Seasonal Variations of Some Ecological Parameters in Tigris River Water at Baghdad Region, Iraq
Adel Mashaan Rabee, Bahaa Malik Abdul-Kareem, Ahmed Saad Al-Dhamin

Treatment of Oily Wastewater Using Composite Flocculant of Polysilicate Ferro-Aluminum Sulfate – Rectorite
Shi-Qian Li, Pei-Jiang Zhou, Ling Ding, Kai Feng

Increase in Straight and Coiled Cylindrospermopsis raciborskii (Cyanobacteria) Populations under Conditions of Thermal De-Stratification in a Shallow Tropical Reservoir
Maria do Carmo Bittencourt-Oliveira, Ariadne do Nascimento Moura, Talita Caroline Hereman, Enio Wocyli Dantas

Predicting Phosphorus Sorption onto Steel Slag Using a Flow-through approach with Application to a Pilot Scale System
Chad J. Penn, Joshua M. McGrath

Stability of Confidence Levels for Flood Frequencies Using Additional Data
T. V. Hromadka II, Robert J. Whitley, Mick J. Smith