Volume-10 ~ Issue-3 ~ March-2017

Abstract: Assessment of the quality of underground water is an important issue for the safety of mankind who uses this as drinking water and other purposes. For this reason, the present research activities have been focused on various essential physico-chemical parameters such as pH, electrical conductivity, total solids, total suspended solids, total dissolved solids, total hardness, turbidity, sulphate, nitrite, nitrate, phosphate, chloride, total alkalinity, arsenic, iron, manganese, chromium, nickel, cadmium, lead, magnesium, potassium, calcium, cobalt, mercury, copper and zinc of water samples from study area............
Keywords: Trace metals, physico-chemical, underground water, industrial area, comparison, non-industrial area, Bangladesh.

[1] Achakzai AKK, Bazai ZK, Afzal M and Hanif U (2014). Physicochemical status of drinking water of Quetta districts. American-Eurasian Journal of Toxicological Sciences, 6: 62–67
[2] Ahmed MJ, Haque MR and Rahman MM (2011). Physicochemical Assessment of surface and Groundwater Resources of Greater Noakhali District of Bangladesh. Internation Journal of Chemical science and Technology, 1: 1-10.
[3] Craun GF, Calderon RL (1999). "Water-borne disease outbreaks: their causes, problems, and challenges to treatment barrier, AWWA manual M-48: water-borne pathogens", American Water Works Association, Denver, USA.
[4] Haileslassie T and Gebremedhin K (2015). Hazards of heavy metal contamination in ground water. International Journal of Technology Enhancements and Emerging Engineering Research, 3: 1 – 6.
[5] Kumar PJS and James EJ (2013). Physicochemical parameters and their sources in groundwater in the Thirupathur region, Tamil Nadu, South India. Appl Water Sci., 3: 219 – 228.

Abstract: In the present study, the antioxidant and DNA binding properties of Ni(II), Co(II), Cu(II) and Zn(II) metal complexes containing bidentate Schiff base for their possible free radicals scavenging properties associated with various diseases were considered. The different models such as 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferrous ion chelation(FIC),ferric reducing antioxidant power(FRAP),total antioxidant activities(phosphomolybdenum methods) and hydroxyl radical(•OH) radical scavenging activities at different concentrations for antioxidant and DNA absorption spectroscopic analysis were assayed for DNA binding studies...........
Keywords: Free radicals, Schiff base complexes, Antioxidants, DNA binding.

[1] Halliwell B. Free radicals in biology and medicine. Third edition Oxford UK; Oxford University Press.1999.

[2] Valko M. Free radicals and antioxidants in normalphysiological functions and human disease. International Journal Biochemical CellBiology.2007;39(3):4484-4496.
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[4] Mondal SK. Gupata M. Chakraborty G. Mazumder UK.In-vitro antioxidant activity of DiospyrosmalabaricaKostel bark. Industrial Journal of Experimental Biology.2006;44(8):39-44.

[5] Mohammad I.Chaudhuri PS.Oxidant antioxidant system, Role and significance in human body. Industrial Journal of Experimental Biology. 2002;40(1):1233-1239..

Abstract: Aim: isolation, purification and NMR characterization of secondary metabolites in Mimosa pudica. Study design: extraction, isolation and identification of the secondary metabolties from the petroleum ether and metabolites extracts from Mimosa pudica. Methodology: In the course of our study on Mimosa pudica, a compound was isolated and purified using different chromatographic techniques and the structure of the compound determined on the basis of their spectroscopic data (IR, HNMR, COSY, DEPT, MS)............
Keywords: Mimosa pudica, Mimosine, secondary metabolites, chromatography, characterization

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Abstract: 2-Phenyl-3,4-dihydro-quinazolin-4-yloxy)-acetic acid (L1) metal complexes with Mn2+, Co2+, Ni2+ Cu2+, and Zn2+ ions were studied and the structure of the complexes were elucidated using elemental analyses, infrared (IR), 1H nuclear magnetic resonance (NMR), magnetic moment and thermal analysis measurements. Besides the characterization of complexes by physicochemical technique, Biological activities of the synthesized complexes were examined against some microbial strains for evaluation of antibacterial and antifungal activities.

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Abstract:The purpose of this paper is to model and analyze an existing natural gas transmission pipeline – the 24-inch, 5km gas export pipeline of the Amenam-Kpono field, Niger Delta, Nigeria – to determine properties such as pressure, temperature, density, flow velocity and, in particular, dew point, occurring at different segments of the pipeline, and to compare these with normal pipeline conditions in order to identify the segments most susceptible to condensation/hydrate formation so that cost-effective and efficient preventive/remedial actions can be taken. The analysis shows that high pressure and low temperature favor condensation/hydrate formation, and that because these conditions are more likely in the lower half of the pipeline system, remedial/preventive measures such as heating/insulation and inhibition injection should be channeled into that segment for cost optimization.

