Research Abstracts

Autotrophic nitrifiers and heterotrophic bacteria are all oxygen-consuming bacteria. In conventional active sludge, nitrification activities decrease dramatically with increasing COD and ammonia loading rate, as the presence of a large amount of carbonaceous substrates often prevents oxygen being us

The water characterisation is generally challenging regarding the pre-treatment operation up-stream reverse osmosis. The classical parameters are not applicable due to analytical limitations, and/or the sensibility of those parameters is too low compared to the water fluctuation behaviour measured o

Tests of the biodegradation of the azo dyes Reactive Black 5 and Reactive Yellow 145 confirmed the low biodegradability of these components in the considered conditions, namely a strain of Pseudomonas fluorescens, cultivated at 25°C, an initial pH of 7 and in presence of a supplementary carbon sourc

The CO2 released in MSF distillers can be used for the recarbonation of the distillate. The recarbonation method using CO2 from the vent gases of MSF distillers has gained importance, since the post-treatment of potable water can be affected without additional CO2 production by combustion processes.

In this study, Remazol Black B dyestuff removal from wastewater by ion exchange was investigated with in a batch system and 23 full factorial design was applied. Anion exchanger resin was prepared from agricultural residue (straw) after reaction with epichlorohydrin and dimethylamine in the presence

A semi-analytical approach was presented to study the transient heat transfer of a single volatile drop evaporation in an immiscible liquid with bubble nucleation inside the drop. The solution was based on the energy equation included both convection and conduction heat transfer from the continuous

A new method of hydrolytic acidification-sequencing batch reactor (SBR) process in aquatic products processing wastewater treatment is given. In the stage of the pretreatment, the hydrolysis-acidification technology was adopted, it is effective to improve the biodegradability of the wastewater. The

This study has investigated in a comparative fashion the effect of cations and polyelectrolytes on the characteristics and final properties of both synthetic and activated sludge. Synthetic sludge was prepared according to established procedures; activated sludge was produced in a lab-scale, continu

Desalination of secondary effluents in Israel by use of advanced IMS technology has been considered as a major water supply option since different IMS technologies evolved in the last several years for a variety of desalination applications like desalination of brackish surface, seawater and the mor

The water consumption increases at high speed under the effect of the demographic growth and the agricultural and industrial development. This water consumption involves a significant and increasing quantity of wastewater. These untreated rejections generally are poured in receiving environment (lak