Nitrogen transfer from grey municipal solid waste to high quality compost
| Autor: | Willy Verstraete, H Mortier, E Makaly Biey |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Environmental Engineering
Municipal solid waste Renewable Energy Sustainability and the Environment Compost fungi food and beverages Bioengineering General Medicine engineering.material complex mixtures Mineralization (biology) Ammonia chemistry.chemical_compound Green manure Animal science chemistry Agronomy Nitrate engineering Nitrification Waste Management and Disposal Anaerobic exercise |
| Zdroj: | Bioresource Technology. 73:47-52 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/s0960-8524(99)00136-4 |
| Popis: | Ammonia was transferred from an anaerobically digested mixed waste at high pH (due to addition of 10% CaO) to an actively nitrifying, high quality mature vegetable–fruit–garden compost. After 5 days indirect contact with the anaerobic compost, by laying a sieve in-between the two materials, the recipient aerobic compost exhibited a rapid increase in NH4+–N concentration, followed by a subsequent decrease due to nitrification. The nitrifying activity (ammonium oxidation rate) was 94 mg NO2−-N/kg DW·d in the treated aerobic compost. In the non-treated aerobic compost, the activity was 22 mg NO2−-N/kg DW·d. The treated aerobic compost contained 967 mg NO3−-N/kg DW. In the control aerobic compost, the amount was 291 mg NO3−-N/kg-DW. The treated aerobic compost can serve as a readily available N source to ensure rapid crop development. This methodology increases the agricultural value of the compost for areas where industrial fertilisers may not be advisable or available. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect