Results 1 to 10 of about 5,083 (79)
Highlights Diabetic kidney disease is a progressive disease with the pathology of glomerular damage and loss of podocytes. Sodium glucose cotransporter 2 inhibitors (SGLT2i) can be expected to decrease the amount of podocyte excretion. Male patients receiving SGLT2i have better diabetic kidney disease‐related parameters and podocyturia levels. Abstract
Emre Durcan +13 more
wiley +1 more source
以内蒙古某煤化工企业反渗浓水为对象进行电渗析(ED)浓缩中试试验。试验结果表明,ED能对反渗透浓水溶解性总固体(TDS)实现高倍浓缩,浓缩倍数一般为7~8。而对有机物浓缩倍数不高,一般为TDS浓缩倍数的一半,同时也不浓缩硅,因此ED装置具有较强的抗污能力。研究发现,离子种类不同,对应的ED膜通量不同,Na+的离子通量最高,主要集中在6.0~7.2 mol/(m2·h),SO42-的离子通量最低,主要集中在1.0~1.3 mol/(m2·h);Cl-的离子通量为5.0 mol/(m2·h)左右,是SO42-
黄海波
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通过对晶体生长过程的分析与实验验证,提出了蒸发浓缩法评定阻垢剂性能时浓缩终点的判断指标:即随着浓缩过程的进行,以总碱度计浓缩倍数停止升高或下降,就认为已达到浓缩终点,此时的碳酸盐硬度即为该阻垢剂所能维持的极限碳酸盐硬度。
王永仪, 费书安, 于泮池
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对三倍浓缩低温多效海水淡化技术的工艺流程、参数及运行效果进行了介绍。充分考虑高浓缩倍率的结垢风险,设计采用海水顺流流程,对蒸发器效数、效间传热温差、海水喷淋密度等进行了优化,并将一套二倍浓缩1 000 t/d低温多效海水淡化装置进行技术改造,对三倍浓缩工艺进行了试验验证,测试了蒸发器的抗结垢性能和耐腐蚀性能。运行结果显示,浓缩比、造水比等各项性能指标达到预期目标。
刘学忠
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从我国石化行业循环冷却水系统浓缩倍数的现状介绍入手,从设计、现场管理和水处理药剂等三个方面分析了影响浓缩倍数提高的原因并结合一些石化企业的处理实例介绍了提高循环冷却水浓缩倍数的几条有效途径。最后提出了在高浓缩倍数条件下运行的几点建议。
欧阳志
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ABSTRACT The rapid advancement of 5G communication technology has intensified electromagnetic pollution, creating an urgent demand for flexible multifunctional fabrics with efficient electromagnetic interference (EMI) shielding performance. This study proposes a novel material‐stacked construction strategy to fabricate multifunctional MXene/cellulose ...
Zong‐Kai Yan +9 more
wiley +1 more source
Abstract Patricia Berry’s interpretation of the Demeter/Persephone myth, and her concept of rape into consciousness, illuminate intrapsychic dynamics. However, this symbolic lens may inadvertently distance us from the devastating nature of literal rape—a reality the Homeric Hymn encapsulates.
Barbara Cerminara
wiley +1 more source
浓缩倍数是循环冷却水处理中一项重要的控制指标。浓缩倍数控制不仅决定了水处理费用的高低,而且影响水处理效果。浓缩倍数控制的高,可节省水费和药费,但冷却水系统结垢趋向增加了。
张殿臣
doaj +2 more sources
Plant nutrient‐acquisition strategies contribute to species replacement during primary succession
Pioneer species Hippophae acquires phosphorus and nitrogen mainly by ‘mining’ and N2‐fixing strategies and thus dominates in the beginning of primary succession. As soil nutrient availability increases with the mobilization of apatite‐P and input of N‐rich plant residues, Hippophae' strategies become less efficient than Populus's scavenging strategies.
Xiao‐Long Li +12 more
wiley +1 more source
焦化废水处理过程中产生的浓盐水盐分含量高,处理难度大,是焦化废水能否实现零排放的关键问题。首先分析了焦化废水中盐分的来源和特征,然后分别介绍了主要的废水浓缩技术和盐分结晶技术的特点及其在浓盐水处理中的应用。废水浓缩是为了进一步提高浓盐水中的盐分含量,降低后续盐分结晶的成本,常用的浓缩技术包括电渗析、纳滤、反渗透等。浓缩后的浓盐水需要进行盐分结晶分离,才能实现零排放处理。与混盐结晶相比,分质结晶通过纳滤分离不同价态离子,将废水中的NaCl和Na2SO4分别回收,可以实现盐分的资源化利用,降低处置成本 ...
张锐, 袁进, 李超
doaj +2 more sources

