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Tertiary treatment of leachates from municipal solid waste

机译：城市生活垃圾渗滤液的三次处理

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The present work is a study of a tertiary treatment for the final effluent of the treatment plant for the leachates generated in the Central Sanitary Landfill of Asturias (COGERSA). The method employed in this plant consists of a pressurised aerobic process, followed by ultrafiltration. By means of this treatment, the biodegradable organic matter and the ammoniacal nitrogen are almost completely eliminated, obtaining values of BOD_5 and N-NH_4~+ of less than 30 mg/l and 5 mg/l, respectively. However, the leachates contain a large amount of refractory organic matter, which is not eliminated by biological treatment. Adsorption studies were carried out on granular active carbon (GAC) and on resins with the aim of elimination these compounds. These studies were carried out at laboratory scale in columns of 2 cm width and 30 cm height, maintaining a cownflow of 5 ml/min.
机译：目前的工作是对阿斯图里亚斯中央卫生垃圾填埋场（COGERSA）产生的渗滤液产生的处理厂的最终废水进行第三级处理的研究。该工厂采用的方法包括加压好氧工艺，然后进行超滤。通过这种处理，可生物降解的有机物和氨氮几乎被完全消除，BOD_5和N-NH_4〜+的值分别小于30 mg / l和5 mg / l。但是，渗滤液中含有大量的难降解有机物，生物处理并不能将其清除。为了消除这些化合物，对颗粒状活性炭（GAC）和树脂进行了吸附研究。这些研究是在实验室规模的2 cm宽和30 cm高的色谱柱中进行的，维持5 ml / min的流速。

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