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棉针织印染废水不同回用工艺经济性分析

给水排水 2012年第11期38卷 72-75页

作者：常吟琳周律辛怡颖清华大学环境学院北京100084

针对目前棉针织印染行业废水回用率低的问题,根据废水源头控制原则,结合太湖流域实际情况,设计了两种回用工艺方案。方案一是对废水进行分质分流,将较清洁的废水直接回用,高污染的废水进行处理后达标排放,可以实现27.23%的废水回用率;... 详细信息

针对目前棉针织印染行业废水回用率低的问题,根据废水源头控制原则,结合太湖流域实际情况,设计了两种回用工艺方案。方案一是对废水进行分质分流,将较清洁的废水直接回用,高污染的废水进行处理后达标排放,可以实现27.23%的废水回用率;方案二是将较清洁的废水直接回用,同时将高污染的废水进行脱盐处理,回用于印染生产过程,可实现71.45%的废水回用率。对两种方案进行经济分析,结果表明,在目前的条件下,方案二比方案一具有更好的经济与环境效益。

关键词：棉针织印染废水回用工艺经济性分析

石墨烯-二氧化钛电活性膜降解对氯间二甲苯酚研究

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环境科学学报 2022年第5期42卷 195-207页

作者：白昱周律辛怡颖马可可张泽翰陈明如周岳溪清华大学环境学院北京100084 中国环境科学研究院北京100012

研究了石墨烯-二氧化钛电活性膜(rGO-TiO_(2)EM)降解对氯间二甲苯酚(PCMX)的机理及其出水对水环境和饮用水的安全性,采用有机-肼还原和真空抽吸法制备rGO-TiO_(2)EM,分析TiO_(2)添加量对rGO-TiO_(2)EM降解能力的影响,并对其降解PCMX的... 详细信息

研究了石墨烯-二氧化钛电活性膜(rGO-TiO_(2)EM)降解对氯间二甲苯酚(PCMX)的机理及其出水对水环境和饮用水的安全性,采用有机-肼还原和真空抽吸法制备rGO-TiO_(2)EM,分析TiO_(2)添加量对rGO-TiO_(2)EM降解能力的影响,并对其降解PCMX的影响因素、活性物质作用、反应动力学和生物毒性变化进行研究.结果表明,在rGO-TiO_(2)EM中,TiO_(2)与GO质量比应小于1:5;在停留时间为6.78 min,电流密度为4.42m A·cm^(-2),通量为132.64 L·m^(-2)·h^(-1),PCMX初始浓度为10 mg·L^(-1)的初始条件下,PCMX去除率可达82.6%,说明了rGO-TiO_(2)EM的高效性;随着TiO_(2)添加量的增加,PCMX的降解效率和副产物生成量下降,然而降解产物毒性上升,可知生成的副产物生物毒性均低于PCMX本身,对水环境和饮用水具有安全性;提高r GO-TiO_(2)EM运行过程中单位体积水量的电能投入不仅能提高降解效果,还能减少副产物的生成,保证水环境和饮用水的安全;rGO-TiO_(2)EM降解PCMX主要的机理为直接反应.综上所述,rGO-TiO_(2)EM方法具有高效、副产物较少及环境和饮用水安全风险较低等特点,是值得进一步研究和应用的方法.

关键词：石墨烯-二氧化钛电活性膜对氯间二甲苯酚降解电催化环境和饮用水安全风险

工业园区废水深度处理的风险识别及控制—以制革及毛皮加工工业园为例

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中国皮革 2015年第16期44卷 29-32,38页

作者：周律辛怡颖彭标蒋鹏飞刘华羊小玉清华大学环境学院北京100084 北京政平建设投资集团有限公司北京100037

针对制革及毛皮加工工业园区集中废水深度处理的水质排放要求,结合案例,通过技术比选,提出臭氧高级氧化结合曝气生物滤池技术作为深度处理的关键技术组成。基于所提出的组合关键技术构成的工艺,从技术本身和技术实施的外界条件等方面,... 详细信息

针对制革及毛皮加工工业园区集中废水深度处理的水质排放要求,结合案例,通过技术比选,提出臭氧高级氧化结合曝气生物滤池技术作为深度处理的关键技术组成。基于所提出的组合关键技术构成的工艺,从技术本身和技术实施的外界条件等方面,对可能产生的技术风险进行分析,结果表明:来自技术实施的外界条件对实施技术产生的风险较大,应重点从完善关键技术单元、优化工艺组合、合理设置处理单元和设备的冗余数量以及购买环境污染责任险等几方面入手,加强对技术风险的控制。

