Evidence map›Paper›PMID 33751351›Full record

ArticleEnvironmental science and pollution research international2021

Effect of operating temperature on the efficiency of ultra-short-sludge retention time activated sludge systems.

Yuting Shao, Yue Wang, Hongchen Wang, Guo-Hua Liu, Lu Qi, Xianglong Xu, Jingbing Zhang, Shuai Liu, Wenzhuo Sun

Abstract read
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In one paragraph

Article in Environmental science and pollution research international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

9 authors.

Yuting ShaoResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Yue WangResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Hongchen WangResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China. whc@ruc.edu.cn.
Guo-Hua LiuResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Lu QiResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Xianglong XuResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Jingbing ZhangResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Shuai LiuResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.
Wenzhuo SunResearch Center for Low Carbon Technology of Water Environment, School of Environment and Natural Resource, Renmin University of China, Beijing, 100872, China.

Funding

National Major Science and Technology Projects of China 2017ZX07102-003
6 · The paper itself

Abstract

There are abundant recyclable carbon, nitrogen, and phosphorus resources in wastewater and their efficient recovery is a heavily studied topic at present. As an effective means of carbon and phosphorus recovery, the ultra-short-sludge retention time (SRT) activated sludge (USSAS) system has increasingly attracted the attention of researchers. In this study, the capture efficiency and mechanism of carbon/phosphorus, and the microbial characteristics of the USSAS system, were studied at different temperatures (12, 18, 24, and 30 °C) and a 3-day SRT. The results showed that temperature had little effect on the carbon capture efficiency but had a considerable impact on the carbon capture mode. Increasing temperature decreased the EPS content and increased the biological metabolic activity, then decreasing adsorption but increasing the biotransformation effect. There was a negative correlation between temperature and phosphorus capture efficiency. As the temperature increased, the biological phosphorus removal effect decreased, but the adsorptive phosphorus removal effect gradually increased. With decreasing temperatures, the mixed liquid volatile suspended solid (MLVSS)/mixed liquid suspended solid (MLSS) value increased, but there was a risk of sludge bulking. Kinetic parameters confirmed microbial energy storage under lower temperature conditions and high biological activity under higher temperature conditions.

Indexed as

BioreactorsSewageNitrogenPhosphorusTemperatureWaste Disposal, FluidWastewaterNitrogenPhosphorusSewageWastewaterCapture modeCarbon and phosphorus recoveryCarbon captureEffect of temperatureKinetic parametersPhosphorus capture

Identifiers

PMID33751351

What OpenQuestion holds

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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.