Indexing

Abstract: Drinking water must be free from components which may adversely affect the human health. Such components include minerals, organic substances and disease causing microorganisms. A large portion of the population in urban areas in developing countries suffers from health problems associated with either lack of drinking water or due to the presence of microbiological contamination in water. This research was conducted in Kakamega municipality with a broad objective to conduct assessment of water quality and management in Kakamega municipality. The Specific objective was to determine the chemical water quality parameters in water and to evaluate the management practices on water in Kakamega municipality. Four water quality parameters; two physical and two chemical were tested from the samples collected for this research work. Sampling technique was purposive where water samples from water sources and distribution points in densely populated areas of Kakamega municipality were taken. Data collection instruments that were used included sterilized bottles to collect water, delivery to the laboratory within six (6) hours of collection for reliable results and data quality control was achieved through immediate entry in the pre-designed data form. According to the results pH values at all the sources and house connections are well within the WHO desirable limit of 6.50-8.0.  The sample from Sichirai had a pH of 7.8 that was the highest as compared to an Isiukhu river that had 6.6 pH. The samples from Isiukhu river, Savona Island River, fishpond at bridge and Shikhambi spring showed more than 5 NTU. The researchers recommended for water surveillance in Kakamega municipality in order to ensure consumers have safe water free from agricultural and industrial chemical pollution.

Keywords: quality, parameters, contamination, human health, water.
Title: An Assessment on Drinking Water Quality and Management in Kakamega Municipality
Author: Wycliffe Manyulu Clement, Stanley Omuterema
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications

Abstract:Struvite crystallization is a promising method to remove and recover phosphorus from wastewater to ease both the scarcity of phosphorus rock resources and water eutrophication worldwide. Wastewater treatment plants, especially those employing secondary treatment and anaerobic sludge digestion, have historically encountered phosphate precipitates, most commonly being Struvite. The growth of uncontrolled Struvite increases pumping and maintenance cost, as well as reduces the overall capacity of the plant piping system. Since domestic wastewater is recognized as nutrient rich water, the recovery of nutrients using a crystallization technique may provide value added product called Struvite, which is a slow releasing fertilizer. Struvite precipitation occurs in an equimolecular concentration of Mg2+, NH4+ and PO43- at slightly alkaline conditions. Addition of a source of Mg is essential to maintain the favorable condition of PO4 and Mg.

Keywords:Wastewater; Phosphorus; Struvite; Magnesium; Ammonical nitrogen Eco-friendly fertilizer.
Title:A Review on Removal and Recovery of Phosphorus and Nitrogen from Domestic Wastewater by Struvite Crystallization
Author:Modini V, Udayashankara T. H
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications

Abstract: A direct Free Kick in soccer exemplifies the physics of projectile motion. This study investigated the effect of projection angle and initial velocity in achieving soccer free kick goal success rates. At a fundamental level, the initial angle, θ, and the initial velocity, V0, with which the ball is kicked, determines the trajectory of the soccer ball and the time it takes to reach the goal. Using equations of projectile motion, as well as optimizing a modeled equation for reaching the optimal location within optimal time, various initial values of optimized θ and V0  have been obtained for specific Free Kick distances with the appropriate constraints.
Keywords: free-kick, football, goal, minimization, optimization, projectile, soccer.

Title: Determining the Optimized Initial Angle and Velocity for Free Kicks in Soccer
Author: Pavan Chitta
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications

Abstract: Dr. David Joseph Bohm an American scientist who theorized quantum mechanics in the most ordinary and understandable way, which is somewhat referred to as the “Pilot Wave-model”. Also he prophesized in neuropsychology, and gave the Holonomic model of brain affecting our view of the quantum mechanics. His theories suggest that the phenomenon of “NON LOCALITY” or quantum entanglement is due to the famous “frame dragging” phenomenon predicted by Sir. Albert Einstein’s theory of relativity.
Bohm’s theory also suggests that time doesn’t exist in the way we think it does as stated by “THE BIG CRUNCH” theory. According to it time exists due to the interacting frequencies of the waves due to particle vibrations in space and that the universe never began.
In this paper existence of quantum entanglement is used to question the degree of correctness of the Space-time fabric theory.

