Paddle Flocculators ASaatci Vertical Paddle Flocculator Horizontal Paddle

Paddle Flocculators ASaatci

Vertical Paddle Flocculator

Horizontal. Paddle Flocculator

• • • • 3. ) P, power t = V/Q = 51, 780. 9 ft 3/12 x 106 gpd x x 1440 minutes/day t = 46. 48 minutes Gt = 25 s-1 x 46. 48 minutes x 60 s/minute Gt = 69, 720 between 50, 000 -100, 000 OK velocity of the water, v = 75% of the maximum peripheral velocity The distance traveled is D or 2 r per revolution, rev/s x D/rev = D/sec v =. 75 x 2 r x R(revolutions per second) v 1(first compartment) =. 75 x 2 (5. 25’) x R v 1(first compartment) = 24. 74 R v 2(second compartment) =. 75 x 2 (3. 75) x R v 2(second compartment) = 17. 67 R v 3(third compartment) =. 75 x 2 (2. 25’) x R v 3(third compartment) = 10. 60 R

• • • • P=. 97 CDAv 3 =. 97 CDA 1 v 13 +. 97 CDA 2 v 23 +. 97 CDA 3 v 33 = . 97 CDA(v 13 + v 23 + v 33), A 1=A 2=A 3 P =. 97(1. 50)(. 5’x 10’board dim. )(2 boards, 1 up, 1 down)[24. 743+17. 673+10. 613]R 3 P=317, 976 R 3 first compartment P= VG 2 = = 2. 73 x 10 -5 lb. s/ft 2 x 51, 780. 9 ft 3 /3(3 compartments)x 452 P=950. 7 ft. lb/s x 1 hp/550 ft. lb/s P 1=1. 73 hp 950. 7 ft. lb/s / 7 wheels = 317, 976 R 3 R =. 075 rps RPM(max) =. 075 rps x 60 s/min RPM(max) = 4. 50 rpm RPM(min @ 1: 4 turndown) = 4. 50 rpm/4 RPM(min @ 1: 4 turndown) = 1. 13 rpm

• • • Peripheral speed of outside blade v = circumference x RPM v 1 (actual v as opposed to 75%) = R x 2 r v 1 =. 075 x 2 (5. 25) v 1 = 2. 47 fps • • • second compartment P= VG 2 = = 2. 73 x 10 -5 lb. s/ft 2 x 51, 780. 9 ft 3 /3(3 compartments)x 20 2 P=187. 8 ft. lb/s x 1 hp/550 ft. lb/s P 2=. 34 hp 187. 8 ft. lb/s / 7 wheels = 317, 976 R 3 R =. 044 rps RPM(max) =. 044 rps x 60 s/min RPM(max) = 2. 64 rpm RPM(min @ 1: 4 turndown) = 2. 64 rpm/4 RPM(min @ 1: 4 turndown) =. 66 rpm • • • third compartment P= VG 2 = = 2. 73 x 10 -5 lb. s/ft 2 x 51, 780. 9 ft 3 /3(3 compartments)x 10 2 P=46. 95 ft. lb/s x 1 hp/550 ft. lb/s P 3=. 085 hp 46. 95 ft. lb/s / 7 wheels = 317, 976 R 3 R =. 0276 rps RPM(max) =. 0276 rps x 60 s/min RPM(max) = 1. 66 rpm RPM(min @ 1: 4 turndown) = 1. 66 rpm/4 RPM(min @ 1: 4 turndown) =. 42 rpm •

Useful References • http: //www. ajdesigner. com/phpflocculation/f locculation_power_equation_paddle_area. ph p • http: //water. me. vccs. edu/math/flocculation_ math 2. html • http: //www. google. com. tr/#hl=tr&source=hp &biw=&bih=&q=paddle+flocculator+design&a q=f&aqi=&aql=&oq=&gs_rfai=&fp=20811 d 112 c 8 b 3534