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Endosulfan residues and farmers’replacement behaviors of endosulfan in the north-west inland cotton region

Frontiers of Environmental Science & Engineering 2024年第4期18卷 35-47页

作者： Shuyan Zhou Yang Zhang Jingjing Wang shikun cheng Fuyan Zhuo Yun Hong School of Energy and Environmental Engineering University of Science and Technology Beijing 100083China Foreign Environmental Cooperation Center Ministry of Ecology and Environment of the People’s Republic of ChinaBeijing 100035China United Nations Development Programme in China Beijing 100600China National Agro-Tech Extension and Service Center Beijing 100125China

We assessed the situation of endosulfan residues in cotton fields after the endosulfan ban came into effect and the current knowledge,attitude,and practice(KAP)of cotton farmers on the phase-out of endosulfan and the application of alternative *** samples(n=91)of cotton fields were collected from the major cotton-producing areas in China,namely the north-west inland cotton region,and the endosulfan residues were analyzed.A KAP survey was carried out for cotton farmers,and 291 questionnaires were *** influences of gender,age,education background,cotton planting years,publicity and training,income sources,and other factors on cotton farmers’KAP were *** results showed that endosulfan sulfate was the main endosulfan residue in the soil,followed byβ-endosulfan andα-endosulfan,the average residual contents were 0.569,0.139,and 0.060μg/kg,*** results of the KAP study showed that cotton farmers scored low on knowledge about the phase-out of endosulfan and the application of alternative technologies but high on attitude and *** number of family members,years of cotton planting,age,and the cottonplanting area had different degrees of influence on KAP *** training could significantly improve the KAP scores of cotton farmers;training should be more targeted and designed reasonably for key groups,such as men and the population under 30,followed by training them to use pesticides *** large-scale cotton growers,training should focus on green prevention and control technologies.

关键词： Cotton fields Endosulfan residues Farmers KAP survey Replacement behaviours

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环境工程专业课程思政建设的思考与建议

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北京化工大学学报（社会科学版） 2024年第1期 116-121页

作者：董春阳程世昆北京科技大学党委教师工作部北京100083 北京科技大学能源与环境工程学院北京100083

环境工程专业是为我国生态文明发展培养和输送人才的重要专业。新时代,面对服务国家生态文明战略和落实教育立德树人根本任务,环境工程专业在课程思政建设中面临着新的机遇与挑战。本文通过分析高校课程思政建设的必要性以及当前环境工... 详细信息

环境工程专业是为我国生态文明发展培养和输送人才的重要专业。新时代,面对服务国家生态文明战略和落实教育立德树人根本任务,环境工程专业在课程思政建设中面临着新的机遇与挑战。本文通过分析高校课程思政建设的必要性以及当前环境工程专业课程思政建设存在的难点问题,围绕教师队伍培训、教学内容优化、教学方法改革等方面提出建议,为推进环境工程专业课程思政建设提出思路和方法。

关键词：环境工程专业课程思政生态文明

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Research progress of siloxane removal from biogas

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International Journal of Agricultural and Biological Engineering 2017年第1期10卷 30-39页

作者： Gao Ruiling cheng shikun Li Zifu School of Energy and Environmental Engineering Beijing Key Laboratory of Resource-oriented Treatment of Industrial PollutantsUniversity of Science and Technology BeijingBeijing 100083China

Siloxanes in biogas are detrimental to engine,turbine,fuel cell,etc.,thus it is necessary to remove siloxanes from biogas before biogas high-value *** present,there are few domestic researches and related reports in view of siloxanes removal from *** paper introduces the property of siloxanes as well as sampling and analysis method,and then presents the research progress of siloxanes removal from *** commercial technologies overseas are adsorption,absorption and cryogenic *** them,adsorption on activated carbon is the most widely used *** technologies,such as biological removal,catalytic processes,membranes,source controlling,*** under exploration and *** last,this paper summarizes the advantages and disadvantages of siloxanes removal technologies as well as the applicability and analyzes the future research trend and *** paper could provide a reference in the field of biogas high-value utilization.

