Wyszukiwarka
dr Xianbao Xu
Zatrudnienie
- Profesor uczelni ze stop. nauk. dr w Katedra Inżynierii Sanitarnej
Publikacje
Filtry
wszystkich: 9
Katalog Publikacji
Rok 2025
-
Mechanistic elucidation of ultraviolet light and peracetic acid coupling-driven enhancements in short-chain fatty acid production from sludge: Reactive species-induced organic solubilization and microbial function regulation
PublikacjaThis study investigates the potential of enhancing short-chain fatty acid (SCFA) production during anaerobic fermentation of waste activated sludge through ultraviolet (UV) and peracetic acid (PAA) treatment. Under optimal conditions (UV irradiation time = 60 min and PAA dosage = 0.03 g/g VSS (volatile suspended solids), UV/PAA pretreatment enhanced sludge solubility, improved the biodegradability of organic matter, and facilitated...
-
Selective Enrichment of Partial Denitrifying Bacteria Enabling High Nitrite Production under Stepwise Elevated Salinity: Sludge Granulation and Metagenomic Mechanisms
PublikacjaThe innovative partial denitrification/anammox (PD/A) process holds significant promise for treating industrial wastewater containing nitrate, yet it may encounter the challenge of high salinity’s inhibitory impact. In this study, a nitrite-producing PD process, crucial for stable and efficient anammox, was developed. The effect of salt on performance was thoroughly assessed, and metabolic mechanisms were dissected. Results showed...
-
Steering yeast-bacteria synergy by biochar to achieve enhanced endogenous ethanol-driven chain elongation
PublikacjaThe recovery of medium-chain carboxylic acids (MCCA) from waste streams through chain elongation (CE) aligns with a circular economy concept. However, the need for electron donor (ethanol) supplements and the challenges of enriching chain-elongating bacteria have limited its application. This study adopted biochar to steer a novel yeast fungi-bacteria mixed microbiome to drive CE during food waste fermentation. The effects of hydrochar...
Rok 2024
-
A novel approach to enhance high optically active L-lactate production from food waste by landfill leachate
PublikacjaThe recycling of food waste (FW) through anaerobic fermentation into lactic acid (LA), with two isomers L-LA and D-LA, aligns with the principles of a bio-based circular economy. However, FW fermentation is often limited by competing pathways, acidification inhibition, and trace metals deficiency. This study investigates the introduction of landfill leachate, containing buffering agents (ammonia) and trace metals, into FW fermentation....
-
Enhancing chain-elongating microbiomes: Sequential fungi-bacteria cooperation for efficient food waste upgrading using endogenous electron donors
PublikacjaThe upgrading of organic waste such as food waste (FW) into medium-chain carboxylates (MCC) is within a bio-based circular economy concept. An efficient chain elongation (CE) microbiome is difficult to obtain, which normally requires long-term acclimatization and an exogenous supplement of electron donor (ED, especially ethanol). In this study, the CE microbiome was rapidly shaped within 18 days and an efficient endogenous ethanol-based...
-
Ionic liquid coupled plasma promotes acetic acid production during anaerobic fermentation of waste activated sludge: Breaking the restrictions of low bioavailable substrates and altering the metabolic activities of anaerobes
PublikacjaThis study explored the potential application of plasma coupling ionic liquid on disintegration of waste activated sludge and enhanced production of short-chain fatty acids (SCFAs) in anaerobic fermentation. Under optimal conditions (dosage of ionic liquid [Emim]OTf = 0.1 g/g VSS (volatile suspended solids) and discharge power of dielectric barrier discharge plasma (DBD) = 75.2 W), the [Emim]OTf/DBD pretreatment increased SCFA...
-
Microplastics in water resources: Global pollution circle, possible technological solutions, legislations, and future horizon
PublikacjaBeneath the surface of our ecosystems, microplastics (MPs) silently loom as a significant threat. These minuscule pollutants, invisible to the naked eye, wreak havoc on living organisms and disrupt the delicate balance of our environment. As we delve into a trove of data and reports, a troubling narrative unfolds: MPs pose a grave risk to both health and food chains with their diverse compositions and chemical characteristics....
-
Removal of nitrogen from wastewater: Unsolved problems and possible solutions with partial denitrification/anammox systems
PublikacjaAbstract Nitrate (NO3−) is more stable than ammonia (NH4+) and nitrite (NO2−) among the majority of emerging pollutants in wastewater that can harm the ecosystem by depleting oxygen and water quality, thereby posing environmental and human health risks. Despite anaerobic ammonium oxidation (anammox) being a common method for nitrogen (N) removal from wastewater, it leaves behind residual NO3− of around 11 %. Maintaining the stability...
-
Sulfur cycle, a new opportunity for nitrogen removal from textile wastewater: A review
PublikacjaThe problem of nitrogen removal from textile wastewater (TW) has plagued for quite a long time. Traditional biological nitrogen removal technology is limited by the complex water quality characteristics, and high concentration of sulfate (over 5000 mg/L) further aggravates its difficulty. After analyzing source and characteristics of nitrogen and sulfur in TW, using miraculous sulfur cycle caused by the existing sulfate to solve...
wyświetlono 538 razy