Results 101 to 110 of about 78,527 (268)
Jingshui jishu【目的】为解决地下水中钙离子(Ca2+)、铁离子(Fe2+)、锰离子(Mn2+)复合污染问题，探究诱导结晶工艺对此类离子的协同去除效能与机制。【方法】本文采用流化床结晶工艺开展中试试验，系统考察了氢氧化钠(NaOH)投加量、晶种投加量、上升负荷及连续运行对处理效果的影响，并利用扫描电镜(SEM)与X射线衍射(XRD)对结晶产物进行表征。【结果】NaOH投加量为160 mg/L,诱导晶种投加量为176 g/L,出水总硬度降低至120.82 mg/L,Ca2+、Fe2+、Mn2 ...
Cui Hongjun +5 more
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International Journal of Urban and Regional Research, EarlyView.Abstract This article outlines possibilities for counter configurations of data‐based urbanisms, whereby data practices, rather than reproducing logics of urban entrepreneurialism and smart‐city governance, are made from within urban peripheral territories.
Andrés Luque‐Ayala, Rodrigo Firmino
wiley +1 more source
Jingshui jishu【目的】本文旨在设计阶段初步明晰选址方案、工艺路线及排放标准等对污水处理厂在运营期间碳排放量的影响。【方法】文章以设计参数为依据，计算并对比不同规划方案(方案1与方案2)下污水处理厂的碳排放量差异，旨在为污水处理厂建设过程中合理布局、采用绿色低碳工艺路线提供参考。【结果】碳排放核算边界包括规划污水处理厂及规划配套污泥处理设施，通过计算直接碳排放、间接碳排放及碳补偿量，得出2种方案的碳排放强度分别为0.563 kg CO2-eq/m3和0.550 kg CO2-eq/m3 ...
Ji Shasha, Dai Dongchao, Chen Zewei
doaj +1 more source
Sewerage works: public investment in sewers saves lives [PDF]
, 2008 Without sewers, more children die, and those who survive suffer in terms of physical growth and educational attainment. Donor policies and advice on sewers are wrong in three key respects. Sewers in cities are not optional extras but essential.
Hall, David, Lobina, Emanuele
core
Accounting Rules and the Labor Market for Accountants
Journal of Accounting Research, EarlyView.ABSTRACT In this study, I explore how accounting rules—in particular the restrictiveness of GAAP—have impacted the labor market for accountants. I find that when the rules become more restrictive, there are fewer students majoring in accounting and fewer accountants and auditors overall. The overall number of accounting positions that firms recruit for
ANTHONY LE
wiley +1 more source
Jingshui jishu【目的】污水处理厂减污降碳协同控制是水务系统双碳转型的必然要求。为基于“双碳”目标的污水处理厂建设与技术改造项目的技术比选提供决策支持，本文开展了以减污降碳协同控制为目标的技术评估方法研究。【方法】本文基于GPS-X软件构建污水处理厂不同工艺模型，并应用实际运行数据对模型进行率定；采用协同控制坐标系-交叉弹性值(E a/G )法、层次分析法(AHP)-等权重法构建了定性与定量相结合的协同控制技术综合评估方法及模型，评估了6项协同控制措施的协同控制效果。【结果】精确曝气技术 ...
Liu Xuejie +5 more
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Dutch dilemma: Housing prices and flood risk exposure
Real Estate Economics, EarlyView.Abstract This article studies the impact of flood risk exposure on housing prices in a major river delta. Analyzing 1.8 million property transactions from 1998 to 2023 in the Netherlands, we find an average price discount of 1.1%. We observe considerable heterogeneity in price effects driven by exposure intensity, institutional settings that vary ...
Piet Eichholtz +2 more
wiley +1 more source
Jingshui jishu【目的】本文针对东南沿海城市人工湖在全球气候变化与极端天气频发背景下面临的内涝风险高、水质波动大、生态功能弱化等多重挑战，提出并实践了城市人工湖全链条智慧化管控框架，以期提升湖体水系统的安全韧性与生态服务功能。【方法】本文基于东南沿海城市水体智慧化管控技术研究进展及实践成果，提出了构建人工湖“天-空-地”立体监测网络、多模型耦合预警机制及动态优化调度系统的全链条智慧化管控框架。【结果】以福建省福州市晋安湖为实证案例，在人工湖智慧化管控系统应用后 ...
Huang Zhiqiang +5 more
doaj +1 more source
The state of sewage system economics in rural areas in Poland [PDF]
, 2009 Infrastructure is the basis of economic activities both in urban and in rural areas. It is also one of main conditions for improving quality of life. Among its most important elements are: water delivery system, as well as sewage treatment network and
Gładysz, Ryszard
core
Addiction, EarlyView.Abstract Aim To monitor community‐level consumption of 20 illicit drugs across urban areas of England using wastewater‐based epidemiology (WBE) surveillance at high temporal resolution. Design, setting, cases This study was conducted over a 12‐month period in 2022 sampling 24‐hour composite wastewater samples at 15 wastewater treatment plants (WWTPs ...
Helena Rapp‐Wright +14 more
wiley +1 more source