Bioremediation of Perfluoroalkyl Substances (PFAS) by Anaerobic Digestion: Effect of PFAS on Different Trophic Groups and Methane Production Accelerated by Carbon Materials

全氟辛酸 环境化学 化学 营养水平 环境修复 污染物 厌氧消化 废水 污水 甲烷 污染 环境工程 环境科学 生态学 有机化学 生物
作者
Ana Rita Silva,M. Salomé Duarte,M. M. Alves,Luciana Pereira
出处
期刊:Molecules [Multidisciplinary Digital Publishing Institute]
卷期号:27 (6): 1895-1895 被引量:28
标识
DOI:10.3390/molecules27061895
摘要

Per- and polyfluoroalkyl substances (PFAS) are recalcitrant pollutants which tend to persist in soils and aquatic environments and their remediation is among the most challenging with respect to organic pollutants. Anaerobic digestion (AD) supplemented with low amounts of carbon materials (CM), acting as electron drivers, has proved to be an efficient process for the removal of organic compounds from wastewater. This work explores the impact of PFAS on different trophic groups in anaerobic communities, and the effect of carbon nanotubes (CNT), activated carbon (AC), and oxidized AC (AC-HNO3), as electron shuttles on the anaerobic bioremoval of these compounds, based on CH4 production. The inhibition of the specific methanogenic activity (SMA) exerted by perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), at a concentration of 0.1 mg L−1, was below 10% for acetoclastic and below 15%, for acetogenic communities. Hydrogenotrophic methanogens were not affected by the presence of PFAS. All CM reduced the negative impact of PFAS on the CH4 production rate, but AC was the best. Moreover, the methanization percentage (MP) of sewage sludge (SS) increased 41% in the presence of PFOS (1.2 g L−1) and AC. In addition, AC fostered an increase of 11% in the MP of SS+PFOS, relative to the condition without AC. AC promoted detoxification of PFOA- and PFOS-treated samples by 51% and 35%, respectively, as assessed by Vibrio fischeri assays, demonstrating the advantage of bringing AD and CM together for PFAS remediation.

科研通智能强力驱动
Strongly Powered by AbleSci AI
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
yanweifu发布了新的文献求助10
1秒前
儒雅的夜白完成签到,获得积分10
1秒前
1秒前
3秒前
情怀应助婷儿采纳,获得10
4秒前
纹个猪发布了新的文献求助10
4秒前
勤恳彤发布了新的文献求助10
4秒前
5秒前
酷炫的雨莲完成签到,获得积分20
5秒前
hwj完成签到,获得积分10
6秒前
bxx完成签到,获得积分10
6秒前
zzzz发布了新的文献求助10
6秒前
7秒前
灿澈完成签到,获得积分10
7秒前
7秒前
7秒前
9秒前
molihuakai应助泠泠有声采纳,获得10
9秒前
9秒前
啦啦啦啦发布了新的文献求助10
10秒前
Fearless发布了新的文献求助10
10秒前
纹个猪完成签到,获得积分10
12秒前
13秒前
Chen发布了新的文献求助30
13秒前
Masche14发布了新的文献求助10
14秒前
14秒前
静谧的薯条完成签到,获得积分10
15秒前
X519664508完成签到,获得积分0
16秒前
论高等数学的无用性完成签到 ,获得积分10
16秒前
arniu2008发布了新的文献求助10
17秒前
18秒前
忧伤发布了新的文献求助10
18秒前
Rain发布了新的文献求助10
18秒前
可爱的青荷完成签到,获得积分10
19秒前
20秒前
niiiiii完成签到,获得积分10
20秒前
20秒前
小黄完成签到 ,获得积分10
20秒前
20秒前
Ava应助霸气保温杯采纳,获得20
21秒前
高分求助中
Overcoming Stigma and Bias in Obesity Management 800
Malcolm Fraser : a biography 700
Signals, Systems, and Signal Processing 610
Bounds for Statistical Estimation in Semiparametric Models 500
Climate change and sports: Statistics report on climate change and sports 500
Forced degradation and stability indicating LC method for Letrozole: A stress testing guide 500
A Foreign Missionary on the Long March: The Unpublished Memoirs of Arnolis Hayman of the China Inland Mission 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 纳米技术 工程类 有机化学 化学工程 生物化学 计算机科学 物理 内科学 复合材料 催化作用 物理化学 光电子学 电极 细胞生物学 基因 无机化学
热门帖子
关注 科研通微信公众号,转发送积分 6466921
求助须知:如何正确求助?哪些是违规求助? 8273168
关于积分的说明 17640030
捐赠科研通 5542114
什么是DOI,文献DOI怎么找? 2908054
邀请新用户注册赠送积分活动 1885018
关于科研通互助平台的介绍 1733324