Laith Hemed Kamel Al Hachami* and Praveen Raj Saxena
The aim of the present study is to evaluate the quality of Osmansagar lake waters and ground waters with respect to different physico-chemical parameters (pH, EC, TDS, TH, CO3, HCO3, Ca, Mg, K, Cl, Na, SO4, F, NO3) in December 2014. Both the waters have been compared to World Health Organization, WHO (2006) standards in order to evaluate its suitability for drinking purpose. The important constituents that evaluate the waters for its suitability for agriculture and irrigation such as Sodium Adsorption Ratio (SAR), USSL, RSC, Na% and PI were also calculated.
D. Samanthakamani* and N. Thangaraju
Freshwater green microalgae Chlamydomonas reinhardtii, Chlorella vulgaris Beyerinck Scenedesmus quadricauda and bluegreen microalgae
Anabaena ambigua,Nostoc muscorum, Oscillatoria animalis, Oscillatoria sancta, Spirulina maxima and Spirulina platensis were obtained from Culture Collection of Algae, Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai-600025.These microalgae screened for petroleum effluent utilization as carbon source on agar salt medium. The microalgae
Chlamydomonas reinhardtii, Chlorella vulgaris Beyerinck, Scenedesmus quadricauda and bluegreen microalgae
Anabaena ambigua, Nostoc muscorum, Oscillatoria animalis Oscillatoria sancta, Spirulina maxima and Spirulina platensis showed better growth and
Chlamydomonas reinhardtii, Chlorella vulgaris Beyerinck, Scenedesmus quadricauda and bluegreen microalgae Anabaena ambigua, Nostoc muscorum, Oscillatoria animalis
and Oscillatoria sancta they were selected for further petroleum biodegradation studies. These microalgae degraded petroleum effluent levels in culture medium studies.
Idrees Ali Abdul Khudhur* and Praveen Raj Saxena
The study comprised suitability and evaluation of water quality for irrigation uses. About seven samples were collected in and around Pochampally from different lake bodies. Water samples were collected and analyzed for PH, EC, TDS, TH, Na+, K+, Ca2+, Mg2+, HCO3-, CO32-, SO42-, Cl-, F- and NO3-. In addition to classify water quality and evaluating its suitability for irrigation purpose (i) Sodium Absorption Ratio (SAR), (ii) Soluble Sodium Percentage (SSP), (iii) Residual Sodium Carbonate (RSC), (iv) Permeability Index (PI) were calculated.
Manash Deep Dey and Rupak Mukhopadhyay*
Biosorption is a biocompatible and environment friendly approach for removal of synthetic dyes from industrial effluent. In the present study, dried biomass of Aspergillus versicolor was used as an adsorbent for the removal of basic dye Methylene Blue (MB) from its aqueous solution. The optimum pH and temperature for adsorption was found to be 7.0 and 28° C respectively. Scanning electron microscopy (SEM) of the biomass suggested changes in surface topology following MB adsorption, while FTIR studies indicated chemical interaction between the surfaces of the biomass with MB. Kinetics study suggested the adsorption rate was fast initially and reached equilibrium at 4 h following a pseudo-second-order-kinetics. The adsorption isotherm follows Freundlich isotherm model. Our data suggests the dried biomass of A. versicolor can be used as a potent bio-compatible adsorbent for the removal of MB.
Mosa Jafer Sahib* and Praveen Raj Saxena
Some important water quality parameters of surface waters in and around Bibnagar, Nalgonda district, Telangana state were evaluated for the criteria of irrigation purpose. Eight samples were collected from different lakes in the study area. Parameters like Electrical Conductivity (EC), Total Dissolved Solids (TDS), Sodium Absorption Ratio (SAR), Soluble Sodium Percentage (SSP), Residual Sodium Carbonate (RSC) Permeability Index(PI) and Total Hardness( TH) . Major ions and physical parameters were compared with the Indian standard (as per IS 2296) for surface waters.
The paper presents a new approach for the three-axis attitude stabilization of a satellite in low orbit using magnetorquers. A comparative study is established between classical optimal control and a non-integer order control showing performance and robustness of the proposed method. The purpose of this paper is to develop a control law which is efficient, robust, easy to implement on the SCA, satisfying given specifications and maintaining stability and performance requirements, even in the presence of uncertainty about the intrinsic parameters of the satellite and strong external disturbances.
