Consulta: creatorFacets:"NWOKE, OJI ACHUKA"
Registros recuperados: 4
Data/hora: 13/06/2024 03:38:54

EFFECT OF GROUND INSULATION AND FEED STOCK ON PERFORMANCE OF FIXED DOME BIOGAS DIGESTER
Provedor de dados: 111
Autores: NWOKE, OJI ACHUKA; Okeke, Chukwuka; Chukwuma, Emmanuel; Ime, Chukwuemeka; Ulasi, Ginika; Echiegu, Emmanuel; Omah, Augustine.
The aim of the study is to determine the effect of ground insulation and feedstock on performance of fixed dome biogas digester. To achieve this, six identical fixed dome biogas digesters with volume of 32 liters were designed, constructed and used to carryout anaerobic digestion of three feedstocks namely cow abdominal waste, poultry droppings and 1:1 mixture of cow abdominal waste and poultry droppings. Three digesters were buried underground for insulation while the remaining three kept on the surface uninsulated. The ANOVA result showed that there were significant differences in the slurry temperature, volume of biogas produced and slurry pH respectively at 5% significant levels. The range of pH, Volume of biogas and slurry temperature (ST) in all the...
Tipo: Info:eu-repo/semantics/article
Ano: 2023
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8443

DETERMINATION OF THE CALORIFIC VALUE OF MUNICIPAL SOLID WASTE IN ENUGU, NIGERIA AND ITS POTENTIAL FOR ELECTRICITY GENERATION
Provedor de dados: 111
Autores: NWOKE, OJI ACHUKA; Okonkwo, Wilfred Ifeanyi; Echiegu, Emmanuel Amagu; Ugwuishiwu, Boniface Obinwanne; Okechukwu, Chibueze Henry.
The work aimed at determination of calorific value of  municipal solid waste in Enugu, Nigeria and its potential for electricity generation. Random truck sampling was used according to American Society of Test and Material (ASTM)  in the collection of samples at Ugwuaji landfill site, Enugu, Nigeria and calorific value was determined using oxygen bomb calorimeter. Enugu has a present  population of 882,178 and the amount of municipal solid waste  generated in Enugu was  estimated to be 420 tonnes daily and this resulted in waste generation rate of   0.48kg/capita/day. The average composition of the municipal solid waste  was 39% putrescible, 11% paper, 21% plastics, 5% textile, and 2% metal, 3% glass and 19% others. The average moisture content Volatile...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Municipal solid waste; Calorific value; Composition; Energy content; Electricity.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5061

GIS hotspot Application and Use of Set-Cover Problem For Centralized Abattoir Biogas Plant Treatment Facilities In Anambra State of Nigeria
Provedor de dados: 111
Autores: Chukwuma, Emmanual Chibundo; Orakwe, Louis C; Ugwuishiwu, Boniface O; NWOKE, OJI ACHUKA; Igbokwe, E.
Anambra state is faced with high population explosion and consequently high production of abattoir wastes in major abattoir centres in the state. There is need for strategic waste management in allocation of  bio-energy plants to digest these wastes. ArGIS software was used to perform hotspot Analysis to delineate clusters of abattoir potential features with values significantly higher or lower than the overall study area mean or average value. In addition, the set covering location model was used to determine the number of bio-energy treatment plant facilities that should be constructed in the study area and where they should be located. The result of the study indicated that eight abattoirs were classified as hotspot zones/locations (L), and consequently...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Set Covering; Biogas Plant; Hotspot; Location Modelling; Abattoir Waste.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5098

GIS-BASED SYSTEM ANALYSIS FOR WASTE BIN LOCATION IN ENUGU MUNICIPALITY
Provedor de dados: 111
Autores: Ugwuishiwu, Bonificae Obinwanne; NWOKE, OJI ACHUKA; Okechukwu, Chibueze Henry; Echiegu, Emmanuel Amagu.
Waste collection in Enugu has been a major challenge requiring urgent attention. The aim of the work therefore was to study with GIS the management of the existing bin distribution and collection system in order to determine the optimal frequency for waste collection. The methods adopted include questionnaires, oral interviews and field observations to determine the state of waste collection. Waste collection points both legal and illegal dumpsites were identified using handheld GPS and the points were incorporated into a map using Arc GIS 10.2 software. A total of 177 dumpsite locations were discovered during the study. Illegal dumpsites were 35 in number sand legal dumpsites instituted by ESWAMA were 142. Out of the 142 authorized dumpsites, 55 dumpsites...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dumpsites; Bin Location; GIS; GPS; Solid waste; Collection; System analysis.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5698