African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007

AJEST Articles in press

Analysis of the deposit conditions of sedimentary series of fluvio-lacustrine and aeolian origin in the Djourab desert, in northern Chad

Article in Press

The detailed sedimentary study of the deposit sequences of the ancient hominid sector (SahelanthropustchadensisalisToumaï) of Toros-Menalla, presented here addresses new aspects of the sedimentary geology of the Chad Basin through an original field study of Moi- sediments. Pliocene of the northern basin of CHAD. This is an original contribution that sheds light on new knowledge of sedimentary series of fluvio-lacustrine...

Author(s):Moussa Abderamane

An Analytical Assessment of Climate Change Trends and their Impacts on Hydropower in Sondu Miriu River Basin- Kenya

Article in Press

Hydropower is cost effective environment friendly and worldwide proven sustainable energy source. Driven by streamflow stream flows, it is vulnerable to climate change and land use change. The hydropower production from the two-existing run-of-river hydropower projects on the Sondu Miriu river are vulnerable to rainfall variability and requires proper understanding of the climate change trends and policies to support...

Author(s):Ochieng Willis Owino, Oludhe Christopher, Dulo Simeon, Olaka Lydia

Uroclhoa mosambincensis A POTENTIAL NATIVE PHYTOREMEDIATOR FOR SOILS CONTAMINATED WITH ARSENIC

Article in Press

Industrial development has caused the contamination of the environment, leading to biodiversity loss and human health concerns. The use of native plants and/or their associated microbiota is a sustainable solution for reducing or transforming contaminants into less harmful forms. We aimed to evaluate the remedial potential of Uroclhoa mosambincensis in soils contaminated with arsenic. In a greenhouse experiment, seedlings...

Author(s):Sónia Isabel Ventura Guilundo, Marta Alberto Aduge, Edmilson Enes Manuel Simango, Domingos Maguengue, Esnaider Rodríguez Suárez, Célia Marília Martins, Orlando António Quilambo

Assessment of healthcare waste Pyrotec model 8 incinerator efficiency as a performance indicator at Muhimbili National Referral Hospital in Dar es Salaam, Tanzania

Article in Press

The performance of a healthcare waste Pyrotec Model 8 incinerator at Muhimbili national referral hospital in Dar es Salaam - Tanzania was investigated using two different types of healthcare wastes namely sharps waste and other waste (mass/weight) and as fractions. The other independent factor used in the investigation was diesel oil consumption. The Pyrotec Model 8 incinerator performance was evaluated by determining how...

Author(s):William Wanasolo and Samwel Victor Manyele

Environmental Contamination and Assessment of Heavy Metals in Water and Sediments of Awash River and Its Selected Tributaries

Article in Press

Awash River is considered as most important river for the surrounding community, but it is vulnerable to anthropogenic activities. Thus, the present study was investigated about the pollution status of Cr, Cu, Mn, Cd, and Pb and their ecological risk in aquatic system of Awash River. Water and sediment samples were collected from selected sampling sites of the river and its tributaries and samples were analyzed. The...

Author(s):Tizazu Hailemariam, Habtamu Wodajo, Alemayehu Esayas, Birhanu Hailu

PHYSICOCHEMICAL ANALYSIS OF STAGNANT SURFACE WATER USED FOR DRINKING PURPOSES FOR LIVESTOCKS IN JARAR ZONE SOMALI REGIONAL STATE OF ETHIOPIA

Article in Press

This research was carried out to investigate the physicochemical parameters of livestock drinking water samples collected from Falfal, Degehabur and Bulale areas in Somali regional state of Ethiopia. The objective of this research was to analyze the physicochemical parameters of water ponds used for livestock drink. The result was recorded that, the pH, Temperature, Total Dissolved Solid and Total hardness was 7.17±0.03,...

Author(s):Abi Legesse, Fantahun Adamu

Pollution Assessment of Light Rare Earth Metals in Sediments of the Ogun River

Article in Press

This research was aimed at determining the concentrations of light earth metals in sediments of the Ogun River as well as their pollution and contamination status. Sediment samples collected using a graduated hand held sediment grab were stored in polythene bags and transported to the laboratory in an ice chested cooler. At the laboratory, the sediment samples were air dried, pulverized and sieved. Induced Couple Plasma...

