Research Abstracts

The chlorination of water containing natural organic matter (NOM) and bromide leads to the formation of total trihalomethanes (TTHMs), for which the Italian new regulation on drinking water (Legislative Decree 31/01) indicates a restrictive maximum concentration level of 30 µg/l. The extent of total

Because of increasing concern for both microbial control and disinfection by-products (DBPs) formation, water utilities are strictly examining and optimizing disinfection practices. In this study, modeling of trihalomethanes (THMs) formation at processed water of the Kagithane water treatment plant

Surface waters used for drinking purposes can vary markedly in their organic and inorganic content. High levels of variation occur in a range of water quality parameters such as turbidity, alkalinity, colour, natural organic matter, algae and micro-organisms. The removal of organic matter using inor

UV-photolysis and photo-initiated oxidation are promising technologies for water disinfection and the degradation of some organic precursors of disinfection by-products (DBPs). Due to the complexity of UV systems and the interaction of many parameters, the simulation of UV reactors for design optimi

Formation of disinfection by-products (DBPs) in chlorinated coastal (CS) and deep ocean (sampled at a 1500-m depth) seawater (DO) was explored using conventional chromatographic methods and differential absorbance spectroscopy. It was determined that trihalomethanes (THMs) predominated by bromoform,

Humic acids have been widely studied in the literature as a representative to natural organic matter (NOM) in drinking water supplies due to their composite heterogeneous nature comprising a variety of different molecular weight compounds. However, humic acids are difficult to isolate from water pri

The occurrence of disinfection by-products (DBPs) in drinking water has been an issue of major concern during the last years due to their adverse health effects. The development and optimization of analytical methods for the determination of DBPs in water are key points in order to estimate human ex

An investigation into the occurrence of disinfection by-products (DBPs) was conducted for a period of two years (2001–2002) on the drinking water of Athens, Greece. Samples from four water treatment plants (WTPs) and from the distribution system of Athens were collected monthly and analyzed for DBPs

Among the European Union Directives enacted on water management and environmental protection, Directive 98/83/EC defines the mandatory quality standards for water intended for human consumption in order to protect human health. The implementation of this Directive has often encountered delays due to

We considered the treatment of secondary effluent by coagulation–adsorption coupled with ultrafiltration. Tests were performed on the secondary effluent of the wastewater treatment plant at Staoueli (Algeria) where the average chemical oxygen demand (COD) was 46 (mg O2/L) and turbidity, 16 NTU. The