International Journal of
Water Resources and Environmental Engineering

  • Abbreviation: Int. J. Water Res. Environ. Eng.
  • Language: English
  • ISSN: 2141-6613
  • DOI: 10.5897/IJWREE
  • Start Year: 2009
  • Published Articles: 314

IJWREE Articles

Assessment of health risks associated with wastewater irrigation in Yola Adamawa State, Nigeria

January 2013

  In a view to evaluate their potential use as adsorbent for wastewater treatment, the mineralogical and physico-chemical properties of alluvial clays from far north region of Cameroon has been determined. Chemical, X- ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and transmission electron microscopy (TEM) analysis of the...

Author(s):   Hussaini I. D., Aliyu B., Bassi A. A. Abubakar S. I. and Aminu M.        

Flow and contaminant transport simulations of the Solimões River using three depth-averaged two-equation closure turbulence models

December 2012

This paper reports a numerical simulation in the Amazon water system, aiming to develop a quasi-3D numerical tool for refinedly modeling turbulent flows and passive mass transport phenomena in natural waters. Three depth-averaged two-equation closure turbulence models,  - ,  - , and  - , were used to close the non-simplified quasi three-dimensional hydrodynamic fundamental governing equations. The...

Author(s): Liren Yu,

Groundwater quality and pollution potential studies around Baikunthpur Area, Rewa District, Madhya Pradesh, India

December 2012

Hydrogeochemical investigations were carried out in Baikunthpur Area Rewa District Madhya Pradesh. In the study area, Rewa shale and Rewa sandstone of Vindhyan Supergroup are exposed. The groundwater samples were collected from 30 locations during post monsoon season of 2010 and analysed for major cations and anions. The study reveals that groundwater of the area is generally moderately hard to very hard, normal...

Author(s): R.N. Tiwari and Umesh Mishra

Evaluation of hydrogeological properties of fractured granitic aquifer in a micro watershed of Kandukuru -Southern India

December 2012

Aquifer performance tests were conducted in a fractured granitic bedrock aquifer to determine the well performance and hydraulic characteristics of bore wells in a micro watershed of Kandukuru from Southern India. The long duration pump tests under constant rate conditions (ranges: 216-363 m3/day) were conducted independently at 6 bore wells to examine the variations in transmissivity. Different analytical methods were...

Author(s): Sudheer Kumar, M., Srinivas Chary, R., Srinivasa Reddy, K. and Mondal, N.C.

Coupling agricultural non-point source (AgNPS) model and geographic information system (GIS) tools to predict peak runoff and sediment generation in the upper River Njoro catchment in Kenya

December 2012

Human interference in the upper River Njoro catchment has led to the increased exposure of the land to accelerated erosion. An application that combined the capabilities of remote sensing, geographic information system (GIS) and agricultural non-point source (AgNPS) model was used to estimate peak runoff rate and sediment yield from the upper River Njoro catchment. Remotely sensed Landsat Thematic Mapper (TM) images...

Author(s): Otieno, Hesbon and Onyando Japheth Ogalo

Water quality assessment of Ruguti River in Meru South, Kenya

December 2012

Physicochemical and microbiological analyses were carried out on water and sediment samples from Ruguti River in Meru South, to ascertain the water quality. The mean of the results obtained were compared with WHO (2011) standards for drinking water .The physicochemical parameters such as temperature, electrical conductivity, total dissolved solids, total alkalinity, total hardness, sulphates, chlorides, fluorides were...

Author(s): Ombaka O. and Gichumbi J .M.

Rainwater harvesting assessment for a small size urban area in Jordan

December 2012

Jordan is currently one of the world’s four poorest nations in water resources. Rainfall harvesting from rooftops, roads, and parking lots can increase the water supply for various uses and help combat the chronic water shortage in Jordan. This work aimed at evaluating the potential for potable and non-potable water savings by using rainwater at Yarmouk University and to provide recommendations for increasing...

Author(s): Awawdeh M., Al-Shraideh S., Al-Qudah K. and Jaradat R.

Development of monsoon model for long range forecast rainfall explored for Anand (Gujarat-India)

November 2012

Rainfall plays an important role in agricultural production. It has a profound influence on the growth, development and yields of a crop, incidence of pests and diseases, water needs and fertilizer requirements in terms of differences in nutrient mobilization due to water stresses and timeliness and effectiveness of prophylactic and cultural operations on crops. Occurrences of erratic rainfall are beyond human control....

