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净水剂 - Open Access .click
Results 1 to 10 of about 2,061 (78)

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

我国有机高分子净水剂的研究进展

open access: yesGongye shui chuli, 2006
综述了国内在合成高分子、天然有机高分子和微生物等三类净水剂的研究进展。指出国产有机高分子净水剂仍以非离子和阴离子型聚丙烯酰胺及其改性物为主。以碳水化合物及其衍生物、甲壳素及其衍生物为主的天然改性高分子净水剂和微生物净水剂由于其对环境友好和生物可降解而成为净水剂开发的重点和今后的发展方向。
王万林, 王永利
doaj   +2 more sources

新型净水剂的制备及其在高温高压SAGD采出水中的应用

open access: yesGongye shui chuli, 2010
介绍了新型净水剂的制备,并用红外光谱、热重分析等方法分析了该新型净水剂的结构及热稳定性;利用该净水剂采用自制的可在高温高压下评价净水剂除油性能的装置处理呈高温、高压状态,且含油量高的超稠油SAGD采出水,考察了该净水剂在不同情况下的除油效果。结果表明:产品具有良好的热稳定性,除油性能良好,除油速度快,除油率可达99%以上。
张锁兵   +4 more
doaj   +2 more sources

新型复合净水剂的研究及应用

open access: yesGongye shui chuli, 2000
用聚合硫酸铁、聚合氯化铝和水玻璃为原料,采用两组分或三组分复配成系列净水剂,模拟郑州市自来水公司制水的工艺条件,对黄河原水进行处理试验,测定了净化后的余浊度,绘制了加药量与余浊度的关系曲线。研究发现聚合硫酸铁、聚合氯化铝和聚多硅酸以 3∶3∶2 (质量比)复配的净水剂效果最好,适用温度范围宽。研究了复合净水剂的净水机理。
张鸿云   +3 more
doaj   +2 more sources

Surface Sulfate Modification Promoted Excitons Extraction of BiOBr Nanosheets for Efficient 1O2 Photosynthesis and Chlorophenols Dechlorination

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi   +8 more
wiley   +1 more source

Band Edge Reorganization via Symmetry Constraints in Covalent Bonding Heterojunctions Boosts Photocatalytic Metronidazole Degradation

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The covalent bonds at heterojunction interfaces enable more efficient charge carrier separation than traditional weakly coupled heterojunctions, with enhanced photocatalytic performance for organic wastewater purification. The interfacial covalent bonds drive energy band reorganization, rendering the conventional independent band edge ...
Jing‐Yu Ren   +5 more
wiley   +1 more source

重金属废水净化剂的制备及其应用

open access: yesGongye shui chuli, 1998
描述了用黄铁矿和还原铁粉为原料制备重金属废水净化剂的方法,以及该净化剂处理重金属废水的应用方法。该净化剂对重金属废水的处理效率受制备和应用两方面的多种因素影响。并对含砷、铜和镉的废水进行了处理,对温度、粒度、配比、pH值、用量、时间等影响因素进行了讨论。结果表明该净化剂的制备和应用是简单、有效和经济的。
陶秀成   +3 more
doaj   +2 more sources

Mt6净水剂在株洲冶炼厂废水处理中的应用

open access: yesGongye shui chuli, 2003
介绍了株洲冶炼厂废水治理中存在的问题及应用Mt6净水剂处理株洲冶炼厂重金属废水的试验情况.试验废水流量为5m3/h,运行时间为12d,取得了良好效果.论述了Mt6净水剂的作用机理、特点.试验表明,Mt6净水剂及其成套应用技术在冶金工业废水治理中有较大的推广应用价值.
彭时贵
doaj   +2 more sources

高效净水剂—聚硫氯化铝的开发及应用

open access: yesGongye shui chuli, 1988
近年来,随着水质处理要求的提高和水处理技术的不断进展,日、美、德、苏等国都积极开展新型净水剂的研制,应用试验及生产。在新开发的净水剂中,由于聚合铝的净水混凝性能好,絮凝体大,用量少,效率高,沉降快,适用范围广,加之能除去水中铬、铅等有害杂质,故发展尤为迅速,成为国际上公认的一种优良净水剂。我厂根据使用单位的迫切需要,结合厂里产品结构的调整和产品升级换代工作,开展了对新型净水剂的研制工作。鉴于国内外很多资料介绍,含有二价SO42-配位基的聚硫氯化铝 ...
陈文音
doaj   +2 more sources

一种油田清水剂的合成及应用研究

open access: yesGongye shui chuli, 2020
合成了一种阳离子型清水剂,并对其结构进行了红外谱图、核磁共振谱图表征分析,结果表明该产品与目标产物结构一致。在南海某油田对其净水性能做了现场瓶试试验,在投加量为14 mg/L时,其净水效果良好,下层水中含油质量浓度为79 mg/L。在和多种清水剂的对比试验中发现,该产品的处理效果优于其他几种药剂。
李家俊, 齐玉
doaj   +2 more sources

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