Formation and release behavior of iron corrosion products under the influence of bacterial communities in a simulated water distribution system

腐蚀 生物膜 铁细菌 硫酸盐还原菌 胞外聚合物 针铁矿 细菌 化学 硫化铁 磁铁矿 氧化剂 冶金 硫黄 环境化学 化学工程 材料科学 硫酸盐 吸附 生物 有机化学 工程类 遗传学
作者
Huifang Sun,Baoyou Shi,Darren A. Lytle,Yaohui Bai,Dongsheng Wang
出处
期刊:Environmental Science: Processes & Impacts [Royal Society of Chemistry]
卷期号:16 (3): 576-576 被引量:45
标识
DOI:10.1039/c3em00544e
摘要

To understand the formation and release behavior of iron corrosion products in a drinking water distribution system, annular reactors (ARs) were used to investigate the development processes of corrosion products and biofilm community as well as the concomitant iron release behavior. Results showed that the formation and transformation of corrosion products and bacterial community are closely related to each other. The presence of sulfate-reducing bacteria (SRB, e.g. Desulfovibrio and Desulfotomaculum), sulfur-oxidizing bacteria (SOB, e.g. Sulfuricella), and iron-oxidizing bacteria (IOB, e.g. Acidovorax, Gallionella, Leptothrix, and Sphaerotilus) in biofilms could speed up iron corrosion; however, iron-reducing bacteria (IRB, e.g. Bacillus, Clostridium, and Pseudomonas) could inhibit iron corrosion and iron release. Corrosion scales on iron coupons could develop into a two-layered structure (top layer and inner layer) with time. The relatively stable constituents such as goethite (α-FeOOH) and magnetite (Fe3O4) mainly existed in the top layers, while green rust (Fe6(OH)12CO3) mainly existed in the inner layers. The IOB (especially Acidovorax) contributed to the formation of α-FeOOH, while IRB and the anaerobic conditions could facilitate the formation of Fe3O4. Compared with the AR test without biofilms, the iron corrosion rate with biofilms was relatively higher (p < 0.05) during the whole experimental period, but the iron release with biofilms was obviously lower both at the initial stage and after 3 months. Biofilm and corrosion scale samples formed under different water supply conditions in an actual drinking water distribution system verified the relationships between the bacterial community and corrosion products.
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
Coatings发布了新的文献求助10
刚刚
Megumi完成签到,获得积分10
刚刚
2秒前
小赵发布了新的文献求助10
3秒前
4秒前
oky完成签到 ,获得积分10
4秒前
5秒前
fish完成签到 ,获得积分10
5秒前
曲艺发布了新的文献求助10
6秒前
6秒前
古夕完成签到,获得积分10
7秒前
8秒前
9秒前
9秒前
11秒前
lm发布了新的文献求助10
11秒前
无所归兮应助曲艺采纳,获得10
12秒前
12秒前
yar应助alone采纳,获得30
13秒前
za==应助小赵采纳,获得10
13秒前
14秒前
豆芽发布了新的文献求助10
14秒前
oky发布了新的文献求助10
14秒前
wdy111应助迷路硬币采纳,获得20
16秒前
16秒前
17秒前
艺高人胆大鸡腿完成签到 ,获得积分10
20秒前
乐乐应助焦糖采纳,获得10
20秒前
科研通AI2S应助nalan采纳,获得10
21秒前
静_完成签到 ,获得积分10
21秒前
21秒前
雪白元蝶发布了新的文献求助10
22秒前
22秒前
22秒前
留白完成签到 ,获得积分10
23秒前
共享精神应助小圆采纳,获得10
23秒前
23秒前
慕青应助梵高的向日葵采纳,获得10
23秒前
SYLH应助科研通管家采纳,获得20
23秒前
czh应助科研通管家采纳,获得10
23秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Economic Geography and Public Policy 900
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
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 3988786
求助须知:如何正确求助?哪些是违规求助? 3531116
关于积分的说明 11252493
捐赠科研通 3269766
什么是DOI,文献DOI怎么找? 1804771
邀请新用户注册赠送积分活动 881870
科研通“疑难数据库(出版商)”最低求助积分说明 809021