TY - JOUR
AU - Bina, Stefano
AB - As is known, leachate produced in a municipal solid waste landfillhas very high concentrations of organic and inorganic pollutionsubstances. Hence when present in deep or surface waters, it producesserious effects on health because of pollution of drinkable watersources. Therefore, in order to correctly define a managementalternative for landfill leachate disposal, an experiment about itsjoint treatment with domestic wastewater in a biological full scaleplant was developed. This treatment method which is the most used inItaly, among the disposal alternatives for leachate, poses problemsconnected with the definition of correct load rates between the twocomponents domestic wastewater and landfill leachate. The experimentwhich it was intended would verify the real feasibility of thetreatment, was conducted over a sixmonth period, on a wastewatertreatment plant in Folzano, Brescia, Italy. Experimentation wasdeveloped by gradually increasing leachate input and maintaining processconditions under analytical control. In particular, metals adsorption bythe sludge and their effect on the efficiency of the process wasmeasured. During the experiment pollution loads on the plant reachedmuch higher values than ones due to domestic wastewater only forexample the ratio between COD due to leachate and COD due to domesticwaste increased to 95. Biological systems have shown a remarkablecapacity for treating leachate, at least concerning COD while theremoval efficiency of nitrogen was negatively influenced by the greatleachate flows. In conclusion, these results show an effectiveapplicability of this solution if the leachate dosage is maintainedunder certain limits and suggest the development of some pretreatmentsuch as ammonia stripping and metals precipitation able to greatlyimprove the biological treatment of the leachate.
TI - Biological Treatment of Landfill Leachate
JF - Environmental Management and Health
DO - 10.1108/EUM0000000002773
DA - 1990-01-01
UR - https://www.deepdyve.com/lp/emerald-publishing/biological-treatment-of-landfill-leachate-2trEllYFgi
SP - 27
EP - 31
VL - 1
IS - 1
DP - DeepDyve
ER -