title: Sequencing batch biofilter granular reactor for textile wastewater treatment.
abstract: Textile wastewater is difficult to treat as it usually contains considerable amounts of different pollutants, which are often recalcitrant, toxic and inhibitory. Therefore, complex treatment schemes based on the sequence of various steps are usually required for an effective treatment. This explains why textile effluents are often treated in centralized plants and sometimes mixed with municipal wastewater. The adoption of new technologies for on-site treatment, instead, would be optimal, deeply reducing treatment costs. An innovative technology exhibiting several characteristics appropriate for the attainment of such a goal is sequencing batch biofilter granular reactor (SBBGR). To assess the suitability of this technology, two lab-scale reactors were operated, treating mixed municipal-textile wastewater and a pure textile effluent, respectively. Results have demonstrated that mixed wastewater can be successfully treated with very low hydraulic retention times (less than 10 hours). Furthermore, SBBGR shows to be an effective pre-treatment for textile wastewater for discharge into sewer systems. The economic evaluation of the process showed operative costs of 0.10 and 0.19 € per m(3) of mixed wastewater and textile wastewater, respectively.
authors.affiliation: Department of Water Engineering and Chemistry, Politecnico di Bari, via Orabona 4, 70125 Bari, Italy. adriana.lotito@libero.it
authors.forename: Adriana Maria
authors.initials: AM
authors.lastname: Lotito
authors.forename: Claudio
authors.initials: C
authors.lastname: Di Iaconi
authors.forename: Umberto
authors.initials: U
authors.lastname: Fratino
authors.forename: Annalisa
authors.initials: A
authors.lastname: Mancini
authors.forename: Giovanni
authors.initials: G
authors.lastname: Bergna
mesh_terms: D019149:Bioreactors; D007220:Industrial Waste; D012722:Sewage / Q000737:chemistry; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000191:economics / Q000295:instrumentation* / Q000379:methods*; D014873:Water Pollutants / Q000737:chemistry; D018508:Water Purification / Q000191:economics / Q000295:instrumentation / Q000379:methods
chemical_list: D007220:Industrial Waste; D012722:Sewage; D014873:Water Pollutants