Results 21 to 30 of about 76,689 (134)
Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
水环境面源污染的严重性已受到国内外普遍关注,面源污染业已成为国际上水环境问题研究的活跃领域。从农业面源污染的发生机理和农业面源污染的特点出发,通过分析农业面源污染与水体环境之间的关系,探讨了农业面源污染对水环境的影响。对于面源污染的控制,最佳管理措施(BMPs)现已得到广泛应用。其中,人工湿地、前置库、缓冲带、水陆交错带、水土保持和农业生态工程等是目前研究和应用较多的农业面源污染控制技术。
柴世伟 +4 more
doaj +2 more sources
The Johnstone's whistling frog is an invasive species whose loud night‐time calls may affect human health and well‐being. Our study in Cali, Colombia, combined fieldwork and online surveys to assess its urban occupancy, density, and potential health impacts.
Rubén Darío Palacio, Sumana Goli
wiley +1 more source
大量的新兴污染物(ECs)随污水排放入自然环境中,对水生生物和水质安全造成了潜在的威胁。污水中新兴污染物的识别,是研究污染物迁移转化过程、毒性效应的前提。基于色谱-高分辨率质谱的非靶向筛查技术能够实现复杂水环境中新兴污染物的高通量测定。综述了现有非靶向筛查技术在识别污水中的新兴污染物的研究进展,主要包括样品的预处理方法,色谱-高分辨率质谱仪器测定方法与数据处理的过程及参数优化,非靶向识别新兴污染物的应用进展和发展趋势等,可为污水中新兴污染物的识别提供方法学参考。
钱玉立 +5 more
doaj
ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
wiley +1 more source
随着超滤技术在水处理领域中的应用越来越广泛,超滤膜污染已成为现阶段迫切需要解决的问题。结合国内外有关超滤膜污染的最新研究进展,总结了引起超滤膜污染的物质,阐述了膜的性质、操作条件与膜污染之间的关系,归纳了超滤膜的污染机理以及引起污染的原因,并指出今后超滤膜污染的研究方向。
李海鹏 +5 more
doaj
为研究以印染废水为主的城镇污水处理厂锑污染来源特征,对浙江省嘉善县某污水处理厂及纳管行业进行水体锑(Sb)的采样分析,同时对印染和喷水纺织两大行业的锑污染源进行分析.研究表明,在污水处理厂纳管废水中,印染行业废水占纳管总量的55.2%,排锑量占总量的79.3%,是该污水处理厂锑污染的主要来源;在印染生产过程中,布料中锑的平均流失量为7 mg · kg-1,平均损失率为13%,污染物锑在退浆、水洗和染色工艺段中的释放量依次为:染色>退浆>水洗;喷水纺织织造工艺中锑的释放量较少,布料中锑的平均流失量为2.2
LIWei(李威) +6 more
doaj +1 more source
ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li +5 more
wiley +1 more source
通过不同清洗方法对膜通量恢复效果的评价以及对污染膜和各步清洗后对膜表面和断面形貌的观察,对膜生物反应器工艺中的膜污染特征和膜污染进行了研究。结果表明,清水冲洗能消除纤维膜之间淤积的污泥和膜表面松散的污染层,次氯酸钠可以清除膜表面的微生物和有机污染物,而硫酸和柠檬酸能清除膜上的无机物垢。在膜外表面的污染物主要为生物膜和凝胶层污染,而膜内表面的污染物主要为滋生的微生物和无机污染物。对应各步清洗后膜通量的恢复,可以推出,在试验的工艺条件下,无机物污染对膜过滤阻力的影响较大。在此基础上 ...
刘晓东 +3 more
doaj
ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
wiley +1 more source