关键词： biogas purification siloxane removal activated carbon adsorption physical and chemical absorption biological removal

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Utilization of MSWI fly ash as partial cement or sand substitute with focus on cementing efficiency and health risk assessment

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Frontiers of Environmental Science & Engineering 2020年第1期14卷 87-97页

作者： Lei Zheng Xingbao Gao Wei Wang Zifu Li Lingling Zhang shikun cheng School of Energy and Environmental Engineering University of Science and Technology Beijing.Beijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China School of Environment Tsinghua UniversityBeijing 100084China

The strength of cement substituted mortar decreases with the increase in fly ash amount,whereas the strength increases when the fly ash is blended as sand substitute.A mortar with highest strength(compressive strength=30.2 Mpa;flexural strength=7.0 Mpa)was obtained when the sand replacement ratio was 0.75%.The k value(cementing efficiency)of fly ash varied between 0.36 and 0.15 for the fly ash fraction in binder between 5%and 25%.The k values of fly ash used for sand replacement were all significantly above that used for cement *** macropores assigned to the gaps between particles decreased when the fly ash was used as sand replacement,providing an explanation for the strength *** waste-extraction procedure(toxicity-sulphuric acid and nitric acid method(HJ/T 299-2007))was used to evaluate metal leaching,indicating the reuse possibility of fly ash blended *** the mortar with the mass ratio of fly ash to binder of 0.5%,the carcinogenic risks(CR)and non-carcinogenic hazard quotient(HQ)in sensitive scenario for blended mortar utilization were 9.66 x 10 and 0.06,respectively;these results were both lower than the threshold values,showing an acceptable health *** CR(9.89 x 105)and HQ(3.89)of the nonsensitive scenario for fly ash treatment exceeded the acceptable threshold values,indicating health risks to onsite *** main contributor to the carcinogenic and non-carcinogenic risk is Cr and Cd,*** CR and HQ from inhalation was the main route of heavy metal exposure.

关键词： MSWI fly ash Cementing efficiency Health risk assessment of heavy metal Sand replacement Cement replacement

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Assessment of two faecal sludge treatment plants in urban areas:Case study in Beijing

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International Journal of Agricultural and Biological Engineering 2017年第3期10卷 237-245页

作者： cheng shikun Zheng Lei Zhao Mingyue Bai Xue Li Zifu Heinz-Peter Mang Department of Environmental Engineering Beijing Key Laboratory of Resource-oriented Treatment of Industrial PollutantsUniversity of Science and Technology BeijingBeijing 100083China Beijing Municipal Environmental Monitoring Center Beijing 100048China

Every day,human beings produce excreta all over the world,and the sludge that accumulates in waste disposal systems is referred to as the‘faecal sludge(FS)’.FS can cause serious environmental pollution in urban areas if it cannot be disposed of properly.A complete FS management system must include onsite sanitation technologies,FS collection and transport,a treatment plant,and resource recovery or disposal of the treatment *** on the treatment and reuse/disposal step of a FS complete service chain,this research presents two cases of FS treatment in *** Case 1,FS biogas plant adopts anaerobic digestion(AD)to treat FS,and the digestate can be used as biofertilizer in the surrounding *** Case 2,several technologies including solid-liquid separation,dewatering,pyrolysis,AD and co-composting are integrated to find innovative solutions for FS treatment.A comprehensive assessment including the aspects of technology,economy and environment is conducted for further SWOT(Strengths,Weaknesses,Opportunities and Threats)***,critical strategies are developed,which include(1)selecting project site for optimized transportation,maximum waste reuse,minimum environmental impact and convenient final effluent disposal;(2)planning technical options at a feasible study stage,considering resource recovery,secondary pollution prevention and fire protection;(3)exploring market channels for by-products sale to increase profitability;(4)guaranteeing engineering quality and service life for the purpose of sustainable operation;(5)minimizing health risks to persons exposed to the untreated FS;and(6)providing necessary training for hygiene *** cases in Beijing can provide valuable lessons for urban areas in developing countries and the strategies can provide a reference for stakeholders and decision-makers who intend to develop FS treatment projects.

