Results 41 to 50 of about 7,628 (255)
Jingshui jishu【目的】混合是混凝过程的关键环节，会显著影响混凝效果。静态管道混合器是重要的混合设施，具有种类多、混合方式不同、型式各异等特点，且混合效率与结构参数密切相关。但静态管道混合器的结构及其优化仍缺少有效的表征方法与评价手段。本文旨在建立一种静态管道混合器结构参数与混合效率的协同优化方法，为水处理混凝工艺中混合器的设计与性能优化提供理论依据。【方法】本文构建了DN200型多级耦合静态管道混合器三维模型，采用计算流体动力学(CFD)方法分析了药液体积分数分布与流场变化规律 ...
Zhao Jiaheng +3 more
doaj +1 more source
, 2018 Cover title.; "January 2018."; Previously published ...
Connecticut. Department of Public Health,
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Nitrogen leaching from effluent irrigated pasture [PDF]
, 2011 The surface waters of the Taupo region are of high quality and are sensitive to inputs of nitrogen. To reduce the amount of nitrogen discharged to surface water, the Taupo District Council (TDC) has employed a land treatment scheme (LTS), where treated ...
Treweek, Glen
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Orchestrating Green Transformation: How AI Adoption Enables Corporate Carbon Neutrality
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT As carbon neutrality has become a central goal of global climate governance, how firms achieve low‐carbon transformation has emerged as a critical research issue. However, prior studies have primarily focused on macro‐ or industry‐level analyses, offering limited and fragmented insights into how digital technologies—particularly AI—affect firm‐
Xiaonan Dong, Sungjin Son
wiley +1 more source
Jingshui jishu【目的】《生活饮用水卫生标准》(GB 5749—2022)将2种嗅味物质，例如2-甲基异莰醇(2-MIB)和土臭素(GSM)列为强制性的水质扩展指标。藻类暴发可能引起原水中2-MIB和GSM浓度急剧上升。然而，饮用水处理常规处理工艺(混凝-沉淀-过滤-消毒)对2-MIB和GSM去除效果有限。【方法】在宁波市某水库现状原水水质条件下，本文对比了臭氧钛板与臭氧陶瓷膜板曝气方式的气液传质效率；进而比较不同方式下典型嗅味物质的去除效能，并探究臭氧投加量对嗅味物质去除效能的影响 ...
Zhou Zhengxie +5 more
doaj +1 more source
Aerobic digestion of sewage sludge for waste treatment
, 2017 Although Saudi Arabia is producing high gross national income per year in the Jeddah city, the sewage treatment and disposal systems does not meet the needs of people sufficiently.
Kabli, Mohammed +7 more
core +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Firms are experiencing mounting pressure to report their environmental impact. Rather than disclosing their actual performance, however, some are engaging in unethical business (i.e., greenwashing) practices. Prior studies have contributed significantly to the greenwashing literature from varied perspectives, but a comprehensive understanding ...
Sher Jahan Khan +4 more
wiley +1 more source
Jingshui jishu【目的】锑(Sb)是一种具有环境毒性的典型重金属污染物，在水环境中主要以三价Sb[Sb(Ⅲ)]和五价Sb[Sb(Ⅴ)]这2种氧化形态存在，两者在毒性、生物可利用性及迁移转化行为方面存在显著差异。随着工业活动的不断加强，Sb污染问题日益突出，准确识别并测定水体中Sb的价态对评估其生态风险、制定有效的污染控制和修复措施具有重要意义。本文旨在系统梳理和总结当前水体中Sb价态测量技术的研究进展，为Sb污染的环境监测与治理提供理论支撑与技术参考。【方法】本文通过系统梳理相关研究文献 ...
Li Mei +4 more
doaj +1 more source
Performance evaluation of onsite sewage treatment : Evaluation of current research [PDF]
, 1999 Efficient management of domestic wastewater is a primary requirement for human well being. Failure to adequately address issues of wastewater collection, treatment and disposal can lead to adverse public health and environmental impacts.
Goonetilleke, Ashantha +2 more
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Deep Underground Science and Engineering, EarlyView.This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source