Despite initiatives for enhanced recycling and waste utilization, landfill still represents the dominant disposal path for municipal solid waste (MSW). The environmental impacts of landfills depend on several factors, including waste composition, technical barriers, landfill operation and climatic conditions. A profound evaluation of all factors and their impact is necessary in order to evaluate the environmental hazards emanating from landfills. The present paper investigates a sanitary landfill located in a semi-arid climate (Tunisia) and highlights major differences in quantitative and qualitative leachate characteristics compared to landfills situated in moderate climates. Besides the qualitative analysis of leachate samples, a quantitative analysis including the simulation of leachate generation (using the HELP model) has been conducted. The results of the analysis indicate a high load of salts (Cl, Na, inorganic nitrogen) in the leachate compared to other landfills. Furthermore the simulations with HELP model highlight that a major part of the leachate generated originates form the water content of waste.
AbichouTKormiTYuanLet al. (2015) Modeling the effects of vegetation on methane oxidation and emissions through soil landfill final covers across different climates. Waste Management36: 230–240.
2.
ADEME (1993) MODECOM (méthode de caractérisation des ordures ménagères), a methodology for municipal solid waste characterization. Report 1601–2766, ADEME, France.
3.
AljaradinMPerssonKM (2013) Proposed water balance equation for municipal solid waste landfills in Jordan. Waste Management & Research31: 1028–1034.
4.
AlslaibiTMAbustanIMogheirKYet al (2013) Quantification of leachate discharged to groundwater using the water balance method and the hydrologic evaluation of landfill performance (HELP) model. Waste Management & Research31: 50–59.
5.
Al-YaqoutAFHamodaMF (2003) Evaluation of landfill leachate in arid climate: a case study. Environment International29: 593–600.
6.
ANGED (2010) Station de traitement des lixiviats à la décharge controlée de Sousse. Rapport trimestriel. Sousse, Tunisia: ANGED.
7.
ASTM (2006) ASTM 2434:2006: standard test method for permeability of granular soils (constant head).
8.
AydiAZairiMBen DhiaH (2014) Quantification of air pollutant emissions from the Jebel Chakir landfill site (Tunis City). Arabian Journal of Geosciences8: 3335–3341.
9.
BallJMBredenhannLBlightGE (1995) Application of minimum requirement for landfill design in Southern Africa. In: Fifth International Landfill Symposium, Cagliari, Italy, 2–6 October.
10.
BergerK (2000) Validation of the hydrologic evaluation of landfill performance (HELP) model for simulating the water balance of cover systems. Environmental Geology39: 1261–1274.
11.
BouzayaniFAydiAAbichouT (2014) Soil contamination by heavy metals in landfills: measurements from an unlined leachate storage basin. Environmental Monitoring Assessment186: 5033–5040.
12.
BrennanRBHealyMGMorrisonLet al (2015) Management of landfill leachate: the legacy of European Union Directives. Waste Management55: 355–363.
13.
ChantouTCathalifaudG FMatejkaG (2013) Seasonal and geographical characterizations of municipal solid waste (MSW) in four Tunisian cities: comparison to French data. European Journal of Science Research94: 501–512.
14.
ChristensenTCossuHStegmannR (1992) Landfilling of Waste: Leachate. London: Elsevier Applied Science.
15.
Di BellaGDi TrapaniDManninaGet al (2012) Modeling of perched leachate zone formation in municipal solid waste landfills. Waste Management32: 456–462.
16.
DixonNJonesDRV (2005) Engineering properties of municipal solid waste. Geotextiles and Geomembranes23: 205–233.
17.
El-FadelMFindikakisANLeckieJO (1997) Modeling leachate generation and transport in solid waste landfills. Environmental Technology18: 669–686.
18.
FellnerJ (2004) A new method for modelling water flow and water storage in municipal solid waste landfills. Vienna University of Technology, Doctoral Thesis, pp. 80–100.
19.
FellnerJBrunnerPH (2010) Modeling of leachate generation from MSW landfills by a 2-dimensional 2-domain approach. Waste Management30: 2084–2095.
20.
FerchichiM (2005) Solid waste management in Tunisia. In: International workshop on landfill leachate: state of the art and new opportunities, Borj Cedria, Tunis, Tunisia, 31 January.
21.
FlemingIR (2011) Indirect measurements of field scale hydraulic conductivity of waste from two landfill sites. Waste Management31(12): 2455–2463.
22.
GiroudJPBonaparteR (1989) Leakage through liners constructed with geomembranes. Part I. Geomembrane liners. Geotextiles and Geomembranes8: 27–67.
23.
GuermoudNOuadjniaFAbdelmalekFet al (2009) Municipal solid waste in Mostaganem city (Western Algeria). Waste Management29: 896–902.
24.
HanBScicchitanoVImhoffPT (2011) Measuring fluid flow properties of waste and assessing alternative conceptual models of pore structure. Waste Management31: 445–456.
25.