关键词： faecal sludge kitchen waste composting anaerobic digestion SWOT

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Online measurement of alkalinity in anaerobic co-digestion using linear regression method

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International Journal of Agricultural and Biological Engineering 2017年第1期10卷 176-183页

作者： Bai Xue Li Zifu Wang Xuemei He Xi cheng shikun Bai Xiaofeng Gao Ruiling School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants Beijing 100083China International Science and Technology Cooperation Base for Environmental and Energy Technology of MOST Beijing 100083China

Alkalinity is a reliable indicator of process stability in anaerobic digestion *** alkalinity(TA)and partial alkalinity(PA)are usually monitored offline as indicators for the status of anaerobic digestion *** order to online monitor TA and PA,the linear regression method was used as estimator to predict alkalinity via software sensor ***,namely,pH,oxidation and reduction potential(ORP),and electrical conductivity(EC),were used as input *** was the most significant parameter with TA and *** linear regression(MLR)models and simple linear regression models with EC were constructed to predict TA and PA in anaerobic co-digestion *** the basis of the evaluation of prediction accuracy,the applications of linear regression models were better for monitoring PA than *** models provided higher accuracy for alkalinity prediction than simple linear regression *** two MLR models based on single-phase anaerobic digestion system were also feasible to predict TA in anaerobic co-digestion ***,the accuracy of these models should be improved by calibrating for broad applications of linear regression method in online alkalinity measurement.

关键词： anaerobic digestion alkalinity online measurement model linear regression

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聚集性活动中应急厕所技术及适用情景分析

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环境工程学报 2022年第11期16卷 3845-3856页

作者：李卓蓉程世昆李子富李天昕北京科技大学能源与环境工程学院北京市工业典型污染物资源化处理重点实验室北京100083

我国聚集性活动的频度和规模越来越大,活动中应急厕所的大量使用已成常态。然而,不免存在厕所基础设施不完善、粪污处理措施不合适而导致的不安全、不卫生、不环保等问题。因此,聚集性活动中应急厕所技术受到了越来越多的关注。应急厕... 详细信息

我国聚集性活动的频度和规模越来越大,活动中应急厕所的大量使用已成常态。然而,不免存在厕所基础设施不完善、粪污处理措施不合适而导致的不安全、不卫生、不环保等问题。因此,聚集性活动中应急厕所技术受到了越来越多的关注。应急厕所设施和粪污处理方式的选择,一方面与环境条件的限制有关,另一方面与使用者的需求发展有关。归纳了聚集性活动中厕所系统粪污处理流程,提出了聚集性活动中应急厕所粪污处理典型模式,以及现有模式的缺陷和未来的发展方向,以期为聚集性活动中的厕所技术和系统模式选择及技术研发方向提供参考。

关键词：聚集性活动应急厕所粪便污泥粪污消毒粪污资源化

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我国公共厕所标准化研究

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环境工程 2023年第S1期41卷 612-617,620页

作者：李新颖程世昆李子富北京科技大学能源与环境工程学院北京市工业典型污染物资源化处理重点实验室北京100083

为规范厕所行业的健康快速发展,确保厕所相关标准的完善性,让厕所规划、设计、建设、管护、评价有标准可依,有必要制定整个厕所产业链的标准体系。对我国公共厕所的发展现状进行梳理,进一步研究了我国公共厕所相关标准的建设情况,从国... 详细信息

