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| 1 | Removing ammonium from water and wastewater using cost-effective adsorbents:A review显示文摘Ammonium is an important nutrient in primary production; however, high ammonium loads can cause eutrophication of natural waterways, contributing to undesirable changes in water quality and ecosystem structure. While ammonium pollution comes from diffuse agricultural sources, making control difficult, industrial or municipal point sources such as wastewater treatment plants also contribute significantly to overall ammonium pollution.These latter sources can be targeted more readily to control ammonium release into water systems. To assist policy makers and researchers in understanding the diversity of treatment options and the best option for their circumstance, this paper produces a comprehensive review of existing treatment options for ammonium removal with a particular focus on those technologies which offer the highest rates of removal and cost-effectiveness. Ion exchange and adsorption material methods are simple to apply, cost-effective, environmentally friendly technologies which are quite efficient at removing ammonium from treated water. The review presents a list of adsorbents from the literature, their adsorption capacities and other parameters needed for ammonium removal. Further, the preparation of adsorbents with high ammonium removal capacities and new adsorbents is discussed in the context of their relative cost, removal efficiencies, and limitations. Efficient, cost-effective, and environmental friendly adsorbents for the removal of ammonium on a large scale for commercial or water treatment plants are provided. In addition, future perspectives on removing ammonium using adsorbents are presented. | Jianyin Huang Nadeeka Rathnayake Kankanamge Christopher Chow David T.Welsh Tianling Li Peter R.Teasdale | 2018 | Journal of Environmental Sciences2018，30，1： | 13 |
| 2 | 不同pH值紫色土对NH_4^+的吸附动力学显示文摘研究了不同p H值条件下紫色土对NH+4的吸附/解吸性能。结果表明:3种p H值的紫色土对NH+4的吸附量和解吸量均随着加入NH+4浓度的增大而增大,其中p H值为6.0的紫色土的最大吸附量是10.3 mg/g,最大解吸量是7.96 mg/g;p H值为7.2的紫色土的最大吸附量是12.8 mg/g,最大解吸量是4.62 mg/g;p H值为8.0的紫色土的最大吸附量是13.5 mg/g,最大解吸量是2.23 mg/g。Freundlich方程能很好地描述紫色土对NH+4的等温吸附动力学过程,其R值均在0.95以上。本研究表明紫色土对NH+4的吸附属于不均匀表面的多分子层吸附。 | 张迪男 蒋先军 | 2014 | 江苏农业科学2014，42，11： | 4 |
| 3 | 稻壳、丝瓜络和玉米芯对铜离子吸附特性比较研究显示文摘以丝瓜络、玉米芯和稻壳为原料,经化学修饰处理得到三种生物吸附剂。研究其对溶液中Cu^2+的吸附性能。考察了pH、Cu^2+初始浓度、温度对三种吸附剂吸附能力的影响。结果表明:稻壳、丝瓜络和玉米芯对Cu^2+的最大吸附量分别为4.88 mg/g、4.42 mg/g和5.08 mg/g。玉米芯和丝瓜络的吸附过程符合Freundlich方程,而稻壳用用Langmuir和Freundlich都可以进行较好的拟合。对于丝瓜络弱碱是一种理想的Cu^2+解吸剂。对重金属Cu^2+回收有重要意义。 | 章聚宝 张玉才 孙艳美 | 2020 | 广州化工2020，48，10： | 2 |
