Abrégé

The invention related to a method of making a nutrient additive from electronic waste comprising the steps of: a) adding electronic waste to a reaction vessel; b) admixing the electronic waste and optionally one or more metal catalysts with one or more acids, wherein one or more metals in the electronic waste is dissolved by the acid to form a nutrient additive; and related products, such as fertilisers and soil improvers.

Classes IPC  ?

• C05F 9/00 - Engrais fabriqués à partir des ordures ménagères ou de ville

Abrégé

An organic by-product processing plant comprises a processing vessel (200) in which the by-product can be processed, the processing vessel comprising: a vessel wall (204); a lifting mechanism (222) located in a central region of the vessel and arranged to lift the by-product within the vessel; a metal heat transfer member (209) extending around the lifting mechanism in an outer region of the vessel and rotatable around the outer region of the vessel to resist downward movement of the by-product in the outer region of the vessel and dissipate heat through the by-product in the outer region of the vessel.

Classes IPC  ?

• C05F 1/02 - Appareillage pour leur fabrication
• C05F 3/06 - Appareillage pour leur fabrication
• C05F 9/02 - Appareils pour leur fabrication

Abrégé

The present invention relates to methods of processing organic waste, in particular it relates to a method for making fertiliser from organic waste, especially slow release fertiliser. The present invention also relates to fertilisers made by the method of the invention, especially slow release fertiliser. The method of processing organic waste to provide a slow-release fertiliser may comprise at least one hydrolysis step to provide hydrolysed organic waste and a setting step to provide a slow release fertiliser.

Classes IPC  ?

• C05B 17/00 - Autres engrais phosphatés, p. ex. phosphates naturels, os verts
• C05D 3/02 - Engrais calciques à partir de pierre à chaux, carbonate de calcium, hydrate de calcium, de chaux éteinte, oxyde de calcium, composés calciques résiduaires
• C05F 1/00 - Engrais fabriqués à partir de cadavres d'animaux ou de parties de ceux-ci
• C05F 3/00 - Engrais fabriqués à partir des excréments humains ou animaux, y compris le fumier

Abrégé

An apparatus 1 for producing fertiliser from animal by-product and/or food waste comprising: an inlet 3 for receiving raw animal by-product and/or food waste, a heater 9 operative to heat the animal by-product and/or food waste to a predetermined temperature in the range 50°C to 185°C to form a heated mixture, a catalyst supply unit 11 operative to supply a catalyst to the heated mixture, an acidification supply unit13 operative to supply acid to the heated mixture to form an acidified mixture, a lime mix supply unit 15 operative to supply a lime mix to the acidified mixture to form a pH neutralised mixture; and a bitter compound supply unit 17 operative to supply bitter compounds to the neutralised mixture to form a bitter mixture.

Classes IPC  ?

• C05F 3/00 - Engrais fabriqués à partir des excréments humains ou animaux, y compris le fumier
• C05F 3/06 - Appareillage pour leur fabrication
• C05F 9/00 - Engrais fabriqués à partir des ordures ménagères ou de ville
• C05F 9/02 - Appareils pour leur fabrication