title: Conceptual analysis of the UASB/polishing pond system regarding the removal of surfactants, micropollutants and control of gaseous emissions.
abstract: A conceptual and integrated analysis of the UASB/Polishing Pond system is presented in relation to the removal of specific constituents not normally covered in the pond's literature, namely surfactants (linear alkylbenzene sulphonate, LAS), micropollutants (phthalates and bisphenol A) and sulfide. Experimental studies carried out on a small full-scale UASB/PP system have shown limited overall removal efficiencies for some constituents (53% to 70% for phthalates and 50% for LAS), but excellent removal levels for bisphenol A (around 99%) and sulfide (no trace concentrations were detected in the second and third ponds of the series). Further research is needed to investigate possible limitations and to identify means to improve the performance of the UASB/PP system.
authors.affiliation: Federal University of Minas Gerais, Belo Horizonte, Brazil. calemos@desa.ufmg.br
authors.forename: C A L
authors.initials: CA
authors.lastname: Chernicharo
authors.forename: S F
authors.initials: SF
authors.lastname: Aquino
authors.forename: M V
authors.initials: MV
authors.lastname: Sperling
authors.forename: R M
authors.initials: RM
authors.lastname: Stuetz
authors.forename: L V
authors.initials: LV
authors.lastname: Santos
authors.forename: M O A
authors.initials: MO
authors.lastname: Mabub
authors.forename: M A
authors.initials: MA
authors.lastname: Moreira
authors.forename: O M S R
authors.initials: OM
authors.lastname: Vasconcelos
authors.forename: R M
authors.initials: RM
authors.lastname: Glória
mesh_terms: D017738:Alkanesulfonic Acids / Q000302:isolation & purification; D000693:Anaerobiosis; D001559:Benzhydryl Compounds; D001673:Biodegradation, Environmental; D019149:Bioreactors; D004867:Equipment Design; D005618:Fresh Water; D005740:Gases; D006862:Hydrogen Sulfide / Q000737:chemistry; D010636:Phenols / Q000302:isolation & purification; D010795:Phthalic Acids / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry / Q000302:isolation & purification; D013501:Surface-Active Agents / Q000737:chemistry / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D000098826:Bisphenol A Compounds
chemical_list: D017738:Alkanesulfonic Acids; D001559:Benzhydryl Compounds; D005740:Gases; D006862:Hydrogen Sulfide; D010636:Phenols; D010795:Phthalic Acids; D013440:Sulfides; D013501:Surface-Active Agents; D014874:Water Pollutants, Chemical; C030641:alkylbenzyl sulfonic acid; C032279:phthalic acid; C006780:bisphenol A; D000098826:Bisphenol A Compounds