Author(s):Diayi, M.A., Gbadebo, A.M., Arowolo, T.A. and Awomeso J.A

Assessment of Solid Waste Characterization in Keffi LGA, Nasarawa State, Nigeria in View of Adopting Biogas Technology for Solid Waste Management

Article in Press

The assessment of solid waste characterization in Keffi Local Government Area in view of adopting biogas technology for solid waste management was carried out. This was achieved through assessment of the quantity of solid waste generation and the composition in the study area. Materials used for data collection are weighing scale, waste bins and questionnaire. Stratified and systematic samplings were used to select...

Author(s):Abugu Nkechinyere Anthonia

ASSSESSMENT OF THE PHYSICO-CHEMICAL PROPERTIES OF BOREHOLE WATER IN GWAGWALADA AREA COUNCIL ABUJA, NIGERIA

Article in Press

The assumption that borehole water is safe for drinking purpose was verified by empirical study of the physico-chemical properties of borehole water in Gwagwalada Area Council Abuja, Nigeria. The physico-chemical properties of borehole water were anaysed and compared with regulatory standards for drinking purpose. Fifteen samples were collected from five purposely selected wards (Dobi, Ibwa, Tungan-Maje, Zuba and Ikwa) in...

Author(s):Abugu Nkechinyere Anthonia, Oladeinde Olufemi Stephen, Dada Ibilewa and Mustapha Aliyu

Improving future temperature projections with bias correction methods in Lake of Guiers/Senegal

Article in Press

Climate models are generally used to evaluate the climate change impacts. However, they have important biases at the regional or local scales. This study evaluates the future temperature projections in Lake of Guiers/Senegal. For this, we used the daily maximum and minimum temperature from the ensemble mean of five (5) CORDEX (Coordinated Regional climate Downscaling Experiment) regional climate models (RCMs) under the...

Author(s):Alioune Badara Sarr

Innovative technology trumpeting for bringing country’s total sustainable prosperity –A case of Burkina Faso and neighboring countries

Article in Press

With time population and needs have changed many folds and at the same time researchers endeavored to enhance resources and their productivities world over. There have been some noble innovations of universal applications and bring fast improvement in the situations. Objective of the present study was to collate innovations which improve different sectors of needs in Burkina Faso, where socio-economic condition has worsen...

Author(s):R.C. Yadav

BENTHIC MACROINVERTEBRATES IN THE BIOMONITORING OF A NIGERIAN COASTAL WATER

Article in Press

Most coastal waters are exposed to high influx of pollutants due to the obvious elevated human activities. In order to adequately evaluate the extent of toxicity of contaminants in the ecosystem, and their synergistic effects, marine ecologists prefer biomonitoring to chemical approach. The benthic macroinvertebrates, due to their sedentary mode of life and residence at the sediment-water microcosm, are regarded as the...

Author(s):Joseph A. Nkwoji

2.2’-DIPHENIC ACID: A RELIABLE BIOMARKER OF PHENANTHRENE BIODEGRADATION

Article in Press

Phenanthrene is among the 16 priority pollutants thus its mitigation in the environment has been a global concern. It serves as a model compound for the biodegradation study of polyaromatic hydrocarbons (PAHs) because it has both the Bay- and K-region found in most PAH pollutants. Like other PAH pollutants, different means are available for its remediation in the environment, including microbial biodegradation. The...

Author(s):Emmanuel Oliver Fenibo

Geography Information System (GIS) and Remote sensing Based Flood Risk Assessment and Mapping: The Case of Dikala Watershed in Kobo Woreda Amhara Region, Ethiopia

Article in Press

Floods are the most devastating natural occurrences that affect both natural and manmade features existing on the earth's surface. The study area found in the low laying areas of Amhara Region characterized by intensive human activities, a steep slope, heavy rainfall during summer with high drainage density and dominantly verti soil type, proximity to the river were identified as the main factor increasing flood risk....

