title: Acid soluble bio-organic substances isolated from urban bio-waste. Chemical composition and properties of products.
abstract: As previous work proposed commercial expectations for soluble bio-organic substances (SBO) isolated from compost of urban food, gardening and park trimming residues as chemical auxiliaries, nine urban bio-wastes (BW) treated by aerobic and anaerobic digestion for 0-360 days were used to extract SBO and investigate source variability effects on product chemical composition and properties. The bio-wastes were collected over a 13732 km(2) area populated by 2.9 millions from 565 municipalities. The SBO were characterized by their content of different C types and functional groups and by their distribution coefficient (K(PEGW)) between polyethylene glycol and water. A significant linear correlation was found between K(PEGW) and the lipophilic/hydrophilic C ratio. The investigated SBO exhibited up to sixfold change of K(PEGW) demonstrating that BW available from densely populated urban areas are an interesting exploitable source of a wide variety of potential products for the chemical market.
authors.affiliation: Dipartimento di Chimica Generale e Chimica Organica, Università di Torino, C. M. D'Azeglio 48, 10125 Torino, Italy. enzo.montoneri@unito.it
authors.forename: Enzo
authors.initials: E
authors.lastname: Montoneri
authors.forename: Vittorio
authors.initials: V
authors.lastname: Boffa
authors.forename: Piero
authors.initials: P
authors.lastname: Savarino
authors.forename: Daniele
authors.initials: D
authors.lastname: Perrone
authors.forename: Marzia
authors.initials: M
authors.lastname: Ghezzo
authors.forename: Corrado
authors.initials: C
authors.lastname: Montoneri
authors.forename: Raniero
authors.initials: R
authors.lastname: Mendichi
mesh_terms: D000143:Acids / Q000737:chemistry; D000332:Aerobiosis; D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D005735:Garbage; D009930:Organic Chemicals / Q000737:chemistry* / Q000302:isolation & purification; D012037:Refuse Disposal; D012987:Soil / Q000737:chemistry; D012995:Solubility; D014866:Waste Products / Q000032:analysis* / Q000706:statistics & numerical data
chemical_list: D000143:Acids; D009930:Organic Chemicals; D012987:Soil; D014866:Waste Products