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Djoko Padmono
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Environmental Science

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KEMAMPUAN ALKALINITAS KAPASITAS PENYANGGAN (BUFFER CAPACITY) DALAM SISTEM ANAEROBIK FIXED BED Djoko Padmono
Jurnal Teknologi Lingkungan Vol. 8 No. 2 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (52.423 KB) | DOI: 10.29122/jtl.v8i2.415

Abstract

In the process of decomposition of the organic matter with the anaerobicsystem was learnt that the methane forming bacteria of was verysensitive to the level of the acidity in other words very sensitive with thelow pH. There are by two big groups the bacteria that was active in thissystem. These two bacteria group had the duplication capacity thatwas very different that is 3 hours during the acid forming bacteria of and3 days for the methane forming bacteria. The alkalinity in the reactorwith the certain concentration between 1000 – 5000 mg/l could supportthe pH continue to in the neutral condition when the decline in the pHhappened so as the balance of the process could on the whole stayproceeding normally.It was observed that achieving the pH 3 in the feeding, the concentrationof the alkalinity descended through to 500 mg/l this was the loweredcondition and the process of decomposition of the organic matter wasdisrupted. When being left alone then the system will stop completelybecause of the methane forming bacteria was inhibited.
GRANULASI LUMPUR BIOGAS ANAEROBIK Djoko Padmono
Jurnal Teknologi Lingkungan Vol. 8 No. 2 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (149.564 KB) | DOI: 10.29122/jtl.v8i2.416

Abstract

This article contained several differences of the theory about anaerobicsludge granulation biogas in the UASB reactor. The level of the granulationformation of the beginning followed same principles as the formation bio-film from the bacteria to a surface field. There exist strong facts that thematerial inert played a positive role important and granulation. Mostresearchers took the conclusion that Methanosaeta concilii was the mainkey to the formation of granulation. Only Town Stamp hypotheses thatassumed that the organism autotrophic hydrogenotrophic like for exampleMethanobacterium from strain AZ, could grow in the condition high H2-pressure, was the key to the formation organism of granulation. Severalwriters focus in the stage granulation early and only several contributionsthat discussed the following stage in granulation included maturationgranulation and multiplication. Determining factors granular in the latterstage was dominated in the existence of the manipulation of the pressureelection, through which particle of bigger sludge selectively was kept inthe UASB reactor.
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