The operators of composting plants indicate an average of 45-50 / ton or even 70 / tonne of sludge, including the depreciation of the installation (15 to be able to 20 / ton) ", particulars Primer. The Agricultural Recycling Professionals' Union estimates the global cost of sludge application (including transport, evaluation, spreading and monitoring) at a variety of between 20 and 30 every ton spread. 3 for each tonne. The dryness could be between 21 and 30%. The bulk of uses a service provider that will valorize sludge and monitor surgical treatments.
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