Author(s): S. S. Chinchorkar, G. R. Patel and F. G. Sayyad

Rainwater harvesting potential in Central Niger Delta

November 2012

The three major sources of water are easily accessible in the Central Niger Delta area. The tributaries of the River Niger form a complex network of rivers, streams and lakes; groundwater is available at relatively shallow depths for abstraction; and rainfall lasts for about 9 months and varies from about 3500 to 2000 mm per annum. On relatively sophisticated water supply systems, groundwater is the most exploited but...

Author(s): A. H. Oti and B. Skinner

Messinian salinity crisis impact on the groundwater quality in Kert aquifer NE Morocco: Hydrochemical and statistical approaches

November 2012

Groundwater’s studies at middle Kert aquifer in northeast of Morocco are very important due to the semi-arid character and its geological history. The region is recognized by messinian salinity crisis already 5.6 Ma. Water chemistry is mainly dominated by dissolution of evaporate rocks (Halite and Gypsum) related to outcropping and basement limits developed in Messinian age. Freshwater with total dissolved solids...

Author(s): Elgettafi Mohammed, Elmandour Abdennabi, Himi Mahjoub, Casas Albert and Elhaouadi Boubker

Sustainable water supply from boreholes in neighborhood communities besieged by off-campus students

November 2012

Problems of water supply in four neighborhood communities housing Federal University of Technology Owerri (FUTO) and Federal Polytechnic Nekede (POLYNEK) off-campus students have been investigated. The four communities are Ihiagwa, Eziobodo, Nekede and Obinze all in Owerri west county of Imo state, Nigeria. The communities and the larger population of off-campus students are in dare need of portable and sustainable...

Author(s): Nwachukwu M. A., Ohuawunwa C., Nwachukwu I. and Nnorom U.

Physiochemical evaluation of the drinking water sources from district Kohat, Khyber Pakhtunkhwa, Pakistan

October 2012

Safe drinking water is a high priority issue for safeguarding health and well-being of humans  all over the world. Both in the urban and rural areas of Pakistan, the quality of drinking water are not being managed properly. Results of various studies provide evidence that most of the drinking-water supplies are physiochemically contaminated. In this study, a detailed investigation of the drinking water sources...

Author(s): Naeem Khan, Syed Tasleem Hussain, Javid Hussain, Nargis Jamila, Shabir Ahmed, Riaz Ullah, Zain Ullah, and Abdus Saboor,

Analysis of quality of water at Kintampo, Ghana

October 2012

The aim and purpose of this research work was to ascertain the seasonal variations in water quality at Kintampo. Thirty out of 200 hand-dug wells were random selected for the study. Three mechanized boreholes and treated water from the township supply system (34 sampling points) were also selected. The sampling was carried out on 15th October 2008, 20th December 2008, and 14th February 2009. Fifteen parameters analysed...

Author(s): Appiah, F. F. and Momade, Z.

Assessment of water resource allocation policies based on the principle of comparative advantage and a policy analysis matrix: A case study of Hamedan-Bahar Plain

September 2012

Comparative advantages of agricultural products were evaluated using the policy analysis matrix (PAM), to determine the combination of products according to market and shadow prices. Based on these evaluations, maximum amount for import virtual water was identified. Results showed that optimum cropping pattern in term of maximizing social benefits not only had the highest amount of benefits - 29160 USD but it also...

Author(s): Mehdi Nemati, Samane Zare, Ebad Allah Nemati and Ali Sadeghi

Assessment of borehole water quality in Yola-Jimeta Metropolis, Nigeria

September 2012

This study investigates the chemical concentration of borehole water in Yola-Jimeta Metropolis so as to assess their suitability for domestic use. Water samples were collected from twenty-two boreholes, one sample from each of the twenty-two administrative wards (Wards are the lowest political units in Nigeria) in the metropolis. Samples were analyzed in the laboratory using standard guideline procedures suggested by...

Author(s): Bashir Abubakar and Olalekan Adekola

Effect of groin geometry on scouring of sandy river beds having 180° Bend

September 2012

Groins are commonly used at the river bends for controlling erosion along the banks and protecting the adjacent infrastructure. Groins are designed to divert river flows towards its axis, thus reducing stream pressures leading to enhanced protection of river banks. The new flow pattern, however, entails the inherent risk of disturbing the established river regime leading to scouring around the groin. This research was...

