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: 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: Daya Tahan IgY Spesifik Terhadap Influenza dan COVID-19 dalam Balsam Bibir
Abstrak: Influenza and SARS-CoV-2 virus are respiratory infections and require antiviral medications due to severe consequences. Utilization of specific immunoglobulin Y (IgY) inserted in personal care products were developed. The aim of this study was to evaluate durability of specific IgY against influenza and COVID-19 in lipbalm. The concentration of IgY used in this research was 0.1% and 0.25%. Three groups were observed: control (C) lipbalm without IgY, treatment 1 (T1) lipbalm with 0.1% IgY and treatment 2 (T2) lipbalm with 0.25% IgY. Organoleptic tests were conducted and recorded which includes the sense of smell, colour and consistency for six weeks. The presence of IgY in lipbalm was evaluated using enzyme-linked-immunosorbent-assay (ELISA) and neutralizationassay. There were some noticeable changes of organoleptic that can be observed such as colour darkened and texture hardened of the lipbalm. Most of the assays gave negative results in T1 and T2, whilst only few of them were doubtful. Our result indicated that IgY concentration of 0.1% or 0.25% in lipbalm were not optimal. However, the negative result might be due to the unavailability of IgY in the product to be dissolved in deionized water since we used beeswax as lipbalm component.
Keyword: Covid-19, egg yolk immunoglobulin Y, lipbalm, influenza