Results 1 to 10 of about 16,052 (96)

考虑环境效益的政府补贴对再生水回用的影响

open access: yesGongye shui chuli, 2021
针对再生水生产和回用动力不足问题,将再生水回用的环境效益考虑在内,分别建立政府直接补贴再生水企业、政府直接补贴再生水用户的两阶段动态博弈模型,比较分析了不同补贴政策对再生水价格和市场需求量的影响。结果表明,两种补贴方式下,补贴力度均与市场需求量、企业收益呈正相关;而补贴力度与价格在政府补贴再生水用户时呈正相关,在政府补贴企业时呈负相关;2种补贴方式得到的社会总效益一致,但是补贴再生水用户时会给政府带来更大的财政压力。研究结论为再生水行业市场化运作初期的政府政策出台和企业管理决策制定提供参考。
高旭阔, 郭静, 刘奇
doaj   +2 more sources

我国城镇污水再生利用技术研究进展

open access: yesGongye shui chuli, 2021
我国水资源供需矛盾突出,城镇污水再生回用是解决水资源短缺的有效途径。近年来,污水再生与利用技术发展迅速,实践应用逐步成熟。再生利用城镇污水逐步被广泛接受并应用于不同部门。全面综述了国内城镇污水再生利用的发展过程,系统梳理了主要水处理技术的工艺特点,对比分析了不同工艺的效果、应用和成本,以期为我国污水再生回用的进一步发展和应用提供参考。
符家瑞   +5 more
doaj   +2 more sources

再生水厂曝气生物滤池工艺改进

open access: yesGongye shui chuli, 2008
再生水厂利用城市污水处理厂二级出水作为再生水的水源,采用二级曝气生物滤池+纤维球过滤工艺对污水处理厂二级出水进行处理,处理后出水作为再生水进行回用。由于来水水质的制约,严重影响了再生水厂的中水再生能力,通过改变再生水厂来水水源,将二级曝气生物滤池串联运行改为并联运行,提高了再生水厂的处理能力,降低再生水成本。
雷兆武, 刘茉
doaj   +2 more sources

软化器的节水

open access: yesGongye shui chuli, 1992
软化器是工厂企业主要耗水设备之一,为了做好软化器的节水工作,建议采取下述几项措施。1 将软化器顺流再生改为逆流再生有许多工厂企业目前使用的仍是顺流运行顺流再生软化器。如果将现有的顺流再生软化器改为逆流再生,可以节约软化器再生时的耗水量。软化器改为逆流再生后,可以免去大反洗过程,而以加再生液代替反洗。由于逆流再生的再生剂利用率高,废液量小,浓度低,正洗时间缩短,再生耗水量比顺流再生时可降低50%。直径1米的软化器再生一次可节水30米3。加之由于逆流再生工作周期延长。再生次数减少,节水量相当可观。
魏淑春, 赵连璞
doaj   +2 more sources

再生水灌溉对草坪土壤速效养分及盐碱化的效应

open access: yesShuitu Baochi Xuebao, 2006
采用7种水分处理:清水适宜灌(FPI)、混合适宜灌(RFPI)、再生水充分灌(RFI)、再生水适宜灌(RPI)、再生水轻微干旱胁迫(RLWS)、再生水中度干旱胁迫(RMWS)、再生水重度干旱胁迫(RSWS),相应灌溉下限分别为田间持水量70%,70%,80%,70%.60%,50%,40%,灌水定额相同。研究结果表明:与清水灌溉相比,短期内采用再生水灌溉不会使大量氮紊残留于土壤,不会快速提高土壤供磷水平,土壤速效钾含量增加不显著,土壤阳离子含量增加也不显著。再生水灌溉不同水分处理下 ...
彭致功, 杨培岭, 王勇, 任树梅
doaj   +2 more sources

Transitioning From L1 Medium of Instruction to L2 English Medium Instruction: The Role of Translanguaging in Contributing to EFL Students’ Language Learning Motivation

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Research on English‐Medium‐Instruction (EMI) highlights inadequate support for students transitioning from L1‐medium‐instruction to EMI. To date, little research has focused on how L2 students’ adaptation to an EMI environment influences their L2 learning motivation (LLM).
Kevin W. H. Tai
wiley   +1 more source

Decarbonization and the Rescaling of Water–Energy Bargaining: How Renewable Expansion Is Reshaping Iran–Iraq–Türkiye Transboundary Water Politics

open access: yesWorld Water Policy, Volume 12, Issue 4, November 2026.
ABSTRACT This article examines how renewable‐energy expansion is changing water–energy bargaining among Iran, Iraq, and Türkiye in the Tigris–Euphrates basin. Much of the existing literature on transboundary water politics focuses on territorial control, upstream–downstream power asymmetries, legal rules, and hydro‐hegemony but gives less attention to ...
Umud Shokri
wiley   +1 more source

利用市政再生水降低钢铁企业新水消耗

open access: yesGongye shui chuli, 2013
宁波钢铁有限公司引进市政再生水作为工业用水, 分析了该再生水的水质特点和使用情况, 对再生水用于敞开式循环冷却水系统的运行效果进行了评价, 并提出了使用市政再生水需要注意的几个问题:包括再生水质量及稳定性、优化循环冷却水处理技术方案、企业内用水管网的检测和维护以及保留外部事故水源等。
邓平
doaj   +2 more sources

Residents' Knowledge and Protection Willingness of Otters in a Megacity in China 中国特大城市居民对水獭的认知程度及保护意愿

open access: yesIntegrative Conservation, Volume 5, Issue 3, Page 306-316, September 2026.
ABSTRACT In today's rapidly urbanizing world, the survival of wildlife in cities faces significant challenges, and the attitudes of urban residents toward wildlife play a crucial role in their survival. Otters, as top predators in freshwater ecosystems who are highly sensitive to environmental changes, had once gone extinct in Shenzhen—a megacity ...
Changning Liu   +5 more
wiley   +1 more source

Rapid Removal of Binder From Spent Lithium‐Ion Batteries by Microwave Radiation for Enhanced Flotation Separation of Anode and Cathode Materials

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye   +5 more
wiley   +1 more source

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