Author(s):Wondim Almu Ayenew, Kassahun Wubalem Bantie and Hailu Ayene Kebede

Assessment of Farmers Adaptive Capacity to Climate Variability in the Federal Capital Territory (FCT), Abuja, Nigeria

Article in Press

The study assessed the adaptive capacity of crop farmers in the six Area Councils of FCT using Geoinformatics. Socio-economic indicators were used to map the adaptive capacity of FCT farmers to climate variability from 1981-2017. The arable crops considered are: yam, beans and maize. The selected climatic variables based on their importance to crop production are: rainfall, temperature, relative humidity and potential...

Author(s):Dada Ibilewa, Samaila K. Ishaya and Joshua I. Magaji, Mustapha Aliyu

Analysis of Land use and land cover changes detection within urban watersheds: The case of Addis Ababa Ethiopia

Article in Press

Watersheds around Addis Ababa are critically threatened by rapid urbanization expansion. This study aims to explain the rate of urban expansion and interaction with communities around the city. GIS and RS were used to evaluate the Land use and Land cover changes and urban expansion in the last 30 years using Landsat images and selected households. Results revealed that agricultural/bare land increased by 29.02% from 1984...

Author(s):Bereket Tesfaye Haile, Kassahun Ture Bekitie and Alazar Alemayehu

Briquette Production from Sugar Cane Bagasse and its potential as clean source of energy

Article in Press

Large quantities of bagasse are regularly accumulated on open spaces around sugar factory thereby endangering fragile ecosystem. The sugar cane bagasse carbonization process can be put in to effect as an environmentally friendly, energy self-providing continuous flow technology. Therefore, the objective of this study was to use bagasse for the production of high caloric value briquette to safeguard the environment from...

Author(s):Messay Emana Getu, Birhanu Ayalew Abebe, Mulissa Jida Midekssa and Genet Tsegaye Araya

A Community Perspective of flood occurrence and weather forecasting over Kampala City

Article in Press

Weather and climate issues have become increasingly recognized among the global challenges especially in the era of climate change. Kampala city has faced a number of flooding events in the past that have led to serious damages in many low lying areas of the city. A study was conducted in one of the flood prone areas in Kampala city to understand the community perspectives on flood occurrence and weather forecasting in the...

Author(s):Nimusiima Alex

IMPACT OF MINING ON ENVIRONMENT: A CASE STUDY OF TAITA TAVETA COUNTY, KENYA

Article in Press

Research on the impacts of mining on the environment was conducted on nine purposive selected mining sites in Kamtonga and Mkuki, Taita Taveta County, Kenya. The FOLCHI method was adopted to quantify the environmental impact of mining activities in gemstone mining sites. The affected environment surrounding the pits was broken down into three components such as Topography, Vegetation and Air. The effect of the three...

Author(s):Irene Wakio Mwakesi, Raphael Githiga Wahome, Daniel Weru Ichang’i

Increase Soil Condensation Capacity for Agricultural Purposes

Article in Press

The issue of water scarcity in many parts of the world, especially in arid and semi-arid regions, is a major dilemma. The amount of moisture for plants is not comparable to rain, but in arid areas, it is a huge contribution to plant water supply. In this research, the effect of using Peltier to improve soil condensation by performing several tests was studied in order to investigate the possibility of increasing soil...

Author(s):Samane Arvandi, Forood Sharifi

Characterization of healthcare waste in Tanzanian zonal referral hospitals as a key factor for energy recovery

Article in Press

In this study, healthcare waste (HCW) generated in four referral hospitals in Tanzania namely: Muhimbili National Hospital (MNH), Kilimanjaro Christian Medical Center (KCMC), Bugando Medical Center (BMC) and Tumbi Regional Referral Hospital (TRRH) was characterized to establish its feasibility for energy recovery. The HCW collected and loaded into the incinerators was weighed and its composition determined (as highly...

Author(s):P. R. Mwaria , M. E. Kaseva, S. V. Manyele

CLIMATE MODELS BIASES AND CORRECTION METHODS EVALUATION IN MOUHOUN RIVER BASIN, BURKINA FASO

Article in Press

Projected climate change in the Sahel region could strongly affect water resource availability and further compromise food security. Like other Sahelian countries, water resources in Burkina Faso face this threat. This study evaluates five precipitation bias correction methods on climate models outputs in the Mouhoun river basin. Climate Hazards InfraRed Precipitation with Stations (CHIRPS) products merged with Comité...

