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以鸟粪石的形式在污水处理厂回收磷的研究 被引量:57
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作者 王绍贵 张兵 汪慧贞 《环境工程》 CAS CSCD 北大核心 2005年第3期78-80,共3页
磷既是一种不可再生的资源,也是造成水体富营养化的重要因素。近年来,随着磷资源的匮乏,从污水处理厂回收磷在世界各国逐渐兴起,而我国在这方面的研究还基本处于起始阶段。为此,在某污水处理厂进行了以鸟粪石形式回收磷的小试实验,考察... 磷既是一种不可再生的资源,也是造成水体富营养化的重要因素。近年来,随着磷资源的匮乏,从污水处理厂回收磷在世界各国逐渐兴起,而我国在这方面的研究还基本处于起始阶段。为此,在某污水处理厂进行了以鸟粪石形式回收磷的小试实验,考察了磷回收的一些控制参数,并将以此作为基础,继续深入研究。 展开更多
关键词 污水处理厂 回收工艺 鸟粪石 控制参数 技术原理
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论民国时期“何瑞年出卖西沙群岛权益案”经纬——以日本亚洲资料中心(JACAR)史料为据 被引量:6
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作者 赵德旺 《南海学刊》 2018年第2期70-74,共5页
西沙群岛盛产鸟粪,民国时期日本商人与中国奸商勾结在西沙群岛疯狂开采鸟粪,何瑞年就是其中最具代表性的人物之一。同时,国内各种势力的博弈及监管不力造成了国家资源的严重流失,但这正成为中国政府在西沙群岛经营和管辖的铁证。通过日... 西沙群岛盛产鸟粪,民国时期日本商人与中国奸商勾结在西沙群岛疯狂开采鸟粪,何瑞年就是其中最具代表性的人物之一。同时,国内各种势力的博弈及监管不力造成了国家资源的严重流失,但这正成为中国政府在西沙群岛经营和管辖的铁证。通过日本史料阐明何瑞年与日本商人勾结的事实,还原当时的历史,也为西沙群岛是中国领土提供新的史料依据。 展开更多
关键词 鸟粪 西沙群岛 采矿权 何瑞年
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Stimulation of gaseous phosphine production from Antarctic seabird guanos and ornithogenic soils 被引量:3
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作者 ZHU Renbin LIU Yashu +2 位作者 SUN Jianjun SUN Liguang GENG Jinju 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第2期150-154,共5页
Matrix-bound phosphine (MBP) is a general term used to indicate non-gaseous reduced phosphorus compounds that are transformed into phosphine gas upon reaction with bases or acids. Antarctic seabird guanos and ornith... Matrix-bound phosphine (MBP) is a general term used to indicate non-gaseous reduced phosphorus compounds that are transformed into phosphine gas upon reaction with bases or acids. Antarctic seabird guanos and ornithogenic soils were used as materials to compare the different digestion methods for transforming matrix-bound phosphine into phosphine gas. The results demonstrated that more phosphine gas in most of Antarctic environmental materials was formed of matrix-bound phosphine by caustic digestion than by acidic digestion. The comparative study on different digestion methods also revealed that the fraction of MBP converted to gaseous phosphine during the digestion depended on the temperature. The optimal digestion temperature was close to 70℃and the optimal digestion time was about 20 min. Acidic conditions were more favorable for the release of matrix-bound phosphine compared to the neutral conditions. A proper water dilution can increase the production and emission of phosphine from the Antarctic penguin guanos. 展开更多
关键词 PHOSPHINE matrix-bound phosphine ornithogenic soil ANTARCTICA penguin guano
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Change of Organic δ^(13)C in Ornithogenic Sediments of the Xisha Archipelago,South China Sea and its Implication for Ecological Development 被引量:2
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作者 WU Libin LIU Xiaodong XU Liqiang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第3期1109-1119,共11页
