scholarly journals EMISI DAN ABSORPSI GAS METANA PADA SISTEM PENANAMAN PADI DI AREA TANAH SAWAH

2015 ◽  
Vol 4 (1) ◽  
pp. 42
Author(s):  
Marniati Salim ◽  
Hiyal Faizah ◽  
I Made Sudiana
Keyword(s):  
Rice Field ◽  
Gas Emission ◽  
Methane Gas ◽  
Methane Absorption ◽  
Land Condition

 To know there are emission and methane absorption, research was conduted by measuring directly gas methane at the rice field and absorption with metanotroph bactery using chromatography gas. From the research, we know that there is methane gas emission at the rice field. Watery land condition, emit methane gas (2,309 mg/L) larger than not watery land (0,059 mg/L). At the same time and paddy age is 2 month, it also emit larger methane gas (1,809 mg/L) than 1 month age paddy (1,758 mg/L) and without paddy (0,697 mg/L), whereas for methane absorption at land sample  T0, T1, T2, T3, shows that with fertilizer given can increase the reduction of injected methane gas. Keywords: Absorption, Metanotroph bacteria, Methane gas emission   

scholarly journals Analysis of Reduce Potential Methane Gas Emission by Methanotrofic Bacteria from Rice Field in Gowa

2016 ◽  
Vol 10 (7) ◽  
pp. 183
Author(s):  
Maymuna Nontji ◽  
Baharuddin Patenjengi ◽  
Burhanuddin Rasyid ◽  
Pirman Pirman
Keyword(s):  
Energy Source ◽  
Incubation Period ◽  
Rice Field ◽  
Rice Fields ◽  
Gas Emission ◽  
Gas Emissions ◽  
Gas Concentration ◽  
Methane Gas ◽  
Rice Plants ◽  
Needed Information

<p>The Increase of temperature in atmosphere caused by increasing concentrations of methane in rice field affects to metabolism of rice plants, it can reduce productivity of rice. <em>Methanotrofic</em> bacteria are one of the organisms that can reduce methane gas emissions, because the bacteria use methane as an energy source. Based on the fact, needed information about the reduce potential of methane gas by the bacteria. The aim of this study was to analyze reduce potential of <em>methanotrofic</em> bacteria have been previously isolated that from rice fields in Gowa. The Analysis was done by measuring concentration of methane gas using chromatography gas techniques. Observations of remaining gas concentration were done four times during 13-days incubation period. All isolates were able to reduce methane with varies potential. The highest reduction shown by isolates GMP 2 with the reduction about 88%. The Lowest reduction shown by GMV 3 with the reduction about 51.9%.</p><p><strong>Keywords</strong>: emission, methane, <em>methanotrofic</em></p>

Ground food waste discharge to sewer enhances methane gas emission: A lab-scale investigation

2020 ◽  
Vol 174 ◽  
pp. 115616 ◽  
Author(s):  
Feixiang Zan ◽  
Ji Dai ◽  
Feng Jiang ◽  
George A. Ekama ◽  
Guanghao Chen
Keyword(s):  
Food Waste ◽  
Gas Emission ◽  
Methane Gas ◽  
Waste Discharge

The effect of rice field greenhouse gas emission reduction practice on the contents of amino acids in rice grains

2014 ◽  
Vol 34 (16) ◽  
Author(s):  
许丽卫 XU Liwei ◽  
刘杰云 LIU Jieyun ◽  
汤宏 TANG Hong ◽  
耿梅梅 GENG Meimei ◽  
张丽萍 ZHANG Liping ◽  
...  
Keyword(s):  
Amino Acids ◽  
Greenhouse Gas ◽  
Emission Reduction ◽  
Rice Field ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Rice Grains ◽  
Greenhouse Gas Emission Reduction

scholarly journals Effect of standing water levels on methane gas emission and yield performance of transplanted Aman rice (Oryza sativa L. cv. BRRI dhan51)