Author(s):Mahamadi TABSOBA, Abdou ALI and M'po Yèkambessoun N'TCHA

Physicochemical and metal quality evaluation of the ground water of the chief town of Sinthiou Maléme Commune in Tambacounda (Senegal)

Article in Press

In the countries underdeveloped in particular in medium rural, the subsoil waters constitute an invaluable resource but they remain fragile and vulnerable because of the demographic pressure, of the uncontrolled exploitation of the discharges, the absence of system of adequate cleansing and of husbandries. This present work aims to evaluate physicochemical and metal quality waters of 10 wells collecting the ground water of...

Author(s):Maoudo hane; Ibrahima diagne; Momar ndiaye; Cheikh Tidiane dione; Dame cisse; Birame ndiaye; Abdoulaye diop

HYDROLOGICAL RESPONSE TO LAND USE AND LAND COVER CHANGES OF RIBB WATERSHED, ETHIOPIA

Article in Press

The analysis examined the Covering the surface within the catchment and its effect on the catchment's hydrological responses. The Soil and Water Assessment Tool (SWAT2009) model was wont to investigate the impact of land cover change on hydrological responses of the study area. Sensitivity analysis result shown SCN curve number (CN), Soil Evaporation Compensation Factor (ESCO), Soil Depth (m) (Sol_Z), Threshold water...

Author(s):Solomon Bogale Aynalem

Strategic Factor Analysis of Solid Waste Management in Southwestern Ethiopia: The Case of Jimma Metropolitan City

Article in Press

Introduction: Solid waste management is a cosmopolitan environmental problem confronting humanities and metropolitan authorities by contributing 80% of all diseases and related mortality. There is low commitment in managing urban environmental issues. Consequently, Solid waste disposal is an important environmental area of concern since information is barely available in the study area. Objective: To measure solid waste...

Author(s):Berhanu Megerssa

Optimizing Community Participation in the management of Yala Wetland Ecosystem, Lake Victoria Basin, Kenya: The Yala Hub Framework

Article in Press

Wetlands are one of the world’s most important environmental assets which experience complex challenges. Wetlands’ sustainability require meaningful participation of the riparian communities in their management, yet this remains a challenge. Yala Wetland is a very important resource whose key challenges revolve around land and water resource use for competing interests and from catchment degradation. Consequently,...

Author(s):Douglas Ouma Odero and Victor A.O. Odenyo

ASSESSMENTS OF THE LEVELS OF HEAVY METAL CONCENTRATIONS AND HEALTH RISK IN VEGETABLES FROM HAWASSA INDUSTRIAL ZONE ETHIOPIA.

Article in Press

Concentration of heavy metals (Cr, Ni, Cu, Zn, As, Cd, Pb and Hg) in two vegetables (cabbage and potatoes) were determined and the potential health risks due to the consumption of the vegetables were estimated. Mean concentrations of Zn (134.0+5.62 mg/kg), As (0.12+0.01 mg/kg) and Cd (0.32+0.01 mg/kg) in cabbage from Biological Lagoon area and Zn (103.0+8.34 mg/kg), As (0.14+0.01 mg/kg) and Cd (0.31+0.01 mg/kg) in cabbage...

Author(s):Samuel Bekele Gujo, Solomon Sorsa Sota, Daniel Fitamo Arficho, Zinabu Gebremariam Weldesenbet and Gunnhild Riise

Preparation and characterization of Zeolite-Zinc Oxide Nano composite for Removal of Nitrate from Spike water

Article in Press

Nanomaterial assisted removal of pollutants from water has got great attention. This study aimed to evaluate the removal of nitrate using zeolite and zeolite-ZnO nanocomposite. Zeolite-ZnO nanocomposite was prepared by the co-precipitation method. The physicochemical characteristics of the nanomaterials were determined using XRD, SEM, FTIR, and its chemical composition was determined using AAS. The results revealed that;...

