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Isothermal Stage Kinetics of Direct Coal Liquefaction for Shenhua Shendong Bituminous Coal

ENERGY & FUELS 2015年第11期29卷 7526-7531页

作者： Jiang, Hongbo Wang, Xiuhui Shan, Xiangen Li, Kejian Zhang, xuwen cao, Xueping Weng, Huixin E China Univ Sci & Technol Res Inst Petr Proc Shanghai 200237 Peoples R China Natl Engn Lab Direct Coal Liquefact Shanghai 201108 Peoples R China

To study the direct coal liquefaction in the isothermal stage of Shenhua Shendong bituminous coal, the direct coal liquefaction with an iron-based catalyst was carried out in a 0.01 ton/day continuous tubular facility in the temperature range of 445-465 degrees C, with hydrogenated anthracene and wash oil as the solvent. An eight-lump kinetic model of the isothermal stage was proposed, and the kinetic parameters were estimated. The result showed that, in the isothermal stage, the oil was mainly obtained from pre-asphaltene and asphaltene (PAA) rather than from coal directly. The model was valid for the isothermal stage of direct coal liquefaction.

关键词： TEMPERATURE RANGE Mentoring Coal liquefaction absorbent oil kinetic model stream stage Kinetic parameters bituminous coal

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黄鳝体表粘液中基因组DNA的提取与分析

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安徽农业大学学报 2016年第2期43卷 305-308页

作者：胡彬曹哲明丁炜东邴旭文南京农业大学无锡渔业学院无锡214125 中国水产科学研究院淡水渔业研究中心无锡214081

黄鳝基因组DNA一直采用抽血或剪取肌肉来提取,但是采血或剪取肌肉后黄鳝成活率很低。为了保留亲本,尝试从黄鳝体表粘液中提取DNA,并采用紫外分光光度计对提取到的DNA的纯度和浓度进行了检测。结果表明,用蛋白酶K消化,酚仿抽提后从粘液... 详细信息

黄鳝基因组DNA一直采用抽血或剪取肌肉来提取,但是采血或剪取肌肉后黄鳝成活率很低。为了保留亲本,尝试从黄鳝体表粘液中提取DNA,并采用紫外分光光度计对提取到的DNA的纯度和浓度进行了检测。结果表明,用蛋白酶K消化,酚仿抽提后从粘液中得到的DNA的纯度与从肌肉中提取到的相差不大,但是提取到的量较少。为了验证提取的DNA是不是黄鳝基因组DNA,用黄鳝actin引物和18S r RNA基因引物扩增之后检测到了粘液中的较亮的DNA片段。为了进一步确认检测到的是黄鳝的DNA,我们又对得到的DNA进行了扩增,并得到的产物进行了克隆和测序。结果表明,粘液中提取到的DNA是黄鳝的基因组DNA。随后又选择了60尾黄鳝,提取其粘液之后对其成活率进行统计,养殖1个月后黄鳝的成活率都在95%以上。此黄鳝体表粘液提取DNA方法能提取高质量的DNA,可用于用于PCR鉴定。

关键词：黄鳝基因组DNA 粘液

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江苏省不同营养状况湖泊底栖动物群落结构与多样性比较

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生态毒理学报 2017年第1期12卷 163-172页

作者：李娣李旭文牛志春张军毅徐东炯李继影陈明陈志芳曹毅李朝卜伟于红霞南京大学环境学院污染控制与资源化研究国家重点实验室南京210046 江苏省环境监测中心南京210036 无锡市环境监测中心站无锡214000 常州市环境监测中心常州213001 苏州市环境监测中心苏州215004 南京市环境监测中心站南京210013 扬州市环境监测中心站扬州225007 宿迁市环境监测中心站宿迁223800 徐州市环境监测中心站徐州221006 泰州市环境监测中心站泰州225300

为了解江苏省湖泊底栖动物群落结构和多样性并研究其对水环境质量变化的响应,于2012年春秋两季对江苏省16个湖泊51个采样点湖泊底栖动物群落结构与多样性以及湖泊综合营养状态指数进行调查,分析水质指标与底栖动物指数间Pearson相关关... 详细信息