Abstract: Organic carbon isotopes in sediments have been frequently used to identify the source of organic matter. Here we present a study of organic δ13C on two sediment profiles influenced by guano from Guangjin a... Abstract: Organic carbon isotopes in sediments have been frequently used to identify the source of organic matter. Here we present a study of organic δ13C on two sediment profiles influenced by guano from Guangjin and Jinqing islands in the Xisha Archipelago, South China Sea. Organic matter from ornithogenic coral sand sediments has two main sources, guano pellets and plant residues, and their organic δ13C (δ13CoM) are significantly different. Organic carbon δ13Cguano is much higher than δ13Cplant, and δ13CoM of bulk samples is intermediate. Based on a two-end-member mixing model, the proportions of guano- and plant-derived organic matter in the bulk samples were reconstructed quantitatively. The results showed that seabirds began to inhabit the islands around approximately 1200-1400 AD, and that guano pellets have been an important source of soil organic matter since then. With the accumulation of guano-derived nutrients, plants began to develop prosperously on the islands in the last 200 years, which is reflected by the significant increase of plant-derived organic matter in the upper sediment layer. However, guano-derived organic matter decreased greatly in recent decades, indicating a rapid decrease in seabird population. Our results show that organic 6~3C can be effectively used to quantitatively determine different source contributions of OM to bulk ornithogenic coral sand sediments. 展开更多
关键词 organic matter δ13C guano plant end-member analysis
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First discovery of a cave-dwelling Tineid moth(Lepidoptera, Tineidae) from East Asia
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作者 Bong-Kyu Byun Sat-Byul Shin +2 位作者 Yang-Seop Bae Do Sung Kim Yong Geun Choi 《Journal of Forestry Research》 SCIE CAS CSCD 2014年第3期647-651,共5页
In this study, we report Monopis crocicapitella (Clemens, 1859) (Tineidae), which was collected from bat guano in a cave in the southern region of Korea, for the first time from East Asia. We briefly redescribe an... In this study, we report Monopis crocicapitella (Clemens, 1859) (Tineidae), which was collected from bat guano in a cave in the southern region of Korea, for the first time from East Asia. We briefly redescribe and illustrate the external morphology and genital structures of both sexes. Also, we discuss the local habitat characteristics and some of the ecological information that was observed during our field investi-gation. 展开更多
关键词 Monopis TINEIDAE LEPIDOPTERA Bat guano new record Korea East Asia.
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Is Bat Guano a Reservoir of <i>Geomyces destructans</i>?
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作者 Janez Mulec Elizabeth Covington Julia Walochnik 《Open Journal of Veterinary Medicine》 2013年第2期161-167,共7页
