1180 Partial carbon footprint of milk and interaction between enteric methane and nitrous oxide emissions in grazing dairy farms: The case of Costa Rica

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 566-567 ◽  
Author(s):  
M. A. Wattiaux ◽  
J. P. Iñamagua-Uyaguari ◽  
F. Casasola-Coto ◽  
L. Guerra-Alarcón ◽  
A. Jenet
Keyword(s):  
Nitrous Oxide ◽  
Costa Rica ◽  
Carbon Footprint ◽  
Dairy Farms ◽  
Nitrous Oxide Emissions ◽  
Enteric Methane

Assessing potential impacts of phosphate precipitation on nitrous oxide emissions and the carbon footprint of wastewater treatment plants

2018 ◽  
Vol 40 (16) ◽  
pp. 2107-2113 ◽  
Author(s):  
Pascal Kosse ◽  
Manfred Lübken ◽  
Torsten C. Schmidt ◽  
Ruben-Laurids Lange ◽  
Marc Wichern
Keyword(s):  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Wastewater Treatment Plants ◽  
Nitrous Oxide Emissions

scholarly journals SPECIAL TOPICS — Mitigation of methane and nitrous oxide emissions from animal operations: I. A review of enteric methane mitigation options1

2013 ◽  
Vol 91 (11) ◽  
pp. 5045-5069 ◽  
Author(s):  
A. N. Hristov ◽  
J. Oh ◽  
J. L. Firkins ◽  
J. Dijkstra ◽  
E. Kebreab ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitrous Oxide Emissions ◽  
Methane Mitigation ◽  
Enteric Methane

scholarly journals Methane and nitrous oxide emissions from Canadian dairy farms and mitigation options: An updated review

2016 ◽  
Vol 96 (3) ◽  
pp. 306-331 ◽  
Author(s):  
Susantha Jayasundara ◽  
J.A.D. Ranga Niroshan Appuhamy ◽  
Ermias Kebreab ◽  
Claudia Wagner-Riddle
Keyword(s):  
Nitrous Oxide ◽  
Starch Content ◽  
Dairy Farms ◽  
Dietary Lipids ◽  
Mitigation Strategies ◽  
Nitrous Oxide Emissions ◽  
Ghg Mitigation ◽  
Slurry Storage ◽  
Reduce Emissions ◽  
The Impact

This review examined methane (CH4) and nitrous oxide (N2O) mitigation strategies for Canadian dairy farms. The primary focus was research conducted in Canada and cold climatic regions with similar dairy systems. Meta-analyses were conducted to assess the impact of a given strategy when sufficient data were available. Results indicated that options to reduce enteric CH4from dairy cows were increasing the dietary starch content and dietary lipid supplementation. Replacing barley or alfalfa silage with corn silage with higher starch content decreased enteric CH4per unit of milk by 6%. Increasing dietary lipids from 3% to 6% of dry matter (DM) reduced enteric CH4yield by 9%. Strategies such as nitrate supplementation and 3-nitrooxypropanol additive indicated potential for reducing enteric CH4by about 30% but require extensive research on toxicology and consumer acceptance. Strategies to reduce emissions from manure are anaerobic digestion, composting, solid–liquid separation, covering slurry storage and flaring CH4, and reducing methanogen inoculum by complete emptying of slurry storage at spring application. These strategies have potential to reduce emissions from manure by up to 50%. An integrated approach of combining strategies through diet and manure management is necessary for significant GHG mitigation and lowering carbon footprint of milk produced in Canada.

Methane and nitrous oxide emissions from municipal wastewater treatment – results from a long-term study

2013 ◽  
Vol 67 (10) ◽  
pp. 2350-2355 ◽  
Author(s):  
M. R. J. Daelman ◽  
E. M. van Voorthuizen ◽  
L. G. J. M. van Dongen ◽  
E. I. P. Volcke ◽  
M. C. M. van Loosdrecht
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Municipal Wastewater ◽  
Carbon Dioxide Emission ◽  
Treatment Plant ◽  
Nitrous Oxide Emissions ◽  
Municipal Wastewater Treatment ◽  
Long Term Study

Methane and nitrous oxide emissions from a fully covered municipal wastewater treatment plant were measured on-line during 16 months. At the plant under study, nitrous oxide contributed three-quarters to the plant's carbon footprint, while the methane emission was slightly larger than the indirect carbon dioxide emission related to the plant's electricity and natural gas consumption. This contrasted with two other wastewater treatment plants, where more than 80% of the carbon footprint came from the indirect carbon dioxide emission. The nitrous oxide emission exhibited a seasonal dynamic, of which the cause remains unclear. Three types of air filter were investigated with regard to their effectiveness to remove methane from the off-gas.

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