A rotating biological contactor (RBC) offers a low energy footprint but suffers from performance instability, making it less popular for domestic wastewater treatment. This paper presents study on an RBC integrated with membrane technology in which filtration was used as post-treatment step (RBC–ME) to achieve enhanced performance. The and RBC–ME systems were operated under different hydraulic ...

The treatment of rural sewage has become an important part environmental protection. In this study, a novel waterwheel-rotating biological contactor (WRBC) system, with intensified biofilm and high-shock load resistance, was applied to treat sewage. When the COD concentration actual fluctuated between 79–530 mg/L, removal efficiency 41.3–94.5%, NH4+-N always reach 100% TN changed 14.3–86.2%, wh...

EURO-GANEX is an innovative hydrometallurgical process for the group separation of transuranic actinides from future spent nuclear fuels. A flowsheet test a upset (or ‘maloperation’) has been carried out involving reduction in concentration scrub acid feed to extract-scrub contactors. The experimental was completed two stages. First, contactors were run under normal conditions before initiating...

A network of ship-mounted marine fast-rotating shadow-band radiometers (FRSRs) and broadband radiometers have been deployed over the fast four years on several backbone ships, funded jointly by Atmospheric Radiation Measurement (ARM) and National Aeronautic and Space Administration’s (NASA’s) Sensor Intercomparison and Merger for Biological and Interdisciplinary Studies (SIMBIOS). These radiome...

The macrostructure development of biofilms grown in an annular reactor and in a rotating biological contactor has been monitored using the Spatial Gray-level Dependence Method (SGLDM) and the Gray-Level Run Length Method (GLRLM). Due to the large number of descriptors, Principal Components Analysis was used to sort the results. Both methods look promising for biofilm monitoring.

The purpose of this study was to quantify the occurrence and release of antibiotic resistant genes (ARGs) and antibiotic resistant bacteria (ARB) into the environment through the effluent and biosolids of different wastewater treatment utilities including an MBR (Membrane Biological Reactor) utility, conventional utilities (Activated Sludge, Oxidative Ditch and Rotatory Biological Contactors-RB...