| Title | 아세트 알데히드(특수산업) 폐수의 생물학적 처리 | ||
| Author | 정기택 · 서승교 · 송형익 * · 박임동 · 방광웅 | ||
| Address | 경북대학교 식품공학과; * 대구공업전문대학 식품공업과 | ||
| Bibliography | Korean Journal of Microbiology, 25(4),333-338, 1987 | ||
| DOI | |||
| Key Words | Acetaldehyde waste water, Biological treatment, Continuous culture | ||
| Abstract | In order to establish the biological treatment system which can be used for treatment of waste aster from acetaldehyde plant, it was investigated optimum nutrient requirements and growth conditions by mixed culture of Micrococcus roseus AW-6, Micrococcus luteus AW-22, Microbacterium lacticum AW-38 and Microbacterium laevaniformans AW-41 as well as the effect of coagulants and neutralization reagents. Also, it was carried out the continuous culture as well as batch culture to treat the waste water by mixed culture of these strains. The COD removal rate was reached to maximum state for 96hrs culture at pH7.0 and 30℃. NaOH as the neutralization reagents was the most effective, but the coagulants had no effect on the COD removal rate and the optimum dilution times for treatment were 10 fold. The COD removal rate was also increased by supplementing 200 ppm NH₂NO₃, 50 ppm KH₂PO₄, 15 ppm CaCl₂and 1 ppm MgSO₄· ^7H₂O as additional nutrients. The removal rate coefficient K₁on the batch culture was 4.5×10^-6, and the detention time for BOD removal rate of 85% was approximately 45hrs. The COD of waste water was reduced to 15% of its initial value by the continuous culture. The COD and BOD of the effluents were to be about 60 ppm and 40 ppm, respectively, and final pH was 7.0. | ||
| Download PDF | Kor_250411_333-338p.pdf | ||