title: [Study on the start-up of the anaerobic baffled reactor for treating alkali-deweighting and dyeing-printing wastewater].
abstract: The start-up of treating alkali-deweighting and dyeing-printing wastewater by anaerobic baffled reactor (ABR) was investigated. Through seeding with the anaerobic granular sludge, the start-up with low organic loading was started by using artificial alkali-deweighing and dyeing wastewater as influent with the condition of temperature 32 degrees C-35 degrees C and pH 7.8-8.3. After continuously running 70 days, the start-up had been completed to reach the stabilization. The results showed that the pH of effluent kept stable around 7.3 and the average COD removal rate was up to 78% while the average volume loading rate was 1.93 kg x (mm3 x d)(-1). After the start-up, a separating function of each compartment was observed and meanwhile the anaerobic granular sludge with good properties was achieved. Relative to the start, the size of granular sludge particle was increased and the sludge sedimentation performance became better and the value of f (MLVSS/MLSS) was up to 0.65 at the end of the experiment. In addition, high activity of the microorganism was observed that the average value of dehydrogenase activity (DHA) with TF expression and the coenzyme F420 concentration were x (g x h)(-1) and 0.18 micromol x g(-1), respectively.
authors.affiliation: College of Environmental Science & Engineering, Donghua University, Shanghai 201620, China. yangbo@dhu.edu.cn
authors.forename: Bo
authors.initials: B
authors.lastname: Yang
authors.forename: Qi-Jun
authors.initials: QJ
authors.lastname: Zhong
authors.forename: Fang
authors.initials: F
authors.lastname: Li
authors.forename: Qing
authors.initials: Q
authors.lastname: Tian
mesh_terms: D001421:Bacteria, Anaerobic / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology; D007220:Industrial Waste; D054712:Salinity; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D007220:Industrial Waste