋存着仅次于加拿大Sudbury和俄罗斯Noril'sk-Talnakh的世界第三大在采铜镍硫化物矿床,岩体以一系列的NE向断层为界分成四个小岩体,由西至东依次为:Ⅲ、Ⅰ、Ⅱ、Ⅳ岩体。Ⅰ号岩体主要由二辉橄榄岩、含辉橄榄岩和橄榄二辉岩构成,橄榄石在各岩相中均为保存较好的主要造岩矿物。本文研究得到金川Ⅰ号岩体上部二辉橄榄岩和含辉橄榄岩中橄榄石的镁橄榄石Fo值介于83.9~85.7,而其Ni含量为1396×10^(-6)~2043×10^(-6),大多低于从S不饱和玄武岩浆中结晶出采的橄榄石的Ni含量。模拟计算结果表明橄榄石较低的Ni含量是因为橄榄石结晶的同时,发生了强烈的硫化物熔离;橄榄石的Fo-Ni关系还因与晶间硅酸盐熔浆的物质交换而发生改变。模拟计算还证明大约有30%的晶间硅酸盐岩浆与橄榄石发生Fe-Mg物质交换反应,导致早结晶橄榄石的Fo值减少了1~1.5。同时,橄榄石较小的Fo值变化表明,在橄榄石结晶和硫化物熔离过程中,不断有新的岩浆贯入和补充。 | 陈列锰 宋谢炎 Danyushevsky LV 肖加飞 李士彬 官建祥 | 2009 | 岩石学报2009，25，12： | 22 |
| 10 | Geochemical studies on the intensity of chemical weathering in Luochuan loess-paleosol sequence, China显示文摘Major and trace element analyses of the Luochuan loess paleosol sequence in China were performed in order to understand the chemical weathering processes occurring on the Loess Plateau during the last 600 ka. Results reveal that most elements in the loess remain immobile during chemical weathering. The typical stable elements are Al, K, Ti, Rb and REE, while the main mobile elements are Ca, Sr, P, Mg and Na. Loess and paleosol experience the incipient stage of chemical weathering characterized by acid leaching and carbonate dissolution. Alteration of silicates in the sequence seems to be limited. Features of less chemical weathering of the loess and paleosol could be indicators for the dry cold climate dominated on the Loess Plateau during the Quaternary. | 陈骏 季峻峰 仇纲 鹿化煜 | 1998 | Science China Earth Sciences1998，41，3： | 22 |
| 11 | Trends in particulate matter and its chemical compositions in China from 2013–2017显示文摘Accurate determination of the atmospheric particulate matter mass concentration and chemical composition is helpful in exploring the causes and sources of atmospheric enthalpy pollution and in evaluating the rationality of environmental air quality control strategies.Based on the sampling and chemical composition data of PM2.5 in different key regions of China in the CARE-China observation network,this research analyzes the environmental air quality data released by the China National Environmental Monitoring Centre during the studied period to determine the changes in the particulate matter mass concentration in key regions and the evolution of the corresponding chemical compositions during the implementation of the Action Plan for Prevention and Control of Air Pollution from 2013-2017.The results show the following.(1)The particulate matter mass concentration in China showed a significant downward trend;however,the PM2.5 annual mass concentration in 64%of cities exceeds the New Chinese Ambient Air Quality Standard(CAAQS)GradeⅡ(GB3095-2012).The region to the east of the Taihang Mountains,the Fenhe and Weihe River Plain and the Urumqi-Changji regions in Xinjiang,all have PM2.5 concentration loading that is still high,and heavy haze pollution occurred frequently in the autumn and winter.(2)During the heavy pollution in the autumn and winter,the concentrations of sulfate and organic components decreased significantly.The mean SO42-concentration in PM2.5 decreased by 76%,12%,81%and 38%in Beijing-Tianjin-Hebei(BTH),the Pearl River Delta(PRD),the Sichuan-Chongqing region(SC)and the Fenhe and Weihe River Plain,respectively.The mean organic matter(OM)concentration decreased by 70%,44%,48%and 31%,respectively,and the mean concentration of NH4+decreased by 68%,1.6%,38%and 25%,respectively.The mean elemental carbon(EC)concentration decreased by 84%and 20%in BTH and SC,respectively,and it increased by 61%and 11%in the PRD and Fenhe and Weihe River Plain,respectively.The mean concentration of mineral and unresolved chemical components(MI)dropped by 70%,24%and 13%in BTH,the PRD and the Fenhe and Weihe River Plain,respectively.The change in the PM2.5 chemical composition is consistent with the decrease of the PM2.5mass concentration.