The prevalence of various pollutants like nitrogenous, sulphur, and phosphorous compounds and heavy metals in natural ecosystems has seriously threatened the sustainability of natural ecosystems and is thus interfering with the natural biogeochemical cycling. Chemical pollution of water bodies can cause huge damage to our environment because many of these pollutants are highly poisonous and can in the worst case scenario wipe out entire aquatic ecosystems. The world still has not come up with the adequate monitoring system despite the fact that the global chemical pollution continues to grow because of the many “new” pollutants which have entered use in recent years. The long lasting effects of these pollutants are too varied, diverse, and no more a mystery now. Although nature often has great ability to recover from environmental damage, the growing demands on water resources necessitate the professional application of fundamental knowledge about the water cycle to ensure the maintenance of quality and quantity. Potential topics include, but are not limited to:

• Plant/animal/human responses to chemical pollutants and toxic effects of pollutants on living organisms
• Reactor design for metal and nutrient removal
• Microbial characteristics of biomass used
• Process design and control
• Biometallurgy
• Bioremediation
• Implementation of new technologies in a WWTP for energy saving and nutrients recovery

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