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Eau usée --- Wastewater --- Nitrate d'ammonium --- Ammonium nitrate --- Dénitrification --- Denitrification --- Nitrification --- Oxydation --- Oxidation --- Bioréacteur --- Bioreactors --- Anaérobiose --- Anaerobiosis --- Modèle de simulation --- Simulation models --- Theses --- Sciences and engineering --- physical sciences --- applied sciences --- engineering --- chemical --- earth and environmental sciences --- environmental sciences --- environmental --- chemical. --- environmental sciences. --- environmental. --- Denitrification. --- Sharon process --- Oland process --- Anammox --- Earth and environmental sciences --- Environmental sciences. --- Physical sciences --- Applied sciences --- Engineering --- Chemical. --- Environmental.

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This Special Issue aims to highlight the dual potential of novel biocatalytic processes, where the first part is dedicated to waste valorization for the production of high value products, while the second part is focused on the detoxification of pollutants. Several examples of microbial systems employed for the valorization of waste streams derived by the forest, agricultural, and food industries or the use of whole-cell or enzyme approaches for the removal of nitrogen or dyes from industrial wastewaters are provided. Last but not least, an example of the utilization of polyhydroxyalkanoates (PHAs) was highlighted for the production of fatty acids, which were used for the enzymatic synthesis of sugar esters with antimicrobial properties.

Technology: general issues --- mixotrophic --- heterotrophic --- lipids --- fatty acid methyl esters --- dairy wastewater --- birch hydrolysate --- green algae --- Coelastrella --- Chlorella --- DyP peroxidase --- oxidoreductase --- reactive dye --- decolorization --- biopolymers --- medium chain length polyhydroxyalkanoates (PHA) --- hydrolysed waste cooking oil --- Pseudomonas putida KT2440 --- biocatalysis --- bioprocess --- polyhydroxyalkanoate --- (R)-3-hydroxyacids --- sugar esters --- antimicrobial --- anammox --- immobilization --- wastewater treatment --- polyvinyl alcohol --- olive mill waste --- lignocellulosic residues --- Ganoderma lucidum --- Pleurotus ostreatus --- medicinal mushrooms --- glucan --- prebiotic --- Lactobacillus --- Bifidobacterium --- waste valorization --- laccase --- genome-mining --- heterologous expression --- Pseudomonas --- non-digestible oligosaccharides --- Celluclast® --- cellobiose --- conduritol-B-epoxide --- lignocellulose enzyme hydrolysis --- n/a

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This Special Issue aims to highlight the dual potential of novel biocatalytic processes, where the first part is dedicated to waste valorization for the production of high value products, while the second part is focused on the detoxification of pollutants. Several examples of microbial systems employed for the valorization of waste streams derived by the forest, agricultural, and food industries or the use of whole-cell or enzyme approaches for the removal of nitrogen or dyes from industrial wastewaters are provided. Last but not least, an example of the utilization of polyhydroxyalkanoates (PHAs) was highlighted for the production of fatty acids, which were used for the enzymatic synthesis of sugar esters with antimicrobial properties.

mixotrophic --- heterotrophic --- lipids --- fatty acid methyl esters --- dairy wastewater --- birch hydrolysate --- green algae --- Coelastrella --- Chlorella --- DyP peroxidase --- oxidoreductase --- reactive dye --- decolorization --- biopolymers --- medium chain length polyhydroxyalkanoates (PHA) --- hydrolysed waste cooking oil --- Pseudomonas putida KT2440 --- biocatalysis --- bioprocess --- polyhydroxyalkanoate --- (R)-3-hydroxyacids --- sugar esters --- antimicrobial --- anammox --- immobilization --- wastewater treatment --- polyvinyl alcohol --- olive mill waste --- lignocellulosic residues --- Ganoderma lucidum --- Pleurotus ostreatus --- medicinal mushrooms --- glucan --- prebiotic --- Lactobacillus --- Bifidobacterium --- waste valorization --- laccase --- genome-mining --- heterologous expression --- Pseudomonas --- non-digestible oligosaccharides --- Celluclast® --- cellobiose --- conduritol-B-epoxide --- lignocellulose enzyme hydrolysis --- n/a

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This book examines the state-of-the-art water and wastewater treatment methods that can be applied to develop a sustainable treatment technique in the future. Of the several high-quality articles submitted, twelve were published after the peer-review process, with an acceptance rate of 59 percent. In the first section of this book, the articles include the occurrence and removal of emerging contaminants in water bodies. Moreover, the presence of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in water sources is discussed in detail. Subsequently, the removal of polycyclic aromatic hydrocarbons (PAHs), pharmaceuticals and personal care products (PPCPs), and dye with different physicochemical methods is investigated. In another section of this book, the removal of ammonia with anaerobic ammonium oxidation (anammox) is studied. Additionally, the elimination of heavy metals using the adsorption process, as an effective method, is discussed. Moreover, the performance of membrane bioreactors in the elimination of pollutants from landfill leachate is investigated in another article in this book. In addition to this, green and sustainable wastewater technologies (GSWTs) have recently attracted the attention of researchers. Therefore, nanoremediation and microalgae-based systems are discussed as the GSWTs.