(3)In 2015,the mean OM concentration contributions to fine particles and coarse particles were 13-46%and 46-57%,respectively,and the mean MI concentration contributions to fine particles and coarse and particles were 31-60%and 39-73%,respectively;these values are lower than the 2013 values from the key regions,which is the most important factor behind the decrease of the particulate matter mass concentration.From 2013 to 2015,among the chemical components of different particle size fractions,the peak value of the coarse particle size fraction decreased significantly,and the fine particle size fractions of SO42-,NO3-,and NH4+decreased with the decrease of the particulate matter mass concentration in different particle size fractions.The fine-particle size peaks of SO42-,NO3-and NH4+shifted from 0.65-1.1μm to the finer size range of0.43-0.65μm during the same time frame. | Yuesi WANG Wenjie LI Wenkang GAO Zirui LIU Shili TIAN Rongrong SHEN Dongsheng JI Shuai WANG Lili WANG Guiqian TANG Tao SONG Mengtian CHENG Gehui WANG Zhengyu GONG Jiming HAO Yuanhang ZHANG | 2019 | Science China Earth Sciences2019，62，12： | 23 |
| 12 | Removal of heavy metals from sewage sludge by low costing chemical method and recycling in agriculture显示文摘RemovalofheavymetalsfromsewagesludgebylowcostingchemicalmethodandrecyclinginagricultureWuQitang,NyirandegePascasie,MoCehuiF... | Wu Qi tang, Nyirandege Pascasie, Mo Ce hui Faculty of Resources and Environments, South China Agricultural University, Guangzhou 510642, China Lin Yi Datansha Wastewater Treatment Plant, Guangzhou 510160, China | 1998 | Journal of Environmental Sciences1998，10，1： | 21 |
| 13 | 雷琼地区晚新生代玄武岩地球化学:EM2成分来源及大陆岩石圈地幔的贡献显示文摘对雷琼地区21个晚新生代玄武岩样品的主量、微量元素和Sr、Nd、Pb同位素分别用湿化学法、ICP-MS和MC-ICPMS进行了测定。这些玄武岩主要为石英拉斑玄武岩,其次为橄榄拉斑玄武岩和碱性玄武岩。大多数样品的微量元素和同位素成分与洋岛玄武岩(OIBs)相似,而且随着SiO_2不饱和度增加,不相容元素含量也增加。除R4-1可能受到地壳混染外,其他样品相对均一的Nd同位素(ε_(Nd)=2.5~6.0)以及变化明显但范围有限的Sr同位素(0.703106~0.704481),可能继承了地幔源区的特征。^(87)Sr/^(86)Sr与^(206)Pb/^(204)Pb的正相关和^(143)Nd/^(144)Nd与^(206)Pb/^(204)Pb的负相关特征暗示DM(软流圈地幔)与EM2(岩石圈地幔)的混合。地幔捕虏体的同位素特征暗示EM2成分不可能存在于尖晶石橄榄岩地幔,而La/Yb和Sm/Yb系统表明岩浆由石榴石橄榄岩部分熔融产生,这意味着EM2成分可能存在于石榴石橄榄岩地幔。雷琼地区玄武岩的地球化学变化可以用软流圈地幔为主的熔体加入不同比例石榴石橄榄岩地幔不同程度熔融产生的熔体来解释:碱性玄武岩和橄榄拉斑玄武岩是软流圈熔体与石榴石橄榄岩地幔较低程度(7%~9%)熔融体混合,而石英拉斑玄武岩是软流圈熔体与石榴石橄榄岩地幔较高程度(10%~20%)熔融体的混合。 | 韩江伟 熊小林 朱照宇 | 2009 | 岩石学报2009，25，12： | 20 |
| 14 | Optimal performance of a generalized irreversible four-reservoir isothermal chemical potential transformer显示文摘A new cyclic model of a four-reservoir isothermal chemical potential transformer with irreversible mass transfer, mass leakage and internal dissipation is put forward in this paper. The optimal relation be-tween the coefficient of performance (COP) and the rate of energy pumping of the generalized irre-versible four-reservoir isothermal chemical potential transformer has been derived by using finite-time thermodynamics or thermodynamic optimization. The maximum COP and the corresponding rate of energy pumping, as well as the maximum rate of energy pumping and the corresponding COP, have been obtained. Moreover, the influences of the irreversibility on the optimal performance of the iso-thermal chemical potential transformer have been revealed. It was found that the mass leakage affects the optimal performance both qualitatively and quantitatively, while the internal dissipation affects the optimal performance quantitatively. The results obtained herein can provide some new theoretical guidelines for the optimal design and development of a class of isothermal chemical potential trans-formers, such as mass exchangers, electrochemical, photochemical and solid state devices, fuel pumps, etc. | XIA Dan CHEN LinGen SUN FengRui | 2008 | Science China Chemistry2008，51，10： | 20 |