Bat guano from six different karst caves in Slovenia was screened by PCR for the presence of Geomyces destructans [1]. Two identical DNA sequences from guano heaps in two of the caves with recent bat droppings were re... Bat guano from six different karst caves in Slovenia was screened by PCR for the presence of Geomyces destructans [1]. Two identical DNA sequences from guano heaps in two of the caves with recent bat droppings were retrieved. These sequences were closely related to several unidentified Geomyces clones and to pathogenic G. destructans, but definitive identification remained elusive. Despite the presence of Geomyces species, thus far there has been no report of Whitenose syndrome (WNS) symptoms in bats in Slovenia. Overall physical and chemical conditions in guano, particularly in large guano heaps, offer a suitable environment which might serve as a reservoir for pathogenic Geomyces strains and could represent a permanent reservoir for in situ infection of bats. Screening of guano and analysis of more data related to guano ecology could lend clues to control WNS outbreaks and mortality linked to G. destructans. 展开更多
关键词 Geomyces destructans BAT guano CAVE Slovenia
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Assessment of trace metals in droppings of Adélie penguins(Pygoscelis adeliae) from different locations of the Antarctic Peninsula area
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作者 José E.Celis Winfred Espejo +3 位作者 Ricardo Barra Daniel Gonzalez-Acu?a Francisca Gonzalez Solange Jara 《Advances in Polar Science》 2015年第1期1-7,共7页
In recent decades, polar regions of the planet have witnessed an increase in human presence. Antarctica is considered one of the most pristine regions of the world, but it could be affected by pollution owing to anthr... In recent decades, polar regions of the planet have witnessed an increase in human presence. Antarctica is considered one of the most pristine regions of the world, but it could be affected by pollution owing to anthropogenic activities, particularly in the Antarctic Peninsula. Human presence can increase the levels of some trace metals in Antarctic environments, an issue that needs to be evaluated. To acquire data of trace metal contamination in the Antarctic Peninsula region, concentrations (dry weight) of Cd, Pb, As, Cu, Hg and Zn in fresh excrement of Ad61ie penguins were determined by atomic absorption spectrophotometry. During the 2012/2013 austral summer, samples were collected from four important nesting sites on the Antarctic Peninsula: Arctowski Base, Kopaitic Island (both sites in the northern Antarctic Peninsula), Yalour Island and Avian Island (both sites in the southern Antarctic Peninsula). Data showed that Ad61ie penguin excreta had significantly higher levels (mg.kg~) of As, Cd, Hg, Pb and Cu at Arctowski Base and Kopaitic Island, both sites that have major anthropogenic activities that probably contributed to increased metal levels. The levels of trace metals in Ad61ie penguins were similar to those reported in excreta of Antarctic species in previous studies, and lower than those in excreta of other Antarctic animals. Data suggest that metals ingested by these penguin species that feed in the sea, end up in terrestrial ecosystems. 展开更多
