scholarly journals Potentials for commercial production of biogas from domestic food waste generated in Benin Metropolis, Nigeria

2016 ◽  
Vol 20 (2) ◽  
pp. 369-373
Author(s):  
E.P. Akhator ◽  
D.I. Igbinomwanhia ◽  
A.I. Obanor
Keyword(s):  
Solid Waste ◽  
Food Waste ◽  
Solid Waste Management ◽  
Biogas Production ◽  
Second Phase ◽  
Biodegradable Waste ◽  
Daily Food ◽  
Two Phases

The work reported in this paper investigated the potentials of commercial biogas production from biodegradable waste in Benin metropolis. The study was carried out in two phases. The first phase involved characterization of solid waste generated and determination of the quantity of potential feed stock for biogas production in Benin metropolis and the second phase was determination of the amount of biogas obtainable from biodegradable waste. The results from the study showed that an average daily generation rate of 0.358kg per person per day (ppd.) of solid waste is generated in study area. Food waste accounted for about 78.49% of the generated solid waste representing 0.281kg per person per day (ppd.) and a total daily food waste generation of 305.075tonnes. Based on this value for food waste the obtainable biogas was estimated to be 28,836.91m3 of biogas in Benin metropolis per day. This volume of biogas can provide cooking gas for about 24,076.91 families per month in Benin metropolis or alternatively can be utilised to generate about 49.023MW of electricity per day.Keywords: Solid waste management, food waste, anaerobic digestion, biogas

scholarly journals Recovery of Food Wastes for a Potential Maggot Production as Animal Feed and Solid Waste Management

2021 ◽  
Author(s):  
Kulyash Meiramkulova ◽  
Gulmira Adilbektegi ◽  
Galym Baituk ◽  
Aigul Kurmanbayeva ◽  
Anuarbek Kakabayev ◽  
...  
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Food Waste ◽  
Solid Waste Management ◽  
Animal Feed ◽  
Cost Effective ◽  
Dry Weight ◽  
Average Weight ◽  
Waste Recovery ◽  
Investigation Process

Waste recovery is an important aspect towards human and environmental health protection. Unfortunately, proper food waste management is among the serious challenges in the field of solid waste management worldwide. Therefore, it is of great importance to conduct studies towards achieving efficient and cost-effective approaches for food waste management. This study investigated the potential of recovering food waste through maggots’ production as animal feed. The influence of fly attractant application on maggot production was also investigated. The study also investigated the potential of maggot production for waste recovery and reduction. Four different types of food waste (starch food leftovers, rotten bananas and peels, rotten pineapple and peels, and rotten oranges) were used in the investigation process. From the results, it was observed that the application of fly attractants had a significant effect on the production of maggots as determined by the weights after harvesting. Average weight of 94 g/kg of maggot was achieved from banana materials with an application of fly attractant during the 8th day of the cultivation; which is equivalent to a 32.4% increase from the same day when the material was cultured without applying fly attractant. Also, from the starch materials, about 77 g/kg of maggot weight was achieved; which is a 54.6% increase from the same day and the same material but without application of fly attractant. Moreover, the relative dry weight reduction in the trials varied from 52.5% to 82.4%.

A Framework for Assessment of Existing Solid Waste Management Practices and Characterization of Municipal Solid Waste in Muzzafarnagar City, India

2018 ◽  
pp. 1-18
Author(s):  
Ankur Choudhary ◽  
Rajiv Ganguly ◽  
Ashok Kumar Gupta
Keyword(s):  
Solid Waste ◽  
Management Practices ◽  
Solid Waste Management ◽  
Collection Efficiency ◽  
Chemical Characterization ◽  
Uttar Pradesh ◽  
Msw Management ◽  
Waste Management Practices ◽  
The City

This chapter reports the details of the existing system of MSW management and characterization of Muzaffarnagar City located in Western Uttar Pradesh (UP) state in India. The overall waste generated in the city is about 120-125 tons per day (TPD) with a per capita generation rate of 0.415 kg/person/day with a collection efficiency of 70-80%. Physico-chemical and geotechnical properties of the MSW were carried out to determine its overall characteristics. The characterization results showed about 46% of the waste generated in the city is organic nature (from HIG and MIG) and 52% for (LIG) with chemical characterization showing that the elemental carbon was in the highest proportion. Further, the chapter also recommends suitable remedial measures for proper management of the existing MSW management system and suitable treatment alternatives.

scholarly journals Biogas production for organic waste management: a case study of canteen’s organic waste in Solid Waste Management Technical Support Center, Lalitpur, Nepal

2017 ◽  
Vol 5 ◽  
pp. 41-47 ◽  
Author(s):  
S. Shrestha ◽  
N.P. Chaulagain ◽  
K.R. Shrestha
Keyword(s):  
Carbon Dioxide ◽  
Waste Management ◽  
Solid Waste ◽  
Physicochemical Parameters ◽  
Organic Waste ◽  
Solid Waste Management ◽  
Biogas Production ◽  
Biogas Plant ◽  
P Value ◽  
Organic Waste Management

