02769naa a2200397 a 450000100080000000500110000800800410001902400520006010000180011224501350013026000090026552015740027465000140184865000180186265000290188065000210190965000250193065000120195565000110196765000110197865300180198965300170200765300190202465300260204365300320206965300270210165300170212865300160214570000210216170000230218270000170220570000220222270000230224470000180226777300860228521264402020-11-10       2020    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1007/s11356-020-09244-82DOI1 aSARDÁ, L. G.  aEffects of dicyandiamide and Mg/P on the global warming potential of swine slurry and sawdust cocomposting.h[electronic resource]  c2020  aAbstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting to increase the compost quality by increasing its NH4 +-N availability.  aAdditives  aDicyandiamide  aGreenhouse gas emissions  aGreenhouse gases  aWastewater treatment  aAditivo  aDejeto  aSuíno  aCocompostagem  aCocomposting  aDicianodiamida  aGás de efeito estufa  aPrecipitação de estruvita  aStruvite precipitation  aSwine slurry  aSwine waste1 aHIGARASHI, M. M.1 aNICOLOSO, R. da S.1 aFALKOSKI, C.1 aRIBEIRO, S. M. S.1 aSILVEIRA, C. A. P.1 aSOARES, H. M.  tEnvironmental Science and Pollution Researchgv. 27, n. 24, p. 30405-30418, 2020.