半好氧垃圾渗滤液的生物降解初步表征

N. Kin, H. A. Aziz, A. Mojiri
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引用次数: 2

摘要

垃圾渗滤液的特性已经得到了很好的确定。然而,其生物降解性能尚未得到很好的报道。为此,本研究旨在研究半好氧卫生填埋场的生物降解性,以及布隆岛垃圾填埋场渗滤液中生物需氧量(BOD)与化学需氧量(COD)的比值、BOD5/COD、COD分数。这些参数很重要,因为它们可以为这类渗滤液提供适当和合适的处理方法。在本研究中,研究了两个不同池的渗滤液,即来自渗滤液收集池的原渗滤液和处理厂的渗滤液。每个池塘测试了五个不同的测量点,以了解渗滤液的特征。采用孔径0.45μm的膜过滤器过滤可溶性有机化合物和颗粒性有机化合物。结果表明,PBLS渗滤液的BOD5/COD比较低。总COD (TCOD)为2040mg/L ~ 3160mg/L。可生物降解COD (BCOD)、不可生物降解COD (UBOD)、可溶性生物降解COD (RBCOD)、颗粒生物降解COD (SBCOD)、颗粒惰性COD (UPCOD)和可溶性惰性COD (USCOD)的范围分别为53% ~ 67%、33% ~ 47%、38% ~ 46%、9% ~ 25%、12% ~ 26%和18% ~ 25%。这表明,埔隆岛垃圾填埋场的渗滤液与生活污水相比,其COD组分的行为有所不同。其中,渗滤液的SBCOD较低,其他COD分数相对生活污水较高。
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Initial Characterization of Semi-aerobic Landfill Leachate Based On Its Biodegradation
The characterization of landfill leachate has been well established. However, its biodegradation properties have not been well reported. Therefore, this research was undertaken to investigate the biodegradability of semi-aerobic sanitary landfill and the ratio of the biological oxygen demand (BOD) to chemical oxygen demand (COD) BOD5/COD, COD fraction on leachate from Pulau Burung landfill Site (PBLS). These parameters are important as they may provide appropriate and suitable treatment for this kind of leachate. In this research, leachate from two different ponds were studied i.e., the raw leachate from leachate collection pond and the leachate effluents of the treatment plant'. Five different measurement points were tested for each pond to understand the characterization for leachate. The soluble and particulate organic compound was separated by filtration using a 0.45μm pore size membrane filter. The results indicated that leachate in PBLS has low BOD5/COD ratio. The total COD (TCOD) ranged from 2040mg/L to 3160mg/L. The Biodegradable COD (BCOD), unbiodegradable COD (UBOD), soluble biodegradable (RBCOD), particlulate biodegradable (SBCOD), particulate inert (UPCOD), and soluble inert (USCOD) ranged from 53%-67%, 33%-47%, 38%-46%, 9%-25%, 12%-26%, and 18%-25%. This indicates, the leachate in Pulau Burung Landfill Site have different of COD fraction behavior compare with domestic wastewater. In which, leachate have low SBCOD, but relatively high in others COD fraction compare with domestic wastewater.
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