Potential use of leachates from a mechanical biological municipal solid waste treatment plant as fertilizers
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abstract
Leachates produced from treatment plants contains carbon, nitrogen,
phosphorus, potassium and trace elements. This work aims to assess if a
leachate, generated from a mechanical and biological treatment of compost,
can be used as a potential source for fertilizers, and thus develop and design
a sequence of processes which could effectively convert the leachates to
commercial fertilizers according to the requirements of the proposal of
regulation of the European Parliament of 2016. The analysis shows that the
leachate could result in an organo-mineral fertilizer with high organic carbon
content. However, some heavy metals, nitrogen and phosphorous contents do
not fulfill the legislation requirements, and potassium content remains to be
characterized.
Leachates produced from treatment plants contains carbon, nitrogen, phosphorus, potassium and trace elements. This work aims to assess if a leachate, generated from a mechanical and biological treatment of compost, can be used as a potential source for fertilizers, and thus develop and design a sequence of processes which could effectively convert the leachates to commercial fertilizers according to the requirements of the proposal of regulation of the European Parliament of 2016. The analysis shows that the leachate could result in an organo-mineral fertilizer with high organic carbon content. However, some heavy metals, nitrogen and phosphorous contents do not fulfill the legislation requirements and potassium content remains to be characterized.
