Mature landfill leachate treatment in a biological filter using scoria as media

IF 1.4 Q4 WATER RESOURCES
G. D. Jojoa-Unigarro, S. González‐Martínez, O. González-Barceló
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引用次数: 1

Abstract

Treatment of leachate and municipal wastewater has extended worldwide using already existing wastewater treatment plants. A biological aerated filter was used to treat leachate from Mexico City's largest landfill together with synthetic wastewater. After achieving stable operation of the filter under organic surface area loading rates of 8.1, 5.3, and 3.1 gCOD/m2·d, landfill leachate was added to the wastewater in volume proportions of 1, 2, and 3%. With leachate, COD removal decreases with increasing leachate concentration. Without leachate, complete nitrification was achieved with the two lower organic surface area loading rates and 93% NH4-N removal was achieved with the highest load. NH4-N removal was 71 and 39% with 2 and 3% leachate, respectively. The oxygen uptake rates decrease with increasing leachate concentration. With 3% leachate, O2 uptake rates for endogenous respiration are higher than for substrate respiration.
以焦渣为介质的生物滤池处理成熟垃圾渗滤液
利用现有的污水处理厂,渗滤液和城市污水的处理已扩展到世界各地。采用曝气生物滤池处理墨西哥城最大垃圾填埋场的渗滤液和合成废水。在8.1、5.3和3.1 gCOD/m2·d的有机表面积负荷率下,过滤器实现稳定运行后,将垃圾渗滤液以1%、2%和3%的体积比例加入废水中。对于渗滤液,COD去除率随着渗滤液浓度的增加而降低。在无渗滤液的情况下,两种较低的有机表面积负荷率可实现完全硝化,最高负荷时可实现93%的NH4-N去除率。渗滤液对NH4-N的去除率分别为71%和39%,渗滤液的去除率为2%和3%。渗滤液的吸氧率随渗滤液浓度的增加而降低。当渗滤液浓度为3%时,内源呼吸的O2吸收率高于基质呼吸。
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来源期刊
CiteScore
2.90
自引率
16.70%
发文量
31
期刊介绍: JAWER’s paradigm-changing (online only) articles provide directly applicable solutions to water engineering problems within the whole hydrosphere (rivers, lakes groundwater, estuaries, coastal and marine waters) covering areas such as: integrated water resources management and catchment hydraulics hydraulic machinery and structures hydraulics applied to water supply, treatment and drainage systems (including outfalls) water quality, security and governance in an engineering context environmental monitoring maritime hydraulics ecohydraulics flood risk modelling and management water related hazards desalination and re-use.
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