Abstract: The unsustainability of conventional energy resources and their associated environmental pollutions made renewable energy the prime need of present time. Therefore, the research was conducted to investigate the production of biogas from Striga hermonthica co-digested with cow manure through anaerobic digestion with five treatment mix ratios were evaluated under mesophilic conditions (38ºC) using batch digesters in the Botanical laboratory of Haramaya University for 30 days of ferm...
Abstract: Production of biogas through anaerobic digestion of organic waste materials provides an alternative eco-friendly renewable energy source. With the aim of biogas production from codigestion of Cow dung and Ricinus communis leaves, a series of experiments were carried out under mesophilic conditions at 38 ºC using batch fermentation for 30 days. Anaerobic fermentation were carried out by mixing the substrates in five different proportions to obtain suitable mix ratio for maximum bio...
Abstract: Common beans are grown throughout Ethiopia and an increasingly important commodity in the cropping systems of smallholder producers both for food security and income. However, its production is affected by climate change particularly by intensive drought occurrence. The study of genetic variability under moisture stress areas enables selection of drought tolerant genotypes that would give better yields to ensure food security, especially for poor rural farmers. Therefore, this stud...
Abstract: In this study distillery wastewater was treated using the vermifiltration technology in a bid to reduce downstream contamination by the effluent. 10 kg of Eisenia fetida earthworms were used as the vermifiltration media in a 0.5m 0.5m x 0.3m vermifiltration bed over a 40 h period cycle. The distillery effluent physicochemical parameters which included pH, total Kjeldahl nitrogen (TKN), biological oxygen demand (BOD), total dissolved solids (TDS), total suspended solids (TSS) and th...
The world is looking for sustainable solutions in terms of energy and fertilizer production to boost productivity as well as undertake environmental conservation. Green ammonia has other uses apart from the common uses, and easy to crack into hydrogen using sustainable energy.
Table of Content CHAPTER ONE INTRODUCTION 1.1 Background to the study 1.2 Solar Energy and Deep Cycle Battery 1.2.1 Solar Energy 1.3 Definition of Sprayer 1.4 Statement of the Problem 1.5 Aims and Objectives of the Project 1.6 Justification of the Project 1.7 Scope of the Project CHAPTER TWO LITERATURE REVIEW 2.1 Solar Energy 2.2 Solar cells 2.3 ...
Abstract Outlier is a questionable plot value which differs greatly from the mean of all other replications of a specific treatment while trial error may occur as a result of a mistake in measurement or transcription during data collection or entry. The presence of any of the two confounds the inferences made from the data analyses especially the F-statistic whose estimate is based on sample means and variances. This report was intended to show how Genstat statistical software package assists...
Table of Content Introduction Objectives Study design Data collection Results Discussion Recommendation References Introduction Litter is the improper disposal of waste products through human activities (Berglund, Koivula & Eeva 2011). Why people litter? Dropping litter where litter has already accumulated. Lack of knowledge on the effects of litter on the environment. Laziness & Ignorance A promenade is a public walkway, typically along the sea front. The Walvis Ba...
Abstract Recently, the world has begun to experience depletion in energy resources and this issue has become a major concern. Sudan faces a problem with limited fossil fuel resources and an increase in waste accumulation as population growth and economic development play an important role in increasing solid waste generation in addition to increasing energy demand. Sudan is one of the most densely populated countries in Africa, with an annual growth of 2%. We find that about 20% of the popul...
ABSTRACT Sawdust is a major waste produced by the wood industry. Adding value to sawdust through composting is one of the surest means by which environmental pollution could be minimized. About 500 kg of softwood and hardwood sawdust were separately mixed with mucuna leaves and kitchen waste in the ratio of 3:1:1 on weight basis and heaped using effluent from abattoir to develop composts. Objectives of the study were to monitor changes in the physico-chemical properties, NH4 + ‒ N, NO3 ‒ ...
ABSTRACT A survey of, the mycoflora of three seed lots of Pinus caribaea var. hondurensis was carried out using the incubation tests for the detection of seed-borne fungi on agricultural seeds. The seed-borne fungi identified were: t Acromonium sp., Aspergillus flatus, fumigatus,! A. niger, A. tamarii, Botrvtis sp., BotryQdiplQd.i.a theobromae, Chaetomium funicola, £. globosum, £. indiCUTO, Cladosporium oxvsporum, Pendrophpma sp., Fysa.riym ecruiseti, F. moniliforme var. intermedium, Gii-pc...
Introduction to the background of the study: Maize (Zea mays) is the highest produced cereal crop and the most widely consumed food in Ghana with increasing production since 1965 (FAO, 2008; Morris et al., 1999). Maize is cultivated in all the ten regions of the country however the leading producing areas are mainly in the middle-southern part (Brong Ahafo, Eastern and Ashanti provinces) where 84 percent of the maize is grown, with the remaining 16 percent being grown in the northern region...
Ergonomic studies were carried out on selected shoulder-strap brush cutters to evaluate some deficient ergonomic factors associated with their operations. These deficiencies were used as basis for modification. Contextual interview and field interactions were used to obtain ergonomic data that are descriptively analyzed. Results of ergonomic assessment shows that operators are subjected to pains around the neck, shoulders, upper arm and fingers which are largely traceable to shoulder-strap-lo...
With the advent of modern computer technology, the field of Artificial Intelligence is playing a significant role in improving almost every spectrum of human life. In the field of agriculture, there is always need for optimality with improved crop yield. This paper dwells majorly on the application of fuzzy logic to predict crop type with optimal crop yield based on available soil nutrients. Some soil data samples were collected from the department of soil science, Federal University of Agric...
How Much quantity of dung needs to be collected to be used in an Anaerobic Digestion process to make it economically viable? How can the collected dung be used to generate electricity and heat in a combined heat and power? What CHP technology gives you the best electrical to thermal heat ratio?