Author(s):Temesgen Getahun, Tadesse Alemu, Andualem Mekonnen

Variability and Time Series Trend Analysis of Climate and Local People’s Perception in Janamora Woreda, Northwest Ethiopia

Article in Press

Climate variability and change is the significant environmental and global threat of the current century. This study analyzed variability and time series trend analysis of climate from 1981-2018 and local people’s perception towards climate change in Janamora Woreda, Northwest Ethiopia. Primary data was collected through a household survey from 138 respondents selected by multi-stage sampling method. Secondary data was...

Author(s):Adamsew Marelign

Evaluation of outdoor human thermal comfort conditions in selected streets of Nairobi City's Centre

Article in Press

This paper evaluated the outdoor human thermal comfort conditions for urban heat island management in Nairobi city. Environmental parameters were measured at microclimatic and instantaneous scales on a typical summer day in Nairobi City's Centre's selected streets. The RayMan software package and ENVI-met v4.0 BETA model were used to evaluate both measured and simulated physiologically equivalent temperature (PET) to...

Author(s):Emmanuel Ochola Matsaba, Ines Langer, Aggrey Ochieng Adimo, John Bosco Mukundi and John Mwibanda Wesonga

Assessment of toxic and essential trace metals in Unwana borehole water in Afikpo North, Ebonyi State

Article in Press

Water samples labeled A, B, C, D and E from five different boreholes in Unwana were analyzed to assess the level of toxicity and essential trace elements present. The results obtained showed slight variation in temperature for all the samples, having sample B, recording the highest values of 28 oC. As for pH, sample B recorded a pH of 6.58 which lies within the limits recommended by WHO. For the trace metals, Cd(II),...

Author(s):Ndukwe, M. K., Igara C. E. And Idara,A.E

Effectiveness of the Implementation of Plastic Bags Ban: Empirical Evidence from Kenya

Article in Press

Purpose – The purpose of this paper is to assess the effectiveness of the implementation of plastic bags ban in Nakuru town, Kenya. Design/methodology/approach – Descriptive cross-sectional research design was adopted for the study. The target population comprised of 500 traders in Nakuru retail market located in Central Business District. Stratified sampling techniques were used to pick a sample size of 167...

Author(s):Wahinya M.K. Paul and Mironga J.M.

Adverse Impact of Climate change on Mambioko Community dependent Forest and Local Perception on vulnerabilities and Responses-Centre Region of Cameroon

Article in Press

This study was undertaken to identify and assess climate change vulnerabilities and impacts on the livelihoods of forest dependent communities in Mambioko community forest in the Centre Region of Cameroon. Primary data was collected from 120 households; key informants, focus group discussions and was supplemented with secondary data from desk review of relevant literature. Forest resources were generally perceived by...

Author(s):Tieminie Robinson Nghogekeh and Chia Eugene Loh

Analysis of Urban Solid Waste Management Practices and Determinants Using Contingent Valuation Method

Article in Press

This research was conducted aiming at addressing environmental quality by assessing the waste discharging practices of households, identifying the most significant variables affecting willingness to pay for urban solid waste management and the cost that can be saved because of the improvement in waste management techniques in Mizan-Aman town. Contingent valuation coupled with logistic regression method of analysis was...

Author(s):Tesfaye Yirssaw Bizuneh

Socio-economic and health status of rag pickers in the dump site of Mekelle city, Northern Ethiopia

Article in Press

Rag pickers are people who collect recyclable and reusable materials from mixed wastes in cities. A cross sectional survey on socio economic and health status among randomly selected rag pickers in the dump site of Mekelle city, Ethiopia was done during 2019. The study showed that all rag pickers were males with age of 19 to 25 years and 60% of them were educated up to secondary level. They worked continuously for 12...

Author(s):Mulu Gebreslassie and Prakasam Vadakkedath Raman

EVALUATION OF QUANTITY AND QUALITY CHARACTERISTICS OF BIODIESEL PRODUCED FROM JATROPHA CURCAS IN KENYA

Article in Press

Jatropha curcas is a species of flowering plant in the spurge family, Euphorbiaceae, which is native to the American tropics, most likely Mexico and Central America. It is cultivated in tropical and subtropical regions around the world, becoming naturalized in some areas. Jatropha curcas is a non-edible oil crop predominantly used to produce bio-diesel. The seeds contain 27-40% oil (average: 34.4%) that can be processed to...

