Evaluation of Sludge Deep-Dewatering Filtrate Recirculation to Wastewater Treatment Plant by Toxicity Detection with Microbial Fuel Cells

Qianqian Wen; Yuan Liu; Wenbo Yu; Qian Zhu; Yuwei Zhu; Shijie Bian; Xintai Su; Keke Xiao; Sha Liang; Shushan Yuan; Huijie Hou; Jingping Hu; Jiakuan Yang

doi:10.1021/acsestwater.2c00571

Evaluation of Sludge Deep-Dewatering Filtrate Recirculation to Wastewater Treatment Plant by Toxicity Detection with Microbial Fuel Cells

Qianqian Wen, Yuan Liu, Wenbo Yu^*, Qian Zhu, Yuwei Zhu, Shijie Bian, Xintai Su, Keke Xiao, Sha Liang, Shushan Yuan, Huijie Hou, Jingping Hu, Jiakuan Yang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Sludge dewatered filtrates could generate unpredicted stress to the biological treatment process of wastewater treatment plants (WWTPs) due to the applied chemical compounds. Here, sludge dewatering performances with different conditioners were evaluated and the stress of the dewatered filtrate to the microbial was detected by microbial fuel cells (MFCs). Dewatered filtrates from Fe²⁺/H₂O₂ and Fe²⁺/Ca(ClO)₂ conditioning were recommended, and the voltage inhibition ratios were only 24.28% and 31.58% as the MFC substrate was 100% filtrate. However, the voltage inhibition ratios were up to 70.33% and 90.33% as MFC substrates were 50% filtrate from Fe²⁺/PDS and Fe³⁺/CaO conditioning. High pH (>12) of filtrate from Fe³⁺/CaO conditioning and the remaining oxidation reagent in the filtrate from Fe²⁺/PDS conditioning significantly increased damaged cell ratios at anodic biofilms from 9.8% to 24.6% and 26.1%, indicating negative impacts on microbial activity. This study provided a reference for the impact of dewatered filtrate returned to the influence of WWTPs.

Original language	English
Pages (from-to)	565-575
Number of pages	11
Journal	ACS ES and T Water
Volume	3
Issue number	2
DOIs	https://doi.org/10.1021/acsestwater.2c00571
State	Published - 10 Feb 2023
Externally published	Yes

Keywords

biotoxicity
chemical pretreatment
deep dewatering
filtrate recirculation
microbial fuel cell
waste activated sludge

Access to Document

10.1021/acsestwater.2c00571

Cite this

@article{4658b91271c24803aae54c36052b790a,

title = "Evaluation of Sludge Deep-Dewatering Filtrate Recirculation to Wastewater Treatment Plant by Toxicity Detection with Microbial Fuel Cells",

abstract = "Sludge dewatered filtrates could generate unpredicted stress to the biological treatment process of wastewater treatment plants (WWTPs) due to the applied chemical compounds. Here, sludge dewatering performances with different conditioners were evaluated and the stress of the dewatered filtrate to the microbial was detected by microbial fuel cells (MFCs). Dewatered filtrates from Fe2+/H2O2 and Fe2+/Ca(ClO)2 conditioning were recommended, and the voltage inhibition ratios were only 24.28% and 31.58% as the MFC substrate was 100% filtrate. However, the voltage inhibition ratios were up to 70.33% and 90.33% as MFC substrates were 50% filtrate from Fe2+/PDS and Fe3+/CaO conditioning. High pH (>12) of filtrate from Fe3+/CaO conditioning and the remaining oxidation reagent in the filtrate from Fe2+/PDS conditioning significantly increased damaged cell ratios at anodic biofilms from 9.8% to 24.6% and 26.1%, indicating negative impacts on microbial activity. This study provided a reference for the impact of dewatered filtrate returned to the influence of WWTPs.",

keywords = "biotoxicity, chemical pretreatment, deep dewatering, filtrate recirculation, microbial fuel cell, waste activated sludge",

