ArticleBiodegradation2026
Sustainable activated biochar as a high-performance adsorbent/filter for effective p-nitrophenol (PNP) sequestration from wastewater.
Article in Biodegradation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
An activated sugarcane bagasse biochar (ASCBB) was used for constructing a filter module to remove p-nitrophenol (PNP) from contaminated water to introduce applicable tools for remediating pollutants. The PNP adsorption on the ASCBB filter was studied at different flow rates, pollutant dose levels, and ASCBB amounts. The PNP adsorption efficiency of ASCBB was evaluated and compared with its raw precursor, sugarcane bagasse (SCB). Furthermore, the reusability and regeneration potential of the ASCBB filter were investigated to ensure its long-term efficacy in removing PNP from aqueous solutions. A one-gram ASCBB filter achieved 94.98% removal of 50 mg/L PNP at a flow rate of 2 mL/min. Increasing the ASCBB adsorbent amount from 1 to 2 g improved the removal of 500 mg/L PNP from 75.96% to 92.84% at 2 mL/min. Furthermore, the two-gram ASCBB filter can remove 85.60% of high tested concentration (1000 mg/L) of PNP when pursuing a flow rate of 2 ml/min. The results indicate that the ASCBB filter (2 gm) demonstrated good reusability by retaining 113 mg out of 150 mg of PNP after five separate cycles without regeneration. The ASCBB filter was restored completely after a simple regeneration process to be capable of retaining 68.2 mg out of 90 mg of PNP after three cycles without any further regeneration. This finding proved that the ASCBB filter can be used as a promising, sustainable, and reusable filter for removing the PNP from contaminated water.
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