Textile dyeing wastewater treatment in a sequencing batch reactor system.
This study was undertaken to examine the feasibility of treating biologically textile wastewater for organic carbon removal. The study was conducted over a lab scale SBR equipped with an in-house developed data acquisition and control software. From monitored operation of SBR and dissolved oxygen values, together with a simple compressed air ON/OFF control scheme, on-line Oxygen Uptake Rate (OUR) profiles during aerobic reaction periods were obtained. Due to the high variability of wastewater characteristics, periodical analyses of textile wastewater were conducted and thus characterized for pH, conductivity, total and volatile solids, COD, ammonia, and TKN. After an initial period of activated sludge adaptation to textile wastewater, the SBR was operated at step-feed strategy to reduce the effluent biodegradable matter presents in the wastewater by SBR water change ratio modification and feeding strategy.
Vives
M T
MT
Laboratori d'Enginyeria Química i Ambiental, Department EQATA, Universitat de Girona, Campus Montilivi, Girona, Spain. teia.vives@lequia.udg.es
Balaguer
M D
MD
García
S
S
García
R
R
Colprim
J
J
D001331:Automation; D001673:Biodegradation, Environmental; D019149:Bioreactors; D002244:Carbon / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D012984:Software; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods*; D014867:Water / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
D014867:Water; D002244:Carbon