2020 ◽  
Vol 5 (3) ◽  
pp. 299-305
Author(s):  
Biddut Kumar Paul ◽  
Muhammad Aslam Ali ◽  
Kallyan Kanty Saha ◽  
Md. Badiuzzaman Khan
Keyword(s):  
Water Level ◽  
Paddy Soil ◽  
Oryza Sativa L ◽  
Static Condition ◽  
Water Levels ◽  
Ch4 Emission ◽  
Gas Emission ◽  
Standing Water ◽  
Methane Gas ◽  
Emission Yield

An experiment was conducted to investigate the effect of standing water levels on methane gas emission and yield of transplanted Aman rice (cv. BRRI dhan51) during July to December 2015 at medium low-lying area of Mohangonj upazila under Netrokona district. The experiment comprised five standing water levels on surface paddy soil viz., 5 cm, 10 cm, 15 cm, 20 cm and 25 cm. Methane (CH4) gas emission, yield components and yield of transplanted Aman rice were significantly affected by standing water levels on surface paddy soil. CH4 emission was gradually increased with rising standing water levels and remained static condition at 20-25 cm water level.  The highest CH4 emission was observed at 20 cm standing water level and the lowest CH4 emission was recorded at 5 cm water level. The highest CH4   peak recorded at 85 days after transplanting (DAT). The highest CH4 flux (36.59 mg/m2/h) was observed in treatment 20 cm water level whereas the lowest CH4flux (21.17 mg/m2/h) was observed in 5 cm water level.  Finally, the CH4 emission dropped at 108 DAT. On and average, the CH4 emission rate during rice cultivation followed 20 cm > 25 cm> 15 cm > 10 cm > 5 cm water level. Soil Eh gradually decreased with progress of time and plant growth and at 85 DAT highly reduced condition developed in all treatments. The maximum reduced condition was observed (-238.67 mV) in treatment 20 cm water level and minimum one (- 214.667 mV) was found in 5 cm water level. The highest grain (5260 kg ha-1) and straw (6725.0 kg ha-1) yields were obtained at 10 cm standing water level while the lowest grain (4191.6 kg ha-1) and straw (5050.0 kg ha-1) yields were recorded in 5 cm and 15 cm water level, respectively. It may be concluded that 10 cm standing water level is beneficial for transplant Aman rice (cv. BRRI dhan51) cultivation in low lying area in respect of grain yield and environmental issues.

scholarly journals Enhancement of Methane Generation from the Sewage by the Addition of Fish Waste ​

2021 ◽  
Author(s):  
ANAND KUMAR VARMA S ◽  
SUVALAKSHMI A
Keyword(s):  
Anaerobic Digestion ◽  
Correlation Coefficient ◽  
Strong Correlation ◽  
Fishing Industry ◽  
Gas Emission ◽  
Fish Waste ◽  
Methane Generation ◽  
Methane Gas ◽  
Experimental Part ◽  
Predicted Values

Abstract Purpose-Fish waste affects the area surrounding and can change a broad oceanfront zone at unlike environment levels by its effluent. In order to reduce the environmental impacts of improper disposal of both fish waste and sewage in the vicinity of the fishing industry in the coastal zone, an attempt has been made to convert the mixture of fish waste and sewage into energy.Findings-The by-product wastes mainly head, bones, skin, gut, tail and sometimes full whole fish waste. The main composition of fish waste is Protein 65%, fat 18% and minerals 17%. So fish waste having a large amount of biodegradable matter when compared to fresh sewage and also by adding higher amount of fish waste we can able to generate higher methane emissions. Methodology-The ultimate aim of the project is to find the optimum methane gas emission from fish waste mixed with fresh sewage using the anaerobic digestion for the experimental part. And for the stoichiometry combustion equation for the theoretical part.Value-Using stoichiometries equations methane gas generated has been calculated from the mixture of sewage and fish waste. Using the Orsat’s apparatus methane gas generated hasbeen measured from the mixture of sewage and fish waste. The correlation coefficient - R2 value is 0.9906 indicating a strong correlation for the predicted values and the measured values.