Author(s):James M. Onchieku, Tracey Cheptoo, Eucharia Kenya, Fathiya Khamis, Richard Okoth Oduor

Consequences of crude oil pollution on the Niger Delta Environment

Article in Press

The consequence of crude oil pollution on the sediments in the mangrove rhizosphere in the Niger Delta environment was examined in this study. Propagules of Rhizophora racemosa name of the author of species (red mangrove) were sown in plastic buckets containing 10 kg sediment, polluted with different concentrations (0%, 5%, 10%, 15% and 20%) of Bonny light crude oil, on weight/volume basis. Sediment samples from these...

Author(s):Emuedo, O.A., Ubani, S.E., Uwumarongie, A.M.D., Chukwuka, A.N., Omorogbe, J.A., Ugiagbe-Ekue, U., Omoruyi, J.I

Spectral predictions of rainfall extreme event in Eastern Ethiopia

Article in Press

Ethiopia is one of the countries whose economy is highly dependent on rain-fed agriculture and is also facing recurring cycles of flood and drought. Climate variability imposes a significant challenge in the country. Consequently, this paper intends to predict the frequency of extreme rainfall in Eastern Ethiopia. Descriptive statistics, and spectrum analysis were used for analyzing 71 year annual rainfall data obtained...

Author(s):Rediat Takele Figa, Takele Geta and Solomon Geberetsedik

Distribution of Nutrient Salts and Chlorophyll-a in Surface Water along Gulf of Aden and Arabian Sea Coast, Yemen

Article in Press

The distribution of inorganic nutrient salts (NH4, NO2, NO3, PO4 and SiO4) and phytoplankton chlorophyll-a (Chl-a) were investigated in the Gulf of Aden and Arabian Sea coast, Yemen. Seventy tw72o surface water samples were collected during cruises in August 2014 and January 2015. The sampled area extends from As suqayyah in the west of Gulf of Aden to Hawf in the east. The study showed that the average values of nutrient...

Author(s):Ibrahim A. Al-Akhaly, Nabil A. Al-Shwafi and Shehab A. Al-Kabsh

Assessment of the effect of solid waste dump site on surrounding soil and river water quality in Teppi town, Southwest Ethiopia

Article in Press

Background: An increase in the urban population and the rising demand for food and other essentials perpetuate a rise in the amount of waste being generated daily by each household. In Ethiopia, this waste is eventually thrown into open dump sites. It can causes severe impact on soil and surface water quality. As a result, it can be the probable source of human health risk through food chain. Therefore, this study was...

Author(s):Besufekad Mekonnen, Alemayehu Haddis, Wuhib Zeine

Securing Land Rights: Geomatics Approach

Article in Press

Most lands in Africa are claimed and managed by indigenous peoples and local communities. But it is disheartening that most African governments do not seem to recognize the rights of these customary land owners. This will give room for the proliferation of poverty, rights abuses, land grabs and land disputes. Securing land rights has been a priority of the international development sector for decades, Nigeria not being an...

Author(s):Adewara M. Babalola & Odeyemi K. Abilodun

Soil Nutrient Variations Between Soil Depths (0-20cm & 20-40cm) Around Cement Factories, Ethiopia

Article in Press

This study was conducted with an aim to analyze the spatial variability of soil properties with depth under cement dust pollution areas. In soil there is nutrient variation in different depths, the variations can also affected by the anthropogenic factors. In this study, the nutrient variation between soil depths (0-20cm & 20-40cm) in cement dust pollution fields has been assessed. A total of 72 soil samples from 0-20cm &...

Author(s):Yohannse Habteyesus Yitagesu, Kebede Dinkecha

Examining the reduction of oil pollutants in the soil by biological methods

Article in Press

The increase in the use of fossil fuels to meet the energy needs by the industries has led to pollution and tensions in the environment. By entering to water, oil, and weather ecosystems, pollution from the use of Petroleum Hydrocarbons (PHC) has led to irreparable damage to the health of humans, living organisms and the environment. Thus, the reduction of pollutants from the entry of these compounds into the environment...

