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JSIR Vol.70(08) [August 2011] >


Title: Nitrogen cycle of effluent-irrigated energy crop Plantations from wastewater treatment to the themochemical conversion processes
Authors: Mayer, Zsuzsa A
Apfelbacher, A
Hornung, A
Keywords: Carbon and nitrogen sequestration
Intermediate pyrolysis
Nitrogen cycle
Nitrogen fixation
NOx emission
Vegetative filters
Wastewater treatment
Issue Date: Aug-2011
Publisher: NISCAIR-CSIR, India
Abstract: This paper reviews nitrogen (N) cycle of effluent-irrigated energy crop plantations, starting from waste water treatment to thermo-chemical conversion processes. In waste water, N compounds contribute to eutrophication and toxicity in water cycle.Removal of N via vegetative filters and specifically in short-rotation energy plantations, is a relatively new approach to managing nitrogenous effluents. Though combustion of energy crops is in principle carbon neutral, in practice, N content may contribute to NOx emissions with significant global warming potential. Intermediate pyrolysis produces advanced fuels while reducing such emissions. By operating at intermediate temperature (500°C), it retains most N in char as pyrrolic-N, pyridinic-N, quaternary-Nand amines. In addition, biochar provides long-term sequestration of carbon in soils.
Page(s): 675-682
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.70(08) [August 2011]

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