关键词 heavy metals seabirds PENGUINS EXCRETA guano marine pollution ANTARCTICA
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南极半岛海洋气候区的土壤 Ⅷ.鸟成土 被引量:1
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作者 陈杰 龚子同 《土壤》 CAS CSCD 北大核心 2004年第6期596-601,共6页
以强烈生物活动参与和外源有机质输入为发生学基础、以鸟粪矿化与下部岩石层磷化作用为主要发生学过程的鸟成土在南极海洋气候区广泛分布,形成独特的海岸带土壤景观。本文对南极海洋气候区内鸟成土的发生学特点、剖面形态特征、新成矿... 以强烈生物活动参与和外源有机质输入为发生学基础、以鸟粪矿化与下部岩石层磷化作用为主要发生学过程的鸟成土在南极海洋气候区广泛分布,形成独特的海岸带土壤景观。本文对南极海洋气候区内鸟成土的发生学特点、剖面形态特征、新成矿物主要类型及其发生机制进行了论述;对鸟成土随栖息地遗弃向残积鸟成土演变的过程进行了阐述。在上述基础上,论述了本区内鸟成土在发生、发育与演化过程中相对于南极其他地区鸟成土所表现的特殊性。 展开更多
关键词 南极 鸟成土 企鹅栖息地 鸟粪 磷化作用
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越冬水鸟对升金湖周边间歇性湿地氮磷的影响 被引量:1
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作者 葛方 黄涛 +3 位作者 张明真 王小芳 许子夫 于超 《生态学杂志》 CAS CSCD 北大核心 2018年第12期3670-3675,共6页
近年来,由于升金湖湖区食物资源的匮乏,一些在此越冬的水鸟会到周边间歇性浅水农田、草滩去摄食和栖息。为了解水鸟活动对这类湿地环境N、P营养盐的影响,本文以安徽升金湖小鹭咀以西3块有小天鹅和豆雁活动的浅水农田、草滩为对象,于2016... 近年来,由于升金湖湖区食物资源的匮乏,一些在此越冬的水鸟会到周边间歇性浅水农田、草滩去摄食和栖息。为了解水鸟活动对这类湿地环境N、P营养盐的影响,本文以安徽升金湖小鹭咀以西3块有小天鹅和豆雁活动的浅水农田、草滩为对象,于2016—2017年水鸟越冬季早、中、晚期分别采集表层水样并分析其中的N、P营养盐浓度变化,结合鸟粪中N、P含量及鸟类数量观测结果,研究了小天鹅和豆雁活动对间歇性湿地营养盐的影响。结果表明:整个研究时间段内草滩水体TN和TP浓度最高,且均显著高于对照(沟渠,其水源与农田和草滩一致),表明受豆雁活动影响强烈;早期农田1水体TN和TP浓度均显著高于对照,表明受小天鹅活动影响强烈,其余月份与对照则差异不明显;农田2水体TN和TP浓度与对照无显著差异,表明受小天鹅活动影响不明显;N、P其他形态含量与对照之间呈现不同的规律,反映了它们受到水鸟活动强度变化和鸟粪分解等多重影响。本研究表明,越冬水鸟的栖息、摄食活动对升金湖小鹭咀周边浅水湿地中的N、P营养盐产生了不同程度的影响。 展开更多
关键词 国家级自然保护区 鸟粪 氮素 磷素 小天鹅 豆雁
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Bats and their vital ecosystem services:a global review
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作者 Leidy Azucena RAMÍREZ-FRÁNCEL Leidy Viviana GARCÍA-HERRERA +5 位作者 Sergio LOSADA-PRADO Gladys REINOSO-FLÓREZ Alfonso SÁNCHEZ-HERNÁNDEZ Sergio ESTRADA-VILLEGAS Burton KLIM Giovany GUEVARA 《Integrative Zoology》 SCIE CSCD 2022年第1期2-23,共22页
Bats play crucial ecosystem services as seed dispersers,pollinators,controllers of insects,and nutrient recyclers.However,there has not been a thorough global review evaluating these roles in bats across all biogeogra... Bats play crucial ecosystem services as seed dispersers,pollinators,controllers of insects,and nutrient recyclers.However,there has not been a thorough global review evaluating these roles in bats across all biogeographical regions of the world.We reviewed the literature published during the last two decades and identified 283 relevant studies:78 dealt with the control of potential insect pests by bats,80 related to the suppression of other arthropods,60 on the dispersal of native or endemic seeds,11 dealt with the dispersal of seeds of introduced plants,29 on the pollination of native or endemic plants,1 study on pollination of introduced plants,and 24 on the use of guano as fertilizer.Our literature search showed that queries combining the