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This Special Issue focused on innovative solutions for the biological treatment of organic waste from wastewater. In particular, research articles included in this SI are related to: Process mechanisms and operation, optimization, monitoring, modeling, and applications; Removal of pathogens and emerging pollutants; Reuse and circular economy; Resource recovery (e.g., nutrients recovery, high-value compounds) and energy valorization (e.g., biogas); Life cycle assessment and carbon footprint; Technoeconomic assessment and social perception of waste-to-resource processes; Low-cost technologies; Policy. Overall, this SI provides new ways to valorize organic waste from wastewater and describe novel processes as well as the environmental and social benefits in the frame of the Sustainable Development Goals.

Technology: general issues --- History of engineering & technology --- synthetic microbial community --- ammonium --- heterotrophic nitrification --- aerobic denitrification --- livestock wastewater --- anaerobic co-digestion --- food wastes --- waste-activated sludge --- nano magnetite --- iron oxide nano particles --- nano zero valent iron --- sewage sludge --- nano particles --- organic wastes --- anaerobic digestion (AD) --- biogas --- life cycle assessment (LCA) --- methane --- waste activated sludge (WAS) --- wastewater treatment plant (WWTP) --- anaerobic digestion acceptance --- structural equation model --- energy policy --- sustainable energy technology --- rural development --- mesophilic --- thermophilic --- temperature-phased anaerobic digestion (TPAD) --- dewaterability --- sludge quality --- sludge valorisation --- synthetic microbial community --- ammonium --- heterotrophic nitrification --- aerobic denitrification --- livestock wastewater --- anaerobic co-digestion --- food wastes --- waste-activated sludge --- nano magnetite --- iron oxide nano particles --- nano zero valent iron --- sewage sludge --- nano particles --- organic wastes --- anaerobic digestion (AD) --- biogas --- life cycle assessment (LCA) --- methane --- waste activated sludge (WAS) --- wastewater treatment plant (WWTP) --- anaerobic digestion acceptance --- structural equation model --- energy policy --- sustainable energy technology --- rural development --- mesophilic --- thermophilic --- temperature-phased anaerobic digestion (TPAD) --- dewaterability --- sludge quality --- sludge valorisation

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This Special Issue focused on innovative solutions for the biological treatment of organic waste from wastewater. In particular, research articles included in this SI are related to: Process mechanisms and operation, optimization, monitoring, modeling, and applications; Removal of pathogens and emerging pollutants; Reuse and circular economy; Resource recovery (e.g., nutrients recovery, high-value compounds) and energy valorization (e.g., biogas); Life cycle assessment and carbon footprint; Technoeconomic assessment and social perception of waste-to-resource processes; Low-cost technologies; Policy. Overall, this SI provides new ways to valorize organic waste from wastewater and describe novel processes as well as the environmental and social benefits in the frame of the Sustainable Development Goals.

Technology: general issues --- History of engineering & technology --- synthetic microbial community --- ammonium --- heterotrophic nitrification --- aerobic denitrification --- livestock wastewater --- anaerobic co-digestion --- food wastes --- waste-activated sludge --- nano magnetite --- iron oxide nano particles --- nano zero valent iron --- sewage sludge --- nano particles --- organic wastes --- anaerobic digestion (AD) --- biogas --- life cycle assessment (LCA) --- methane --- waste activated sludge (WAS) --- wastewater treatment plant (WWTP) --- anaerobic digestion acceptance --- structural equation model --- energy policy --- sustainable energy technology --- rural development --- mesophilic --- thermophilic --- temperature-phased anaerobic digestion (TPAD) --- dewaterability --- sludge quality --- sludge valorisation --- n/a