author = "Qianqian Wen and Yuan Liu and Wenbo Yu and Qian Zhu and Yuwei Zhu and Shijie Bian and Xintai Su and Keke Xiao and Sha Liang and Shushan Yuan and Huijie Hou and Jingping Hu and Jiakuan Yang",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

month = feb,

day = "10",

doi = "10.1021/acsestwater.2c00571",

language = "英语",

volume = "3",

pages = "565--575",

journal = "ACS ES and T Water",

issn = "2690-0637",

publisher = "American Chemical Society",

number = "2",

}

TY - JOUR

T1 - Evaluation of Sludge Deep-Dewatering Filtrate Recirculation to Wastewater Treatment Plant by Toxicity Detection with Microbial Fuel Cells

AU - Wen, Qianqian

AU - Liu, Yuan

AU - Yu, Wenbo

AU - Zhu, Qian

AU - Zhu, Yuwei

AU - Bian, Shijie

AU - Su, Xintai

AU - Xiao, Keke

AU - Liang, Sha

AU - Yuan, Shushan

AU - Hou, Huijie

AU - Hu, Jingping

AU - Yang, Jiakuan

PY - 2023/2/10

Y1 - 2023/2/10

N2 - Sludge dewatered filtrates could generate unpredicted stress to the biological treatment process of wastewater treatment plants (WWTPs) due to the applied chemical compounds. Here, sludge dewatering performances with different conditioners were evaluated and the stress of the dewatered filtrate to the microbial was detected by microbial fuel cells (MFCs). Dewatered filtrates from Fe2+/H2O2 and Fe2+/Ca(ClO)2 conditioning were recommended, and the voltage inhibition ratios were only 24.28% and 31.58% as the MFC substrate was 100% filtrate. However, the voltage inhibition ratios were up to 70.33% and 90.33% as MFC substrates were 50% filtrate from Fe2+/PDS and Fe3+/CaO conditioning. High pH (>12) of filtrate from Fe3+/CaO conditioning and the remaining oxidation reagent in the filtrate from Fe2+/PDS conditioning significantly increased damaged cell ratios at anodic biofilms from 9.8% to 24.6% and 26.1%, indicating negative impacts on microbial activity. This study provided a reference for the impact of dewatered filtrate returned to the influence of WWTPs.

AB - Sludge dewatered filtrates could generate unpredicted stress to the biological treatment process of wastewater treatment plants (WWTPs) due to the applied chemical compounds. Here, sludge dewatering performances with different conditioners were evaluated and the stress of the dewatered filtrate to the microbial was detected by microbial fuel cells (MFCs). Dewatered filtrates from Fe2+/H2O2 and Fe2+/Ca(ClO)2 conditioning were recommended, and the voltage inhibition ratios were only 24.28% and 31.58% as the MFC substrate was 100% filtrate. However, the voltage inhibition ratios were up to 70.33% and 90.33% as MFC substrates were 50% filtrate from Fe2+/PDS and Fe3+/CaO conditioning. High pH (>12) of filtrate from Fe3+/CaO conditioning and the remaining oxidation reagent in the filtrate from Fe2+/PDS conditioning significantly increased damaged cell ratios at anodic biofilms from 9.8% to 24.6% and 26.1%, indicating negative impacts on microbial activity. This study provided a reference for the impact of dewatered filtrate returned to the influence of WWTPs.

KW - biotoxicity

KW - chemical pretreatment

KW - deep dewatering

KW - filtrate recirculation

KW - microbial fuel cell

KW - waste activated sludge

UR - http://www.scopus.com/inward/record.url?scp=85146718705&partnerID=8YFLogxK

U2 - 10.1021/acsestwater.2c00571

DO - 10.1021/acsestwater.2c00571

M3 - 文章

AN - SCOPUS:85146718705

SN - 2690-0637

VL - 3

SP - 565

EP - 575

JO - ACS ES and T Water

JF - ACS ES and T Water

IS - 2

ER -

Evaluation of Sludge Deep-Dewatering Filtrate Recirculation to Wastewater Treatment Plant by Toxicity Detection with Microbial Fuel Cells

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this