关键词：制革及毛皮加工工业园废水深度处理技术风险风险控制

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高级氧化法预处理毛皮加工工业园区集中废水

化工环保 2015年第5期35卷 445-449页

作者：辛怡颖彭标周律羊小玉蒋鹏飞刘华清华大学环境学院北京100084 北京政平建设投资集团有限公司北京100037

分别采用臭氧氧化和Fenton氧化两种高级氧化法对毛皮加工工业园区集中废水处理厂的进水进行了预处理,考察了各工艺条件对废水COD去除效果的影响,并比较了两种方法对废水可生化性的改善情况。实验结果表明:在初始废水pH为8、臭氧投加速率... 详细信息

分别采用臭氧氧化和Fenton氧化两种高级氧化法对毛皮加工工业园区集中废水处理厂的进水进行了预处理,考察了各工艺条件对废水COD去除效果的影响,并比较了两种方法对废水可生化性的改善情况。实验结果表明:在初始废水pH为8、臭氧投加速率为1.2 g/h的最适宜条件下,臭氧氧化法的COD去除率最高达72.7%,废水的可生化性显著提高,废水BOD5/COD由初始的0.06提高至0.12;在,n(Fe^(2+)):月(H_2O_2)=1:10、H_2O_2投加量为1.5 mL/L,、初始废水pH为2.5的最适宜条件下,Fenton氧化的COD去除率最高达33.4%,但废水可生化性不大;经臭氧氧化和Fenton氧化处理后,废水中的不饱和结构物质均得到了有效降解。

关键词：毛皮加工工业园区可生化性废水预处理臭氧氧化 Fenton氧化

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气液两相低温等离子体处理溴氨酸废水研究

水处理技术 2022年第1期48卷 44-48页

作者：马可可辛怡颖周律任滋禾白昱周岳溪清华大学环境学院 100084 中国环境科学研究院水污染控制技术研究中心北京100012

利用针-板式气液两相低温等离子体对蒽醌类染料中间体溴氨酸(BAA)模拟废水进行处理。结果表明,低温等离子体对溴BAA的降解符合准一级反应动力学。初始BAA的质量浓度分别为20、40、100 mg/L时,BAA的去除率分别为95.40%、90.86%、82.82%,... 详细信息

利用针-板式气液两相低温等离子体对蒽醌类染料中间体溴氨酸(BAA)模拟废水进行处理。结果表明,低温等离子体对溴BAA的降解符合准一级反应动力学。初始BAA的质量浓度分别为20、40、100 mg/L时,BAA的去除率分别为95.40%、90.86%、82.82%,反应速率常数分别为0.050 4、0.038 0、0.028 0 min^(-1)。酸性条件和增加氧气流量有利于脱色反应进行。活性尾气的利用可以显著提高BAA处理效率,反应动力学常数从0.038 0 min^(-1)提高到0.0497 min^(-1)。单环芳香族化合物或者酚类化合物的中间产物,与母体相比生物毒性显著增加。

关键词：溴氨酸降解等温等离子体动力学毒性评估

A Searchable Encryption Scheme Based on Lattice for Log Systems in Blockchain

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Computers, Materials & Continua 2022年第9期72卷 5429-5441页

作者： Gang Xu Yibo Cao Shiyuan Xu xin Liu Xiu-Bo Chen yiying Yu Xiaojun Wang School of Information Science and Technology North China University of TechnologyBeijing100144China School of Information Engineering Inner Mongolia University of Science and TechnologyBaotou014010China Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and TelecommunicationsBeijing100876China School of Electronic Engineering Dublin City UniversityDublinIreland

With the increasing popularity of cloud storage,data security on the cloud has become increasingly *** encryption has the ability to realize the privacy protection and security of data in the ***,with the continuous development of quantum computing,the standard Public-key Encryption with Keyword Search(PEKS)scheme cannot resist quantumbased keyword guessing ***,the credibility of the server also poses a significant threat to the security of the retrieval *** paper proposes a searchable encryption scheme based on lattice cryptography using blockchain to address the above ***,we design a lattice-based encryption primitive to resist quantum keyword guessing ***,blockchain is to decentralize the cloud storage platform’s jurisdiction of *** also ensures that the traceability of keyword retrieval process and maintains the credibility of search result,which malicious platforms are prevented as much as possible from deliberately sending wrong search *** but not least,through security analysis,our proposed scheme satisfies the credibility and unforgeability of the keyword *** comprehensive performance evaluates that our scheme has certain advantages in terms of efficiency compared with others.

