| Title |
A Study on Effective Treatment for Landfill Leachates of Municipal Refuse |
| Authors |
김동윤 ; 이상봉 ( Dong Yun Kim ; Sang Bong Lee ) |
| Abstract |
A leachate from municipal sanitary landfill site, which is located at the Sukdae-dung, Pusan, was characterized in term of high BOD(∼25,800㎎/ℓ), COD (∼52,000㎎/ℓ) and NH₄^+-N (l,950㎎/ℓ) during August-September, 1987. Nonbiodegradable portion of this waste was estimated to be approximately 20% based on 20 days BOD and COD measurements. Possibility of pretreatment with coagulant including alum, lime and alumlime mixture was tested on this wastewater, Alum with 2,500㎎/ℓ at rapid mixing period of o to 10 minutes was resulted 45% removal of COD, which was best efficiency among various testing conditions. Comparison of biological treatability test on raw leachate and coagulant -treated wastewater was performed with batch reactor, When the initial F/M was increased from 0.34 to 2.9, the trend of treatability was decreased. However, the removal efficiencies of COD of coagulant-treated wastewater became higher than those of raw leachate as the initial F/M increased. |