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NSF International NSF International <br /> Standard 40-Residential Wastewater Treatment Systems Standard 40-Residential Wastewater Treatment Systems <br /> m <br /> Plant Effluent Plant Effluent <br /> @ N Week Beginning: July 15,200t Plant Code: NT-S05 Week Beginning: July 22,2001 Plant Code: NT-S05 <br /> ( o <br /> Weeks Into Test: 9 Weeks Into Test: to <br /> 0 <br /> Weekend Dosing: Sunday 474 gallons Saturday 478 gallons Weekend Dosing: Sunday 478 gallons Saturday 478 gallons <br /> Monday Tuesday Wednesday Thursday Friday Monday Tuesday Wednesday Thursday Friday <br /> Dosed Volume(gallons) 474 474 475 475 478 Dosed Volume(gallons) 478 478 478 191 478 <br /> Dissolved aeration Dissolved aeration <br /> Oxygen(mg/L) chamber chamber <br /> Oxygen(mg/L) <br /> effluent effluent <br /> influent 17 17 18 19 18 influent 18 20 20 19 18 <br /> c _ Temperature aeration Temperature aeration <br /> (C) chamber (C) chamber <br /> effluent 18 19 19 18 18 effluent 20 22 20 20 20 <br /> 0 <br /> :a influent 6.8 6.9 6.8 6.9 7.0 influent 7.4 7.6 7.4 6.9 <br /> pH aeration H aeration <br /> 0 � chamber p chamber <br /> Q 0 <br /> g effluent 7.1 6.4 6.6 6.6 6.5 effluent 6.7 6.6 6.4 6.7 6.8 <br /> CD Carbonaceous Carbonaceous <br /> influent 340 280 350 360 540 influent 130 120 95 88 <br /> Biochemical Biochemical <br /> a Oxygen Demand Oxygen Demand <br /> (m !L) effluent 15 4 2 <2 <2 (mg�L) effluent <2 6 6 4 6 <br /> CD 0 <br /> CD <br /> g <br /> 0 <br /> CL influent 1000 540 750 520 1400 influent 240 84 72 34 <br /> Z g Suspended aeration Suspended aeration <br /> -n o Solids(mg/L) chamber Solids(mg/L) chamber <br /> 3 a effluent 42 6 2 3 <2 effluent 3 <2 10 <2 3 <br /> 3 influent influent <br /> w Volatile Volatile <br /> aeration aeration <br /> o <br /> Suspended <br /> Suspended chamber chamber <br /> m Solids(mg1L) Solids(mg/L) <br /> effluent effluent <br /> 45 Minute 45 Minute <br /> Settleable Solids aeration 2.8 5.3 5.1 4.2 3.5 Settleable Solids aeration 4 2 2 2 2 <br /> (mUL) chamber (niUL) chamber <br /> (a)Site problem Notes: (a)Site problem Notes: July 27,2001 -Problem with influent sampler. No <br /> (b)Malfunction of (b)Malfunction of samples were taken. <br /> system under test system under test <br /> m (c)Weather problem (c)Weather problem <br /> m <br /> D m (d)Other (d)Other <br /> , rn <br /> N O <br /> (D <br /> C? A <br /> N 0) <br /> p cri <br /> � n� <br />