|
|
| Bünemann-König, Else; Symanczik, Sarah; Koller, Martin; Menold, J.; Oelmann, Y.; Stemann, J.. |
| Phosphorus (P) in sewage sludge holds the main proportion of P currently lost in waste streams, and options to recycle it for agriculture are needed. Pyrolysis is a promising local alternative to centralized sewage sludge incineration. Pathogens and organic pollutants are destroyed and a carbon-rich substrate known as biochar is formed. We evaluated pyrolysis of sewage sludge as well as sintering of pyrolysis char with alkali salts. The products were applied in a pot experiment with calcareous and acidic soils to determine P uptake by ryegrass (Lolium multiflorum) and changes in soil pH, available P and cation exchange capacity. Two products were also tested in a field experiment with maize (Zea mays) on a neutral soil. Cadmium and mercury were partly... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality Composting and manuring Recycling; Balancing and resource management Nutrient turnover. |
| Ano: 2017 |
URL: http://orgprints.org/31900/1/Phosphord%C3%BCnger%20aus%20Kl%C3%A4rschlamm.pdf |
| |