| 15 | Distribution of Rb and Sr in the Luochuan loess-paleosol sequence of China during the last 800 ka——Implications for paleomonsoon variations显示文摘The concentrations of Rb and Sr, and magnetic susceptibility in loess and paleosol samples from the Luochuan profile have been measured. The loess units deposited in different geological periods display a very similar pattern of Rb and Sr distribution while paleosol units exhibit a dramatic increase in the Rb/Sr ratio, ranging from 20% to 120% in increase amplitude. Owing to different geochemical behavior of the two elements, Rb appears to be immobile while Sr appears to be mobile in the processes of weathering and pedogenesis. So variations of the Rb/Sr ratio in the loess-paleosol sequences could reflect intensities of weathering and pedogenesis, thus recording the relative wind strength of the East Asian summer monsoon circulation. This could be supported by the high degree of correlation between the Rb/Sr ratio and the magnetic susceptibility. A continuous record of the Rb/Sr ratio in the Luochuan profile over the last 800 ka bears a striking resemblance to the δ18O curve of the deep sea | 陈骏 安芷生 汪永进 季峻峰 陈旸 鹿化煜 | 1999 | Science China Earth Sciences1999，42，3： | 19 |
| 16 | ^(13)C NMR spectra of tectonic coals and the effects of stress on structural components显示文摘High-resolution 13C Nuclear Magnetic Resonance (NMR) spectra of different kinds of tectonic coals were obtained using the NMR (CP/MAS+TOSS) method. On the basis of this, after simulation synthesis and division of spectra, the relative contents of carbon functional groups were calculated. Combined with results of Ro, max, XRD testing and element analysis, stress effects on the composition of macromolecular structures in tectonic coals were studied further. The results showed that Ro, max was not only the important index for describing coal rank, but was also effective for estimating the stress effect of tectonic coals. Under tectonic stress ac- tion, Ro, max was the most direct indicator of the coal structure and chemical components. Changes in the stacking Lc of the coal basic structure unit (BSU) and La/Lc parameters could distinguish the temperature and stress effects on metamorphic-deformed environments, and re- flected the degree of structural deformation. Therefore, on the whole, Lc and La/Lc can be used to index of the degree of structural deformation of tectonic coals. In different metamorphic and de- formed environments, different kinds of tectonic coals are formed under structural stress. The changes in characteristics of the macromolecular structure and chemical composition are such that as the increase in structural deformation becomes stronger, from the brittle deformation coal to ductile deformation coal, the ratio of width at the half height of the aromatic carbon and ali- phatic carbon peaks (Hfa/Hfal ) was increased. As carbon aromaticity was raised further, carbon aliphaticity reduced obviously and different compositions of macromolecular structure appeared as a jump and wave pattern except for in wrinkle structure coal, which might result chiefly from stress effects on the macromolecular structure of different kinds of tectonic coals. The macro- moecular changes of wrinkle structure coal are reflected mainly on physical structure. In the metamorphic and deformed environments of the middle and high rank coals, different kinds of tectonic coals, when compared with the metamorphic and deformed environments of low rank coal, have a greater change in Hfa/Hfal, carbon aromaticity, carbon aliphaticity and