Spectroscopic insights into the binding characteristics of heavy metals to dissolved organic matter in landfill leachate

渗滤液 溶解有机碳 化学 环境化学 有机质 金属 有机化学
作者
Shengzi Duan,Peng Li,Wei Chen,Kim Kofi Kwakye,Kanggen Zhou,Chunying Teng
出处
期刊:Chemosphere [Elsevier BV]
卷期号:352: 141433-141433 被引量:8
标识
DOI:10.1016/j.chemosphere.2024.141433
摘要

Landfill leachate is produced in the process of sanitary landfilling, which contains significant amounts of dissolved organic matter (DOM) and heavy metal contaminants. Insights into the interactions between heavy metals and DOM in landfill leachate are beneficial for the understanding of heavy metal fates and optimization of landfill leachate treatment. In this work, the coherent structural changes of landfill leachate DOM during binding with various heavy metals were explored through the integration of molecular spectroscopic methods with chemometrics and statistic correlation analyses. The results indicate that protein substances, phenolic and discrete carboxyl groups in landfill leachate DOM were involved in the complexation with heavy metals, resulting in the formation of conjugated macromolecules/aggregates with high aromaticity and molecular weight/size. The fluorescent protein-like, fulvic acid-like, and humic-like fractions in DOM were engaged in the interaction, which were closely related to phenolic-like and carboxylic-like structure. Compared to membrane concentrates DOM, raw leachate DOM exhibited a higher binding affinity to heavy metals (especially for Cu2+, whilst the weakest was Cd2+). The integrated approach provides useful information in elucidating the binding processes of metals with landfill leachate DOM, including site heterogeneity, binding strength and functional group sequences.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
GOW发布了新的文献求助20
刚刚
1秒前
汉堡包应助dream采纳,获得10
1秒前
1秒前
1秒前
1秒前
xuying158发布了新的文献求助10
1秒前
ei123发布了新的文献求助10
1秒前
万能图书馆应助ncjdoi采纳,获得10
1秒前
2秒前
耍酷千亦完成签到 ,获得积分10
2秒前
万能图书馆应助赵帅采纳,获得10
2秒前
ln完成签到,获得积分20
3秒前
SciGPT应助hdy采纳,获得10
3秒前
3秒前
4秒前
BLUU发布了新的文献求助10
4秒前
4秒前
科研通AI2S应助好叭采纳,获得10
4秒前
5秒前
李爱国应助大傻春采纳,获得10
5秒前
大地完成签到,获得积分10
6秒前
烂漫伟祺完成签到,获得积分20
6秒前
6秒前
salt7发布了新的文献求助10
7秒前
北过居庸完成签到,获得积分10
7秒前
顾矜应助WYF采纳,获得10
7秒前
7秒前
7秒前
8秒前
Jasper应助Vincenzo采纳,获得10
8秒前
wz完成签到,获得积分10
9秒前
9秒前
可爱的函函应助鸢翔flybird采纳,获得10
9秒前
充电宝应助健忘的初翠采纳,获得10
10秒前
chenqingsong完成签到,获得积分20
10秒前
爆米花应助shuanglin采纳,获得10
10秒前
10秒前
10秒前
王Hope发布了新的文献求助10
11秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3974844
求助须知:如何正确求助?哪些是违规求助? 3519270
关于积分的说明 11197844
捐赠科研通 3255496
什么是DOI,文献DOI怎么找? 1797791
邀请新用户注册赠送积分活动 877187
科研通“疑难数据库(出版商)”最低求助积分说明 806202