为了解江苏省湖泊底栖动物群落结构和多样性并研究其对水环境质量变化的响应,于2012年春秋两季对江苏省16个湖泊51个采样点湖泊底栖动物群落结构与多样性以及湖泊综合营养状态指数进行调查,分析水质指标与底栖动物指数间Pearson相关关系。结果表明,江苏省16个湖泊营养状态指数范围为35.5~66.4,其中约81.2%的湖泊处于轻度-中度富营养状态,表明水质从好到中度污染;湖泊底栖动物优势种为寡毛类的霍甫水丝蚓(Limnodrilus hoffmeisteri),优势度为13.0%;香浓多样性指数(Shannon-Wiener diversity index)范围为0.00~2.20,级别范围由极贫乏到较丰富状态,表明水质污染程度从重度到轻度污染。从全省尺度看,水质评价结果与生物学(香浓多样性指数、Pielou均匀度指数和Biotic Index(BI)指数)评价结果存在一定差异。与历史数据相比,江苏省湖泊底栖动物清洁敏感物种减少甚至消失,总体群落结构趋于小型化。16个湖泊水体总氮和总磷与底栖动物密度呈显著负相关,而综合营养状态指数与底栖动物指数(香浓多样性指数、Pielou均匀度指数和BI指数)间关系不显著。上述研究结果表明综合营养状态指数无法完全客观反映湖泊水生态健康状况,因此需要综合水质、水文、水生生物、生境状况等因素发展新的评价指标体系。

关键词：江苏省富营养化底栖动物多样性

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu cao Jianshe cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang University HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China University of Geosciences Beijing China University of Geosciences WuhanHubei China University of Mining and Technology XuzhouJiangsu China West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East China University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

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Correction: CEPC Technical Design Report: Accelerator

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Radiation Detection Technology and Methods 2024年第1期9卷 184-192页

