Regenerative Energie

Biogas

Biomasse

Erneuerbare allgemein

Energieeinsparung

Erdwärme

Grünes Geld

Klimaschutz

Kraft-Wärme-Kopplung

Meeresenergie

Mobilität

Photovoltaik

Solarthermie

Wärmepumpen

Wasserkraft

Windenergie

content-Partner

Composting of local organic by-products for use as a soil amendment in quarry reclamation in Greece

The feasibility of producing compost for soil amendment in quarry reclamation projects, from locally available organic materiasl in the island of Milos and in Fokis, was investigated. Different mixes, adjusted according to material availability and required compost quality, were composted in lab-scale reactors of 40 l capacity (Colombus Instruments), with continuous monitoring of T, airflow, and O2 consumption and CO2 production as measures of microbial activity.

Mixtures from Milos included seaweed and paper, were N-deficient, necessitating N addition, showed a slow rate of composting and resulted in composts with high conductivity, and in some cases, phytotoxicity. Materials from Fokis included manure and green waste and were far less problematic, resulting to composts with N content of about 3.5 ppm, low conductivity, and GI value above 60% in about 6 weeks. The microbial activity during composting of the Fokis materials was fairly intense, with peak CO2 production rate at 50 ml/kg ds/hr. Transformations of inorganic nitrogen forms were typical for the examined materials and the type of the process in all trials. The stable isotopes ratios (ä13C and ä15N) were determined using IRMS and were shown useful in the investigation of the microbial interactions during the composting process, deserving further investigation.

Copyright:	© European Compost Network ECN e.V.
Quelle:	ORBIT 2003 (Mai 2003)
Seiten:	10
Preis:	€ 0,00
Autor:	Dr. Katia Lasaridi Stamatis Stamatiadis
	Artikel nach Login kostenfrei anzeigen
	Artikel weiterempfehlen
	Artikel nach Login kommentieren

---