SOP - STP

GENERAL COMMISIONING PROTOCOL - STP

Contents: 1.

Start Up Up Process

2.

Pre – Com Commi miss ssio ioni ning ng Proce rocess ss 2.1 Raw Sewage Transfer Pump 2.2 Start Start Of Aerati Aeration on Proc Process ess 2.3 Recirculat ecirculation ion Proce Process ss 2. !isinfec !isinfection tion Proces Process s

3.

Terti ertiar ar" "P Prroce ocess

1.0 START-UP PROCESS: 1. C#ec$ t#e %nlet parameters of t#e %nlet Sewage. 2. C#ec$ if t#ere is su&cient sewage in t#e collection tan$. %f t#e Sewage is insu&cient' STP can(t wor$ properl". Sewage s#oul) *e minimum 3+, of Plant capacit". 3. -efore Starting t#e raw sewage transfer pump' open t#e al/e.

2.0 STARTUP OF PLANT: 2.1 Raw Sewage Transfer p!p 1. 0or starting t#e Pump' turn on t#e Switc# locate) on t#e lectric Control Panel CP. After Starting' c#ec$ t#e Pressure 4auge for )isc#arge Pressure to c#ec$ t#at t#e pump is lifting water w#ic# is use) to transfer t#e sewage from collection tan$ to aeration tan$ 2. A)5ust t#e /al/e to regulate t#e )esire) 6ow. 3. C#ec$ t#e sewage le/el in t#e aeration tan$. 0ill t#e tan$ till 3+, of t#e /olume.

2.2 S"ar" #f Aera"$#n Pr#%ess . Start t#e *lower from t#e CP after c#ec$ing oil le/el an) open t#e /al/e so t#at t#e air 6ows to t#e aeration tan$. 7. C#ec$ t#e aeration in t#e aeration tan$ to con8rm t#at t#e )i9users are wor$ing 8ne. %n case if t#e water is not getting agitate)' $in)l" c#ec$ t#e /al/e of t#e *lower again.

. ;aintain t#is le/el till for a*out 12 to 17#rs time an) t#en again 8ll t#e aeration tan$ to eep c#ec$ing t#e le/el of t#e settle) slu)ge in t#e aeration tan$. %t is *etter to maintain it in *etween 27, to 7, *" )oing t#e 5ar test.

2.& Re%$r%'a"$#n Pr#%ess 17. 1.

Tu*e settler is use) to settle t#e Slu)ge an) to 6ow t#e clari8e) water to t#e later process Start t#e raw sewage transfer pump an) $eep it running till t#e o/er6ow from Tu*e settler to

c#lorine contact tan$@#ol)ing tan$ #appens. 1AS F %@E

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Please note: T#e *ac$was# s#oul) *e )one w#ene/er t#e inlet an) outlet pressure of t#e P0S or AC0 is more t#an +.< *ar pressure irrespecti/e of t#e ser/ice time. T#e *ac$was# s#oul) *e )one till t#e )i9erential pressure re)uces to regular pressure.