Characteristics and performance of aerobic granular sludge treating rubber wastewater at different hydraulic retention time

Bio-augmented submerged membrane bioreactor as an effective application for treatment of biologically pretreated coal gasification wastewater

“…Previous studies indicated that an optimum HRT should be judiciously selected to achieve optimization of the reactor performance . During the experiments, HRT exerted a profound influence on the hydraulic conditions and contact time between activated sludge and reactants within the reactor . It has been further demonstrated that HRT could significantly affect the membrane fouling rate …”

“…21,22 During the experiments, HRT exerted a profound influence on the hydraulic conditions and contact time between activated sludge and reactants within the reactor. 23 It has been further demonstrated that HRT could significantly affect the membrane fouling rate. 24,25 Figure 4(a) shows that COD removal was not improved until HRT was increased to 20 h and the efficiency stayed between 39 and 49%.…”

Treatment of dyeing wastewater by MIC anaerobic reactor

“…And the SS concentration increased from 66.1 to 75.9 g/L, while the SVI decreased from 11.3 to 9.4 mL/g. The increasing size of the granular sludge resulted in a higher settling ability of sludge and decreased SVI [23]. According to the SEM image, the surface of granular sludge was rough and had many deep holes, which were regarded as channels for supplying nutrients to microbes, discharging metabolic waste, and releasing the internal microbial metabolism gas.…”

Performance of aerobic granular sludge in a sequencing batch bioreactor for slaughterhouse wastewater treatment

“…However, reports of successful aerobic granulation system were mainly focused on readily biodegradable synthetic wastewater (Nancharaiah and Venugopalan, 2011). Information on application of aerobic granules for the treatment of refractory wastewaters with high-strength ammonium, like phenol wastewater (Adav et al, 2007), agro-based wastewater (Abdullah et al, 2011), livestock wastewater (Othman et al, 2013), rubber wastewater (Rosman et al, 2014) and domestic wastewater (Coma et al, 2012) is still very initiated, even though biological treatment of these wastewaters has been practiced for http://dx.doi.org/10.1016/j.biortech.2015.03.008 0960-8524/Ó 2015 Elsevier Ltd. All rights reserved. a number of years.…”