Author(s): Mahmoud R. Eltoukhy, and Neveen B. Abdelmageed

Development, utilization and statistical evaluation of Hardy Cross pipe network analysis softwares

August 2012

Pipe network analysis is an essential aspect in the design of water distribution networks. The Hardy Cross method is one of the methods commonly employed in pipe network analysis. Two softwares are developed using the Hardy Cross method for analysis of flow in pipe networks based on FORTRAN and Visual BASIC (VB) programming languages. HARDY CROSS1 (FORTRAN-based) and PNET Expert (VB-based) are proposed. They differ only...

Author(s): Salihu Lukman, Abubakar Ismail, Abusufyan Ibrahim and Badruddeen Sani Saulawa

Water-supply augmentation options in water-scarce countries

August 2012

Growing demand for water resources due to increased population and improved living standards, have prompted public agencies and others in the Fertile Crescent (FC), a semi-arid region, to seek better ways to manage water. This paper discusses water supply-augmentation options (e.g., desalination, water importing, wastewater treatment, recycling, water conservation, reducing evapotranspiration and storage) to alleviate...

Author(s): Tala Qtaishat

Assessment of atmospheric moisture using hygroscopic salts in dry-and-wet climate of Nigeria

August 2012

Atmospheric moisture content plays an important role in climate changes studies. Atmospheric moisture content was determined using four different hygroscopic salts, viz Sodium chloride (NaCl), Potassium chloride (KCl), Zinc sulphate (ZnSO4) and Magnesium chloride (MgCl2) salts and hygrometer. Evaluation of different hygroscopic salts for the determination of humidity was based on the ability of the salts to absorb...

Author(s): A. O. Eruola, G. C. Ufoegbune, A. A. Amori and I. O. Ogunyemi

Ecofriendly management of mixed coconut oil cake waste for lipase production by marine Streptomyces indiaensis and utilization as detergent additive

August 2012

The utilization of agro waste for the production of lipase enzyme was one of the ecofriendly methods for the management of waste. From 34 actinomycetes strains screened from sediments of Tiruchendhur coastal areas of Tamil Nadu, India, 26 strains exhibited lipase activity. The marine actinomycete strain MAC 7 was used for the production of extracellular lipase by using mixed coconut oil cake waste as substrate. The...

Author(s): B. Sathya Priya, T. Stalin and K. Selvam

Quality assessment of traditional water resources in Khamis Mushait City, Abha Metropolitan, Assir Province, Saudi Arabia

July 2012

The physical and chemical quality within traditional water resources of Khamis Mushait City, Saudi Arabia, that are being used for various urban purposes were assessed to explore consistency. The network sampling and cross-sectional techniques were implemented. Google earth digital satellite map of the study area was used as a master map for sampling. A total of 66 water samples were collected randomly from surface and...

Author(s): Eed Lafi Shaher Al-Otaibi and Mahmoud S. Ahmed Zaki

Impact of land use activities on Subin and Aboabo Rivers in Kumasi Metropolis

July 2012

Water resources have come under a lot of threat in recent years from human activities especially in the urban environment as their protection seem to be neglected not only by the populace but also the responsible institutions as well. Within this context, study seeks to address the issues of compatibility of land uses with water bodies. Sample size of 90 activity units selected at 90% confidence level and a margin of...

Author(s): Abubakari Ahmed and Romanus D. Dinye

Groundwater: Characteristics, qualities, pollutions and treatments: An overview

June 2012

  This review considered groundwater resources, its characteristics, qualities, pollutions and available treatments. Groundwater refers to all the water occupying the voids, pores and fissures within geological formations, which originated from atmospheric precipitation either directly by rainfall infiltration or indirectly from rivers, lakes or canals. The chemical, physical and bacterial characteristics of...

Author(s):   Olumuyiwa I. Ojo, Fred A.O. Otieno and George M. Ochieng      

Modeling the generation of domestic waste for supporting the planning of municipal waste services

June 2012

  The Polokwane declaration on waste management is to stabilize waste generation and reduce the waste disposal by 50% by 2012 and develop a zero plan for zero waste by 2022 waste generation is an ongoing process which will continue, as long as humans exist. The types and quantity of waste generated in South Africa have however, changed over time often leading to constraints in municipal waste management budgets...

Author(s):   Anthony Phiri, Linda Godfrey and Dr Snyman      

Kinetic studies on the removal of some metal ions from aqueous solution using modified orange mesocarp extract

June 2012

  This study examines the kinetics of the removal of zinc, copper, nickel and cobalt ions from aqueous solutions by Carboxylated-Toluene Di-isocyanate Orange Mesocarp Extract Resin (CTOR) and Sulphonated-Toluene Di-isocyanate Orange Mesocarp Extract Resin (STOR). Results from contact time experiments indicate that the rate of ion exchange was initially rapid and equilibrium was attained within 40 to 45 min. It...

