Title:
Long Term Effect of Treated Sewage Sludge on Energy Crop Production
Author(s):
Bautista, I., Plaza, A., Mauri, P.V., Amorós, M.C., Lobo, M.C.
Document(s):
Paper
Abstract:
The objective of the study was to evaluate the effect of two types of treated sewage sludge as soil amendment, composted with pruning wastes (CP) and thermally dried (ST) on the production of ten woody perennials species for energy purposes. The species used were: Paulownia tomentosa (princess tree), Populus x euramericana (Canadian poplar), Ulmus minor (field elm, tree clones), Ulmus laevis (European white elm), Prunus x amygdalo-persica (adafuel), Tamarix gallica (tamarisk), Salix alba (white willow) and Platanus x hispanica (plane tree). The increase in plant growth three years after amendment application is evaluated with the aim to analyze the long term effect of the treated sewage sludges application on plant production. In general, the plants developed in the soils treated with ST sludge present the highest values of growth (diameter, height and width), which can be due to the faster supply of nitrogen from this material. However, the growth rate was higher in the CP treatment for the most of the species due to a continuous release of nutrients from the CP degradation. In this sense, the effect of CP treatment on plant production would be observed at the longer time than the ST one.
Keywords:
biomass, perennial energy crops, sewage sludge, sustainability
Topic:
Biomass Resources
Subtopic:
Biomass crops and energy grasses
Event:
26th European Biomass Conference and Exhibition
Session:
1DV.5.13
Pages:
369 - 373
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-1DV.5.13
Price:
FREE
