Results 31 to 40 of about 146 (42)
Shuitu Baochi Xuebao, 2007 采用通过盆栽试验,研究了膨润土和沸石对镉污染土壤的治理效果。结果表明,施加膨润土后不同污染程度土壤的交换态、碳酸盐结合态镉的质量分数都有所下降,铁锰氧化物结合态、有机结合态和残渣态镉的质量分数则有所上升。沸石和膨润土对轻度、中度镉污染土壤都表现出钝化作用,对重度镉污染土壤,膨润土对镉的钝化效果明显,而沸石却起到了激活镉的作用。在不同程度镉污染土壤上,膨润土可增加乌塌菜的生物量,并可抑制其对镉的吸收,降低乌塌菜植株体内镉的浓度,对乌塌菜的生长具有显著的促进作用 ...
刘秀珍, 赵兴杰, 马志宏
doaj
Gongye shui chuli, 2012 以十二烷基二甲基苄基氯化铵作阳离子表面活性剂，十二烷基苯磺酸钠作阴离子表面活性剂，按一定配比混合对膨润土进行改性，探究其对废水溶液中甲醛的吸附条件，并考察了阳、阴离子表面活性剂用量、改性膨润土投加量、pH和吸附平衡时间等对吸附效果的影响．结果表明，向25 mL pH=5.0的甲醛废水中投加1.5 g改性制得的阴阳离子膨润土，在(25±1)℃下恒温搅拌吸附150 min后，改性膨润土对甲醛的吸附率达28.9%．其吸附热力学模型为ln K=899.6/T-1.786 1，该吸附反应能在常温下自发进行 ...
刘玲, 谢绍娆
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Gongye shui chuli, 2020 针对重金属含量严重超标的废弃钻井液，提出以β-环糊精与膨润土联合制备高效重金属吸附剂。β-环糊精/膨润土对Cd（Ⅱ）与Cr（Ⅲ）的吸附行为高度符合D-R方程，符合准二级动力学模型，吸附过程受化学及离子交换吸附控制。室温（25℃）下β-环糊精/膨润土投加质量浓度为9 g/L，处理结果可达《地表水环境质量标准》（GB 3838— 2002）Ⅱ类水体标准，吸附平衡时间为9 min。
董汶鑫 +3 more
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Gongye shui chuli, 2009 以钼酸铵为改性剂,对天然膨润土进行无机改性,制得钼酸铵无机改性土用于屠宰废水的处理。实验结果表明:在投加膨润土质量浓度为15g/L、pH=5、搅拌时间为10min、离心时间10min的条件下,COD去除率可达90%,达到了预期目标。
邵红, 程慧, 邵爽, 庄新贺
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[A clinicopathological analysis of 160 cases of adult Langerhans cell histiocytosis]. [PDF]
Zhonghua Xue Ye Xue Za Zhi, 2015 Xu X +7 more
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[Pediatric thunderstorm asthma in China: epidemiological characteristics and comprehensive management]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHan P, Shen KL.
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Performance Gaps and Optimization Strategies in Chinese Medical Large Language Models Based on MedBench: Evaluation Study. [PDF]
JMIR AIJiang L +6 more
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[Functional requirements and research advances of antimicrobial hydrogels for combat trauma wound repair]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWu B, Wei G.
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Design strategy of hydrogel wound dressings based on oral special environment. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiXu R, Pan Z, Zou D.
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[Application Value of an AI-based Imaging Feature Parameter Model for Predicting the Malignancy of Part-solid Pulmonary Nodule]. [PDF]
Zhongguo Fei Ai Za ZhiLin M +8 more
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