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• Reference Manager
• EndNote
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Biomass can be used as feedstock for the production of biomaterials, chemicals, platform molecules and biofuels. It is the most reliable alternative to reduce fossil fuel consumption and greenhouse gas emissions. Within the framework of the circular economy, resource recovery from organic waste, including sewage sludge, biowaste, manure and slaughterhouse waste, is particularly useful, as it helps saving resources while reducing environmental pollution. In contrast to energy crops, lignocellulosic biomass and algae do not compete for food production; therefore, they represent an important source of biomass for bioenergy and bioproducts. However, biomass may require a pretreatment step in order to enhance its conversion into valuable products in terms of process yield and/or productivity. Furthermore, a pretreatment step may be mandatory for waste management (i.e., animal by-products).Pretreatment technologies are applied upstream of various conversion processes of biomass into biofuels or biomaterials, including bioethanol, biohydrogen, biomethane, biomolecules or bioproducts. Pretreatments may include mechanical, thermal, chemical and biological techniques, which represent a crucial, cost-intensive step for the development of biorefineries. Thus, research is needed to help identify the most effective, economic, and environmentally friendly pretreatment options for each feedstock. This Special Issue aims to gather recent developments of biomass pretreatments for bioproduct and biofuel production.

Technology: general issues --- biomass --- valorisation --- ionic liquid --- crystallinity --- enzymatic hydrolysis --- pre-treatment --- acidogenic fermentation --- hydrothermal treatment --- source separated organics --- volatile fatty acids --- particulate organics solubilization --- microbial community analysis --- Pennisetum alopecuroides --- dilute alkaline pretreatment --- ferric chloride pretreatment --- bioethanol --- biomethane --- citrus peel waste --- biorefinery --- biorefinery residues --- ADM1 --- anaerobic digestion --- aqueous ammonia soaking pre-treatment --- continuous --- digested manure fibers --- modelling --- acetic acid --- butyric acid --- HRT --- pH --- propionic acid --- steam treatment --- pretreatment --- lignocellulose --- biochemical methane potential --- lithium --- sugarcane bagasse --- saccharification --- glycosyl-hydrolase --- ToF-SIMS --- surface ion distribution --- second-generation ethanol --- microwave pretreatment --- grass biomass --- p-hydroxycinnamic acids extraction --- lignocellulosic biomass --- NaOH pretreatment --- bioreactor experiments --- inhibition --- grass lawn waste --- whole slurry --- separated fractions --- alkali --- acid --- energy balance --- economical assessment --- municipal sludge --- thermal pretreatment --- microwave --- contaminants of emerging concern --- personal care products --- antimicrobial disinfectants --- triclosan --- ultra-high performance liquid chromatography --- tandem mass spectrometry --- biogas production --- fruit and vegetable harvesting wastes --- process optimization --- thermo chemical pretreatment --- biogas yield --- waste activated sludge --- electro-Fenton --- disintegration --- dewaterability --- mechanical pretreatments --- agricultural wastes --- rheology --- physical properties --- biomass --- valorisation --- ionic liquid --- crystallinity --- enzymatic hydrolysis --- pre-treatment --- acidogenic fermentation --- hydrothermal treatment --- source separated organics --- volatile fatty acids --- particulate organics solubilization --- microbial community analysis --- Pennisetum alopecuroides --- dilute alkaline pretreatment --- ferric chloride pretreatment --- bioethanol --- biomethane --- citrus peel waste --- biorefinery --- biorefinery residues --- ADM1 --- anaerobic digestion --- aqueous ammonia soaking pre-treatment --- continuous --- digested manure fibers --- modelling --- acetic acid --- butyric acid --- HRT --- pH --- propionic acid --- steam treatment --- pretreatment --- lignocellulose --- biochemical methane potential --- lithium --- sugarcane bagasse --- saccharification --- glycosyl-hydrolase --- ToF-SIMS --- surface ion distribution --- second-generation ethanol --- microwave pretreatment --- grass biomass --- p-hydroxycinnamic acids extraction --- lignocellulosic biomass --- NaOH pretreatment --- bioreactor experiments --- inhibition --- grass lawn waste --- whole slurry --- separated fractions --- alkali --- acid --- energy balance --- economical assessment --- municipal sludge --- thermal pretreatment --- microwave --- contaminants of emerging concern --- personal care products --- antimicrobial disinfectants --- triclosan --- ultra-high performance liquid chromatography --- tandem mass spectrometry --- biogas production --- fruit and vegetable harvesting wastes --- process optimization --- thermo chemical pretreatment --- biogas yield --- waste activated sludge --- electro-Fenton --- disintegration --- dewaterability --- mechanical pretreatments --- agricultural wastes --- rheology --- physical properties