Organic Matter Accumulation and Hydrology as Drivers of Greenhouse Gas Dynamics in Newly Developed Artificial Channels DOI
Lorenzo Rovelli, Clara Mendoza‐Lera, Alessandro Manfrin

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(19), С. 8360 - 8371

Опубликована: Май 3, 2024

Artificial channels, common features of inland waters, have been suggested as significant contributors to methane (CH4) and carbon dioxide (CO2) dynamics emissions; however, the magnitude drivers their CH4 CO2 emissions (diffusive ebullitive) remain unclear. They are characterized by reduced flow compared donor river, which results in suspended organic matter (OM) accumulation. We propose that such systems hydrological controls will be OM accumulation control promoting production outgassing. Here, we monitored summertime concentrations on six newly constructed river-fed artificial from bare riparian mineral soil lotic under two distinct regimes. Chamber-based fluxes were complemented with hydrology, total (diffusion + ebullition), assessments. During first 6 weeks after flooding, inflowing riverine water dominated over in-channel contributions. Afterwards, a substantial (≥50% channel's volume) boosted led widespread ebullition 10× higher than diffusive fluxes, regardless regime. Our finding suggests dominant pathway these anthropogenic systems, thus, impact regional might largely underestimated.

Язык: Английский

Progress in agricultural waste derived biochar as adsorbents for wastewater treatment DOI Creative Commons
Omojola Awogbemi, Daramy Vandi Von Kallon

Applied Surface Science Advances, Год журнала: 2023, Номер 18, С. 100518 - 100518

Опубликована: Дек. 1, 2023

The wastewater generated from diverse human activities needs to be treated, restore, and reused. Researchers have moved the deployment of synthetic absorbents manufacturing adsorbents waste biomass for elimination contaminants wastewater. biochar constructed agricultural has elicited significant devotion due its ready availability, accessibility, low cost, ease preparation, environmental sustainability. This review presents developments in utilization obtained remediation domestic wastewater, industrial stormwater. Discussions on classification, composition, characteristics waste, techniques production, as well outcomes decontamination were highlighted. study concludes that, notwithstanding identified environmental, social, economic, infrastructural challenges, is an effective, efficient, easy use, eco-friendly adsorbent Agricultural waste-derived removes safeguards aquatic ecosystem contributes availability safe water. Future research directions innovative more effective avenues application developed treatment are suggested. outcome this will stimulate renewed interests using readily available materials remediation.

Язык: Английский

Процитировано

18

Organic Matter Accumulation and Hydrology as Drivers of Greenhouse Gas Dynamics in Newly Developed Artificial Channels DOI
Lorenzo Rovelli, Clara Mendoza‐Lera, Alessandro Manfrin

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(19), С. 8360 - 8371

Опубликована: Май 3, 2024

Artificial channels, common features of inland waters, have been suggested as significant contributors to methane (CH4) and carbon dioxide (CO2) dynamics emissions; however, the magnitude drivers their CH4 CO2 emissions (diffusive ebullitive) remain unclear. They are characterized by reduced flow compared donor river, which results in suspended organic matter (OM) accumulation. We propose that such systems hydrological controls will be OM accumulation control promoting production outgassing. Here, we monitored summertime concentrations on six newly constructed river-fed artificial from bare riparian mineral soil lotic under two distinct regimes. Chamber-based fluxes were complemented with hydrology, total (diffusion + ebullition), assessments. During first 6 weeks after flooding, inflowing riverine water dominated over in-channel contributions. Afterwards, a substantial (≥50% channel's volume) boosted led widespread ebullition 10× higher than diffusive fluxes, regardless regime. Our finding suggests dominant pathway these anthropogenic systems, thus, impact regional might largely underestimated.

Язык: Английский

Процитировано

1