ArticleWater science and technology : a journal of the International Association on Water Pollution Research2025
Removal of pharmaceutical active compounds in multi-module biochar filter (MmBF) for post-septic tank treatment.
Article in Water science and technology : a journal of the International Association on Water Pollution Research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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
2 citing papers in PubMed.
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Pharmaceutically active compounds (PhACs) in wastewater pose significant environmental risks due to their persistence and potential to disrupt aquatic ecosystems. Onsite wastewater treatment systems (OWTS) often fail to adequately remove PhACs. This study investigated the efficiency of a multi-module biochar filter (MmBF) system as secondary treatment in OWTS for removing PhACs. Two parallel MmBF systems, each comprising six sequential modules filled with biochar, were evaluated for their removal of 25 detected PhACs across multiple pharmaceutical classes. The MmBFs were operated with municipal wastewater as influent for over one year, after which wastewater samples were collected and analysed from the influent and effluent of each module. The MmBFs showed consistent reduction in the aggregated PhACs concentrations by >99% over several sampling occasions, with only six PhACs having less than 95% removal. The first aerobic module M1 contributed to more than 92% of the total removal. The subsequent aerobic modules (M2-M3) provided additional reduction, resulting in over 98% of PhACs removal in the aerobic modules. In contrast, the anoxic modules (M4-M5) had a lower overall contribution, but the removal of specific compounds was observed, suggesting potential anaerobic degradation. This study demonstrates the potential of biochar-based systems as a sustainable option for OWTSs.
Indexed as
Identifiers
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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.