The costly pollution legacy from "dilute and disperse" landfills

Few landfills designed on "dilute and disperse" principles and taking biodegradable or hazardous waste are now being licensed in the UK. But cleaning up the water pollution legacy left by many hundreds of old dilute and disperse sites is likely to be several times more expensive than the cost of dealing with landfill gas hazards, the annual waste management symposium at Harwell Laboratory on 20 May was told.

It would be in vain to search for a firm official statement that the dilute and disperse approach to landfilling - not so many years ago an important component of the UK's waste management policy - has now been abandoned. Yet to all intents and purposes abandoned it has been, though more by atrophy and with some reluctance than as a result of some decisive Government pronouncement of its death.

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