Results 101 to 110 of about 78,097 (269)
Animal Conservation, EarlyView.A diagram of the integrated species distribution model of river otter intensity of use. Three types of data (latrine detections, roadkill detections, and detection/nondetection surveys) are linked by different observation processes to the same underlying intensity of use.
John G. Crockett +2 more
wiley +1 more source
Jingshui jishu【目的】水热碳化是一种新型的污泥减量化和相关产品增值技术，催化剂对提高污泥水热碳化反应速率和处理效果具有重要意义。【方法】分析污泥泥性和组成，以硫酸和草酸作为催化剂，研究催化剂质量分数为1%、2%、3%和4%对污泥水热碳化处理效果，污泥水热碳化产生滤液和生物炭，分别分析滤液的pH、体积及水质参数，生物炭的热力参数、元素组成、重金属等参数变化，并采用扫描电子显微镜(SEM)扫描仪、Brunauer-Emmett-Teller(BET)比表面积及孔径分析仪和热重-差示扫描量热联用(TG-
Gao Weimin +4 more
doaj +1 more source
Environmental Law, Governance, and Management- the Need for Environmental Management Systems for Cities [PDF]
, 2012 Human activities damage the environment. They deplete natural resources, generate pollution and wastes, accelerate the loss of forests and biological diversity, as well as threaten the water supply. As populations increase, these problems are exacerbated.
Lin Heng, Lye
core +1 more source
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】目前我国在农村生活污水治理工作方面已经取得了很大的提高与成效，但也不可避免存在许多问题，其中我国农村大量建成的单一厌氧池普遍存在氨氮去除率低的问题。【方法】对此，本文以增城区某农污站点为试点，将厌氧池改造为厌氧-好氧(AO)工艺并进行处理效果及经济分析。【结果】改造后出水氨氮的平均去除率由13.64%的提高至67.00%;化学需氧量(COD)平均去除率由63.14%提高至82.28%;悬浮物(SS)平均去除率由60.69%提升至76.15%;总磷及总氮去除率也分别达到了93.
Chen Zhihua +4 more
doaj +1 more source
Success of restoration strategies in preventing extirpation of 2 critically endangered coral species
Conservation Biology, EarlyView.Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller +29 more
wiley +1 more source
Jingshui jishu【目的】在平原河网地区，城市生活污水处理厂进水负荷高、进水浓度低的现象普遍存在。【方法】为精准识别与定位污水管网入流入渗问题，本文以长江中下游典型平原河网城市的某一污水系统为例，将污水分区作为研究单元开展应用研究，充分挖掘自来水售水数据价值，构建基于售水数据空间解析的“分区供排水平衡分析-空间水质分析-溯源排查”三级递进式污水管网入流入渗问题诊断技术体系。【结果】污水处理厂片区整体污清比为1.51,除Z泵站片区外，其余各污水分区的污清比均超过1.50,外水过多 ...
Zhu Chunwei +6 more
doaj +1 more source
Public health reforms and the mortality decline in nineteenth‐century Italy
The Economic History Review, EarlyView.Abstract This study examines the impact of Italy's 1887–8 health reforms on mortality, contributing to the historical debate on the state's role in Europe's health transition. Leveraging event‐study‐style difference‐in‐differences approach, we assess the effectiveness of the Crispi–Pagliani reforms, which strengthened public health governance and ...
Francesco Maria Salvatore Fiore Melacrinis +1 more
wiley +1 more source
Jingshui jishu【目的】随着我国“30·60”“双碳”目标的推进，低碳、零碳及负碳技术不断涌现，准确评估这些新兴技术的发展前景并优化其发展路径则显得至关重要。前瞻性全生命周期评价(LCA)已被证实能有效评估新兴技术并指导其早期开发，可以被用于水处理领域新兴技术的评估与分析。【方法】本文对前瞻性LCA在水处理领域的现有案例进行选取梳理，主要分析了前瞻性LCA的建模过程，包括功能单位、系统边界、前景和背景数据的建立以及数据的不确定性与敏感性分析。【结果 ...
Zou Maojun, Yang Xuejing, Zhang Jinyang
doaj +1 more source
Guide to on-site wastewater management for industrial and commercial establishments and other institutions: guide for vehicle service station owners and managers [PDF]
Wastewater treatmentEnvironmental ...
Burmeister, J. +2 more
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