作者： Abdallah, Waleed de Freitas, Tiago CarlosAdorno Afanaciev, Konstantin Ahmad, Shakeel Ahmed, Ijaz Ai, Xiaocong Aleem, Abid Altmannshofer, Wolfgang Alves, Fabio An, Weiming An, Rui Anderle, Daniele Paolo Antusch, Stefan Arai, Yasuo Arbuzov, Andrej Arhrib, Abdesslam Ashry, Mustafa Bai, Sha Bai, Yu Bai, Yang Bairathi, Vipul Balazs, Csaba Bambade, Philip Ban, Yong Bandyopadhyay, Triparno Bao, Shou-Shan Barber, Desmond P. Bat, Ays¸e Batozskaya, Varvara Behera, Subash Chandra Belyaev, Alexander Bertucci, Michele Bi, Xiao-Jun Bi, Yuanjie Bian, Tianjian Bianchi, Fabrizio Bieko¨tter, Thomas Biglietti, Michela Bilanishvili, Shalva Binglin, Deng Bodrov, Denis Bogomyagkov, Anton Bondarenko, Serge Boogert, Stewart Boonekamp, Maarten Borri, Marcello Bosotti, Angelo Boudry, Vincent Boukidi, Mohammed Boyko, Igor Bozovic, Ivanka Bozzi, Giuseppe Brient, Jean-Claude Budzinskaya, Anastasiia Bukhari, Masroor Bytev, Vladimir Cacciapaglia, Giacomo Cai, Hua Cai, Wenyong Cai, Wujun Cai, Yijian Cai, Yizhou Cai, Yuchen Cai, Haiying Cai, Huacheng Calibbi, Lorenzo Cang, Junsong cao, Guofu cao, Jianshe Chance, Antoine Chang, Xuejun Chang, Yue Chang, Zhe Chang, Xinyuan Chao, Wei Chatrabhuti, Auttakit Che, Yimin Che, Yuzhi Chen, Bin Chen, Danping Chen, Fuqing Chen, Fusan Chen, Gang Chen, Guoming Chen, Hua-Xing Chen, Huirun Chen, Jinhui Chen, Ji-Yuan Chen, Kai Chen, Mali Chen, Mingjun Chen, Mingshui Chen, Ning Chen, Shanhong Chen, Shanzhen Chen, Shao-Long Chen, Shaomin Chen, Shiqiang Chen, Tianlu Chen, Wei Chen, Xiang Chen, Xiaoyu Chen, Xin Chen, Xun Chen, Xurong Chen, Ye Chen, Ying Chen, Yukai Chen, Zelin Chen, Zilin Chen, Boping Chen, Chunhui Cheng, Hok Chuen Cheng, Huajie Cheng, Shan Cheng, Tongguang Chi, Yunlong Chimenti, Pietro Chiu, Wen Han Cho, Guk Chu, Ming-Chung Chu, Xiaotong Chu, Ziliang Coloretti, Guglielmo Crivellin, Andreas Cui, Hanhua Cui, Xiaohao Cui, Zhaoyuan D’Anzi, Brunella Dai, Ling-Yun Dai, Xinchen Dai, xuwen De Maria, Antonio De Filippis, Nicola De La Taille, Christophe De Mori, Francesca De Sio, Chiara Del Core, Elisa Deng, Cairo University Giza Egypt Xi’an Jiaotong-Liverpool University Suzhou China Institute of Power Engineering of National Academy of Sciences of Belarus Minsk Belarus Pakistan Institute of Nuclear Science and Technology (PINSTECH) Islamabad Pakistan Applied Physics Department Science and Technology Federal Urdu University of Arts Islamabad Pakistan Zhengzhou University Zhengzhou China Institute of High Energy Physics Chinese Academy of Sciences Beijing China University of California Santa Cruz Santa Cruz USA Nanjing University Nanjing China Beijing Normal University Beijing China Harvard University Cambridge USA South China Normal University Guangzhou China University of Basel Basel Switzerland High Energy Accelerator Research Organization (KEK) Tsukuba Japan Joint Institute for Nuclear Research Dubna Russia Faculty of Sciences and Techniques Université Abdelmalek Essaadi Tangier Morocco Southeast University Nanjing China Department of Physics University of Wisconsin–Madison Madison USA Instituto de Alta Investigación Universidad de Tarapacá Arica Chile Monash University Melbourne Australia Laboratoire de Physique des 2 infinis Irène Joliot-Curie – IJCLab Orsay France Peking University Beijing China Department of Physics and Nanotechnology SRM Institute of Science and Technology Kattankulathur India Shandong University Jinan China University of New Mexico Albuquerque USA Bandirma Onyedi Eylul University Bandırma Turkey National Centre for Nuclear Research Warsaw Poland Indian Institute of Technology Madras (IN) Chennai India University of Southampton Southampton UK INFN Milano - LASA Segrate Italy Sun Yat-Sen University Guangzhou China China Institute of Atomic Energy Beijing China INFN-University of Torino Turin Italy Karlsruhe Institute of Technology Institute for Theoretical Physics Karlsruhe Germany INFN-Sezione di Roma Tre Rome Italy Kutaisi International University Kutaisi Georgia Soochow University Suzhou China Budker Institute

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Synthesis of Crystalline Scorodite by ozone oxidization combined with biooxidation

Synthesis of Crystalline Scorodite by ozone oxidization comb...

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The 6th International Conference on Hydrometallurgy(第六届国际湿法冶金会议)

作者： xuwen Ye Guangji Zhang Yuejia Jiang Junya cao Chao Yang Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China China University of Mining and Technology in BeijingBeijing 100083China

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黄鳝Dmrt3基因在性腺中的甲基化差异

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中国农学通报 2014年第35期30卷 126-131页

作者：宋颖邴旭文曹哲明丁炜东南京农业大学无锡渔业学院江苏无锡214081 中国水产科学研究院淡水渔业研究中心江苏无锡214081

黄鳝具有性逆转的特点,为了找到与黄鳝性别调控直接相关的序列位点,分析黄鳝性别相关基因在雌雄中的序列差异,本实验选择了性别相关基因Dmrt3作为研究对象,通过比较该基因在雌雄性腺中的甲基化状态就可以分析出参与性别控制的具体位点... 详细信息

