Influence of different carbon sources including liquid additives out of fermentation or composting on the purification of leachate water
© Wasteconsult International (5/2017)
Wastewater, like landfill leachate, could lack easily degradable carbon sources. Traditional carbon sources like acetic acid, ethanol, glycerol or alternative carbon sources could be used in the denitrification process as a part of the nitrogen elimination.

Reducing Leachate Treatment Costs, But How?
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2016)
Leachate processing at landfills places significant demands on process technology. Landfill leachate contains a cocktail of various pollutants. In addition to biodegradable nitrogen compounds, this also includes a large number of other organic and inorganic pollutant groups that are fully or partially non-biodegradable. These substances have to be removed from the landfill leachate through cost-intensive physicochemical treatment. The requirements placed on the treated leachate depend on the way it is discharged. Legal framework specifications define the limits for direct or indirect dischargers.

Assessment of biotreatability of mature municipal landfill leachate
© NMC Ltd. (10/2010)
Leachate from municipal landfills contains a complex variety of organic and inorganic compounds. Degradable organics are mainly present at the beginning of landfill operation, while persistent organic pollutants usually appear later as a result of biotic and abiotic processes in the system.

Seasonal variations in municipal landfill leachate quality
© NMC Ltd. (10/2010)
In recent years, solid waste production has been continuously increasing and produced solid municipal and industrial wastes have been mostly disposed on landfills. One from the main environmental problem regarding landfilling is generating of landfill leachate.

Processes of Landfill Leachate Treatment
© NMC Ltd. (10/2010)
Highly loaded waste water is resulting from above ground deposition and treatment of residential waste. Apart from organic pollution, covered in the parameters COD and BOD5, also high nitrogen concentrations and high contents of inorganic ingredients are found. In leachate out of the methane phase heavy metals are mostly irrelevant. If the leachate is arising from a preceding hydrolysis process the pH is usually low. A contamination with heavy metals cannot be ruled out in this case.

The efficiency of municipal landfill leachate nitrification in the rotating biological contactor (RBC)
© Aristotle University of Thessaloniki (6/2009)
The aim of this study was to estimate the nitrification efficiency and the main products of nitrification in dependence on ammonium load in two-stage rotating biological contactor (RBC) system.

Management of industrial waste on sustainable landfills: Influence of the ageing of stabilised/solidified metallic waste on the leaching characteristics
© Aristotle University of Thessaloniki (6/2009)
In this work, products obtained by stabilisation/solidification of electric arc furnace dust at industrial scale have been studied in order to control their leaching pollution in a lifetime on sustainable landfills. Total metallic pollutants, NEN 7341 availability test and three different mobility tests have been studied as basic and compliance characterisation at two different curing ages, 28 and 385 days: EN 12457 batch leaching test at two liquid/solid ratios, 2 and 10 L/kg, and prEN 14405 up flow percolation leaching test have been developed in the end-products.

Characterisation and leaching behaviour of olive mill waste in order to obtain the best management options
© Aristotle University of Thessaloniki (6/2009)
The aim of this paper is to characterise an olive mill waste from Chania, Crete, through total analysis, availability and mobility of the pollutants in different scenarios in order to give the optimal options for its valorisation or disposal.

Landfill wastewater treatment plants (WTP) permeates vs EU directive 2000/60/CE: case study of Polycyclic Aromatic Hydrocarbons (PAHs)
© European Compost Network ECN e.V. (10/2008)
Directive 2000/60/EC requires that permeates discharged in surface waters by landfill leachate treatment plants, respect limit values for priority substances emission.

Physical structure is more important in determining leachate properties of waste-derived organic matter than ‘total’ contents
© European Compost Network ECN e.V. (10/2008)
Diverting biodegradable municipal waste from landfill is a statutory requirement in the UK, under the Landfill Directive.

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