A.V. Amalia, F. Fibriana, E.Y. Astuti, E. Soesilowati
Septic Tank is a shelter for solid materials of human waste (faeces) which will quickly fill up when there is no decomposition process by bacteria decomposers. The amount of bacterial decomposers in a septic tank is generally less compared to the accumulation rate, so it is necessary to supply bacteria decomposers. The addition of these microorganisms is very cheap when compared to the cost of desludging or drying beside being practical, healthy and environmentally friendly. The decomposing bacteria (microorganisms) will decompose the solid materials in the septic tank into water (H2O) and some gas (CO2).Microorganisms that can decompose or degrade human faeces are PAOs (polyphosphate accumulating organisms) by degrading the polyphosphate into phosphate. Microorganisms that play a role in the decrease of phosphates are bacteria and fungi. Aerobic bacteria such as Pseudomonas sp. is one of the phosphate-degrading microorganisms. This research used the Pour Plate and gram staining method for microscopic observation to find the morphology of Pseudomonas sp. © Published under licence by IOP Publishing Ltd.
Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia; Department of Javanese Language and Literatur, Faculty of Languages and Arts, Universitas Negeri Semarang, Indonesia; Department of Economic, Faculty of Economic, Universitas Negeri Semarang, Indonesia
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