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Description: Separate Adsorption of Nutrients and Pharmaceuticals from Source-separated Human...
Separate Adsorption of Nutrients and Pharmaceuticals from Source-separated Human Urine
Abstract
This study examined the potential of biochar for the separate adsorption of nutrients (ammonia and phosphate) and pharmaceuticals from source-separated human urine. Batch adsorption experiments were conducted sequentially using Pinecone biochar pyrolyzed at 200°C (PC200) and sewage sludge biochar pyrolyzed at 700°C (SS700). PC200 biochar was selected to recover nutrients only and SS700 biochar was for the removal of pharmaceuticals only. The results showed that pristine biochar was ineffective for separate adsorption of nutrients and pharmaceuticals. Both PC200 and SS700 biochar effectively removed more than 50% of pharmaceuticals except SMX at acidic pH (pH ≤ 3). For nutrients, the removal of ammonia was around 30% at pH 3 and 9, and phosphate removal was more prominent (> 75%) at pH 9.
This study examined the potential of biochar for the separate adsorption of nutrients (ammonia and phosphate) and pharmaceuticals from source-separated human urine. Batch adsorption experiments were conducted sequentially using two different biochar. Recovery of nutrients and applying the nutrient-rich biochar as an organic fertilizer in agricultural fields can reduce the widespread use of synthetic chemical fertilizers. The separate extraction of pharmaceuticals is beneficial in a way that contaminants get removed at the source before they are diluted by other wastewater streams. In addition, the approach mitigates the introduction of pharmaceuticals to the environment through land applications of nutrient-rich biochars.
SpeakerMasrura, Sayeda Ummeh
Presentation time
16:20:00
16:40:00
Session time
16:00:00
17:30:00
SessionKeeping the Taste of Your Own Medicine Out of Water
Session number318
TopicMicroconstituents
TopicMicroconstituents
Author(s)
Sayeda Ummeh Masrura
Author(s)S. Masrura1; E. Khan1;
Author affiliation(s)Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV1
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2021
DOI10.2175/193864718825158071
Volume / Issue
Content sourceWEFTEC
Copyright2021
Word count11

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