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Purification effect of ex-situ ecological combined remediation system on different forms of phosphorus in tributaries of Jiulong River(异位生态组合修复系统对九龙江支流水体不同形态磷的净化效果)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2023
采用异位生态组合修复系统研究九龙江支流浦林溪污染水体不同形态磷净化效果及其对磷形态百分比的影响,并分析了异位生态组合修复系统各处理单元水体磷形态与环境因子的相关性。结果表明,异位生态组合修复系统对总磷(TP)、溶解态总磷(DTP)、可溶性正磷酸盐(DP)和颗粒态磷(PP)的平均总去除率分别为84.3%、84.4%、90.8%和78.9%,其中对DP净化效果最好。在异位生态组合修复系统各处理单元中,当原水水体中磷浓度较低时,泥膜共生高效混凝净水系统对TP、DTP和DP的净化效果良好,平均去除率分别可达81.
韩笑羽(HAN Xiaoyu)   +10 more
doaj   +1 more source

地下水硝酸盐氮污染原位修复研究进展

open access: yesGongye shui chuli, 2015
可渗透反应墙(PRB)技术是一种经济、高效、节能的地下水污染原位修复方法。阐述了PRB去除地下水中硝酸盐的反应机理、墙体结构,分析比较了零价铁还原原位修复、零价铁还原/生物反硝化联合原位修复、自养反硝化修复地下水氮污染以及适合地下水硝酸盐去除的异养生物反硝化的碳源材料等研究进展,指出了各工艺的不足之处和研究方向,展望了PRB技术原位修复地下水氮污染的发展前景。
蓝梅, 董萌, 吴宏举
doaj   +2 more sources

微生物法分步修复氯代烃污染地下水的初探

open access: yesGongye shui chuli, 2014
以无泡曝气膜组件为氢源和氧源的释放装置,分别建立厌氧还原修复区和好氧氧化分解区,并考察了氢气和氧气曝气压力对水相氧化还原电位的影响及曝气过程对厌氧还原脱氯反应、好氧氧化分解反应的影响.结果表明:厌氧还原脱氯区的氧化还原电位-水相停留时间曲线均呈现出上开口抛物线特征;好氧氧化分解区的氧化还原电位-水相停留时间曲线均呈现出下开口抛物线特征;两个修复区的最佳停留时间比例为4:1.
宋震宇   +6 more
doaj   +2 more sources

Selective Recovery of Palladium From Spent Automotive Exhaust Catalysts Using Amidoxime‐Functionalized Calix[4]arene and Subsequent Reduction to Palladium Nanoparticles

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Spent automotive exhaust catalysts represent the largest secondary resource of palladium (Pd), and their efficient recovery is essential to support the sustainability of Pd‐related industries. Inspired by supramolecular chemistry, a novel calixarene derivative, 5,11,17,23‐tetra‐tert‐butyl‐25,27‐bis[(N′‐hydroxyacetimidamide)ethoxy]‐26,28 ...
Tao Ge   +8 more
wiley   +1 more source

Electron–Hole Dual Cocatalyst Promoted ZnIn2S4 for Photocatalytic H2 Evolution Coupled With Benzyl Alcohol Oxidation

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The central challenge in photocatalysis is to direct photogenerated electrons and holes toward the simultaneous and efficient production of hydrogen and value‐added chemicals. To address the pronounced charge recombination and sluggish surface kinetics of ZnIn2S4 nanoflowers, we construct a ternary photocatalyst synergistically decorated with ...
Xue Men, Haiou Liang, Man Zhang, Jie Bai
wiley   +1 more source

High‐Entropy Alloys for Photocatalysis: From Cocatalyst Engineering to Multifunctional Active Platforms

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Photocatalysis has emerged as a promising approach for solar energy conversion and environmental remediation. However, its practical implementation is still hindered by limited charge‐separation efficiency, slow surface reaction kinetics, and insufficient catalyst stability.
Mengting Zhang   +5 more
wiley   +1 more source

基于多尺度特征融合的轻量化人脸图像修复算法

open access: yesDianxin kexue
针对当前遮挡的人脸图像修复中修复图像质量差和模型参数量大的问题,提出了一种基于多尺度特征融合的改进U-Net的轻量化人脸图像修复模型——LM-UNET。首先,使用深度可分离卷积替换原有卷积,增强模型对不同通道和上下文信息的特征表达能力,实现模型轻量化;其次,在跳跃连接中设计了多尺度特征注意力融合模块,充分融合不同尺度特征的信息,内嵌残差块减少特征间语义差距,提高模型修复准确率;最后,引入了位置注意力模块,增强人脸图像的显著信息,提升模型对人脸位置像素信息的有效提取能力。在基于CK ...
赵晓, 赵子怡, 杨晨
doaj   +1 more source

A Green Strategy for the Ultrafast Synthesis of Functional Hydrogels Toward Intelligent Human–Machine Interfaces

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian   +6 more
wiley   +1 more source

磁性纳米复合吸附剂的制备及其在水处理中的应用

open access: yesGongye shui chuli, 2021
淡水资源紧缺及水生态污染问题是我国乃至全世界关注的重要问题。发展简单高效的水处理技术是解决水污染的核心方法。相较于传统的氧化还原法、离子交换法及膜过滤法等,吸附法具有成本低廉、操作简单、无二次污染的特点。对吸附剂的分类与优势,由磁性纳米载体和壳聚糖、类沸石咪唑酯骨架ZIF-8、ZIF-67及离子液体等具有大量吸附位点的修饰物结合而成的复合吸附剂的合成方法及修饰策略进行介绍,并总结了复合吸附剂对水中污染物,如重金属离子、染料等的去除效果。最后,对现有磁性纳米复合吸附剂存在的不足进行分析总结 ...
贺一晋   +4 more
doaj   +2 more sources

Synergistic Effect of Hydrophilic Surface and Nano‐Ag2O in TiO2‐Based Composites Coating on Antibacterial and Osteogenic Properties of Low Modulus Ti‐Mo‐Ag Alloy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie   +11 more
wiley   +1 more source

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