Design and Construction of an Experimental Biodigester in the Senkerfa Poultry Farm in Kankan,Guinea  

作　　者：Amadou Sidibe Ansoumane Sakouvogui Idrissa Diaby Mamby Keita 

机构地区：[1]Department of Physics,Faculty of Natural Sciences,Julius NyéréréUniversity of Kankan,BP 209,Guinea [2]Energy Department,Higher Institute of Technology of Mamou,BP 63,Guinea [3]Department of Physics,Faculty of Sciences,Gamal Abdel Nasser University of Conakry,BP 1147,Guinea

出　　处：《Journal of Environmental Science and Engineering(A)》2022年第5期162-170,共9页环境科学与工程（A）

摘　　要：This study is a continuation of our research work on the energy recovery of OM(Organic Matter)and the protection of the environment.It took place from October 1 to November 25,2021 in the poultry farm of Mr.Elhadj Daye KABA in the Senkefra district,urban commune of Kankan.During this work,we designed,built and tested a 6 m^(3)biodigester.Cow dung(2,500 kg)with 2,300 L of water served as a substrate for the production of biogas during 30 days of digestion.The following physico-chemical parameters:Temperature(T°C),Humidity(H%),Hydrogen potential(pH),Dry Matter(DM),Organic Matter(OM)and the ratio between Carbon(C)and Nitrogen(N)(C/N)of cow dung were determined,namely:T(28°);H(75%);pH(6.5);MS(15%);MO(55%)and C/N(25%).During the 30 days of digestion,the temperature varied from 27 to 35°C with an average of 30.57°C(mesophilic digestion);the pH varied from 6 to 9,with an average of 7.58;the daily production kinetics represented the four stages of digestion(hydrolysis,acidogenesis,acetogenesis and methanogenesis).The cumulative production of biogas is 198 m^(3).The composition of the biogas produced is 60%CH_(4),36%CO_(2),2%N_(2),2%H_(2)S and 1.5%H2.The biogas produced was used for lighting,water heating and cooking.These results show that the biogas produced is of good quality and remains consistent with the literature.

关 键 词：Biodigester BIOGAS design FARM COW DUNG Kankan 

分 类 号：F42[经济管理—产业经济]