ECO-FRIENDLY COMPOST FOR SUPPLEMENT OF CARBON SOURCE AND INORGANIC ELEMENTS, COMPRISING PAPER SLUDGE, COFFEE GROUNDS AND STEEL SLAG POWDER

摘要

The present invention relates to an eco-friendly compost for the supplement of carbon source and inorganic elements, including paper sludge, coffee grounds and steel slag powder. More particularly, the present invention relates to an eco-friendly compost for the supplement of carbon source and inorganic elements in various composts, including paper sludge, coffee grounds and steel slag powder, by composting a mixed composition comprising paper sludge produced from a carbon-rich paper making process, coffee grounds left after extracting coffee and steel slag powder rich in inorganic elements.;COPYRIGHT KIPO 2019