In a previous work, a hybrid system consisting of an advanced oxidation process (AOP) named Photo-Fenton (Ph-F) and a fixed bed biological treatment operating as a sequencing batch biofilm reactor (SBBR) was started-up and optimized to treat 200 mg ·L of 4-chlorophenol (4-CP) as a model compound. In this work, studies of reactor stability and control as well as microbial population determinatio...

Residue catalytic hydrogenation was carried out in a two-stage downflow fixed-bed reactor system, with HDM catalyst the first stage and HDS second one, to mimic industrial operation. The experiments were run at five sets of temperatures (395 °C (first reactor)/405 (second reactor), 400 °C/410 °C, 405 °C/415 410 °C/420 420 °C/430 °C). It found that initial deactivation mainly caused by rapid dep...

In the process of preparing biodiesel using microreactors, cosolvents and homogeneous catalysts are generally used, which adds to separation cost. Hence, this study explored use an opposite-side feed micro-fixed-bed reactor with inner diameter 2 mm produce by transesterification soybean oil methanol without any cosolvent, in a fixed solid base acted as catalyst obstacles. A yield 99.4% was achi...

Batik waste water is dominated by textile dyes that are recalcitrant, hydrophobic, and molecular complexes. Azo, Nitroso, Azine, Thiazolesare among synthetic used in batik industry. One of the well known white root fungus species able to degrade such Marasmiellus palmivorus. It has ability produce various enzymes as manganese peroxidase, lignin peroxidase laccase. Laccase (EC 1.10.3.2) catalyze...