Pollution Engineering - November 2008 - (Page 26)

ISLAND Landfill Another design feature is the built-in channels, which allow the flow of seawater into inactive cells, keeping the water fresh at all times. Not another hole Authorities also have painstakingly ensured that the island disposal site will not be operated like other dirty and smelly landfills in the region. The ash and incombustible waste intended for landfilling are first sent to a marine transfer station, which sits on a 7-hectare site on the western end of the main island of Singapore. These wastes are then transferred into barges, which are covered to prevent the ash from being blown into the air. The covered barges then make a 25-km sea journey to the landfill every night, where the waste is unloaded onto dump trucks for the final journey to the operating cells. Bulldozers and compactors are deployed to spread out and compact the waste. Today, after years of operation, the replanted mangroves and remaining natural Shown above is the only break in the bund wall, which is at the southern tip of the island. impermeable membrane and marine clay to prevent leakages. A leachate collection system diverts all leachate to a treatment plant. Regular water testing is carried out from a network of monitoring wells along the perimeter bund to ensure the integrity of the impermeable liners. Railroad Track Spill Containment The best way to keep spilled chemicals or oils from groundwater or stormwater ditches is to capture it before it gets to the ground. Spill Containment is not only a regulation requirement, it is ﬁnancial common sense for any transloading or fueling operation. Anyone developing an SPCC plan should select a best practice method that will help avoid major reoccurring expenses such as oil/water ﬁltration, shoveling snow and debris, and tainted water disposal costs. What are the estimated oily water disposal costs for the next 20 years? 26 PE11084Trans.indd 1 Pollution Engineering NOVEMBER2008 10/9/08 10:22:00 AM http://www.transenvsys.com http://www.transenvsys.com

Table of Contents Feed for the Digital Edition of Pollution Engineering - November 2008

Pollution Engineering - November 2008 Contents The Editor's Desk EnviroNews PE Events Legal Lookout Casebook Canada Environment Management The Green Files Waste Island Phase I ESAs and Vapor Intrusion Meeting the Mercury Target Wet ESPs - The Sky's the Limit Most Successful IFAT China Ever Thermoplastic to the Rescue Install a Trench Without Open Excavations Remediate Impacted Soils Without Accumulation of Metabolites Apply an Alternative to Wet ESP Solve These Common Pump Problems Minimize Risks Handling Ammonia Monitor International Regulatory Developments for Audits Skim Oil and Save Prevent Chemical Vapor Intrusion Spill Control and Containment Products Pumps and Systems Equipment PE Products Classified Marketplace Advertisers Index State Rules

Pollution Engineering - November 2008

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