Gongye shui chuli水体中磷元素含量超标会引发藻类大量繁殖，进而导致水体富营养化。为有效削减废水中磷含量，本研究以废弃物咖啡渣为原材料，采用凝胶煅烧法制备了一种易于回收的珠状生物炭材料（SA-BC）以吸附去除水中的磷酸盐。考察了吸附剂投加量、溶液pH、环境温度、共存离子对生物炭吸附磷酸盐性能的影响，分析了改性生物炭珠对磷的吸附动力学和热力学，并进一步揭示了吸附机理。结果表明，改性生物炭珠材料对磷酸盐吸附符合准二级动力学模型和Freundlich等温线模型，最大吸附容量为173.39 mg/g，在较宽的pH范围（3~12 ...
宋姿 +5 more
doaj +4 more sources
Gongye shui chuli磷超标水产养殖尾水排放易引发受纳水体富营养化，而基于聚合氯化铝（PAC）、聚合硫酸铁（PFS）等的传统化学除磷法弊端突出。硅藻土作为一种吸附材料已被广泛研究，但目前适用于水产养殖尾水除磷的高效、环保改性硅藻土依然匮乏。为此，以海水为Ca/Mg源、Na2CO3为沉淀剂制备了改性硅藻土，探究其对实际水产养殖尾水中磷的去除效果及机理，并与未改性硅藻土、PAC、PFS等材料作对比。结果表明，Ca2+和CO32-在Mg2+的稳定作用下反应生成了含Mg无定形碳酸钙（ACC）纳米颗粒，并负载于改性硅藻土表面 ...
吴锡辉 +5 more
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Gongye shui chuli随着核能的大力发展，开发环境友好型生物基吸附剂对放射性核素污染控制具有重要意义。采用混合交联法制备一种新型单宁酸复合海藻酸钠（TA/SA）微球，考察了TA和SA质量比、溶液pH、U（Ⅵ）初始浓度、接触时间和温度等因素对TA/SA吸附U（Ⅵ）行为的影响，并进行了吸附动力学和热力学研究，探讨了TA/SA微球对U（Ⅵ）的吸附机理。结果表明，TA和SA的最佳质量比为1∶2，pH对TA/SA微球吸附U（Ⅵ）效果的影响较小。在U（Ⅵ）质量浓度为50 mg/L，TA/SA微球投加量为0.1 g/L，溶液pH=4 ...
刘清 +4 more
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[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]
Se PuJiao RW +9 more
europepmc +1 more source
[Research progress on the application of pollen in the biomedical field]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiBai L, Wang Y, Yang L, Wang Y, Sun Y.
europepmc +1 more source
[Research progress of gelatin composites in promoting peripheral nerve regeneration]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhang S +6 more
europepmc +1 more source
[Research progress on sample pretreatment technology for the analysis of new pollutants in food using composite covalent organic framework materials]. [PDF]
Se PuSun ZY, Yuan GN, Niu YY, Ma JP.
europepmc +1 more source
[Isolation, purification and immunomodulatory activity of polysaccharide from <i>Lonicera caerulea</i> L. var. <i>edulis</i> Turcz. ex Herder]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoHuang Y +6 more
europepmc +1 more source
[Three-dimensional printed scaffolds with sodium alginate/chitosan/mineralized collagen for promoting osteogenic differentiation]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYang B +6 more
europepmc +1 more source
[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.
europepmc +1 more source