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Abstract: The performance of a continuous electrocoagulation (EC) process was investigated for tannery wastewater treatment using aluminum and iron electrodes. The effects of the operating parameters, such as current density, pH of solution and inlet flow rate, on pollutants removal efficiency and recovery of hydrogen gas were investigated in order to optimize process performance. In the case of aluminum electrodes, The results showed that for tannery wastewater with an influent pH adjusted at about 6, the use of a current density of 14 mA/cm2, and an EC time of 125 min, gave access to pollutants (COD, Color, Cr, and NH3-N) removal efficiency 73, 94, 100 and 51%, respectively...........

Keywords: Tannery wastewater; Hydrogen gas recovery; continuous mode; Al/Fe electrode; Energy.

[1]. L. Szpyrkowicz, G.H. Kelsall, S. N. Kaul, M. D. Faveri, Performance of electrochemical reactor for treatment of tannery wastewaters, Chem. Eng. Sci.,56 (2001) 1579 -1586.
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[3]. A. Cassano, R. Molinari, M. Romano, E. Drioli, Treatment of aqueous effluents of the leather industry by membrane processes: A review, J. Membr. Sci., 181 (2001), 111–126.
[4]. G. Chen, Electrochemical technologies in wastewater treatment. Sep. Purif. Technol., 38 (2004), 11–41.
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Abstract: The effectiveness of corn silk water extract (CSWE) as corrosion inhibitor of mild steel in 0.5M HCl solution at 303K,313K and 323K was investigated in this work. Various concentrations of CSWE (5%v/v, 10%v/v, and 15% and 20% v/v) were prepared from dried corn silk. The study was carried out using weight loss and AAS analysis. The results of the AAS analysis collaborated weight loss measurements on the efficiency of CSWE as corrosion inhibitor. Inhibition efficiency of 77.7% and 72.0% was obtained respectively using both methods. Inhibition efficiency increased with increase in concentration of CSWE (5%v/v<10%v/v <15% < 20% v/v) while corrosion rate decreased as concentration increased. Increase............

Keywords:inhibition, efficiency, corn silk, water extract, AAS, first order.

[1]. Alaemary, G A; Refaat, A S. Crystallization of calcium oxalate monohydrate crystals (COM) in the presence of corn silk and trigonellafoenumGraecum. World Journal of Pharmaceutical Research, 5 (3) 1764-1777.
[2]. Alaneme, K K; Daramola, Y S; Olusegun, S J; Afolabi, A S (2015). Corrosion inhibition and adsorption characteristics of Rice Husk extract on mild steel immersed in 1M H2SO4 and HCl solutions. International Journal of Electrochemical Science, 10 (2015) 3553-3567.
[3]. Ating, F B; Umoren, E I; Udosoro(2010). Leaves extract of Ananassativum as green inhibitor for Aluminium in hydrochloric acid solutions. Green Chemistry Letters and Reviews, 3 (2), 61-68.
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[5]. Ebrahimzadel , M A; Hosseinimehr , S J ; Hamidinia, A; Jafari , M (2008). Antioxidant and free radical scavenging activity of feijoasellowiana fruit peels and leaves. Pharmacologyonline 1: 7-14..

Abstract: Six types of wheat bran (Emam, Pohean, Wadielneel, Argeen, Pladi and Debeira) investigated for their biological and antioxidant activities. Physiochemical properties carried for their oil. The polar and nonpolar extracts showed antioxidant activity. These results showed the importance of the wheat bran types as nutritive and medicinal plant. All plant bran types investigated for its biological activity as antifungal and anti-bacterial. Some types of the plant bran extracts showed antibacterial activity towards Escherichia coli, Pseudomonasaeruginosa, Bacillus subtilis, and Staphylococcus aureus............

Key Words: Wheat Bran (Emam, Pohean, Wadielneel, Pladi, Argeen, And Dibera), Antimicrobial activity (Antibacterial and Antifungal), Antioxidant activity

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Abstract: The efficiency of the husk, stalk, cob and seed chaff from maize biomass in the removal of Zn2+ ions from solution under different conditions was studied and compared. Fourier Transform Infrared spectra of the different biomass parts before and after adsorption of metal ions showed that the husk and cob had more available functional groups and as such active sites for the adsorption of Zn2+ ions than the seed chaff and stalk. Percentage removal of Zn2+ions from solution increased with increase in the studied pH range for all the parts. This value also increased with increase in biomass load for the husk and cob but showed an alternating increase and decrease in Zn2+ ions removal as biomass load increased when the seed chaff and stalk were studied...............

Keywords: Functional group, Active sites, Adsorption, Biomass, Maize husk, Removal efficiency, Water treatment

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