INNORPI (1989) Environment Protection – Use of reclaimed water for agricultural purposes – Physical, chemical and biological specifications (in French), Tunisian standards, NT 106.02.
26.
JangYSKimYWLeeSI (2002) Hydraulic properties and leachate level analysis of Kimpo metropolitan landfill, Korea. Waste Management22(3): 261–267.
KjeldsenPBarlazMARookerAPet al (2002) Present and long-term composition of MSW landfill leachate: a review. Critical Reviews in Environmental Science and Technology32: 297–336.
29.
MachadoSLMehranKShariatmadariNet al (2010) Evaluation of the geotechnical properties of MSW in two Brazilian landfills. Waste Management30: 2579–2591.
30.
MarunaISFellnerJ (2012) Solid waste management in Croatia in response to the European landfill directive. Waste Management & Research30: 825–838.
31.
MESD (2013) Environment Status. National State of the Environment Report in Tunisia (RNEE). Tunisia: Ministry of the Environment and Sustainable Development.
32.
PantiniSVerginelliILombardiF (2014) A new screening model for leachate production assessment at landfill sites. International Journal of Environmental Science and Technology11: 1503–1516.
33.
ParameswariKMudgalBV (2013) Geochemical investigation of groundwater contamination in Perungudi dumpsite, South India. Arabian Journal of Geosciences7: 1363–1371.
34.
PradesMGallardoAIbàñezMV (2015) Factors determining waste generation in Spanish towns and cities. Environmental Monitoring and Assessment187: 4098.
35.
ReddyKHettiarachchiHParakallaNet al (2008) Geotechnical proprieties of fresh municipal solid waste at Orchard Hills landfill, USA. Waste Management29: 952–959.
36.
RenouSGivaudanJ GPoulainaSet al (2008) Landfill leachate treatment: review and opportunity. Journal of Hazardous Materials150: 468–493.
37.
RoweRKQuigleyRMBrachmanRWIet al (2004) Barrier Systems for Waste Disposal Facilities. London: Taylor & Francis.
38.
São MateusMSCCostaMSMachadoSLet al (2012) An attempt to perform water balance in a Brazilian municipal solid waste landfill. Waste Management32: 471–481.
39.
SchiopuAMGavrilescuM (2010) Options for the treatment and management of municipal landfill leachate: common and specific issues. Clean Soil Air Water38: 1101–1110.
40.
SchroederPRAzizNMLloydCMet al (1994a) The Hydrologic Evaluation of Landfill Performance (HELP) Model: User’s Guide for Version 3. Washington, DC: US Environmental Protection Agency Office of Research and Development.
41.
SchroederPRDozierTSZappiPAet al (1994b) The Hydrologic Evaluation of Landfill Performance (HELP) Model. Engineering Documentation for Version 3. Cincinnati, OH: US Environmental Protection Agency.
42.
SormunenKEttalaMRintalaJ (2008) Internal leachate quality in a municipal solid waste landfill: vertical, horizontal and temporal variation and impacts of leachate recirculation. Journal of Hazardous Materials160: 601–607.
43.
TatsiAAZouboulisAI (2002) A field investigation of the quality and quantity of leachate from a municipal solid waste landfill in a Mediterranean climate (Thessaloniki, Greece). Advances in Environmental Research6: 207–219.
44.
TiginiVPrigioneVVareseGC (2014) Mycological and eco-toxicological characterisation of landfill leachate before and after traditional treatments. Science of the Total Environment487: 335–341.
45.
TrabelsiIDhifallahTSnoussiMet al (2011) Cascade bioreactor with submerged biofilm for aerobic treatment of Tunisian landfill leachate. Bioresource Technology102: 7700–7706.
46.
WatzingerAReichenauerTGBlumWEHet al (2005) The effect of landfill leachate irrigation on soil gas composition: methane oxidation and nitrous oxide formation. Water, Air and Soil Pollution164: 295–313.
47.
WuHWangHZhaoYet al (2012) Evolution of unsaturated hydraulic properties of municipal solid waste with landfill depth and age. Waste Management32: 463–470.
48.
XuQKimHJainPet al (2011) Hydrologic evaluation of landfill performance (HELP) modelling in bioreactor landfill design and permitting. Journal of Material Cycles and Waste Management14: 38–46.
49.
YangNDamgaardAKjeldsenPet al (2015) Quantification of regional leachate variance from municipal solid waste landfills in China. Waste Management46: 362–372.
50.
ZairiMAydiABen DhiaH (2013) Leachate generation and biogas energy recovery in the Jebel Chakir municipal solid waste landfill, Tunisia. Journal of Material Cycles and Waste Management16: 141–150.
51.
ZairiMFerchichiMIsmailAet al (2004) Rehabilitation of El Yahoudia dumping site, Tunisia. Waste Management24: 1023–1034.
52.
ZhangQTianBZhangXet al (2013) Investigation on characteristics of leachate and concentrated leachate in three landfill leachate treatment plants. Waste Management33: 2277–2286.
