Results 1 to 10 of about 15,654 (96)
Gongye shui chuli, 2022 石化废水组分复杂、可生化性差、毒性强、危害大，是典型的难生物降解有机工业废水。传统生物工艺由于石化废水中油类、高盐、高COD对微生物的活性抑制作用，很难实现对该废水的高效处理以及达标排放。针对石化废水处理技术的难点，评述了石化废水常规生物处理方法存在的弊端；详述了好氧颗粒污泥（AGS）技术的特点、系统启动期污泥颗粒化的策略，以及该工艺在石化废水处理中发挥的作用和技术优化手段；进一步阐述了好氧颗粒污泥对石化废水中特征污染物的去除效能，并解析了好氧颗粒污泥中的功能微生物群落结构特点 ...
张楠 +4 more
doaj +2 more sources
Gongye shui chuli, 2021 就一种废液中溶解性难生物降解化学需氧量的测定评价方法进行介绍。参考生物膜法中接触氧化法的挂膜废水处理方式，搭建小型循环系统。采用基于生物膜法的动态循环法对溶解性难生物降解化学需氧量进行测定并评价其降解特性。通过对装置的循环流速调节、接种挂膜培养、驯化、清洗、测试，并经不同实验室验证，校核参比样品降解率达96%以上，平行试验测定绝对差值与算术平均值之比为1.01%、1.33%。试验验证结果表明，采用该方法测定废液中的溶解性难生物降解化学需氧量是可行的。该方法适于废液中溶解性难生物降解化学需氧量的评价 ...
彭义华 +6 more
doaj +2 more sources
Gongye shui chuli, 2022 随着工业规模的扩张，难降解废水的类型和排放总量逐年递增，产生的废水具有较高生物毒性，寻求高效能的难降解废水处理技术成为研究趋势。利用自由基的高氧化能力直接矿化污染物或通过改变分子结构提高污染物的可生化性，是当前处理难降解废水的主流思路和有效途径。过硫酸盐氧化是一种新兴的难降解废水高效处理技术，活化后会产生以·OH和SO4•-为主的多种活性自由基。其具有较强的氧化性能，在多种难降解废水处理实验中得到验证。综述了过硫酸盐氧化技术处理垃圾渗滤液、印染废水、化工废水、含新兴污染物废水等难降解废水的最新研究进展 ...
王庆宏 +5 more
doaj +2 more sources
Gongye shui chuli, 2004 通过试验探讨了二步法腈纶废水进行好氧活性污泥生化处理及各种强化措施的性能,研究表明单纯的活性污泥法难以实现腈纶废水达标排放,Fenton试剂与O3氧化及厌氧酸化作为好氧生化前处理手段对于提高腈纶废水可生化性作用较小,富营养物添加及生活污水共基质条件也不能增强生化处理时难降解COD部分的去除率,腈纶生化处理后废水有必要增加物理化学方法实现达标外排。
赵朝成 +3 more
doaj +2 more sources
Wildlife Letters, EarlyView.Migratory shorebirds traveling the East Asian–Australasian Flyway face systemic policy fragmentation and habitat disconnection between China (coordination challenges and renewable energy conflicts) and Australia (federal governance fragmentation). This study proposes a transboundary conservation framework to fill this gap.
Yarui Wang
wiley +1 more source
Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study examines multilingual practices in research interviews, focusing on English lexical insertions in Chinese‐language research interviews with teachers of Chinese in Australian secondary schools, and treating these code‐switches as analytically meaningful rather than incidental.
Chengwen Yuan, Tianwei Zhang, Gary Bonar
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT In MAX‐phase‐derived metal–matrix composites, the M‐site element simultaneously governs carbide chemistry and matrix precipitate stability, yet it has traditionally been selected empirically rather than from a predictive criterion linking M‐site choice to carbide chemistry, matrix alloying, and L12 stability; moreover, the reaction pathway ...
Wei Yang +8 more
wiley +1 more source
Gongye shui chuli, 2007 印染废水水质变化大、色度高,直接生物处理难度大,单一生化处理工艺难以达到排放要求。采用铁屑内电解—生化工艺对浙江某印染厂废水处理系统进行改进,内电解预处理大大提高了废水的可生化性,最终生化段出水CODCr去除率达到90%,色度去除率达到95%以上。铁屑内电解—生化工艺具有处理效果好、出水水质稳定、设备简单、操作管理方便、能耗低等特点,是处理印染废水的有效方法之一。
程春民
doaj +2 more sources
Gongye shui chuli, 2010 印染废水由于含有大量难生物降解有机物,且色度极高,单独的生物法难以对其有效处理。综述了近几年来国内外采用吸附、混凝、膜分离等物理方法和光氧化、电氧化、湿式氧化、Fenton氧化、微波诱导、超声催化氧化等化学氧化技术处理印染废水的进展情况和优缺点,并指出物化法与生物法相耦合将是处理印染废水经济有效的工艺。
王绍温, 陈胜, 孙德智
doaj +2 more sources