terms“seed dispersal,”“insectivorous bats,”“nectarivorous bats,”“use of guano,”and“ecosystem services”returned 577 studies,but half were experimental in nature.We found that the evaluation of ecosystem services by bats has been mostly conducted in the Neotropical and Palearctic regions.To detect differences across relevant studies,and to explain trends in the study of ecosystem services provided by bats,we performed generalized linear mixed models(GLMM)fitted with a Poisson distribution to analyze potential differences among sampling methods.We identified 409 bat species that provide ecosystem services,752 insect species consumed by bats and 549 plant species either dispersed or pollinated by bats.Our review summarizes the importance of conserving bat populations and the ecological services they provide,which is especially important during the current pandemic. 展开更多
关键词 CHIROPTERA ecosystem services frugivory guano insectivory NECTARIVORY pest control POLLINATION seed dispersal
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东南极阿曼达湾湖泊沉积物物源的元素分析
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作者 黄涛 孙立广 《极地研究》 CAS CSCD 北大核心 2012年第4期384-390,共7页
2008年在东南极阿曼达湾帝企鹅聚集区附近岛屿开展了野外工作,于岛屿湖泊集水区采集到两个短沉积柱样,分别命名为EPI和PI。根据野外实地考察情况和室内分割样品发现EPI柱样主要为泥炭沉积,含有大量水生藻类;PI柱样为黑色泥质沉积,散发... 2008年在东南极阿曼达湾帝企鹅聚集区附近岛屿开展了野外工作,于岛屿湖泊集水区采集到两个短沉积柱样,分别命名为EPI和PI。根据野外实地考察情况和室内分割样品发现EPI柱样主要为泥炭沉积,含有大量水生藻类;PI柱样为黑色泥质沉积,散发出浓烈的粪臭味,沉积物中含有大量的幼年帝企鹅绒毛和少量的残骨。对EPI和PI柱样沉积物、当地风化母岩及水生湖藻进行了部分生源元素和重金属元素浓度分析与对比,结果显示EPI柱样元素含量主要来源于背景母岩和湖藻沉积。PI柱样为帝企鹅粪土沉积序列,沉积物中的TC、TN、TP、Cu、Zn、Hg和Se的含量远远高于风化母岩中的浓度,其主要来源于帝企鹅粪的输入,而Pb元素主要来源于当地风化母岩的贡献。研究显示帝企鹅活动同样可以为南极贫瘠的陆地湖泊系统带来大量的营养物质,但同时也输入了大量的重金属污染元素。 展开更多
关键词 阿曼达湾 帝企鹅 鸟粪 湖泊沉积物 地球化学 东南极
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From sea to land: assessment of the bio-transport of phosphorus by penguins in Antarctica
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作者 秦先燕 孙立广 +4 位作者 BLAIS Jules M. 王玉宏 黄涛 黄温 谢周清 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2014年第1期148-154,共7页
In Antarctica, the marine ecosystem is dynamically interrelated with the terrestrial ecosystem. An example of the link between these two ecosystems is the biogeochemical cycle of phosphorus. Bio- vectors, such as peng... In Antarctica, the marine ecosystem is dynamically interrelated with the terrestrial ecosystem. An example of the link between these two ecosystems is the biogeochemical cycle of phosphorus. Bio- vectors, such as penguins, transport phosphorus from sea to land, play a key role in this cycle. In this paper, we selected three colonies of penguins, the most important seabirds in Antarctica, and computed the annual quantity of phosphorus transferred from sea to land by these birds. Our results show that adult penguins from colonies at Ardley Island, the Vestfold Hills, and Ross Island could transfer phosphorus in the form of guano at up to 12 349, 167 036, and 97 841 kg/a, respectively, over their breeding period. These quantities are equivalent to an annual input of 3.96× 10^9-1.63 × 10^10 kg of seawater to the land of Antarctica. Finally, we discuss the impact of phosphorus on the ice-flee areas of the Antarctica. 展开更多