Author(s):   Millicent U. Ibezim-Ezeani, Francis A. Okoye and Onyewuchi Akaranta      

Reservoir storage variations from hydrological mass balance and satellite radar altimetry

June 2012

  Knowledge of storage variations in reservoirs and lakes is important for water resources planning and use. In developing countries where lakes may be poorly gauged and water quantity data sparse or unavailable, a simple and cost-effective method of estimating storage would be useful for reservoir operation and management. In this study, we showed how to estimate reservoir storage by combining hydrological...

Author(s):   Yunus D. Salami and Fidelia N. Nnadi      

Nonlinearity in storage- discharge relationship and its influence on flood hydrograph prediction in mountainous catchments

June 2012

  The influence of nonlinearity in storage-discharge relationship on flood hydrograph prediction in three catchments in Zagros mountain region in south west of Iran is examined. An event based runoff routing model, watershed bounded network model (WBNM) is applied to assess the response of the selected catchments. Using all available hyetographs and corresponding flood hydrographs, the nonlinear parameter value...

Author(s):   Hassan Rezaei-Sadr, Ali Mohammad Akhoond-Ali, Feridon Radmanesh and  Gholam Ali Parham        

Modeling daily stream flow using plant evapotranspiration method

June 2012

  In hydrological models, soil conservation services (SCS) are one of the most widely used procedures to calculate the curve number (CN) in rainfall run-off simulation. Recently, another new CN accounting procedure has been mentioned, namely the plant evapotranspiration (ET) method or simply known as the plant ET method. This method is embedded in the Soil and Water Assessment Tool (SWAT) model which has been...

Author(s):   Milad Jajarmizadeh, Sobri Harun, Bijan Ghahraman and M. H. Mokhtari    

An assessment of hydrogeologic characteristics of Bamikemo's hard rock terrain using geophysical techniques

May 2012

  Resistivity depth soundings integrated with the very low-frequency electromagnetic (VLF-EM) profiling and some hydrogeologic measurements were conducted at Bamikemo, Nigeria. The exercise attempted to evaluate the groundwater potential of the main water supply area. The integrated approach enabled the delineation of the regolith/weathered layer containing the overburden aquifers from the hard rock housing the...

Author(s):   Omosuyi, G. O. and Oyemola, I. O.      

Evaluation of the quality of sachet water vended in the New Juaben municipality of Ghana

May 2012

  Access to good quality water has been a challenge to humans due to the pollution of the limited water resources around. Over one billion people do not have access to a safe source of drinking water. This phenomenon is leading to the loss of children below the age five (5) on an hourly basis. With the rate at which sachet water producing companies are coming up, there is the need to assess the quality of the...

Author(s):   Ahimah J. K. and Ofosu S. A.      

EROD and PAH detection as biomonitoring tool in Golden Horn-Istanbul Turkey

May 2012

  This investigation covers studies on the concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) in Golden Horn and their effects on Ethoxyresorufin O-deethylase EROD activities of human hepatocellular carcinoma cell line, HepG2. Water samples were collected from eight different stations around Golden Horn. Concentrations of total water PAHs ranged from 3.8 ng/L to about 259.7 ng/L. CYP1As enzymes...

Author(s): Sebahat ŞEKER      

Flood frequency analysis of homogeneous regions of Jhelum River Basin

May 2012

  Jhelum River is one of the major tributary of the Indus Basin River system. It drains the Northeast part of the Pakistan which includes the territory of occupied Kashmir, Azad Jammu and Kashmir, Northwest Frontier Province (NWFP) and Punjab. The major problem in the Jhelum River Basin is the scarcity of flow data. Therefore, under the circumstances of the lack of sufficient hydrological data, a...

Author(s):   Zakaullah U, M. Mazhar Saeed, Iftikhar Ahmad and Ghulam Nabi        

Municipal solid waste management systems in the Kingdom of Bahrain

May 2012

  Waste management has been acknowledged as one of Bahrain’s biggest challenges due to its impending effects regarded as detrimental to the country. Data gathered within the past thirty years have all revealed significant increases on waste quantity generated in the country along the categories of residential, commercial, institutional, construction and demolition, municipal services, public areas,...

