Results 1 to 10 of about 10,311 (118)

Study on Models of Phosphorus Adsorption in Whole Egg Liquid by Three Adsorbents(3种吸附剂的全蛋液磷吸附模型研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2023
Whole egg liquid is rich in protein, fat, and many kinds of vitamins and minerals. It is a natural source of nutritional supplements, but high level of phosphorus limits its use in the diet of patients with kidney disease.
MA Yanqiu(马艳秋)   +3 more
doaj   +1 more source

Experimental study on adsorption of trihalomethane in drinking water by activated carbon(活性炭吸附饮用水中三卤甲烷的实验研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
采用活性炭吸附方法控制饮用水中的三卤甲烷(THMs)。对筛选的活性炭进行动态和静态吸附实验。在ACL1,ACL2,ACY,ACM 4种活性炭中,椰壳活性炭ACL1对THMs的平衡吸附量最高;吸附行为更符合Freundlich经验模型。静态吸附实验结果表明,前1 h ACL1对THMs的吸附效率较高,4 h内达到吸附平衡,当温度为27~36℃时,温度变化对活性炭吸附THMs的影响较小;当THMs的初始浓度为200 μg·L−1时,ACL1对THMs的去除率大于90 ...
HESijia(贺斯佳)   +5 more
doaj   +1 more source

Effect of modified Morita therapy combined with motor imagery training on pulmonary rehabilitation of elderly patients with chronic obstructive pulmonary disease (改良森田疗法结合运动想象在老年慢性阻塞性肺疾病患者肺康复中的应用)

open access: yes中西医结合护理, 2021
Objective To investigate the effect of modified Morita therapy combined with motor imagery training on pulmonary rehabilitation of elderly patients with chronic obstructive pulmonary disease(COPD).
ZHOU Chunxiang (周春香)   +6 more
doaj   +1 more source

4种黄曲霉毒素吸附剂对花生油综合品质的影响Effects of four aflatoxin adsorbents on the comprehensive quality of peanut oil

open access: yesZhongguo youzhi, 2023
黄曲霉毒素污染是影响花生油食用安全性的重要因素之一,为了优化黄曲霉毒素的吸附工艺,分别从吸附剂添加量、吸附时间、吸附温度及黄曲霉毒素B1(AFB1)污染水平等方面研究4种吸附剂(活性白土、膨润土、改性蒙脱土A、改性蒙脱土B)对花生原油中AFB1的吸附效果以及对花生油综合品质的影响。结果表明:添加量为0.1%~1.0%时,4种吸附剂对AFB1的吸附率随添加量增加而提高,达到一定水平后,吸附率维持动态平衡;吸附时间为20~60 min、吸附温度为45~115 ℃时 ...
姜德铭1,刘晓萌1,邹球龙1,印铁1,张晓琳1,张刚2,刘配莲2 JIANG Deming1, LIU Xiaomeng1, ZOU Qiulong1, YIN Tie1, ZHANG Xiaolin1, ZHANG Gang2, LIU Peilian2
doaj   +1 more source

The study of effect of activated carbon adsorbing volatile organic compounds under different conditions(不同条件对活性炭吸附挥发性有机物的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2013
以二氯甲烷和乙醇为模型,研究了活性炭对不同水溶性VOC气体的吸附效果以及改性炭对含水气体的吸附情况.结果表明,活性炭在吸附二氯甲烷时,当气体中水分含量过多时,吸附会受到干扰,并且会产生脱附现象,吸水饱和炭几乎没有吸附作用.而在处理乙醇时,乙醇中的水分对吸附量影响较小.使用改性炭处理二氯甲烷时,其吸附量虽有下降,约为原来的60%,但改性炭能减轻水分对二氯甲烷吸附的干扰和脱附.
ZHOUJian-feng(周剑峰)   +1 more
doaj   +1 more source

