Plastic is commonly used as biofilter media in recirculating aquaculture systems. Because plastic relatively expensive and may erode emit microplastics to the environment, efforts are being made test develop more sustainable materials. Five alternative locally available were compared with commercial evaluated duplicate 1 m3 two pilot scale Recirculation system. Ammonium chloride sodium nitrite ...

The discharge of septic tank effluent onto highly permeable soils may lead to nutrients entering the groundwater or flowing laterally from the site to pollute local streams. Seven domestic dwellings in a small village in northern New South Wales (NSW) were refurbished with new septic tank systems, and individual on-site land application systems were constructed to reduce the high risks of conta...

Background and objective: Among multi-use facilities, underground subway stations are vulnerable areas where total management of particulate matter (PM) has been implemented through the Seasonal PM Management System. Through friction between train wheels railsthat occurs stations, iron oxide particles generated, which can cause various diseases in human body. This study aims to explore applicat...

This study compares the removal of a mixture of benzene, toluene, ethylbenzene, and all three xylene isomers (BTEX) in mesophilic and thermophilic (50 degrees C) bioreactors. In the mesophilic reactor fungi became dominant after long-term operation, while bacteria dominated in the thermophilic unit. Microbial acclimation was achieved by exposing the biofilters to initial BTEX loads of 2-15 g m(...

BACKGROUND: Biofilters are efficient systems for treating malodorous emissions. The mechanism involved during pollutant transfer and subsequent biotransformation within a biofilm is a complex process. The use of artificial neural networks to model the performance of biofilters using easily measurable state variables appears to be an effective alternative to conventional phenomenological modelli...