Research Abstracts

The number of slums has significantly increased in Bangladesh over the last three decades along with the expansion of cities and towns. Rapid urbanization, caused largely by heavy influx of migrants from rural areas, has exerted severe pressure on urban housing and public services in the metropolita

The phosphate mining basin of Gafsa is part of the south-western dry area of Tunisia. It covers 3250 km2, representing 42% of the entire governorate of Gafsa area and 38% of its total population. The area is characterised by water resources scarcity as well as high variability of rainfall. The water

Performances of solar photocatalytic pilot plant using TiO2-P25 (Degussa) were investigated for removal of commercial azo dye chosen as model compound. Experiments were carried out to optimize various parameters, influencing the performance of the operated thin-film fixed-bed reactor (TFFBR) with an

We investigate the potential for reactivation to restore infectivity to UV-damaged bacteriophage 2MPØ isolated from wastewater. The virus belongs to the Myoviridae family of the tailed phages. This Phage was chosen for detailed analysis, and was inspected by electron microscopy, host range determina

In this study, the performance of a combined subsurface vertical and horizontal flow constructed wetlands system, designed for rural domestic wastewaters treatment and with theoretical hydraulic retention time of 2 d and 3.6 d, respectively, was investigated. Several water quality parameters includi

This study describes the experience received in operating an SM-SBR under different hydraulic retention times for the treatment of synthetic greywater. The pilot scale SM-SBR with a working volume of VR = 500 L is operated with hydraulic retention times of 33, 24 and 12 h, and a volumetric exchange

The hydraulic residence time (HRT) is a key parameter affecting the soil aquifer treatment process (SAT) efficiency as tertiary treatment of wastewater through infiltration in vadose zone. In order to maximize the HRT, a pulsed feeding technique of a salt solution (used as conservative tracer) was a

Secondary effluents (SE) contain xenobiotic organics (XO) that may cause disturbance in living organisms. When SE are reused in agriculture, contamination of soils by XO is of concern. In this study, SE used for irrigation/aquifer recharge in Oued Souhil area (Nabeul, Tunisia), as well as effluents

Landfill leachates (LFL) collected from Djebel Chekir are highly loaded with COD ranging from 4.5 to 45 g l–1, ammonia ranging from 0.64 to 4.99 g l–1 and salts (14–32 mScm–1). They also contain high concentrations of phenols and hydrocarbons. Consequently, LFL exhibit high toxicity since they compl

Jebel Chekir landfill leachate (Tunisia) treatment was carried out using an aerobic pilot unit with three immersed and fixed biofilms reactors. A preliminary analyses indicate a high biodegradable fraction in the leachate (BOD5 / COD = 0.4), which implies that biological treatment process can be app