| 연속 회분식 공정(SBR)을 이용한 선박 오ㆍ폐수의 고도처리 |
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박상호, 김인수 |
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| Advanced Wastewater Treatment using Sequencing Batch Reactor on ship’s sewage |
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Sang-Ho Park, In-Soo Kim |
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| Abstract |
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Lab scale experimental study was carried out for SBR process, to investigate the effects of influent ship sewage organic compound removal and Bacillus sp. state on design parameters. This process was able to remove nitrogen and phosphorus as well as organic matter efficiently. More than 92.0% of chemical oxygen demand(COD) were removed. In addition, about 84.0% of total nitrogen(T-N) was reduced. The total phosphorus(T-P) reduction averaged 93%. The performance load of SBR process was shown to be 0.095㎏ㆍTOC/m3ㆍday. The pH was decreased from 8.1 to 7.0 within 30 min and increased to 7.3 at the end of anoxic stage, and these phenomena were explained. The sludge produced in the SBR process is characterized by low generation rate (about 0.36㎏ㆍMLSS/㎏ㆍTOC) and excellent settleability. The number of Bacillus sp. in the SBR was 24.2%, indicating that Bacillus sp. was a predominant species in the reactor. |
| Key Words:
Ship sewage;Sequence Batch Reactor (SBR);Bacillus sp. DO;pH |
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