Adsorption of Nitrite by Hydrochloric Acid Modified Insoluble Dietary Fiber in Watermelon Peel(盐酸改性西瓜皮不溶性膳食纤维对亚硝酸盐的吸附作用) [PDF]

open access: yesShipin kexue jishu xuebao, 2019
Insoluble dietary fiber (IDF) was extracted from watermelon peel and modified by hydrochloric acid. The adsorptions of nitrite by hydrochloric acid modified insoluble dietary fiber (HCl-IDF) and IDF were evaluated.
LIU Jingna(刘静娜)   +1 more
doaj   +1 more source

腐殖酸对蒙脱石吸附镉离子的影响机理研究

open access: yesShuitu Baochi Xuebao, 2007
实验研究了腐殖酸存在下重金属元素镉(Cd2 )在蒙脱石表面的吸附过程,对比研究了两种不同腐殖酸对吸附机理的影响。结果表明,重金属离子在蒙脱石表面的吸附作用受介质pH的影响。加入腐殖酸后吸附产生滞后现象,蒙脱石先吸附腐殖酸,之后转变为腐殖酸和蒙脱石共同吸附Cd2 作用,吸附量较单独吸附过程更大。吸附机理与腐殖酸的投加量和投加方式有关。
郝红英, 何孟常, 林春野
doaj   +2 more sources

The study of antimony(V) adsorption by commercial iron oxide red(氧化铁红对印染废水中锑(V)的吸附性能)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
印染行业锑(Sb)污染严重,常规除锑工艺难以达标,铁氧化物对水中锑及其化合物具有良好的吸附效果,选取氧化铁红110、138与190,分别记为T110、T138、T190,对模拟印染废水中的Sb(V)进行吸附去除。结果表明,当Sb(V)初始浓度为200 μg·L-1,投加量为0.2 g·L-1时,T138的除锑效果最佳,去除率可达99.44%。XRD图谱显示,氧化铁红的主要成分为α-Fe2O3。TEM与XPS图谱表明,T138的颗粒形状较不规则且相对粗糙,含还原态铁与丰富的羟基位点,有利于吸附Sb(V ...
ZHOUChuchen(周楚晨)   +5 more
doaj   +1 more source

Theoretical analysis of C Is near-edge X-ray absorption fine structure of CO/NiO(100)(CO在NiO(100)面上吸附的近边X射线吸收精细结构理论分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2001
用多重散射团簇(MSC)理论对CO在NiO(100)面吸附的碳Is近边X射线吸收精细结构(NEXAFS)实验谱进行了定量分析,研究了该系统可能出现的吸附模型.MSC方法分析表明CO是以C原子朝下,吸附在衬底的Ni—O键桥上,R-factor(可靠性因子)计算显示C原子的吸附位置距Ni原子0.09nm, CO分子中C原子距衬底的吸附高度为0.31±0.01nm.本文讨论了在NiO表面吸附的CO分子σ键的物理本质.与CO在过渡金属Ni,Cu等表面吸附不同,σ共振对于CO键长的依赖不明显.
ZHUANGFei(庄飞)   +4 more
doaj   +1 more source

湖库底泥对重金属Pb吸附特性的研究

open access: yesShuitu Baochi Xuebao, 2016
为了探究Pb在底泥和土壤中的吸附行为,通过OECD guideline 106平衡吸附法,来探讨Pb在底泥和土壤中的吸附特性以及不同pH、有机质和N、P含量对Pb吸附特性的影响。结果表明:Temkin模型能够更好地拟合底泥对Pb的吸附,r=0.925;Freundlich能够更好地拟合土壤对Pb的吸附,r=0.971。Pb在15,25,35 ℃下吸附条件下,温度升高会促进底泥和土壤对Pb的吸附,ΔG<0,ΔH>0,说明底泥和土壤对Pb吸附为自发的吸热反应;在pH为3~11的条件下 ...
任力洁   +5 more
doaj  

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