Keywords: Alternate Theory- Bohmian Mechanics- Gravity Probe B- Pilot Wave- Quantum Entanglement- Space Time. 
Title: Wave Assembly Line Theory of Quantum Entanglement
Author: Ravi Pohani
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications

Abstract: Electrical conductivity of SnO2 based oxide is of great importance for their applications as transparent conducting oxides (TCO) and gas sensors. Better understanding and control of its conductivity would enhance its performance in existing applications and enable new ones. Sn1-xCoxO2 nanoparticles were prepared by the gel combustion method. The structural, surface morphological studies and compositional analyses of prepared nanoparticles were carried out using X-ray diffraction (XRD), Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX). X-ray patterns show all the samples have been found to have tetragonal rutile structure of the polycrystalline SnO2 having crystallite size in the range 8.5-12nm. SEM image shows agglomeration of nanoparticles in all the samples. The XRD, SEM, and EDAX results corroborated the successful doping of cobalt (Co) in the SnO2 matrix. The influences of Co dopant on structural and DC electrical conductivity of SnO2 were studied.  The conductivity of prepared samples increases with the temperature significantly from 298K to 608K due to semiconducting behavior and also it is increases with the Co concentration due to the grain size effect while activation energy increases with decrease of grain size.

Keywords: Tin oxide nanoparticles; Cobalt doping; Combustion synthesis; Structural properties; DC conductivity; Activation energy.
Title: Effect of Co Dopant on Structure and DC Conductivity of Sn_1-XCo_xO₂ Nanoparticles
Author: Rajeeva M.P, Naveen C.S, Ashok R Lamani, H.S Jayanna
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications

Abstract: This work assesses the concentration of heavy metals in Enugu Municipal well-water considering the fact that some Enugu inhabitants depend on well-water as their major source of water supply. Water from twenty four (24) different hand dug wells from six locations were investigated for Zn, Cu, Pb, Mn, Cd, and Fe using Atomic Absorption Spectroscopy (AAS). The result of the study expressed as the means and standard deviations were compared to WHO and EU standards for drinking water, and it was found that well waters from Iva-Valley and Uwani areas suffer from Cd and Mn pollution. The remaining four locations (Emene, Asata, Abakpa Nike and Achara Layout) were all free from Cd and Mn pollution. Cu, Zn, Fe and Pb concentrations were either completely absent or below world threshold limits at all the locations.

Keywords: Heavy metals, well-water, contamination, atomic absorption.
Title: Trace Metals Concentration in Shallow Well Water in Enugu Metropolis
Author:  Ogbuanu,C.C
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications

Abstract: Melilotus officinalis Extract (M.O.E.) was investigated as a green corrosion inhibitor for Aluminium alloy in 1 M HCl solution using weight loss, hydrogen evolution, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Surface morphology was tested using scanning electron microscope (SEM). The effect of temperature on corrosion behavior with addition of different concentrations was studied in the temperature range of 25-45 ºC by weight loss. Polarization curves reveal that the investigated extract is a mixed inhibitor. The inhibition efficiency was found to increase with increase the investigated extract concentration and increase with increasing solution temperature. The adsorption of the inhibitor on Aluminium alloy surface was found to obey the Tenkin’s adsorption isotherm. The activation and adsorption parameters were calculated and discussed. The results obtained from chemical and electrochemical techniques are in good agreement.

Keywords: Acidic inhibition, Aluminium alloy, Mellitus officinalis Extract, Green inhibitor, SEM.
Title: Chemical and Electrochemical Study on the Effectively of Melilotus Officinalis Extract as A Green Inhibitor for Corrosion of Aluminium Alloy in 1 M HCL
Author: A.S. Fouda, R.M. Abou-shahba, W.A Husien, E.S.EL-Habab
ISSN 2350-1030
International Journal of Recent Research in Physics and Chemical Sciences (IJRRPCS)
Paper Publications