Management of solid waste is one of the major challenges faced by the municipalities. Solid waste mainly comprises of organic waste. Proper management of organic waste helps minimize solid waste problem. This study was carried out to assess the production of biogas from canteen’s organic waste as a solution for management of organic waste in Solid Waste Management Technical Support Centre, Lalitpur using innovative urban biogas plant with capacity 1,275 liters for 48 days. The physicochemical parameters of canteen’s waste and bio-slurry were analyzed. Similarly, volume of biogas, volume of methane and carbon dioxide in biogas produced were measured and CO2 reduction from biogas plant was identified. The average values of physicochemical parameters of canteen’s waste lied within the optimum range for biogas production. The biogas plant produced 22.03 liters/kg of waste and 120.47 liters/day of biogas. The produced biogas contained 48.89% methane and 39.11% carbon dioxide on average. The biogas plant could reduce 3.20 tones of CO2 equivalent per annum from 262.50 kg of waste fed for 48 days. The values of nitrogen, phosphorus and potassium of bio-slurry indicated it as a better fertilizer. Shapiro-Wilk test showed that the p-value of collected data were greater than 0.05 indicating normal distribution. Linear regression between ambient temperature and biogas production showed that the p-value less than 0.05 indicating significant relationship between them (r2=0.08). The estimated return period of the invested money was 9.5 months in kerosene substitution or 9.7 months in firewood substitution or 9.5 months in LPG substitution. Similarly, the estimated average rate of return was 125.26% in kerosene substitution or 123.72% in firewood substitution or 125.01% in LPG substitution. These results indicated that biogas production using innovative urban biogas plant is better solution for organic waste management. Further extensive and large scale research need to be carried out for the optimization of the biogas plant.

scholarly journals EVALUATION OF ORGANIC AND RECYCLABLE WASTE SEPARATION AT GENERATION SOURCE IN RATNAPURA AND KATARAGAMA LOCAL AUTHORITIES IN SRI LANKA

Detritus ◽  
2020 ◽  
pp. 176-186
Author(s):  
Naofumi Sato ◽  
Chiharu Iida ◽  
Chiaki Nishi ◽  
Anurudda Karunarathna
Keyword(s):  
Sri Lanka ◽  
Waste Management ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Pilot Project ◽  
Pilot Projects ◽  
Local Authorities ◽  
Biodegradable Waste ◽  
Management Plans ◽  
Coconut Shells

The Japan International Cooperation Agency implemented a technical cooperation project from 2017 to 2019 in collaboration with Central Environmental Authority (CEA) in Sri Lanka. The project provided technical; and financial assistances in preparing solid waste management plans at selected local authorities, and consequently implemented 3R promotion programs introducing source separation at households and subsequent separate collection by local authorities. Two pilot projects were implemented based on the solid waste management plans which were aimed at reducing the amount of solid waste to be landfilled. This paper described the approaches taken and results obtained through the pilot projects in Ratnapura Municipal Council (RMC) and Kataragama Pradeshiya Sabha Town (KPS) of Sri Lanka. The pilot project in RMC consisted of distribution of household compost bins and the separate collection of five categories of waste: 1) biodegradable waste, 2) plastic and polythene, 3) paper and cardboard, 4) glass, metal and coconut shells, and 5) other residual waste; and provision of advices to households by leaflets, distribution of equipment, and implementation of an awareness program. The pilot project in KPS consisted of procurement of separation bins for biodegradable waste by cost-sharing with dischargers and the separate collection of three categories of waste: 1) biodegradable waste; 2) recyclables including paper, cardboard, plastic, polyethylene, iron and coconut shells, broken glass and glass bottles; and 3) other residual waste. The post evaluation of waste composition and final discharge amounts at disposal sites indicated that pilot projects have contributed to increase 3Rs in both pilot project areas.

scholarly journals CHARACTERISTICS OF HOUSEHOLD SOLID WASTE IN HUE CITY

2018 ◽  
Vol 55 (4C) ◽  
pp. 168
Author(s):  
Tran Ngoc Tuan
Keyword(s):  
Solid Waste ◽  
Food Waste ◽  
Solid Waste Management ◽  
Daily Basis ◽  
Demographic Characteristics ◽  
Structure Questionnaire ◽  
Household Solid Waste ◽  
Detailed Composition ◽  
Domestic Solid Waste ◽  
Garden Waste

This paper examined the characteristics of household solid waste with a hope of contributing to the improvement of solid waste management in Hue city. The study was conducted by collecting, classifying and measuring household solid waste from 62 households in 7 consecutive days. A structure questionnaire was also used in the interviews with survey households to collect data on their demographic characteristics. The results show that the household solid waste was generated evenly on a daily basis with an amount of 286±171g/person/day during the weekdays. The composition of household domestic solid waste was divided into 17 different groups; of which, the two groups representing the largest amount were food waste (56.35 %) and garden waste (10.89 %). Hazardous waste accounted for a very small proportion (only 0.26 %). The detailed composition ratio of food, garden waste, nylon, paper, plastic, porcelain, etc. and mixed stuff were defined at 56.35 %, 10.89 %, 8.93 %, 3.22 %, 3.22 %, 3.02 %, etc. and 10,23 %, respectively.

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