Results 11 to 20 of about 873,462 (161)
, 2001 本文在确定流域洗涤剂的磷在水体磷负荷中所占的比重及贡献率的基础上 ,采用Thomoamn数学模型 ,对在实施洗涤剂禁限磷措施后 ,流域水质的响应进行预测 ,并评估洗涤剂禁限磷的环境效果 .水质预测结果表明 ,实行限、禁磷措施后 ,供水水质磷含量将从目前的 0 .2 4mg/L降至 0 .18mg/L ,磷负荷削减了 2 5 % ;如严格控制流域禽畜散养 ,削减非点源磷盐 6 0 % ,供水水质处于地面水Ⅱ类水质 (0 .1mg/L ...
杨扬,熊丽,刘明清,韩静磊,陈铣成,吴振斌,成水平
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of highly efficient and stable nonprecious metal electrocatalysts for the acidic oxygen evolution reaction (OER) is crucial to advance proton exchange membrane (PEM) water electrolysis. In this work, a dual synergistic strategy was proposed by constructing a Ce‐modified MnO2/MnO heterostructure.
Chuanbin Li +7 more
wiley +1 more source
Gongye shui chuli, 2004 目前市场上的复合型水质稳定剂价格普遍较高,对于装机容量小于100MW的火电厂来说,在选择水质稳定剂上,因投资较大,故选择非常慎重,不敢大胆购买。作者通过数学模型和实验数据,对使用水质稳定剂的经济效益进行了比较分析,从而论证了“产出大于投入”的观点。
黄运涛, 陈宏涛
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Efficient and durable bifunctional electrocatalysts are vital for scalable water electrolysis. Here, we realize cobalt‐vacancy (Covac) engineering in CoFeP supported on N,P‐codoped carbon nanocages (Co1‐vacFeP/NPC) through a simple route comprising a CoFe Prussian blue analog precursor, phosphidation–pyrolysis, tannic‐acid etching, and a ...
Yuan‐Liang Yuan +6 more
wiley +1 more source
Gongye shui chuli, 1985 在水质稳定试验中,旋转挂片法是筛选评价水质稳定剂比较适用的方法。试验过程中,由于腐蚀产物和水垢颗粒不断增加,某些药剂还会发生水解反应 ...
张益民
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
Gongye shui chuli, 2019 脱硫废水中残留的水质稳定剂是影响其回用的重要因素。选用ClO2为氧化剂，PAC为絮凝剂，以TP、OP去除率为指标，研究了二氧化氯投加量、PAC投加量、氧化时间、pH和温度对水中两种常见水质稳定剂（PBTCA、HEDP）去除效果的影响。结果表明，当二氧化氯投加量为9 mg/L，PAC投加量为180 mg/L，pH为7.5，温度为40℃，氧化时间为1 h时，水质稳定剂的去除效果最佳；PBTCA比HEDP更易被二氧化氯氧化降解。
霍立敬 +3 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu +2 more
wiley +1 more source
Gongye shui chuli, 1990 本文介绍循环冷却水水质稳定剂HPDP 的合成实验结果及其性能评定。结果表明:（1）HPDP对Ca2+具有很高的容忍度;（2）HPDP 能与其它水质稳定剂较好地复配使用;（3）静态下对Zn2+有较好的分散能力。
蔡军, 张抗美
doaj
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang +6 more
wiley +1 more source