Grit Removal Xlsx

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    31-Dec-2015
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design and calculation of grit removal in waste water treatment

Transcript of Grit Removal Xlsx

GRIT REMOVALQ42076.8m3/hariWaktu operasi24jam/hari1753.2m3/jam29.22m3/min0.487m3/sTypeHorisontal flowdibuat 1grit (channel) dengan proportional weirDetention time60s1minKecepatan horisontal (Vh)0.3m/sDiameter partikel minimal yg diendapkan0.2mm65meshSuhuoCv =0.00008774cm/skecepatan pengendapan1.15m/min0.01917m/sSg grit2.65k0.05f0.02PerhitunganQ channel0.487m3/sLuas Penampang (ACross)1.62m2Luas Permukaan (ASurface)25.41m21. DIMENSIKedalaman Air, h1.15m Lebar Grit Chamber1.41mPanjang Grit Chamber18.00mR0.437NRe =1,495CheckOKE2. KECEPATAN SCOURING, VSCVSC =8.05m/sCheckOKE

DirencanakanDebit buangan0.487m3/s42,077m3/hariKadar (kandungan pasir) 30m3per1,000,000m3 Air buanganPengurasan tiap3hariBentuk Grit StorageTrapeziumPerhitunganVolume Pasir dalam 1 hari1m318.15Volume Pengurasan4m318.00mDimensi Grit StorageaaPanjang Grit Chamber18.00mbLebar Grit Chamber1.41mbcpanjang dasar trapesium15.35m1.41dlebar dasar trapesium0.5mtLuas Permukaan25.4m2Luas Dasar7.7m2dc0.5Volume Grit Storage3.79m315.35tinggi trapesium0.24m3.PROPORTIONAL WEIRDirencanakanQ, debit 0.487m3/s17.198ft3/sa0.1m0.33fty0.2m0.66fth = tinggi muka air di grit chamber1.15m3.77292ftdiperoleh nilai b, =1.65ft0.503mPerbandingan, y/a =2Dari tabel diperoleh, nilai x/b =0.392shgx0.65ftMarsono, "Hidrolika Teknik Penyehatan", Hal : II-53)Dimensi Proportional weir :a0.328ftb1.649ftx0.646fty0.656ft