The waste management system on Langkawi Island, Malaysia - options for waste Treatment

The island of Langkawi, situated in the north west of Peninsular Malaysia, is the one of the major tourist attractions in South East Asia with area of around 360 sq km around 100,000 permanent residents (2010). As a result of tourism the number of visitors to the island could reach more than 2 million a year creating strong pressure on municipal services, especially on the waste management system.

Further authors:
S. Mohd Razi - University of Leeds, UK

Since February 2010, Langkawi Island has been implementing a new waste management system which involved privatization. The new system includes a numbers of activities and facilities including; collection, transportation, treatment, transfer stations, recycling, and disposal, and the selected private company has a 20 years concession to manage the solid waste.
Currently the majority of the waste goes to a non-engineered landfill and there are plans to build a 100 tonne per day incinerator. Like many other sites in the world, land is scarce on Langkawi Island and landfilling is increasingly becoming an unacceptable option. Options for waste treatment are very restricted due to environmental constraints and limited spaces. Composting, recycling and anaerobic digestion treatments are the possible options to minimise the negative impact of waste on the island. The initial analysis has shown that the most viable options for the organic fraction of the waste are composting and anaerobic digestion. Recycling is likely to be restricted as there are no direct uses for the recycled materials on the island and they will need to be shipped elsewhere.
This paper considers the available waste options, with a focus on the optimization of the current practices on Langkawi . The evaluation of the different management options used the current situation as a baseline. The data used for the baseline study generated information on the Global Warming Potential (GWP), human toxicity via air, water and soil, acidification and spoiled groundwater. These parameters are shown on a common baseline using units of equivalent per person impact (PE).
Different scenarios were reviewed for this study using Life Cycle Assessment (LCA). The initial results show that on low emission the best options are separate collection of organic matter, shipping of selected dry recyclables off the island, anaerobic digestion of organic matter with composting of the digestate and landfilling of the residual waste.
Skordilis, A. (2004): Modelling of integrated solid waste management system in an island. Resources, Conservation & Recycling , vol. 41, pp. 243–254.
Agamuthu, P., Fauziah, S.H., Khidzir, K.M., & Noorazamimah, A. A., (2007): Sustainable Waste Management – Asian Perspective. Proceedings of the International Conference on Sustainable Solid Waste Management, 5 - 7 September 2007, pp.15-26. Chennai, India.

Copyright: © European Compost Network ECN e.V.
Quelle: Orbit 2012 (Juni 2012)
Seiten: 0
Preis inkl. MwSt.: € 0,00
Autor: Edward I. Stentiford
John R. Barton

Artikel weiterleiten Artikel kostenfrei anzeigen Artikel kommentieren

Diese Fachartikel könnten Sie auch interessieren:

The new Waste Framework Directive and its impact on textile waste
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
In the course of implementing the circular economy package of the European Union, the Waste Framework Directive was amended recently. Textiles are no longer the poor relation of waste management but have come to the fore.

Reporting of food waste in the EU – Results of current estimates in Germany
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
In February 2019, the German Federal Cabinet adopted the 'National Strategy for Reducing Food Waste', setting a framework for the future direction of this initiative. Among other things, it stipulated that an inter-ministerial "Indicator 12.3 Working Group" should prepare the data bases and methods for nationwide balancing of food waste generation (baseline). Based on existing 2015 data, this status quo analysis will be used as a starting point to agree on milestones for the respective sectors.

Packaging recycling in EU member states – requirements from the circular economy package
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
The EU has established concrete recycling targets for packaging waste for 2025 and 2030. Furthermore, the methodology for calculating the corresponding recycling rates has been amended. The new and stricter calculation methodology will potentially lead to decreases of the current rates. This will be particularly the case for plastic packaging, where denkstatt calculated a gap far above 10 % compared to smaller decreases (> 2 %) to be expected for glass or steel packaging.

Fernwärme wird bis 2030 kohlefrei
© Rhombos Verlag (3/2020)
Politik und Wirtschaft diskutieren über den Beitrag der Müllverbrennung an der Berliner Wärmeversorgung

Aktion Biotonne Deutschland: Die größte Mitmach-Kampagne für mehr Bioabfälle in der Biotonne
© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (3/2020)
Die Aktion Biotonne Deutschland ruft unter dem Motto „Deutschlands Biotonnen Versprechen – für mehr Klima- und Umweltschutz“ zur ersten bundesweiten Mitmach-Kampagne der Branche für Bürgerinnen und Bürger auf. Kommunen und öffentlich-rechtliche Entsorger können sich ab dem 8. Mai 2020 aktiv beteiligen.



 Angemeldet bleiben

Passwort vergessen?

Der ASK Wissenspool
Mit Klick auf die jüngste Ausgabe des Content -Partners zeigt sich das gesamte Angebot des Partners

Selbst Partner werden?
Dann interessiert Sie sicher das ASK win - win Prinzip:
ASK stellt kostenlos die Abwicklungs- und Marketingplattform - die Partner stellen den Content.
Umsätze werden im Verhältnis 30 zu 70 (70% für den Content Partner) geteilt.

Neu in ASK? Dann gleich registrieren und Vorteile nutzen...