关键词： Lattice cryptography searchable encryption blockchain privacy protection log system information security applied cryptography

Low-fat microwaved peanut snacks production:Effect of defatting treatment on structural characteristics,texture,color,and nutrition

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Journal of Integrative Agriculture 2024年第7期23卷 2491-2502页

作者： Bo Jiao xin Guo yiying Chen Shah Faisal Wenchao Liu Xiaojie Ma Bicong Wu Guangyue Ren Qiang Wang Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products ProcessingMinistry of Agriculture and Rural AffairsBeijing 100193China College of Food and Bioengineering Henan University of Science and TechnologyLuoyang 471000China State Key Laboratory of Food Science and Technology Jiangnan UniversityWuxi 214122China

This study develops low-fat microwaved peanut snacks(LMPS)using partially defatted peanuts(PDP)with different defatting ratios,catering to people’s pursuit of healthy,low-fat *** effects of defatting treatment on the structural characteristics,texture,color,and nutrient composition of LMPS were comprehensively *** structural characteristics of LMPS were characterized using X-ray micro-computed tomography(Micro-CT)and scanning electron microscope(SEM).The results demonstrated that the porosity,pore number,pore volume,brightness,brittleness,protein content,and total sugar content of LMPS all significantly increased(P<0.05)with the increase in the defatting *** the micro level,porous structure,cell wall rupture,and loss of intracellular material could be observed in LMPS after defatting *** made from PDP with a defatting ratio of 64.44%had the highest internal pore structural parameters(porosity 59%,pore number 85.3×10^(5),pore volume 68.23 mm3),the brightest color(L^(*) 78.39±0.39),the best brittleness(3.64±0.21)mm^(–1)),and the best nutrition(high protein content,(34.02±0.38)%;high total sugar content,(17.45±0.59)%;low-fat content,(27.58±0.85)%).The study provides a theoretical basis for the quality improvement of LMPS.

关键词： low-fat microwaved peanut snacks(LMPS) X-ray micro-computed tomography(Micro-CT) porosity texture color nutrition

Carbonization fabrication of a piezoresistive sensor with improved sensitivity via Ni decoration of carbonized cotton fibers

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Science China(Technological Sciences) 2022年第12期65卷 3000-3009页

作者： HE Xiang WANG FengMing LIANG yiying WU JiaWei LIANG JiongHong SHEN GengZhe LI BaiJun SU DaoJian ZHANG Chi SONG WeiDong HE xin School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China

The development of wearable electronics urgently requires the cost-effective and scalable fabrication of high-performance pressure *** work aims to develop a simple carbonization strategy to facilitate sensor sensitivity by decorating discrete nickel nanoparticles on carbonized cotton fibers(CCFs).The increased air gap between the fibers at the unloading state,as well as the enlargement of the deformation distance and the contact area between the conductive materials at the loading state,contribute to a more significant resistance ***,the sensitivity of the piezoresistive sensor is improved more than 5 times within 1 N by introducing Ni nanoparticles,and it is characterized by a rapid response(~160 ms)and recovery(~100 ms),wide detection range(~20 N/~130 kPa),and good durability(~4000 cycles).The flexible sensor has been successfully demonstrated to monitor human movements,physical stimuli,and pressure ***,the proposed device can control temperature accurately as a uniform and large-scale *** work reveals that the Ni@CCFs-based sensor is prospective in wearable electronics,artificial intelligence,health monitoring,medical diagnosis and treatment.

关键词： carbonized cotton fabric Ni nanoparticles flexible piezoresistive sensor wearable device

Emergence of a New Sublineage of Candida auris Causing Nosocomial Transmissions—Beijing Municipality,China,March–September 2023

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China CDC weekly 2024年第44期6卷 1147-1151,I0003-I0007页

作者： Zhenjia Liu xinfei Chen Rongchen Dai Yu Bai Feiyi Liu yiying Zhao Xuesong Shang Chunxia Yang xin Fan Department of Infectious Diseases and Clinical Microbiology Beijing Institute of Respiratory Medicine and Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina Department of Laboratory Medicine State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical SciencesBeijingChina Graduate School Peking Union Medical CollegeBeijingChina.

What is already known about this topic?Candida auris(***)is an emerging multidrugresistant fungal pathogen classified as a global public health threat with notable mortality and nosocomial transmission *** China,the first *** case was reported from Beijing in ***,large cases of nosocomial transmission have rarely been identified in this *** is added by this report?During March–September 2023,*** was isolated from 17 patients admitted to CY Hospital in *** strains were resistant to fluconazole and amphotericin *** addition,three isolates were resistant to ***-genome sequencing(WGS)analysis revealed that all strains found in this hospital belonged to *** Clade *** strains were genetically closely related to the *** strains reported in two other hospitals in Beijing since 2021,forming a new sublineage different from the Clade I strains causing previous outbreaks in the Eastern Provincial-level administrative divisions and Hong Kong Special Administrative *** are the implications for public health practice?The dissemination of *** has become an increasing threat to healthcare facilities in *** WGS analysis indicates the spread of a unique sublineage of *** Clade I isolates in ***,enhanced surveillance and hospital infection control of *** are warranted to resolve the public health challenge.

关键词： admitted Eastern Whole