Author(s):Morteza Kashefi Asl

Dumpsite Waste Picker’s Occupational Risk Factors and their impacts, awareness and its relationship to waste recovery practices in Thika and Nakuru towns of Kenya

Article in Press

Dumpsite waste pickers face stigma, harassment and exposure to occupational health and safety risk factors despite their important role in waste materials recycling. The purpose of the study was to evaluate the risk factors that the pickers were exposed to and their impacts, level of awareness on occupational health and safety and its relationship with waste recovery practices. The population of the study comprised the...

Author(s):Joseph Maina Kariuki, Margaret Bates and Adiel Magana

Climate Change Effect on Crops Performance with a focus on Cereals: a Review

Article in Press

As climate change has demonstrated a variable effect in different part of the world, its effect is severe in the developing world. Climate change, the ambient weather factors are becoming beyond the suitability ranges, is imposing a negative effect on the adaptation and production of the crops. This is because of variability and change in precipitation, solar radiation, temperature, CO2 concentration, thereby, leading to...

Author(s):Tewodros Ayalew and Walelign Worku

Designing a semi-dry cyclonic channel scrubber for the simultaneous removal of suspended particles and SO2

Article in Press

The aim of this research was to evaluate the efficiency of a cyclonic scrubber in a simultaneous removal of suspended particles and SO2 from the warm airflow in factories extracting lead. At first, the sampling from the suspended particles and SO2 gases exhausted from the chimneys was carried out before applying the filtration system. Then, the cyclone scrubber system was designed based on the pressure, velocity and...

Author(s):Mahmood Tabrizi, Faramarz Moattar and Nabiollah Mansuri

An Assessment of Weather and Climate Change impact on Human Health in the Case of Addis Ababa City, Ethiopia

Article in Press

It is well known that weather conditions could aggravate factors for climate-sensitive disease. This paper assesses on the effects of extreme temperature and rainfall events on human health in Addis Ababa City. Health statistics of different seasons were utilized for the assessment of health impact on urban population in Addis Ababa. Surface temperatures pattern were analyzed to investigate the urban warming effect....

Author(s):Ethiopian Civil Service University, College of Urban Development and Study

Assessment of Solid Waste Management Practice in Wolkite Town, Central Ethiopia

Article in Press

Solid Waste is unwanted materials generated from different sources. The objective of the study was exploring major solid waste and management in Wolkite town. The data was collecting using primary data through questionnaires, structure and semi-structured interviews, and field observations. The analysis of this work was carried out using quantitative description. Data on frequency distribution of solid waste in Wolkite...

Author(s):Belachew Garedew

Quantitative analysis of meteorological factors: evapotranspiration, relative humidity, precipitation, temperature, NAO and ONI atmospheric index for 2017, Managua, Nicaragua

Article in Press

The purpose of this paper is to synthesize the analysis of the relationship that occurs between the occurrence of disasters, the level of development and the need for a sustainable development style as a framework strategy for comprehensive risk management. The so-called natural disasters are not in essence natural, but only triggered by natural events such as floods or earthquakes; the disaster itself is a social...

Author(s):Victor Rogelio Tirado Picado

COMPARATIVE EVALUATION OF THE POTENTIALS OF EXOTIC AND INDIGENOUS BREED HEN EGGSHELL POWDER AS AN ADSORBENT FOR THE REMOVAL OF CHROMIUM (VI) ION FROM TEXTILE WASTEWATER

Article in Press

This study focused on the comparative evaluation of the potentials of exotic and indigenous breed hen eggshell powder as an adsorbent for the removal of Chromium (VI) ion from textile wastewater. The effects of adsorbent dosage, contact time, solution pH and solution temperature were investigated in a batch process and evaluated. The results showed that the optimum conditions were adsorbent dose of 6g, contact time of 3 h,...

Author(s):Folami, N.A., Oyebola, M.O., Dare, B.T. and Edafeshebure, O.

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