| 4 | Boston Ivy-Inspired Disc-Like Adhesive Microparticles for Drug Delivery显示文摘Microparticles with strong adherence are expected as efficient drug delivery vehicles.Herein,we presented an ingenious hydrogel microparticle recapitulating the adhesion mechanism of Boston ivy tendrils adhesive discs(AD)for durable drug delivery.The particles were achieved by replicating a silica colloidal crystal aggregates assembled in a droplet template after rapid solvent extraction.Due to their unique shape,the nanostructure,and the sticky hydrogel component,such novel microparticles exhibited prominent adhesive property to the wet tissue environment.It was demonstrated that the bioinspired microcarriers loading with dexamethasone had a good therapeutic effect for ulcerative colitis due to the strong adhesion ability for prolonging the maintenance of drug availability.These virtues make the biomimetic microparticles potentially ideal for many practical clinical applications,such as drug delivery,bioimaging,and biodiagnostics. | Lijun Cai Guopu Chen Yuetong Wang Cheng Zhao Luoran Shang Yuanjin Zhao | 2021 | Research2021，，1： | 2 |
| 5 | 硫酸活化市政污泥对氨氮的吸附研究显示文摘采用污水厂剩余污泥作为原料,以硫酸作为活化剂制备吸附剂,并将其应用到含氨氮废水处理中。进而系统地研究了溶液初始p H值、氨氮初始浓度、吸附时间等因素对硫酸活化市政污泥吸附氨氮的影响。结果表明,在吸附剂投加量为2 g/L、p H值为7.5、温度为303 K条件下,硫酸活化市政污泥对氨氮的吸附效果最佳。吸附动力学和热力学研究结果表明,吸附剂对氨氮的吸附过程可用准二级动力学模型(R2=0.998 6)来描述,且均符合Langmuir等温吸附模型、Freundlich等温吸附模型和Temkin等温吸附模型。由Langmuir等温吸附模型计算得到活化市政污泥对氨氮的最大吸附容量为44.84 mg/g。颗粒内扩散速率也是其吸附反应的限制因素,但不是唯一限制因素。该研究表明硫酸活化剩余污泥可以作为处理含氨氮废水的材料。 | 汪爱河 张纯 张伟 邓玉梅 | 2016 | 中国给水排水2016，32，17： | 1 |
| 6 | 氨基功能化的金属有机框架与模型燃油中含氮化合物的结合作用显示文摘合成了金属有机骨架MIL-53(Al)和MIL-53(Al)-NH_2,并且将其作为吸附剂去除油品中的含氮化合物(喹啉和吡咯)。采用X射线衍射(XRD)、扫描电镜(SEM)、FT-IR光谱以及热重分析等对两种吸附剂进行了表征。结果表明,MIL-53(Al)-NH_2能够快速地吸附油品中的喹啉/吡咯并且显示了较高的吸附容量,但MIL-53(Al)对喹啉/吡咯的吸附容量较低,原因是MIL-53(Al)-NH_2和喹啉之间存在有利的氢键结合,但MIL-53(Al)-NH_2与吡咯的氢键作用相对较低。研究了影响吸附容量的因素,包括吸附时间和温度。采用准一级和准二级动力学模型拟合了喹啉和吡咯的吸附数据,研究了MIL-53(Al)-NH_2对喹啉和吡咯的吸附等温线和吸附热力学。通过简单的溶剂洗涤使得MIL-53(Al)-NH_2再生,并重新用于吸附过程。 | 王蕾 赵新华 熊振湖 张金苗 李晨 武春生 | 2016 | 燃料化学学报2016，44，9： | 0 |
| 7 | 不同pH值紫色土对NH_4^+的吸附动力学(英文)显示文摘研究了不同p H值条件下紫色土对NH4+的吸附/解吸性能。结果表明:3种p H值的紫色土对NH4+的吸附量和解吸量均随着加入NH4+浓度的增大而增大,其中p H值为6.0的紫色土的最大吸附量是10.3 mg/g,最大解吸量是7.96 mg/g;p H值为7.2的紫色土的最大吸附量是12.8 mg/g,最大解吸量是4.62mg/g;p H值为8.0的紫色土的最大吸附量是13.5 mg/g,最大解吸量是2.23 mg/g。Freundlich方程能很好地描述紫色土对NH4+的等温吸附动力学过程,其R值均在0.95以上。该研究表明紫色土对NH4+的吸附属于不均匀表面的多分子层吸附。 | 张迪男 蒋先军 | 2015 | Agricultural Science & Technology2015，16，7： | 0 |
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