Judul: Pembandingan Berbagai Metoda Desain Sistem Lumpur Aktif Untuk Penyisihan Nutrien.
Abstrak: Activated sludge system is a biological wastewater treatment applied for domestics and industries that could eliminate carbon, nitrogen, and phosphor. An activated sludge system needs to have the right design in order to achieve high quality effluents. Methods used in this research are Conventional, MLE and UCT. Conventional method use the confignration of one reactor aerobic, MLE use an anoxic-aerobic· configuration, and UCT use an anaerobic-anoxic-aerobic configuration. Result of the simulation for F 1M showed that sludge concentration will increase when FIM increase. For 10wFIMvalue 0.15 mg COD mg VSS dail will result on sludge concentration (MX.) 954 kg TSS and excess sludge (MEt) 27.73 kg/day. For high FIM value 0.95 mg COD mg VSS dail will result on MXt 150 kg and MEt 50.82 kg TSS/day. The MLE and UCT configuration could achieved the nitrogen effluent of 10 mgIL on FIM value 0.2-0.35 mg COD mgVSS-1 day-I. Conventional configuration result on effluent nitrogen concentration of20 mgIL on FIM value 2 mg COD mgVSS-1 dail. UCT methods result in higher Phosphor elimination, which value is 0.87 mgIL on FIM value 0.4 mg COD mg VSS-I day-l MLE and Conventional methods result on effluent phosphor 31 mgIL on FIM value of2 mg COD mg VSS-I hari-I.
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Judul: Pemodelan Kuantitatif Berbasis UML (Unified Modeling Language) Proses Lumpur Aktif Untuk Penanganan Limbah Cair Agroindustri.
Abstrak: The objectives of this research is to find the best parameters value for designing basin, mixing and aeration system, to optimize the process design and process controls, to simulate activated sludge process that consists of the BOD removal only, BOD removal with nitrification, Biological nitrogen removal for anoxic/aerobik process, and Biological phosphorus removal, using a computation model of activated sludge process based on UML (Unified Modeling Language). The calculated data was analyzed by using calculation of each process at activated sludge process. Activated sludge process design covers determination of the aeration basin volume, the amount of sludge production, the amount of oxygen needed, and the efluen concentration. The computation model of activated sludge process consists of BOD removal only, BOD removal with nitrification, biological nitrogen removal for anoxic/aerobik process, and biological phosphorus removal
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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