Ghassan Hadi Kttafah* and Praveen Raj Saxena
Physico-chemical characteristic study has been carried out on Himayath Sagar Lake water of Hyderabad City, Telangana State in order to evaluate its suitability for drinking purpose. Lake water from 13 different locations were collected and analyzed for parameters like pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Total Alkalinity (TA), Total Hardness (TH), Calcium (Ca2+), Magnesium (Mg2+), Sulphate (SO42-), Nitrate (NO32-), Fluoride (F-) and chloride (Cl−) levels. The analytical results indicated that lake waters are slightly alkaline in nature and found that the physico-chemical parameters of lake waters are within the acceptable limits for drinking purposes (IS 10500: 2012) except TDS.
Haripriyani. A* and D. Santha rao
Quality and productivity plays important role in today’s manufacturing market. Now a day’s due to very stiff and cut throat competitive market condition in manufacturing industries and the main objective of industries reveal with producing better quality product at minimum cost and increase productivity. In this study AA 6082 aluminum alloy was chosen to and this material can find various applications. It is commonly used for highly stressed applications, trusses, bridges, cranes, ore skips, transport applications resistance and machinability. End milling is one of the most commonly used metal removal operation in industry because of its ability to remove material faster with good surface finish and Surface roughness depends on the factors like spindle speed, depth of cut, feed rate, material and geometry of tool. The study also focuses to Optimize process parameters using Taguchi design of experiments. The three process parameters and three levels are selected and orthogonal array L9 is used for experimentation and the surface roughness is measured and optimized. Analysis of variance (ANOVA) is performed to know the impact of individual factors on surface roughness. Using regression analysis the theoretical values are predicted and compared with the experimental values for validation.
Haidr Msahir Ateshan* and Praveen Raj Saxena
Surface water forms the major source of drinking water and maintaining the ground water levels in the rural and urban areas of most of the developing nation of the world. Lake water is a source of drinking and domestic use purposes for rural and urban population of India. In the last few decades, parallel to rapidly developing technology, increase in population and urbanization, we have been witnessing alarming surface water pollution all over the world. The main goal of the present study was to assess lake water quality of Kattamaisamma lake. A systematic study has been carried out to assess the physicochemical characteristics of water qulity of katamysamma lake, Soorarm, Medak district, Telangana. In the study area 11 surface water samples have been collected and analyzed for the parameters such as pH, Electrical Conductivity(EC), Total Dissolved Solids(TDS), Total Hardness (TH), Total Alkalinity (TA), Sodium (Na+), Potassium (K+), Calcium(Ca+), Magnesium (Mg+2), Nitrates (NO3-), Sulphates (SO4-2), Fluoride (F-), Clorides (Cl-). The study revealed that lake waters are slightly acidic to alkaline in nature and found that the physic-chemical parameters of lake waters are higher than the prescribed standard limits for drinking purposes (IS 10500: 2012). This research work shows that the water quality of the Kattamysamma lake from Sooraram area pollution possibly due to increase of anthropogenic activities and improper release of sewage water and agricultural effluents.
O. Aniel Kumar, K. Mallikarjuna, P. R. Raju, M. Krishna Rao and L. Mutyala Naidu*
The present study represents the information about the treatment of various skin diseases by the tribals of Papikondalu forest, Andhra Pradesh, India. A total of 19 medicinal plant species belonging to 19 genera and 16 families were recorded. The documented medicinal plants were labeled alphabetically with their voucher specimen number, family name, vernacular names, parts used and mode of administration. Majority of the plant species described in the present paper was used in the treatment of abscess, septic ulcers, scabies, ring worms, allergy and pimples. The documentation of these medicinal plants against such diseases reveals that these ethnic people are still dependent on local vegetation for their life care.
Srinivasa Rao Siriki*, K. Niranjan, D. Santhosh Kumar and B. Surya Narayana.
Realizing the need for the characterization of the spatial heterogeneity of aerosol physical properties over the Indian sub-continent, an intensive field campaign was organized by the Indian Space Research Organization (ISRO) under the ISRO-Geosphere Biosphere Programme, named as the ISRO-GBP Land Campaign-I. Several research groups carried a host of instruments on mobile platforms and made representative measurements at several locations covering the entire peninsular India and a few meridional transects. The team from Andhra University, Visakhapatnam, India made extensive measurements of aerosol optical depths and near surface mass-size distributions along with the surface meteorological parameters at several locations in the states of Andhra Pradesh, Orissa and Chattsigarh, in the northeastern part of peninsular India.
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