Enhanced bisphenol A removal from stormwater in biochar-amended biofilters: combined with batch sorption and fixed-bed column studies
Abstract
A high-efficient, low-cost, and practical biochar implementation method is desired to extend biochar's powerful adsorption performance for environmental remediation. This study presents novel results with advanced biochar application by integrating biochar with biofilter for the removal of bisphenol A (BPA) from stormwater. Biochars derived from wood dust (BC0) at different pyrolytic temperatures (300, 500, and 700 °C, referred as, BC300, BC500, and BC700, respectively) were characterized and investigated for their adsorption of BPA under different pH levels and humic acid (HA) concentrations by batch sorption and fixed-bed column experiments. Microcosm biofilters vegetated with phragmites australis and amended with different biochars were constructed and used for BPA removal under different hydraulic loading rates (HLRs). Compared with other biochars, BC700 showed a high adsorption rate and capacity due to high specific surface area and pore volume. As a consequence, fixed-bed columns amended with BC700 can remove BPA more efficiently than columns with BC0, BC300, and BC500 from synthetic stormwater, though the treatment performance was affected relatively by pH change and HA concentration. A high correlation (r 2 = 0.899) between the breakthrough time and the product of adsorption rate (k 2 ) and capacity (Q max ) was found, which suggests that batch sorption experiments could be an efficient tool for prediction of breakthrough time. The BPA removal efficiency of microcosm…
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Lu and Chen (2018) observed that an increase in flow rate from 10 to 40 cm/hr decreased BPA removal by a biochar-amended sand column from 95% to 80%.
“Similarly, Lu and Chen (2018) observed that an increase in”
From Critical field evaluations of biochar-amended stormwater biofilters for PFAS and other organic micropollutant removals (2025) · cites this paper as Lu and Chen (2018)
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- Authors
- Lu, L., & Chen, B.
- Affiliations
- Zhejiang University (CN)
- Corresponding author
- Chen, Baoliang
- Venue
- Environmental Pollution
- Publisher
- Elsevier BV
- Published
- 2018-12
- Volume
- 243
- Issue
- Pt B
- Pages
- 1539-1549
- ISSN
- 0269-7491 (ISSN-L)
- OpenAlex
- W2894523168
- Cited by
- 95
- References
- 1
- Citations by year
- 2026: 6 · 2025: 11 · 2024: 13 · 2023: 14 · 2022: 12 · 2021: 17 · 2020: 11 · 2019: 11
- FWCI
- 4.27
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Environmental Pollution (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Key Research and Development Program of China (2014CB441106, 2015BAC02B01)
- National Natural Science Foundation of China (21425730, 21621005, 21537005)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Environmental Science › Environmental Engineering › Urban Stormwater Management Solutions
- Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
- Keywords
- bisphenol A, stormwater treatment, biochar, biofilter, Phragmites australis, adsorption, pyrolysis temperature, humic acid, pH effect, fixed-bed column, breakthrough time, hydraulic loading rate, endocrine disruptors, Escherichia coli removal, biochar amendment
- MeSH terms
- Bisphenol A Compounds, Adsorption, Benzhydryl Compounds, Charcoal, Escherichia coli, Filtration, Phenols, Water Purification, Endocrine Disruptors, Environmental Restoration and Remediation
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