scholarly journals Study of The Effect of Coal Quality Parameters on Gas Methane (CH4) Emission in Coal Fire for Sustainable Environment

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Reni Arisanti ◽  
Maulana Yusuf ◽  
Muhammad Faizal
Keyword(s):  
Combustion Process ◽  
Calorific Value ◽  
Quality Parameters ◽  
Low Rank ◽  
Ch4 Emission ◽  
Gas Emission ◽  
Methane Gas ◽  
Ch4 Emissions ◽  
Average Temperature ◽  
The Impact

Coal is formation media of Methane Gas which retains the ability to store gas in large quantities. Methane gas (CH4) one of the greenhouse gases that its existence can be troubling, because the gas can increase the impact of global warming, the can damage the ozone layer and increase the temperature of the earth. Methane gas (CH4) emissions that occur in the coal combustion process strongly influenced by the physical and chemical of coal. This research was intended to know how the influence of quality parameters and calorific value of coal methane gas (CH4) emission, and temperature in combustion process. This research is quantitative research with method of quantitative descriptive and descriptive associative approach. Average methane gas emissions (CH4) occurring for each calorific value of coal, calories 5900 kcal / kg 3.98 ppm, 6300 kcal / kg 1.30 ppm, 6700 kcal / kg 0.26 ppm, and 7600 kcal / kg 0.08 ppm. The relationship of temperature, calorific value and methane gas emission (CH4) the higher the calorific value, the required temperature will be greater and the gas emission is smaller, where the calories 5900 kcal / kg average temperature 63.75 oC, calories 6300 kcal / kg average 60,92 oC, calories 6700 kcal / kg average 52,59 oC, while for calorie 7600 kcal / kg average temperature 113,98 oC. Indonesian coal mostly consists low rank coal which can cause high methane (CH4) emissions that would also cause problems to the environment.

Methane Gas Emission in Relation to Livestock: a Review

2013 ◽  
Vol 3 (5) ◽  
pp. 187 ◽  
Author(s):  
Sulochana Shrestha ◽  
Yugal Bindari ◽  
Nabaraj Shrestha ◽  
Tara Gaire
Keyword(s):  
Gas Emission ◽  
Methane Gas

scholarly journals Status of Methane Gas Emission from Paddy Fields in Nepal

2016 ◽  
Vol 4 ◽  
pp. 142-148
Author(s):  
Madhab Joshi
Keyword(s):  
Methane Emission ◽  
Agricultural Development ◽  
Agricultural Research ◽  
National Level ◽  
Secondary Data ◽  
Paddy Fields ◽  
Mitigation Measures ◽  
Gas Emission ◽  
Enteric Fermentation ◽  
Methane Gas

Annual methane emission from paddy fields in Nepal has been estimated based on the published secondary data for 11 years from 2000-2010. Available data were collected from the Ministry of Agricultural Development (MoAD), Department of Agriculture (DoA) and Nepal Agricultural Research Council (NARC). Green house gas emission (GHG) was estimated by using IPCC 2006 guidelines. Agricultural activities contribute directly to emissions of greenhouse gases through a variety of processes including the source categories such as enteric fermentation in domestic livestock, livestock manure management, rice cultivation, and agricultural soil management. Diverse traditional agriculture systems, unique diversities in land types and unavailability of required disaggregated data at the national level as defined by the emission factor data base (EFDB) of the IPCC 2006, were the problem encountered while calculating the emission status in this study. Annual methane (CH4) emission from paddy fields ranged from 111.57 to 133.07 Gg over years 2000 to 2010 but it was found lowest ( 111.57 Gg) in the year 2002 and highest (133.07 Gg) in the year2003. In the year 2010, methane emission from paddy cultivation represented about 17.48 % of cumulative methane emission both from livestock sector and paddy fields throughout Nepal. Also, some relevant policies and potential strategies towards mitigation measures of methane gas emission from paddy fields for the future in Nepal are highlighted.Agronomy Journal of Nepal (Agron JN), Vol.4, Page: 142-148, 2016

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