Evidence map›Paper›PMID 36837697›Full record

ArticleMembranes2023

Biochar Addition in Membrane Bioreactor Enables Membrane Fouling Alleviation and Nitrogen Removal Improvement for Low C/N Municipal Wastewater Treatment.

Kanming Wang, Qiaoqiao Ye, Yuxiang Shen, Yajing Wang, Qiankun Hong, Chenlong Zhang, Min Liu, Hongyu Wang

Abstract read
In one paragraph

Article in Membranes, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Kanming WangCollege of Architecture and Environment, Sichuan University, Chengdu 610000, China.ORCID 0000-0002-3762-3274
Qiaoqiao YeCollege of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
Yuxiang ShenCollege of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
Yajing WangCollege of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
Qiankun HongCollege of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
Chenlong ZhangNingbo Communications Planning Institute Co., Ltd., Ningbo 315100, China.
Min LiuCollege of Architecture and Environment, Sichuan University, Chengdu 610000, China.
Hongyu WangCollege of Environment, Zhejiang University of Technology, Hangzhou 310014, China.

Funding

China Postdoctoral Science Foundation 2021M692264National Natural Science Foundation of China 22178323
6 · The paper itself

Abstract

Membrane bioreactors (MBRs) are frequently used to treat municipal wastewater, but membrane fouling is still the main weakness of this technology. Additionally, the low carbon-nitrogen (C/N) ratio influent has been shown to not only increase the membrane fouling, but also introduce challenges to meet the effluent discharge standard for nitrogen removal. Herein, the authors addressed the challenges by adding cost-effective biochar. The results suggested that the biochar addition can enable membrane fouling alleviation and nitrogen removal improvement. The reduced membrane fouling can be ascribed to the biochar adsorption capacity, which facilitates to form bigger flocs with carbon skeleton in biochar as a core. As a result, the biochar addition significantly altered the mixed liquor suspension with soluble microbial product (SMP) concentration reduction of approximately 14%, lower SMP protein/polysaccharide ratio from 0.28 ± 0.02 to 0.22 ± 0.03, smaller SMP molecular weight and bigger sludge particle size from 67.68 ± 6.9 μm to 113.47 ± 4.8 μm. The nitrogen removal is also dramatically improved after biochar addition, which can be due to the initial carbon source release from biochar, and formation of aerobic-anaerobic microstructures. Microbial diversity analysis results suggested more accumulation of denitrification microbes including

Indexed as

biocharcarbon source releaselow C/N ratiomembrane foulingmicrobial diversity

Identifiers

PMID36837697
PMCPMC9960794

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.