ArticleJournal of animal science and technology2026
Real-time determination of swine manure liquid compost maturity by oxidation-reduction potential and pH monitoring.
Article in Journal of animal science and technology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to develop a real-time diagnostic method for assessing the maturity of liquid compost from swine manure by monitoring the oxidation-reduction potential (ORP) and pH, two key indicators of the oxidative status of organic matter and nitrogen compounds. The experimental system comprised a cylindrical bioreactor equipped with an aeration and mixing device. During the liquid composting process of swine manure in the bioreactor, the ORP and pH were continuously monitored, while changes in the liquid compost maturity and concentrations of soluble nitrogen and organic matter were observed. In addition, the physicochemical differences between mature liquid compost (MLC) and non-mature liquid compost (NMLC) were comparatively analyzed. The MLC exhibited significantly higher ORP and lower pH with lower ammonium nitrogen concentrations and higher concentrations of oxidized nitrogen compounds (NOₓ-N) compared to NMLC. A diagnostic method combining ORP and pH thresholds was proposed, where samples with an ORP greater than or equal to 180 mV were classified as MLC. In addition, samples with an ORP between 0 and 180 mV and pH < 8 were classified as MLC. Field validation at a swine manure liquid composting facility confirmed the accuracy of the diagnostic method, achieving 100% agreement with liquid compost maturity analysis using an automatic liquid compost maturity tester. This study provides a simple and effective tool for optimizing liquid compost production, minimizing ammonia emissions, and enhancing liquid compost maturity in swine manure recycling systems.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.