为规范厕所行业的健康快速发展,确保厕所相关标准的完善性,让厕所规划、设计、建设、管护、评价有标准可依,有必要制定整个厕所产业链的标准体系。对我国公共厕所的发展现状进行梳理,进一步研究了我国公共厕所相关标准的建设情况,从国家标准、行业标准、地方标准、团体标准和企业标准不同层面对我国的公共厕所标准进行整理总结分析,基于三维坐标法构建了我国公共厕所标准体系,并分析了公共厕所标准现存问题,提出了推进公共厕所标准化工作的对策与建议。

关键词：厕所革命公共厕所标准化标准体系

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负压排水真空便器冲水噪声的影响因素

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环境工程学报 2022年第4期16卷 1400-1406页

作者：韩彦召程世昆严巾堪王天聪闫政序李子富北京科技大学能源与环境工程学院北京100083 北京市工业典型污染物资源化处理重点实验室北京100083 山东中车华腾环保科技有限公司济南250022 中国中车污水处理与真空排水技术研发中心济南250022

真空便器噪声问题是影响负压排水用户使用体验的重要因素。通过改变真空便器系统的冲水量、气液比、真空度等工作参数,探究了各因素对真空便器产生噪声大小的影响,并据此提出了参数调整建议。结果表明:增加冲水量可降低真空便器的噪声,... 详细信息

真空便器噪声问题是影响负压排水用户使用体验的重要因素。通过改变真空便器系统的冲水量、气液比、真空度等工作参数,探究了各因素对真空便器产生噪声大小的影响,并据此提出了参数调整建议。结果表明:增加冲水量可降低真空便器的噪声,且冲水量的改变对真空坐便器噪声的影响更显著,冲水量增加1 L可使真空坐便器噪声最大值降低约5 dBA;真空便器噪声随气液比的增大而增大,气液比降低15可使真空便器噪声最大值降低约12 dBA;系统真空度越高,真空便器噪声越大,将系统真空度调低0.03 MPa,可使真空便器噪声最大值降低5~8 dBA;在相同条件下,真空坐便器噪声高于真空蹲便器。建立了便器噪声与冲水量、气液比和真空度的定量关系模型,得出系统真空度为-0.04 MPa、冲水量为1.7 L、气液比为2.5时噪声最小。此时,真空蹲便器噪声最大值降为79.8 dBA,真空坐便器噪声最大值降为81.9 dBA,噪声得到显著降低。本研究可为降低负压排水真空便器的冲水噪声、提升使用体验提供参考。

关键词：负压排水真空便器噪声气液比真空度

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高质量视角下工业化与空气质量、碳排放解析

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洁净煤技术 2023年第S2期29卷 815-828页

作者：李天昕高姗韩扬文徐水洋程世昆汪旭北京科技大学能源与环境工程学院北京100083 工业典型污染物资源化北京市重点实验室北京100083

随着工业化发展的加速,大气污染问题日益突出,严重影响高质量发展进程。因此,利用Pearson相关系数分析全国31个省份2003—2019年工业化、空气质量与碳排放间的相关度,用比值法量化高质量发展标准,并基于重心法空间探究三者之间的迁移轨... 详细信息

随着工业化发展的加速,大气污染问题日益突出,严重影响高质量发展进程。因此,利用Pearson相关系数分析全国31个省份2003—2019年工业化、空气质量与碳排放间的相关度,用比值法量化高质量发展标准,并基于重心法空间探究三者之间的迁移轨迹。结果表明:工业化与空气质量强负相关区域呈清洁发展,相关度可达0.994;工业化与碳排放强负相关区域呈节能发展,相关度可达0.932;空气质量与碳排放强正相关区域呈减污降碳协同发展,相关度可达0.989。经比值定量分析得高质量发展标准为:工业化≥122.61、空气质量≤5.76、碳排放≤154.94。由空间变迁规律可知,工业化与空气质量在同步由西北向东南迁移,而碳排放的迁移轨迹恰好相反,说明低质量的工业化才是带来高排放的主要原因。

关键词：工业化水平空气质量水平碳排放水平 Pearson相关系数重心法

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