Results 111 to 120 of about 78,527 (268)
Jingshui jishu【目的】为适应新时期污水治理需求，以及推进区域水务一体化的发展，污水治理急需以数智化为基础，建设可持续发展的水务智慧化管理体系。实现从源头到末端的全流程精细化管控，推动污水治理体系向高效协同、主动防控、智慧决策的方向发展，进而为城市水环境持续改善与水务行业现代化提供坚实基础。【方法】本文以福州市为研究对象，构建覆盖排水系统全产业链的数智化污水提质增效“1346”治理体系。该体系以排水管网地理信息系统(GIS)数字底座为基础，整合液位、水质、污水量、用水量4类核心数据，形成多维度 ...
Lai Maoshun +5 more
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Sand Bioreactors for Wastewater Treatment for Ohio Communities [PDF]
, 1999 PDF pages ...
Mancl, Karen M., Rector, Don
core
Archaeometry, EarlyView.ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay +3 more
wiley +1 more source
Jingshui jishu【目的】针对环境学科本研贯通教学中内容重复、衔接断层、前沿缺席等结构性痛点，以及传统课程体系以单门课程为单位、缺乏整体结构设计的问题，本文提出一条基于知识图谱的课程体系优化路径，以实现课程整合、衔接增强与前沿嵌入，为拔尖创新人才培养提供结构化的课程组织支撑。【方法】首先，本文开展知识点抽取与结构化表达，以课程大纲、教材与课件等教学文本为数据源，在统一粒度与术语的前提下形成标准化课程知识元；其次，构建教学认知图谱并执行课程关联分析与冗余诊断，基于知识点相似度 ...
Lu Jian, Xu Bin, Zhang Tianyang
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Trust Matters: Examining the Dynamics of Management's Trust in Employee Representation
British Journal of Industrial Relations, EarlyView.ABSTRACT While trust's relevance in employment relations has been recognised by scholars, empirical studies on management's trust in employee representation are notably scarce. The paper addresses this gap, contributing to a more comprehensive understanding of the dynamics that shape effective dialogue in the employment relationship.
Argyro Avgoustaki +2 more
wiley +1 more source
Jingshui jishu【目的】本文针对活性污泥2d号模型(ASM2d)参数众多、不确定性高的问题，开展参数敏感性分析，以识别关键参数、降低模型校准复杂度，为工艺模拟、校准与优化提供依据。【方法】本文以某污水厂厌氧-缺氧-好氧(AAO)工艺为对象，构建生物段处理工艺ASM2d模型，采用蒙特卡洛模拟结合拉丁超立方抽样，对筛选的39个模型参数进行全局敏感性分析，研究了不同模拟次数(78～210组)对分析结果的影响，并通过标准化回归系数量化参数对各出水指标的影响程度。【结果】当模拟次数达到156组以上时 ...
Zhu Jialu, Ma Yan
doaj +1 more source
Defining the geographical level of competition: a taxonomy of industry tradability
Economica, EarlyView.Abstract The paper develops a taxonomy of industry tradability to define the geographical level at which competition takes place. First, it creates a novel dataset that combines production and international trade data for both goods and services industries, defined at a detailed (3‐digit) level of industry aggregation for 15 European countries.
Sara Calligaris +4 more
wiley +1 more source
Jingshui jishu【目的】文章旨在系统分析光伏企业废水排入园区废水厂后引发的运行问题及其影响机理，为优化处理工艺提供依据。【方法】以某工业园区废水厂(规模为1万m 3 /d,主要采用“水解酸化+厌氧-缺氧-好氧(AAO)+膜生物反应器(MBR)”组合处理工艺)为案例，分阶段监测调试期与稳定运行期的水质水量参数，包括化学需氧量(COD)、总氮(TN)、氨氮、总磷(TP)、盐分、钙离子(Ca 2+ )、硅离子(Si 4+ )、氟离子(F - )及悬浮物质(SS)等指标，并结合膜污染电镜扫描 ...
QIANG Jinfeng +4 more
doaj +1 more source
Energy recovery from solid waste. Volume 2: Technical report [PDF]
A systems analysis of energy recovery from solid waste demonstrates the feasibility of several current processes for converting solid waste to an energy form.
Dalton, C., Huang, C. J.
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Practical measures for reducing phosphorus and faecal microbial loads from onsite wastewater treatment system discharges to the environment:a review [PDF]
, 2015 Onsite wastewater treatment systems (OWTS), the majority of which are septic tanks, are a contributing factor to phosphorus and faecal microbial loads. OWTS contribute to waterbodies failing to meet Water Framework Directive (WFD) objectives and as such,
Akunna, Joseph +5 more
core +1 more source