关键词 Southern Ocean sea-land ecosystem phosphorus cycle PENGUIN guano
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再议科学发现的逻辑——从“鸟粪掺杂石墨烯实验”事件说开去
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作者 郭思敏 《自然辩证法研究》 CSSCI 北大核心 2021年第8期92-97,共6页
石墨烯掺杂实验是当前石墨烯研究的热门领域,每年有大量研究者用各种元素进行石墨烯掺杂实验,并将结果发表在国际顶级期刊上。这一背景下,普梅拉教授用鸟粪进行石墨烯掺杂实验居然也获得正面效应,由此发表文章对这一现象进行质疑。鸟粪... 石墨烯掺杂实验是当前石墨烯研究的热门领域,每年有大量研究者用各种元素进行石墨烯掺杂实验,并将结果发表在国际顶级期刊上。这一背景下,普梅拉教授用鸟粪进行石墨烯掺杂实验居然也获得正面效应,由此发表文章对这一现象进行质疑。鸟粪掺杂石墨烯事件实际上涉及到科学哲学的经典问题:是否存在科学发现的逻辑?科学探索的结构性突破是如何产生的?又是如何被众人所接受并认可的?大科学时代对包括试错法在内的经典科学发现方法的深入反思,不但具有现实意义,也有助于深入阐明科学进步的基本规律。 展开更多
关键词 石墨烯 鸟粪 科学发现 试错法 科学发现的逻辑
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鸟粪以及土壤中硫酸盐还原菌在湿地汞污染监测中的作用
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作者 马志龙 李天芳 +1 位作者 刘化金 周学红 《野生动物学报》 北大核心 2016年第4期370-375,共6页
汞是环境中受关注的污染物质,作为湿地生态系统中最主要的汞甲基化细菌,硫酸盐还原菌(Sulfate-Reducing Bacteria)可以将无机汞转化为毒性较强的甲基汞,从而给人类及其他生物带来更高的健康风险。本文通过论述鸟粪对湿地汞污染的指示性... 汞是环境中受关注的污染物质,作为湿地生态系统中最主要的汞甲基化细菌,硫酸盐还原菌(Sulfate-Reducing Bacteria)可以将无机汞转化为毒性较强的甲基汞,从而给人类及其他生物带来更高的健康风险。本文通过论述鸟粪对湿地汞污染的指示性作用,鸟粪及其土壤中硫酸盐还原菌的富集状况,以及硫酸盐还原菌在监测湿地汞污染状况中的作用得到以下结论:(1)通过对湿地鸟粪以及土壤中硫酸盐还原菌的活性以及浓度的检测,可以监测湿地汞的甲基化状况;(2)通过对影响硫酸盐还原菌反应速率的多种外界因素的变化状况的监测,可以对湿地汞污染的变化趋势进行间接性预测。未来的研究方向应主要放在多个影响因素对硫酸盐还原菌反应速率的综合性影响上,并制定出一套能够准确地反映出湿地汞污染状况的检测标准。 展开更多
关键词 鸟粪 土壤 硫酸盐还原菌 湿地
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Effect of Compost Based Substrate and Mycorrhizal Inoculum in Potted Geranium Plants
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作者 Monica Tullio Federico Calviello Elvira Rea 《Journal of Life Sciences》 2012年第7期771-775,共5页
Two are the critical factors in the commercial production of ornamental plants: the substrate and the fertilization method, since the "sustainable floriculture" discourages the use of synthetic chemical fertilizers... Two are the critical factors in the commercial production of ornamental plants: the substrate and the fertilization method, since the "sustainable floriculture" discourages the use of synthetic chemical fertilizers and peat-based substrates. The aim of this paper was to test a peat/compost based substrate and a guano + mycorrhizal inoculum fertilizer mixture, in order to obtain a sustainable quality yield of geranium plants. Geranium cuttings (Pelargonium zonale cv. real polaris and Pelargonium grandiflorum cv. lotus) were grown for two months in a glasshouse. Peat, in the growing substrate, was replaced with high quality compost (20% and 40% as reduction percentages). The fertilizer mixture was made up of guano (3 g/L) and mycorrhizal inoculum (7.5 L/m^3). Plants of Pelargonium cv. Real polaris, grown on a substrate made up of peat and 20% of high quality compost, presented the better trade features, so to satisfy the "sustainable floriculture" need. 展开更多
关键词 Compost-peat horticultural products PELARGONIUM guano mycorrhizal inoculums.
