Wastewater

The experience of the Canary Islands is unique in the world. In a very limited territory, all types of technologies and combinations can be found. The tertiary treatment installed in the waste water treatment plant of Barranco Seco (Gran Canaria, Canary Islands) has been designed with an ultrafiltra

Water scarcity in Mediterranean areas such as Comunidad Valenciana (Spain) makes water reuse necessary in high water-consuming industries. Previous studies by our research group showed that nanofiltration (NF) membrane permeates could be reused in some processes of finishing, dyeing and printing in

The application of photocatalysis in the treatment of organic micropollutants in wastewater is an interesting alternative and is the object of a great interest over the last years by many researchers. The stage of adsorption of the micropollutant on the photocatalyst, mainly the titanium oxide anata

This experimental work studies photocatalytic degradation of phenol. The semiconductors used were zinc oxide (ZnO) and three commercial titanium oxides (TiO2) (Dégussa P25, TiO2-A1 and TiO2-A2). The rate of removal was greater for Dégussa P25 and ZnO. To understand the difference between photocataly

Rates of Cu++ removal from waste solutions by cementation on a perforated reciprocating zinc disc were studied under different conditions of frequency and amplitude of oscillation. Disc pulsation was found to increase the rate of cementation by a factor ranging from 2.8 to 5.5 compared to cementatio

The importance of wastewater treatment in the food industry is growing nowadays, because of the rising cost of water and because of environmental pollution. The aim of this study was to decrease the chemical oxygen demand (COD) of two different wastewaters originated from the food industry. If the t

This paper reports the experimental results of a pilot-scale (100 m3/h) investigation, carried out at the West Bari (S. Italy) municipal wastewater treatment plant, focused on parasite removal and disinfection by-product (DBP) formation during the UV disinfection of clarified (CL) and clarified-filt

Membrane filtration is increasingly accepted as a treatment process for drinking water supply in Germany as it guarantees an effective particle removal. However, there is still research and development required for the regular backwash and cleaning of the membrane systems. In this paper three case s

Partial nitrification is required before transporting secondary treated wastewater by pipe, which is common in most schemes of wastewater reclamation for irrigation. Sulfide, generated in the anaerobic conditions of the pipe, induces toxicity, corrosion and unpleasant odours. However, a low nitrate

Endocrine disrupting compounds can affect hormone systems in organisms. However, conventional wastewater treatment plants are not able to remove these substances sufficiently before disposing effluent into the environment. Membrane technology, which is proving to be an effective barrier to these sub