Open AccessDENITRIFIKASI LIMBAH NITRAT PADA BERBAGAI TINGKAT KEASAMAN DENGAN MEMANFAATKAN MIKROBA AUTOTROPH
Author(s) -
Rudi Nugroho
Publication year - 2017
Publication title -
jurnal air indonesia
Language(s) - English
Resource type - Journals
eISSN - 2715-6494
pISSN - 0216-4140
DOI - 10.29122/jai.v1i1.2284
Subject(s) - autotroph , denitrification , chemistry , nitrate , bacteria , sulfur , environmental chemistry , activated sludge , wastewater , environmental engineering , nitrogen , environmental science , biology , organic chemistry , genetics
A biological denitrification using autotrophic bacteria in batch suspension runs was investigated to clarify the effect of pH on denitrification rate. Elemental sulfur was employed as an electron donor. The culture of autotrophic bacteria was obtained from activated sludge by acclimatization. The effect of pH on denitrification rate could be expressed by bell-shape equation with optimum pH of 7,07. However at a pH range of 5,5 to 8,0, the denitrification rate significantly fastl. Therefore, the application of the denitrification of wastewater using autotrophic bacteria is suggested running well although without controlling pH. Kata kunci : Denitrification, nitrate, autotrophic bacteria, elemental sulfur, pH.