Author(s):   Mohammed Saleh Al. Ansari        

Phosphate pollution control in waste waters using new bio-sorbents

April 2012

  Thermally activated barks/stems and their ashes of Ficus religiosa, Cassia auriculata, Punica granatum and Calotropis gigantean are found to have remarkable affinity towards phosphate ions. The sorption characteristics of these bio-products towards phosphate from synthetically prepared waste waters have been studied with respect to various physicochemical parameters such as...

Author(s):   M. Divya Jyothi, K. Rohini Kiran and K. Ravindhranath      

Regional model for peak discharge estimation in ungauged drainage basin using GIUH, Snyder, SCS and triangular models

April 2012

  Due to the importance of instantaneous peak discharge estimation for watershed management study in countries like Iran, the search is ongoing to correlate geomorphologic and hydrologic parameters to present models. This paper describes the use of synthetic unit hydrograph at drainage basin of Mehran (Joestan River). The obtained results were compared with recorded peak discharge in outlet of watershed. The...

Author(s):   Majid Dabbaghian Amiry and Mohammadi A. A.        

Limnochemical characteristics of river Yamuna in Yamunanagar, Haryana, India

April 2012

  The present paper deals with the monthly variations of limnochemical characteristics of river Yamuna, Yamunanagar which is polluted with industrial effluents and domestic sewage via, maskara nala. Three sampling points that is, Station-Y1: Upstream of the river; Station-Y2: Point of influx of industrial effluents and domestic sewage; Station-Y3: About 5 km downstream from station Y2 were selected for the...

Author(s):   Girish Chopra, Anita Bhatnagar and Priyanka Malhotra        

Seasonal and interannual validation of satellite-measured reservoir levels at the Kainji dam

April 2012

  Although several studies have demonstrated the potential for inland water monitoring using satellite radar altimeters, the technology still carries with it certain limitations. Therefore, the direct application of altimetry data to reservoir management is often preceded by validation of satellite altimetry data with reliable ground-measured data. Kainji reservoir in Nigeria was selected for this study due to...

Author(s):   Yunus D. Salami and Fidelia N. Nnadi        

Removal of phosphorus from Nigeria’s Agbaja iron ore through the degradation ability of Micrococcus species

April 2012

  Study on the potential of Micrococcus species to remove phosphorus (P) from Nigeria’s Agbaja iron ore was carried out by submerged culture technique. Findings reveal that Micrococcus species which was originally isolated from the ore samples solubilized phosphorus with 69.66% phosphorus removal rate. The microbe also completely accumulated iron (Fe) and cadmium (Cd) ions found in the...

Author(s):   O. W. Obot and C. N. Anyakwo    

A framework for defining equity and sustainability in the Nile River Basin

March 2012

  The objectives of this research were to objectively define the two important terms, ‘equity’ and ‘without appreciable harm’, in the water utilization principles enshrined in the United Nation (UN) Convention in the context of visions of the Nile Basin Initiative (NBI). Need-based allocation of Nile waters and the new emerging concept of ‘reserved’ and ‘shared’...

Author(s):   Asfaw Kebede, Desalegn Chemeda and Semu Ayalew        

Water pollution: Major issue in urban areas

March 2012

  Like most of developing countries urbanization and industrialization have not gone in pace with environmental pollution, resulting in numerous problems arising from environmental pollution. This is specifically true about water bodies wherein various toxic solid wastes, effluents and emission are being discharged, resulting in an excessive amount of toxic and hazardous metals in local ground water. Due to...

Author(s):   Sajid Farid, Musa Kaleem Baloch and Syed Amjad Ahmad      

Physiochemical and bacteriological analysis of surface water in Ewekoro Local Government Area of Ogun State, Nigeria: Case study of Lala, Yobo and Agodo Rivers

March 2012

  This study examined the physiochemical and bacteriological analysis of surface water in Ewekoro Local Government Area of Ogun State, Nigeria - a case study of Lala, Yobo and Agodo Rivers. Water samples were collected from the rivers in October and December 2008. The samples were analyzed for pH, TDS, TH, electrical conductivity, chloride, calcium, nitrate and fecal coli form. Result indicated that total...

Author(s):   Adejuwon J. O. and Adelakun M. A        

Impacts of urban growth on flood hazards in Makkah City, Saudi Arabia

February 2012

  Flash floods are the most dangerous type of natural disasters in arid regions, such as Saudi Arabia. The effects of urban growth, witnessed between 1990 and 2010, in Makkah city, Saudi Arabia, on runoff volume and peak discharge are investigated using the curve number (CN) flood-modelling methodology. Shapefiles of residential areas are compiled and integrated in a unique geographic information system (GIS)...