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洞穴蝙蝠粪堆积物在古环境研究中的应用
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作者 王曦谦 高永利 +6 位作者 王甜莉 程鹏 臧婧杰 Geary Schindel 李东 李云霞 谭亮成 《第四纪研究》 CAS CSCD 北大核心 2020年第4期1037-1047,共11页
蝙蝠粪堆积物是洞穴沉积物的一种,由蝙蝠排泄后在洞穴底部堆积而成.由于蝙蝠食物来源单一,以洞穴周边动植物为食,动植物受气候变化影响,并通过食物链进入蝙蝠粪,因此蝙蝠粪中包含有丰富的过去环境变化信息,其沉积序列可以用来进行古环... 蝙蝠粪堆积物是洞穴沉积物的一种,由蝙蝠排泄后在洞穴底部堆积而成.由于蝙蝠食物来源单一,以洞穴周边动植物为食,动植物受气候变化影响,并通过食物链进入蝙蝠粪,因此蝙蝠粪中包含有丰富的过去环境变化信息,其沉积序列可以用来进行古环境重建.蝙蝠粪在古环境研究中的优点在于蝙蝠粪在热带和亚热带地区沉积速率快,记录的环境信息多样,并可以通过加速器质谱14C定年获得高精度年代,是一种很好的环境记录载体.尽管从20世纪80年代开始,就有学者逐步关注蝙蝠粪研究,但当时各项指标所指示的意义不太明确,研究范围较为局限,随后研究开展得较少,关注度也不高.本文梳理了目前全球蝙蝠粪研究现状,讨论了蝙蝠粪中可以用来重建古环境的各种代用指标及其指示意义;最后,介绍了我们在美国得克萨斯州Devil's Sinkhole蝙蝠粪的初步研究结果,并对这一研究载体的未来发展方向进行展望. 展开更多
关键词 洞穴蝙蝠粪 代用指标 古环境 古气候 Devil's Sinkhole
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卷柏化学成分研究 被引量:44
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作者 郑晓珂 毕跃峰 +3 位作者 冯卫生 史社坡 王继峰 牛建昭 《药学学报》 CAS CSCD 北大核心 2004年第4期266-268,共3页
目的 研究中药卷柏 (Selaginellatamariscina (Beauv .)Spring)水提物中的化学成分。方法 利用SephadexLH 2 0及硅胶等色谱技术进行分离纯化 ,根据理化性质、光谱数据进行结构鉴定。结果 得到 4个化合物 ,分别鉴定为 1 羟基 2 [2 ... 目的 研究中药卷柏 (Selaginellatamariscina (Beauv .)Spring)水提物中的化学成分。方法 利用SephadexLH 2 0及硅胶等色谱技术进行分离纯化 ,根据理化性质、光谱数据进行结构鉴定。结果 得到 4个化合物 ,分别鉴定为 1 羟基 2 [2 羟基 3 甲氧基 5 (1 羟基乙基 ) 苯基 ] 3 (4 羟基 3 ,5 二甲氧基苯基 ) 丙烷 1 O β D 葡糖苷 (卷柏苷B ,I) ,腺苷 (II) ,鸟苷 (III) ,熊果苷 (IV)。结论 卷柏苷B为新化合物 ,腺苷、熊果苷。 展开更多
关键词 卷柏 化学成分 卷柏苷B 腺苷 鸟苷 熊果苷
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湖南省输电线路鸟害障碍分析及防治 被引量:33
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作者 王峰 黄福勇 +2 位作者 曾昊 彭波 王成 《高压电器》 CAS CSCD 北大核心 2011年第10期97-101,105,共6页
在对湖南省电力公司所属220 kV输电线路2006-2010年鸟害障碍调查的基础上,进行了分类统计,总结了湖南输电线路鸟害障碍跳闸的特点,对由鸟害障碍引起输电线路跳闸的原因进行了研究。深入剖析了鸟害障碍跳闸机理,针对各种鸟害障碍,提出了&... 在对湖南省电力公司所属220 kV输电线路2006-2010年鸟害障碍调查的基础上,进行了分类统计,总结了湖南输电线路鸟害障碍跳闸的特点,对由鸟害障碍引起输电线路跳闸的原因进行了研究。深入剖析了鸟害障碍跳闸机理,针对各种鸟害障碍,提出了"综合治理"来预防输电线路鸟害障碍的研究方向,建议从预防措施、技术措施和管理措施3方面入手,综合考虑防治线路鸟害障碍,可取得良好效果。 展开更多
关键词 输电线路 鸟害障碍 鸟粪闪络 驱鸟装置 绝缘子
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浅议污水厂的磷回收 被引量:23
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作者 陈利德 王偲 《环境工程》 CAS CSCD 北大核心 2004年第4期26-27,共2页
为控制水体富营养化 ,城市污水处理厂采用生物除磷脱氮工艺 ,因此在某些处理单元中有富磷液流产生。根据乌粪石生成的原理 ,在富磷液流中投加镁源 ,并调节pH为 8 5~ 9 0时 ,即能以乌粪石形式回收磷以补充日益短缺的磷资源。
关键词 污水厂 回收 生物除磷脱氮 城市污水处理厂 水体富营养化 投加 工艺 粪石 流产 调节
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330 kV输电线路复合绝缘子鸟粪闪络特性研究 被引量:20
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作者 刘世涛 吴波 +7 位作者 吴旭涛 陈泓 李秀广 常彬 贾志东 徐笑然 欧阳小刚 李阳林 《高压电器》 CAS CSCD 北大核心 2018年第4期135-141,共7页
2011年以来,宁夏地区330 kV线路多次发生鸟害故障跳闸,严重威胁了宁夏电网的安全稳定运行。目前国内外对于引起330 kV线路的鸟粪闪络机理及其影响因素仍缺乏研究。文中首先研究了低温环境下染污硅橡胶的憎水特性,然后基于鸟粪下落过程... 2011年以来,宁夏地区330 kV线路多次发生鸟害故障跳闸,严重威胁了宁夏电网的安全稳定运行。目前国内外对于引起330 kV线路的鸟粪闪络机理及其影响因素仍缺乏研究。文中首先研究了低温环境下染污硅橡胶的憎水特性,然后基于鸟粪下落过程中最大连续长度与鸟粪参数的关系,试验研究了鸟粪下落方式、下落通道、电导率、粘度、体积、下落位置和相对湿度等对330 kV复合绝缘子闪络特性的影响。试验结果表明,330 kV复合绝缘子的鸟粪闪络概率随距离的减小、鸟粪长度的增加而增加;鸟粪脱离横担比未脱离横担下落时发生闪络的概率更低;带均压环比不带均压环时绝缘子更易发生闪络;当鸟粪体积、鸟粪电导率、空气相对湿度越大时,发生鸟粪闪络的概率越大。 展开更多
关键词 330 kV复合绝缘子 鸟粪闪络 下落方式 电导率 粘度 相对湿度
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