H4-HH-10-D d mixing processes for liquid media Singlescrew e Helical speed reducers H4

Flender/Flender Gear Units/Helical speed reducers H4

herefore these cases have proven that process driven optimization approach which applies modelling to evaluate aeration ECMs offers several advantages: Enables offline thorough understanding of the im pacts of aeration ECMs on long term process performance before making commitments to capital expenditure and operational changes Minimizes the risk of implementing costly measures and/or measures that result in violation of final effluent quality requirements. Ensures compliance with final effluent regulations at minimal energy use as it addresses actual biological process energy requirements and performance taking into account daily/seasonal variability Includes and evaluates in scientific way ll the process parameters that impact energy consumption .. sludge age, aerated and un-aerated mass fractions Evaluates and optimizes most common aeration control strategies thus resulting in the most efficient being adopted Determines optimum blower/surface aerator turndowns under varying flows and load conditions thus allowing informed decisions to be made for changes to mechanical/electrical equipment Optimizes energy tariffs and determines optimum operation & control strategies to minimize energy consumption during high cost periods Evaluates impacts of changes to process conf igurations on energy consumption (.. flow balancing on site or in the collection sy stem, intermittent aeration, swing zones) Optimizes the management of internal plant side streams that impact energy consumption such as sludge thickening and dewatering liquors Can easily include modelling of energy offset opportunities such as biogas generation through anaerobic digestion of sludge thus enabling combined evaluation of supply and demand sides 2-1 2. Project Overview 2.1 CONTEXT AND OBJECTIVES Similar to the global industry, in South Africa the wastewater sector has historically focused on achieving the primary wastewater treatment objective of prot ecting