IMPROVED ENERGY EFFICIENCY AND RESOURCE CONSERVATION IN BIOLOGICAL PHOSPHORUS REMOVAL FROM WASTEWATER TREATMENT
Abstract
In modern practice of wastewater treatment are known methods of extraction of phosphorus compounds and use those as feedstock in the production of fertilizers. The effect of redox potential of environment to the process of biological treatment from phosphate was studied. Studies have focused on the identification of new control influences for intensification of enhanced phosphorus removal on wastewater treatment plants. The quantitative dependence was set at laboratory simulation of aerobic and anaerobic conditions with activated sludge cultivation, as well as during the examination of existing sewage treatment facilities. Established that low value of the redox potential of environment mobilize a larger number of phosphates from the sludge to wastewater. The received quantitative characteristics allow to use the redox potential of waste water (controlled parameter) for controlling the depth and intensify enhanced phosphorus removal in a biological wastewater treatment.Keywords: wastewater, activated sludge, phosphorus, redox, volatile fatty acids.
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