Technology: general issues --- History of engineering & technology --- natural coagulant --- production --- characterisation --- application --- microalgae harvesting --- cost analysis --- coagulation and flocculation --- chitosan --- powder activated carbon --- hexadecylamine --- hybrid adsorbent --- regeneration --- Fe (VI) oxidation --- chemical oxygen demand --- polycyclic aromatic hydrocarbons --- central composite design --- RSM --- poly-fluoroalkyl substances (PFASs) --- toxicology --- PFAS health risk --- regulatory values --- anaerobic ammonium oxidation (anammox) --- Patescibacteria --- Candidate phyla radiation --- Candidatus Brocadia sinica --- Candidatus Jettenia caeni --- metagenomic analysis --- biological nitrogen removal --- wastewater treatment --- chromium --- functional groups --- isotherm --- rice husk --- anthropogenic substances --- disinfection --- wastewater --- poultry slaughterhouse wastewater --- microfiltration --- ultrafiltration --- nanofiltration --- reverse osmosis --- environmental ecotoxicity --- nanoremediation --- nZVI --- CNTs --- remediation process --- soil remediation --- stabilized leachate --- membrane fabrication --- filtration technology --- phase inversion technique --- powdered activated carbon (PAC) --- bio-membrane --- multi-integrated system --- expanded granular bed reactor --- anaerobic digestion --- activated sludge --- membrane bioreactor --- natural coagulation --- chemical coagulation --- pharmaceuticals --- Moringa oleifera --- green treatment technology --- n/a

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Anaerobic digestion (AD) is one of the oldest biotechnological processes and originally referred to biomass degradation under anoxic conditions in both natural and engineered systems. It has been used for decades to treat various waste streams and to produce methane-rich biogas as an important energy carrier, and it has become a major player in electrical power production. AD is a popular, mature technology, and our knowledge about the influencing process parameters as well as about the diverse microbial communities involved in the process has increased dramatically over the last few decades. To avoid competition with food and feed production, the AD feedstock spectrum has constantly been extended to waste products either rich in recalcitrant lignocellulose or containing inhibitory substances such as ammonia, which requires application of various pre-treatments or specific management of the microbial resources. Extending the definition of AD, it can also convert gases rich in hydrogen and carbon dioxide into methane that can substitute natural gas, which opens new opportunities by a direct link to traditional petrochemistry. Furthermore, AD can be coupled with emerging biotechnological applications, such as microbial electrochemical technologies or the production of medium-chain fatty acids by anaerobic fermentation. Ultimately, because of the wide range of applications, AD is still a very vital field in science. This Special Issue highlights some key topics of this research field.

Research & information: general --- Biology, life sciences --- anaerobic digestion --- solid digestate --- milling process --- sugars recovery --- energy balances --- bioethanol production --- biogas upgrading --- biomethane --- bio-succinic acid --- CO2 utilization --- feasibility assessment --- acetate --- lactate --- inoculum --- food waste --- sewage sludge --- lactic acid bacteria --- cattle manure --- steam explosion --- pre-treatment --- UASB --- co-digestion --- biogas --- high-rate anaerobic digestion --- energy recovery --- granular sludge --- renewable energy --- decentralized wastewater treatment --- two-stage anaerobic digestion --- Anammox --- enzyme application --- rheology of digestate --- methane --- aquaculture --- trout --- sludge --- wastewater --- drum sieve --- microfiltration --- settling --- waste-to-energy --- wet waste --- bioenergy --- techno-economic analysis --- ammonia inhibition --- chicken manure --- dairy cow manure --- high-solids anaerobic digestion --- inoculum adaptation --- volatile fatty acids --- dry batch anaerobic digestion --- percolation --- permeability --- Salmonella spp. --- Escherichia coli O157 --- Listeria monocytogenes --- Enterococcus faecalis --- Clostridium spp. --- digestate --- pathogens --- sustainable farming --- anaerobic digester --- antibiotics removal --- antimicrobial --- chlortetracycline --- Tylosin --- n/a