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NATIONAI ITATION FOUNDATION TESTING L ATORY <br /> `. �Mw <br /> PERFORMANCE EVALUATIUN HIO-PURE MODEL BP-30 <br /> F;eek. Beginning: 1 Apr 73 <br /> FLOD; PATTERN: subC31 V) s I noSUN MON TUE WED THU FRI SAT <br /> Flow gpd Influent 3100 2900 3000 2900 3000 3000 2900 <br /> Latch Count 801 811 823 832 842 850 <br /> Dissolved Aeration Tank 5.9 5.6 5 .6 6.0 5.9 5.9 <br /> Oxygen <br /> mq/1 Effluent 4.2 4 .0 - 4 .0 4 .9 3 .9 <br /> Influent 16 15 15 15 15 14 <br /> 'Temperature <br /> QC. Aeration Tank 17 16 16 16 17 16 <br /> Sec'dry Clarifier 17 16 - 15 16 16 <br /> Influent 7.3 7.2 7.2 7. 3 7,2 7 . 3 <br /> PllAeration Tank 7.3 7.3 7.3 7.3 7.4 7 . 4 <br /> Primary Clarifier 7 .0 7.4 7.4 7.5 7 . 5 7.6 <br /> Biochemical Influent 320 - 362 314 300 222 <br /> Ory!:en Demand Primary Clarifier 12 8 - 10 10 9 <br /> mg/1 Effluent 9 - 9 9 10 7 <br /> Suspended Influent 258 358 392 366 360 326 <br /> Solids Aeration Tank 2530 2340 2440 1420 1660 2100 <br /> mg/1 primary Clarifier 24 13 12 15 18 16 <br /> Effluent 1 14 20 12 8 13 14 <br /> ( Volatile Influent 214 266 258 304 264 298 <br /> Susn_ ended Aeration Tank 2010 1720 1840 900 .1255 1520 <br /> Solids r,.g/1 Primary Clarifier 15 13 6 8 11 10 <br /> Effluent 11 11 7 6 7 <br /> Sludge Volume <br /> 30-min. ml Aeration Tank 380 320 460 170 190 370 <br /> Sludge Volume <br /> Index Aeration Tank 150 137 197 120 114 176 <br /> Chemical Influent 648 760 922 840 688 596 <br /> Oxygen Demand <br /> mg/l Effluent 56 88 64 40 68 60 <br /> Ammonia Influent 17.4 <br /> Nitroger, 17 .3 16 .8 17.5 27.5 18 .9 <br /> mg/l Effluent 0 .9 1.6 <0 .1 0 .5 <0 .1 <0.1 <br /> Nitrate Influent <C .1 <0.1 <0.1 <0 .1 <0 .1 <0 .1 <br /> Nitrogen <br /> n. a/l Effluent 5 .5 5 .5 5 . 4 6 .9 6 .4 5.6 <br /> pnos phare. Influent 28.9 28.6 30.3 33.6 29 .4 39 .9 <br /> _ <br /> mg/l Effluent 11 15.9 16 .4 20 .8 - 17.6 22.7 <br /> Residual <br /> Chlorine mg1l Effluent 1.5 1.0 1.1 1.0 0.8 0 .6 <br /> Coiif-,rm Grp > <br /> 1000 MP[: Primary Clarifier -240 33 540 240 79 79 <br /> p•=r 100 ml <br /> Effluent > 24 0 .31 0 .33 0 .23 0 .23 0 . 23 <br /> - BODs analyses incomplete. <br /> 7 Apr - !effluent dissolved oxygen and secondary clarifier temperature <br /> not reasured uue to faulty operation of clarifier return <br /> Fluduc pump; return sludge wasted in the afternoon; chlorine <br /> res' dual of secondary sludge return at 1 .5 mg/l. <br /> 36 <br />