FLOKULAFIL-SEDIMENTASI PADA KOLOM PENGENDAP KONTAK SOLID

• Main Author: Handoyo Mukti, Sri
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/2902
• Institution: Institut Teknologi Bandung

Sludge blanket that have been occured in the contact solid systems depend on the upflow velocity of the system. This condition is similar to the hinder settling condition. Using Tesarik-Vostril equation. v = a/W. the characteristics of sludge blanket can be evaluated based on the value of parameter a and n. We can determine the parameter of a and n in the upflow and hinder settling condition using 2 m Settling Colomn heigh. Alum and FeCl3 are used in this experiment as coagulant. Sludge recirculation applied to observe their effect on the value of parameter a and n from Tesarik-Vostril equation. Bentonite are used in this experiment to make the constant water turbidity at 50 - 60 mg/I SiO2. The pH applied in this experiment is between 6 - 7. The result of these experiments are: Coagulant Upflow Condition Hinder Settling Condition a (g.mm/l.sec.) n a (g,mm/Isec.) n Alum 0,69 0,97 0,50 1,19 Alum + resirkulasi 0,93 1,64 0,61 1,53 Lumpur FeCI3 1,32 1,08 1,21 1,70 FeC13 + resirkulasi 2,13 1,23 1,37 1,81 lumpur We can find from this experiment that the value of parameter a and n from Alum coagulant using are less than from the value of parameter a and