تأثير بعض العوامل التشغيلية على أداء تقنية التلبيد المثقل لمعالجة المياه

Abstract EN

The study aimed to apply the concept of Ballasted Flocculation (BF) at modified jar test for different turbidities for Tigris rivers raw water in order to find out the optimum values for each of :the additives chemicals, the ballasted agent doses and the operating conditions which are each of the detention time and velocity gradient A study of 366 samples for six levels of initial synthetic turbidity of the Tigris River showed that it is possible to adopt BF technique successfully, and it reduces the time of the treatment phase and increase the stability of the quality of water treatment, but does not reduce the concentrations of the chemicals which are used.

The study shows that the use of alum concentration of 30-40 mg/L with polymer concentration of 0.2-0.4 mg/L and BA concentration of 0.5-2.5 g/L for the range of diameters between 75-212 μm achieve a residual turbidity ~1 NTU for supernatant water