a different composition of macromolecular structure. So these parameters can be used to estimate in- creases of coal rank, and to a certain degree, the stress effects on structural components of tectonic coals. | JU Yiwen1,2, JIANG Bo1, HOU Quanlin2, WANG Guiliang1 & NI Shanqin2 1. College of Mineral Resource and Geosciences, China University of Mining and Technology, Xuzhou 221008, China 2. Laboratory of Computational Geodynamics, College of Geosciences, Graduate School of Chinese Academy of Sciences, Beijing 100049, China | 2005 | Science China Earth Sciences2005，48，9： | 18 |
| 17 | 藏药“佐塔”的成分分析显示文摘目的利用现代物理化学方法分析'佐塔'中的无机成分和有机成分,并观察其微观结构。方法等离子发射光谱(OES)-质谱仪(MS)联用对'佐塔'进行全元素定性、定量分析;利用X-射线衍射仪(XRD)和扫描电子显微镜-能谱分析仪(SEM-EDAX)分析'佐塔'中所含成分的晶形并观察其微观结构;使用高效液相色谱法(HPLC)初步对'佐塔'不同极性提取物进行有机成分的探索。结果 '佐塔'中含三十多种元素,其中主要成分为S和Hg;含有六方HgS、单质C、Fe3O4等晶系;'佐塔'颗粒大小为1~5μm,基本以积聚态的形式存在,且形状和分布都不规则。结论 '佐塔'中含有多种无机成分和有机成分,但其药效成分还有待于进一步研究。 | 蓝高武 陈忠杰 李文虎 吴可仲 崔箭 朴香兰 | 2010 | 时珍国医国药2010，21，12： | 18 |
| 18 | 化学气相渗透工艺制备陶瓷基复合材料显示文摘综述了采用化学气相渗透(chemical vaporinfiltration,CVI)工艺制备陶瓷基复合材料(ceramic matrix composites,CMCs)的模拟与可视化、柔性与鲁棒性以及强韧性控制与设计等研究的进展和趋势.陶瓷基复合材料气相制造过程模拟涉及气体传输、反应热力学与动力学、预制体的孔隙结构建模等理论,是一个典型的多尺度和多物理场问题.运用量子化学、化学热力学、微观动力学、有限元、水平集和人工智能等方法,实现了复合材料致密化过程的模拟和成分分析,更加精准地反映了气体在多孔预制体中的各向异性传输和沉积过程,为工艺优化提供更准确的控制参数.CVI工艺制备陶瓷基复合材料具有柔性与鲁棒性等工艺特性,包括应用广泛性,可控制、可调整与可设计性,可连接与可组装性,可纠错、可修复与可兼容性等诸多特性,适用于陶瓷基复合材料微结构的调控,是陶瓷基复合材料领域最先进的基础制造方法.陶瓷基复合材料的强韧性一直是其发展中的核心问题,增强体纤维、基体及二者界面之间的模量匹配,以及热残余应力和纤维基体体积分数等参数的设计与控制是这个核心问题的关键.通过合理控制与设计这些参数,可以实现陶瓷基复合材料的强韧化控制与设计,从而适应不同使用环境条件的需求. | 成来飞 张立同 梅辉 刘永胜 曾庆丰 | 2014 | 上海大学学报(自然科学版)2014，20，1： | 18 |
| 19 | 夏秋季珠江口水域COD、DO、营养盐分布特征及其富营养化评价显示文摘在2012年夏季(8月)和秋季(11月)对珠江口海域进行化学需氧量(COD)、溶解氧(DO)和氮磷营养盐调查分析,并研究了其分布特征,采用富营养化指数法和潜在性富营养化法对珠江口水体营养化状况进行了分析和评价.结果显示,珠江口海域COD质量浓度较低,夏季平均值为1.85 mg/L,秋季为1.10 mg/L;DO质量浓度较高,夏季平均值为6.95 mg/L,秋季为7.63 mg/L;无机氮污染严重,平均质量浓度夏季为0.85 mg/L,秋季为0.79mg/L,总体上从北向南递减;无机磷秋季平均质量浓度(0.015 mg/L)显著低于夏季平均质量浓度(0.010 mg/L).富营养化严重海域主要集中在东北部及伶仃洋一带,基本呈自北向南逐级递减趋势.秋季富营养化程度显著高于夏季,珠江口海域基本上属于磷限制潜在性富营养水平. | 蔡阳扬 岑竞仪 欧林坚 吕颂辉 | 2014 | 暨南大学学报(自然科学与医学版)2014，35，3： | 18 |
| 20 | Effect of manganese oxide-modified biochar addition on methane production and heavy metal speciation during the anaerobic digestion of sewage sludge显示文摘Low organic matter content and high heavy metal levels severely inhibit the anaerobic digestion(AD) of sewage sludge. In this study, the effect of added manganese oxidemodified biochar composite(MBC) on methane production and heavy metal fractionation during sewage sludge AD was examined. The MBC could increase the buffering capacity,enhance the methane production and degradation of intermediate acids, buffer the pH of the culture, and stabilize the sewage sludge AD process. The application of MBC positively impacted methane production and the cumulative methane yield increased up to 121.97%,as compared with the control. The MBC addition can improve metal stabilization in the digestate. An optimum MBC dose of 2.36 g was recommended, which would produce up to 121.1 L/kg volatile solids of methane. After the AD process, even though most of the metals accumulated in the residual solids, they could be transformation from the bio-available fractions to a more stable fraction. The total organic-and sulfide-bound and residual fraction content at a 3 g dose of MBC that is 0.12 g/g dry matter were 51.06% and 35.11% higher than the control, respectively. The results indicated that the application of MBC could improve the performance of AD and promote stabilization of heavy metals in sewage sludge post the AD process. | Jianhua Li Min Zhang Zhiyin Ye Changming Yang | 2019 | Journal of Environmental Sciences2019，31，2： | 17 |
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