Author(s):   Khaled A. Al-Ghamdi, Ramze A. Elzahrany, Meraj N. Mirza, and Gomaa M. Dawod,          

Well water contamination by pit latrines: A case study of Langas

February 2012

  In many peri-urban areas of Kenya, potable piped water does not exist and where it does, it is rarely reliable. Thus, in such areas, residents heavily rely on groundwater sources for their daily survival. Therefore, it is common to find individual wells in each plot within such a peri-urban dwelling. Furthermore, in most cases, such dwellings lack municipal sewers, hence forcing residents to construct pit...

Author(s):   Clement Kiprotich Kiptum and Julius Musyoka Ndambuki  

Species richness and diversity of chlorophyceae and bacillariophyceae in Cauvery River, Mysore, India

December 2011

Selected physico-chemical parameters and a taxonomic survey of fresh water algae in lotic water bodies of river cauvery in and around Mysore district were carried out between 2008 and 2009. The quantitative and qualitative analyses of chlorophyceae and bacillariophyceae have revealed the presence of 21 taxes respectively. The maximum chlorophyceae and bacillariophyceae species were found at stations D1 and R1 and...

Author(s): J. Mahadev, UsmanTaqui Syed and S. Suresha

Phytoplankton dynamics and seasonal variation in Tungabhadra River, India

December 2011

Tungabhadra River, an important tributary of Krishna, flows in the district Davangere in the central part of Karnataka State, India. A total of 64 species of phytoplankton were recorded during the present study period. These include 23 species of Chlorophyceae, 18 species of Cyanophyceae, 14 species of Bacillariophyceae and 9 species of Euglenophyceae. Water and algal samples were collected at regular intervals of 15...

Author(s): Suresh B., Manjappa S. and E. T. Puttaiah

A study of solar disinfection for rural water supply

December 2011

Drinking water available to rural communities in many developing countries contains disease germs. Solar disinfection of water is becoming increasingly appreciated because of the feasibility of its application. This study investigated the level of transmission of ultraviolet light by bottles made of glass, poly vinyl chloride (PVC) and polyethlene terephthalate (PET) in relation to their ability to disinfect water...

Author(s): Olatunde Ayoola Ajayi, Kamar Taiwo Oladepo, Julius Olatunji Jeje and Martins Olusola Ogedengbe

Optimal management for groundwater of Nubian aquifer in El Dakhla depression, Western Desert, Egypt

December 2011

El Dakhla depression occupies a structurally localized depression at 100 to140 m (amsl), below a 400 m escarpment bordering the Libyan Plateau, Western Desert of Egypt. In this area, groundwater of the Nubian Sandstone aquifer is the unique source of fresh water.  The increasing demand of groundwater in El Dakhla depression has resulted in an indiscriminate exploitation of this source causing environmental hazards...

Author(s): Gad M. I., A. E. El Sheikh and El Osta M. M.

Thermosyphon solar water distiller of cement and aluminum absorber with auxiliary condenser

December 2011

Two modifications of solar water distillers using cement and aluminum absorbers are presented experimentally. The first modification uses separated condenser to purge vapor from the cement absorber distiller to increase the condensation, while second modification uses a plate thermosyphon charged with acetone installed on the bottom of the water basin in the aluminum absorber distiller to increase input energy to the...

Author(s): Mousa M. Mohamed and Mostafa A. Abd El-Baky

Artificial neural network model to assess the impacts of land development on river flow

December 2011

Some types of land development can be associated with increased impervious area that causes increase in surface runoff and decrease in ground water recharge. Both of these processes can have large-scale ramifications through time. Increased runoff results in higher flows during rainfall events. On the other hand, groundwater recharge decreases due to increase impervious surfaces and decrease rate. Hence, there is a need...

Author(s): M. Y. Mohamed

Very low frequency - electromagnetic (VLF-EM) and Offset Wenner resistivity survey of spring sources for groundwater development

December 2011

Geophysical mapping involving VLF Electromagnetic profiling along seven profiles, ten Offset Wenner and two azimuthal soundings were employed in the study of perennial spring sites at Iloyin community in Akure metropolis, southwest Nigeria. Geophysical methods are useful in mapping areas of natural water resource for groundwater abstraction or construction of containment such as dam or fishpond. Linear inversion of the...

Author(s): G. M. Olayanju

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