Evidence map›Paper›PMID 40062339›Full record

ReviewEnvironment, development and sustainability2025

Faecal sludge pyrolysis as a circular economic approach to waste management and nutrient recovery.

Hannah Nicholas, Elinor Winrow, Aisling Devine, Iain Robertson, Ian Mabbett

Abstract readReview
In one paragraph

Review in Environment, development and sustainability, 2025. 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

5 authors.

Hannah NicholasDepartment of Chemistry, Faculty of Science and Engineering, Swansea University, Swansea, Wales SA2 8PP UK.ORCID 0000-0002-2710-6070
Elinor WinrowSpecific, Materials Science and Engineering, Swansea University, Swansea, Wales SA2 8PP UK.
Aisling DevineDepartment of Biosciences, Faculty of Science and Engineering, Swansea University, Swansea, Wales SA2 8PP UK.
Iain RobertsonGeography Department, Faculty of Science and Engineering, Swansea University, Swansea, Wales SA2 8PP UK.
Ian MabbettGeography Department, Faculty of Science and Engineering, Swansea University, Swansea, Wales SA2 8PP UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The disposal of faecal sludge from non-networked sanitation amenities leads to contamination of the surrounding environment and increasing public health problems across developing countries. Permanent solutions to deal with faecal sludge are required to solve the sanitation crisis and achieve the Sustainable Development Goal (SDG) 6 "ensure availability and sustainable management of water and sanitation for all" by 2030. Full-scale pyrolysis of faecal sludge in developing countries is fast becoming a safe and long-term option. Pyrolysis not only eliminates pathogens within the sludge but produces biochar as an end product which has the potential as a soil amendment to increase crop yield. In general, faecal sludge biochars have high pH values, high ash contents, and high macro-and micronutrient concentrations. Compared to biochar from lignocellulosic materials, faecal sludge biochar contains less carbon and exhibits lower porosities, and lower surface areas. However, evaluating the properties of faecal sludge biochar is difficult due to the different technologies used in collection, storage, and transportation of the feedstock. Differences in faecal sludge characteristics based on location, climate, age of the sludge, type of sanitation technology and seasonality are also factors in determining the properties of faecal sludge biochars. These factors contribute to the difficulty in describing faecal sludge biochar properties in general terms, and there is an argument to be made that characteristics of large-scale faecal sludge biochar should be determined on a case-by-case basis. The conclusion of this review is that future research should concentrate on short-term and long-term field studies of faecal sludge biochar application to different soil types.

Indexed as

AgronomicBiocharFaecal sludgeResource recoverySanitationSoil

Identifiers

PMID40062339
PMCPMC11889063

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.