Results 21 to 30 of about 468,269 (141)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Recovering palladium (Pd) from low‐concentration metallurgical wastewater still poses significant challenges. In this study, triaminoguanidine hydrochloride was used as the key functional site, and three guanidine‐functionalized covalent organic frameworks (GCOFs) were successfully constructed by adjusting the substituents (–H, –OH, and –OCH3)
Jiaxing Xiong +9 more
wiley +1 more source
Hierarchical Structured TiO2/Boron‐Doped Diamond for Efficient Photo‐Electrocatalytic Degradation
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The discharge of refractory organic dye wastewater poses a significant threat to the ecological environment, necessitating the development of efficient treatment technologies. Herein, a uniform TiO2 array (TiO2‐AR) electrode is fabricated using a combination of magnetron sputtering and a mask plate process with a boron‐doped diamond (BDD ...
Haiming Sun +10 more
wiley +1 more source
Gongye shui chuli, 1987 二、含油废水、脱脂废水的处理含油和脱脂废水的来源极为广泛，如钢铁工业的压延，金属切削、研磨所用的润滑剂废水，石油炼制厂的含油废水，海洋船舶中的含油废水，金属表面处理前的除油废水，羊毛精制时脱脂的洗毛废水等等。含油废水处理的目的是除油，同时除去COD和BOD。废水含油通常是以浮油、分散油和乳化油三种状态存在。
高以烜, 叶凌碧
doaj +2 more sources
High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo +9 more
wiley +1 more source
Gongye shui chuli, 2022 淀粉废水是淀粉生产加工过程中产生的有机废水。该类废水有机物含量丰富、COD高、水质复杂。据统计，2018年中国淀粉年产量达2 700万t，可产生约7 900万t淀粉废水。淀粉废水如直接排放或处理不当，会造成水资源的浪费，同时导致周围水体和土壤的污染，对人类生活与环境构成威胁。淀粉废水的处理已成为淀粉加工行业亟待解决的难题之一。目前淀粉废水处理相关研究主要为资源化利用与传统处理工艺改进等，对高浓度淀粉废水综合处理的研究较少。对高浓度淀粉废水的研究趋势、废水类型、水质特点、处理方法等进行综述 ...
何文文, 霍荣帆, 李强, 陈正军
doaj +2 more sources
Gongye shui chuli, 2016 通过分析食品添加剂废水成分，探讨了现有混合废水处理工艺存在的问题，提出了在现有混合废水处理工艺前增设预处理工序的方案。对混合废水通过Fenton氧化、混凝沉淀等方法进行预处理后，现有污水处理工艺可以正常运行。工艺改造后的运行结果表明：经过预处理的混合废水再经原废水站处理后，出水水质能达到工业园区废水接管标准。由于混合废水得到综合利用，废水排放量也相应减少。
李国生, 郭玲
doaj +2 more sources
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The past decade has witnessed a burgeoning demand of metals for global industrial development and infrastructure. Meanwhile, the depletion of mineral resources and the environmental damage caused by wastewater discharges pose significant threats to both economic and ecological sustainability. Fortunately, metal‐containing wastewaters also hold
Fei Zhang +6 more
wiley +1 more source
Gongye shui chuli, 2006 以再造烟叶(造纸法)生产废水为研究对象，对生产中两种主要工艺废水及生产综合废水进行了多项水质分析。研究结果表明，生产线中提取浓缩段与抄造成型段排放的工艺废水具有不同的水质特性，而生产综合废水则表现为一种弱酸性、中高浓度有机废水特性，可生化性较好。根据废水的上述特性，设计了一种“混凝—生化—脱色”的三级废水处理工艺并应用于2000t/a再造烟叶生产试验基地的废水处理中，工程实施运行后效果良好，吨水处理成本低，治理后的废水排放可达到国家《污水综合排放标准》GB8978—1996一级标准 ...
邱晔, 胡群, 陈辉敏, 彭金辉
doaj +2 more sources
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi +8 more
wiley +1 more source