Evidence map›Paper›PMID 31871923›Full record

ArticleBiotechnology reports (Amsterdam, Netherlands)2020

Biogas production from recycled paper mill wastewater by UASB digester: Optimal and mesophilic conditions.

Mohammed Bakraoui, Fadoua Karouach, Badr Ouhammou, Mohammed Aggour, Azzouz Essamri, Hassan El Bari

Abstract read
In one paragraph

Article in Biotechnology reports (Amsterdam, Netherlands), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

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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

6 authors.

Mohammed BakraouiRenewable Energy and Environment Laboratory, Faculty of Sciences-Kenitra, Ibn Tofail University, Morocco.
Fadoua KarouachRenewable Energy and Environment Laboratory, Faculty of Sciences-Kenitra, Ibn Tofail University, Morocco.
Badr OuhammouRenewable Energy and Environment Laboratory, Faculty of Sciences-Kenitra, Ibn Tofail University, Morocco.
Mohammed AggourRenewable Energy and Environment Laboratory, Faculty of Sciences-Kenitra, Ibn Tofail University, Morocco.
Azzouz EssamriProcess Engineering and Agro-Resources Laboratory, Faculty of Sciences-Kenitra, IbnTofail University, Morocco.
Hassan El BariRenewable Energy and Environment Laboratory, Faculty of Sciences-Kenitra, Ibn Tofail University, Morocco.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The anaerobic digestion (AD) has become an alternative source and an attractive treatment method. Up-flow Anaerobic Sludge Blanket (UASB) digester has been designed to treat the Recycled paper mill wastewater (RPMW) in Morocco. This paper provides a research on anaerobic digestion of RPMW using UASB technology. The UASB digester was designed following the characterization of wastewater and the feed rate, with the volume of 70 liters. The UASB reactor treating the RPMW was operated for 130 days with minimal overload problems. The experiments were carried out in the mesophilic temperature (37 °C) at different organic loading rates (OLR). A daily analysis was performed to ensure the efficiency of the digester. In this study, the AD experiment was performed in continuous mode with an effluent inlet flow rate equal to 1 L/h. Using the optimal OLR value 5.18 g COD/Ld and with an effluent 5,7 g COD/L, a biogas yield of 92 N mL/g COD removed (at normal temperature and pressure) was obtained during the RPMW anaerobic treatment. The reactor was operated at an optimal hydraulic retention time (HRT) of 15.14 h with a biogas production volume of the optimal value 62.5 L/d. These results indicate that RPMW can be effectively treated in a UASB reactor with the advantage of producing biogas. We tested our system with RPMW, to see the production capacity of the UASB system, which the objective is to develop the system for the industrial scale.

Indexed as

Anaerobic digestionBiogasHRTOLRReactor and RPMWUp flow - anaerobic sludge blanket

Identifiers

PMID31871923
PMCPMC6909209

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.