Treatment

The close proximity of two Guatemalan villages to the turquoise lagoons of Sepalau in Chisec, Alta Verapaz, made these lakes the communal washing site for over 200 families. As a result, the lagoons were contaminated with soap and bleach chemicals. Community members, with the help of a Guatemalan su

Research and development work to optimize the BIOSORTM-Manure, a biofiltration process for pig manure treatment, have been realized on the site of a piggery (Île d’Orléans, Québec, Canada) using a 400 m3 biofiltration system. Despite strong variations in BOD5 (10,000–20,000 mg/L), in SS (10,000–20,0

A new method of membrane sequencing batch reactor (MSBR) process in abattoir wastewater treatment is given. With nitrification and denitrification bacterium, it is effective to remove nitrogen. At the same time, the whole system can be autocontrolled and do not add any drugs or bacteriums again afte

Natural zeolites are good potential material for water and wastewater treatment. It is due to the advantages of low cost, ion-exchange and adsorption capability of the natural zeolites. It can also be modified and regenerated. This paper thus looks at efforts made in exploring the potential applicat

Struvite, magnesium ammonium phosphate hexahydrated (MAP) (Mg NH4 PO4.6H2O) is a white inorganic crystalline mineral that can be used as a slow releasing fertilizer. The present study evaluated the feasibility of using bittern as a by-product of salt manufacture, as a low-cost source of magnesium io

Endocrine disrupting chemicals and pharmaceuticals represent two classes of emerging contaminants that are ubiquitously present in municipal wastewater effluents. Some of these contaminants have been shown to impact aquatic organisms at trace concentrations (i.e., ng/L). Moreover, the public has exp

The cellulose hydrazone derivative is a novel product prepared from dialdehyde cellulose with 2-hydrazino3,5,6,7tetrahydrocyclopentanethieno[2,3-d]-pyrimidin-4(4H)-one under suitably selected conditions. It was found that the reaction of dialdehyde cellulose with the 2-hydrazino derivative decreased

The selection of an optimum scheme for treatment of agricultural drainage water for reuse in specific applications is a challenging and tedious task that necessitates the evaluation of a long train of optional treatment processes which involve, among others, alternative desalting systems. The decisi

Le bassin versant de l’Oued Tafna est formé par les reliefs et des zones déprimées, qui s’alternent du Nord au Sud et dont le volume augmente considérablement dans le même sens. Le réseau hydrographique a un tracé général orthogonal même si la Tafna et ses principaux affluents décrivent sinuosité et

The water resources of Kuwait are limited to desalinated water to meet the requirements for all freshwater needs, unreplenishable brackish water as a supplementary source for blending and agriculture, and municipal wastewater which is treated and mainly discarded to the sea. Limited quantities of th