黄鳝具有性逆转的特点,为了找到与黄鳝性别调控直接相关的序列位点,分析黄鳝性别相关基因在雌雄中的序列差异,本实验选择了性别相关基因Dmrt3作为研究对象,通过比较该基因在雌雄性腺中的甲基化状态就可以分析出参与性别控制的具体位点。实验通过甲基化敏感的限制性内切酶Hpa II酶切黄鳝的雌雄性腺,根据已知的m RNA序列设计相关引物扩增酶切产物,同时与未酶切的对照组进行比较,分析差异条带并对实验结果进行验证。研究结果发现,Dmrt3-FR2扩增序列中,精巢是去甲基化状态,而卵巢是甲基化状态,可以推测该位点很可能与性别调控相关。本实验补充了从分子学角度研究黄鳝性别调控的不足,同时也验证了用甲基化手段研究黄鳝性别调控的可行性,为其他研究提供了理论依据。

关键词： DNA 甲基化黄鳝性别控制

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Zacopride selectively activates the Kir2.1 channel via a PKA signaling pathway in rat cardiomyocytes

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Science China(Life Sciences) 2013年第9期56卷 788-796页

作者： ZHANG Li LIU QingHua LIU ChengFang ZHAI xuwen FENG QiLong XU RuiLing CUI XiangLi ZHAO ZhiQing cao JiMin WU BoWei Department of Physiology and the Key Laboratory of Cellular Physiology Ministry of Education Shanxi Medical University Department of Pathophysiology Shanxi Medical University Department of Biomedical Sciences Mercer University School of Medicine Department of Physiology Institute of Basic Medical Sciences Chinese Academy of Medical Sciences School of Basic Medicine Peking Union Medical College

We recently reported that zacopride is a selective inward rectifier potassium current (IK1 ) channel agonist, suppressing ventricular arrhythmias without affecting atrial arrhythmias. The present study aimed to investigate the unique pharmacological properties of zacopride. The whole-cell patch-clamp technique was used to study IK1 currents in rat atrial myocytes and Kir2.x currents in human embryonic kidney (HEK)-293 cells transfected with inward rectifier potassium channel (Kir)2.1, Kir2.2, Kir2.3, or mutated Kir2.1 (at phosphorylation site S425L). Western immunoblots were performed to estimate the relative protein expression levels of Kir2.x in rat atria and ventricles. Results showed that zacopride did not affect the IK1 and transmembrane potential of atrial myocytes. In HEK293 cells, zacopride increased Kir2.1 homomeric channels by 40.7%±9.7% at 50 mV, but did not affect Kir2.2 and Kir2.3 homomeric channels, and Kir2.1-Kir2.2, Kir2.1-Kir2.3 and Kir2.2-Kir2.3 heteromeric channels. Western immunoblots showed that similar levels of Kir2.3 protein were expressed in rat atria and ventricles, but atrial Kir2.1 protein level was only 25% of that measured in the ventricle. In addition, 5-hydroxytryptamine (5-HT) 3 receptor was undetectable, whereas 5-HT 4 receptor was weakly expressed in HEK293 cells. The Kir2.1-activating effect of zacopride in these cells was abolished by inhibition of protein kinase A (PKA), but not PKC or PKG. Furthermore, zacopride did not activate the mutant Kir2.1 channel in HEK293 cells but selectively activated the Kir2.1 homomeric channel via a PKA-dependent pathway, independent to that of the 5-HT receptor.

