Assessing the impact of increasing phenol loads on the performance and stability of an aerobic granular sludge system

苯酚 曝气 化学 序批式反应器 有机质 沉淀 制浆造纸工业 废水 活性污泥 强化生物除磷 无氧运动 生物降解 色谱法 环境工程 有机化学 环境科学 生物 工程类 生理学
作者
A. J. F. Nunes,José Sebastião dos Santos,Isabelli Dias Bassin,Márcia Dezotti,João Paulo Bassin
出处
期刊:Biochemical Engineering Journal [Elsevier]
卷期号:198: 108997-108997 被引量:2
标识
DOI:10.1016/j.bej.2023.108997
摘要

This work evaluated the impact of phenol on the performance and stability of an aerobic granular sludge (AGS) sequencing batch reactor (SBR) operated under alternating anaerobic-aerobic conditions for simultaneous organic matter, nitrogen, and phosphorus removal. The reactor was fed with synthetic wastewater whose phenol concentration was gradually increased from 2 to 200 mg L−1, while the other carbon source (acetate) was reduced proportionally to keep the organic loading rate invariable. Up to 20 mg L−1 of phenol, the average COD removal was above 90%, while practically full ammonium, phosphorus, and phenol removal was achieved. However, at higher phenol concentrations, the activity of polyphosphate-accumulating organisms and nitrifiers was affected. Although the overall COD removal was only slightly affected by increasing phenol loads, replacing the main carbon source from acetate to phenol changed the organic matter removal profile over the cycle, with the latter being converted mainly within the aerated stage of the SBR. As a result, there was filamentous growth that deteriorated the settling properties of the granules. The establishment of an anaerobic feast-aerobic famine regime over the non-aerated and aerated phases of the AGS SBR and the presence of a readily biodegradable substrate (such as acetate) proved to be crucial for maintaining granules stability. Having phenol as the sole organic carbon source led to complete process failure regarding nutrient removal capability.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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
热心书雁完成签到,获得积分10
刚刚
eda发布了新的文献求助10
4秒前
练英雄完成签到 ,获得积分10
4秒前
李爱国应助SSD采纳,获得10
5秒前
吉祥应助pinging采纳,获得10
5秒前
6秒前
风寒完成签到,获得积分10
7秒前
仁爱的谷南完成签到,获得积分10
7秒前
平淡南霜完成签到,获得积分20
11秒前
11秒前
平淡南霜发布了新的文献求助10
13秒前
14秒前
15秒前
xttt完成签到,获得积分20
17秒前
18秒前
Ava应助漠池采纳,获得10
19秒前
科研通AI2S应助淡然凌兰采纳,获得10
20秒前
谦让霸完成签到,获得积分10
21秒前
大意的衣完成签到,获得积分10
21秒前
vickki关注了科研通微信公众号
22秒前
22秒前
仁继宪完成签到 ,获得积分10
22秒前
XD发布了新的文献求助10
23秒前
believelc发布了新的文献求助10
24秒前
24秒前
Lucas应助可乐采纳,获得10
25秒前
26秒前
田様应助幽默浩宇采纳,获得10
26秒前
完美世界应助pinging采纳,获得10
27秒前
柚子发布了新的文献求助10
27秒前
28秒前
29秒前
CipherSage应助redglo采纳,获得10
29秒前
周欣完成签到,获得积分10
30秒前
30秒前
TaiYueQian发布了新的文献求助20
30秒前
rylee发布了新的文献求助30
32秒前
连寒香应助南宫映榕采纳,获得10
33秒前
xttt关注了科研通微信公众号
33秒前
eda完成签到,获得积分20
35秒前
高分求助中
Sustainability in Tides Chemistry 1500
TM 5-855-1(Fundamentals of protective design for conventional weapons) 1000
Threaded Harmony: A Sustainable Approach to Fashion 799
Livre et militantisme : La Cité éditeur 1958-1967 500
Retention of title in secured transactions law from a creditor's perspective: A comparative analysis of selected (non-)functional approaches 500
"Sixth plenary session of the Eighth Central Committee of the Communist Party of China" 400
New China Forges Ahead: Important Documents of the Third Session of the First National Committee of the Chinese People's Political Consultative Conference 400
热门求助领域 (近24小时)
化学 医学 生物 材料科学 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 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3055972
求助须知:如何正确求助?哪些是违规求助? 2712555
关于积分的说明 7432225
捐赠科研通 2357553
什么是DOI,文献DOI怎么找? 1248929
科研通“疑难数据库(出版商)”最低求助积分说明 606823
版权声明 596195