关键词： zacopride inward rectifier potassium channel 5-HT receptor protein kinase

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大鼠嗅鞘细胞的纯化及活性检测

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宁夏医科大学学报 2014年第1期36卷 21-24,F0004页

作者：丁冬曹军王丽梅郝铁成焦旭文牛建国李军平何仲义宁夏医科大学银川750004 宁夏医科大学人体解剖与组织胚胎学系银川750004

目的采用改良差速贴壁联合胰酶限时消化法纯化大鼠嗅鞘细胞,并检测嗅鞘细胞的生物活性。方法分离新生7d的SD大鼠嗅球嗅鞘细胞,分组后采用改良的6h和18h两次差速贴壁法联合不同时段（1、3和5min）胰酶消化法纯化培养,观察不同时段纯化的... 详细信息

目的采用改良差速贴壁联合胰酶限时消化法纯化大鼠嗅鞘细胞,并检测嗅鞘细胞的生物活性。方法分离新生7d的SD大鼠嗅球嗅鞘细胞,分组后采用改良的6h和18h两次差速贴壁法联合不同时段（1、3和5min）胰酶消化法纯化培养,观察不同时段纯化的嗅鞘细胞的形态特点及生长情况;应用FITC标记的神经生长因子受体p75抗体（兔抗鼠NGFRp75抗体）检测嗅鞘细胞并评估细胞纯度;应用CCK-8法和酶联免疫吸附法分别检测嗅鞘细胞在纯化后3～15d的增殖活性和分泌脑源性神经营养因子的含量。结果随着细胞的生长,梭形的嗅鞘细胞逐渐增多;改良差速贴壁联合胰酶限时消化1min、3min、5min法所得嗅鞘细胞纯度分别为（57.52±2.13）%、（78.95±2.60）%、（49.01±0.74）%,3min组最明显,组间两两比较差异有统计学意义（P〈0.05）;改良差速贴壁法联合胰酶限时消化1min、3min、5min法所得嗅鞘细胞在纯化后7、9、11d时增殖的细胞数目和脑源性神经营养因子分泌量显示3min组最优,组间比较差异有统计学意义（P〈0.05）。结论改良差速贴壁（6h＋18h）联合胰酶限时消化3min的纯化方法能获得较高纯度的嗅鞘细胞。

关键词：嗅鞘细胞细胞纯度细胞增殖脑源性神经营养因子

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水力负荷对潜流湿地去除污水处理厂二级出水中氮磷的影响

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水处理技术 2012年第8期38卷 118-121页

作者：王昊曹国凭何绪文杨永刘晓河北联合大学建筑工程学院河北唐山063009 中国矿业大学(北京)化学与环境工程学院北京100083

采用水平-石灰石、水平-沸石、垂直-沸石、垂直-改性沸石等4种潜流湿地对污水处理厂二级出水进行深度处理研究,探讨各系统稳定运行条件下,不同水力负荷对4种潜流湿地脱氮除磷效果的影响,以及4种湿地的去除污染物效果的差异性。结果表明... 详细信息

采用水平-石灰石、水平-沸石、垂直-沸石、垂直-改性沸石等4种潜流湿地对污水处理厂二级出水进行深度处理研究,探讨各系统稳定运行条件下,不同水力负荷对4种潜流湿地脱氮除磷效果的影响,以及4种湿地的去除污染物效果的差异性。结果表明,当进水水质为污水处理厂二级排放标准时,在一定的运行条件下,与垂直潜流湿地相比,水平潜流湿地对氮素的去除效果受水力负荷影响更大。其中,水平-沸石潜流湿地对NH3-N的去除率最高达到(96.5±2.58)%,而水平-石灰石潜流湿地最低仅为(78.7±3.64)%;水平-沸石潜流湿地对TN的去除率最高达到(94.5±2.58)%,最低仅为(66.1±2.02)%。另外,与水平流湿地相比,垂直流湿地对污水中磷素的去除效果较好,同时,垂直-沸石湿地表现出了对磷素最佳的去除效果,其对PO43--P的去除率最高达到(72.1±2.29)%,而对TP的去除率最高最高达到(73.8±3.25)%。此外,当水力负荷为0.093 m3/(m2.d)时,上述4种湿地对磷素均表现出了最佳的去除效果。

关键词：潜流湿地水力负荷污水处理厂二级出水氮磷

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