ID: 56992
Title: Research on key characteristics of halloysite nanotubes for nanotechnology applications
Author: John Keeling
Editor: None
Year: 2012
Publisher: DMITRE, Government of South Australia, Vol 59, December 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Earth Resource Journal - Mesa
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56991
Title: The social benefits of mining for South Australia
Author: Mike Rann
Editor: None
Year: 2012
Publisher: DMITRE, Government of South Australia, Vol 59, December 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Earth Resource Journal - Mesa
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56990
Title: Energy Resources: Petroleum exploration and development
Author: None
Editor: None
Year: 2012
Publisher: DMITRE, Government of South Australia, Vol 64, March 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Earth Resource Journal - Mesa
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56989
Title: Hydrogeochemistry: a regional prospecting tool in South Australia?
Author: David J Gray, Nathan Reid, Roger Fidler, Martin Fairclough and Tania Wilson
Editor: None
Year: 2012
Publisher: DMITRE, Government of South Australia, Vol 64, March 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Earth Resource Journal - Mesa
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56988
Title: Novel nanoparticles for water and waste water treament
Author: Velhal S G, Kulkarni S D and Jaybhaye R G
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Treatment, nanoparticles, titanium dioxide, water
Abstract: Water is a vital component of life on earth. The existence of life on earth is made possible largely because of the presence of clean water which is important to metabolic processes within the body. Clean and fresh water are essential for the very existence of life. The different pollutants in aquatic system will interfere with many beneficial uses of water. Contamination of natural water sources by hazardous pollutants affects the human health and ecosystem. Hence photo catalytic processes for water and waste water treatment are new area having vast applications. This review is focused on principle, mechanism and applicaitons of titanium dioxide nanoparticles for water and wastewater treatment.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56987
Title: Antioxidant potential in vegetable oil
Author: Rubalya Valatina S and Neelamegam P
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Antioxidants, vegetable oils, oxidative stress, effect of temperature
Abstract: This paper reviews the properties of natural antioxidant in vegetable oil which is one of the most significant active components that plays an important role in reduction fat oxidation. Frying is widely used in food industry and household cooking which leads to degradation of oil that induces important chemical changes in oils, specifically oxidation, polymerizatin, isomerism, hydroysis and cyclization. Effective control over the limitation of the above reaction is technically done by the simplest way of the natural antioxidant in the oil. Antioxidants reduce the oxidative stress in cells damage and health problems including cancers, degenerative diseases, cardiovascular diseases, inflammatory diseases etc. This study reveals the stability and efficiency of natural antioxidants present in sunflower oil, groundnut oil, soya bean oil, palm oil, sesame oil, rice bran oil and corn oil and the changes on heating.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56986
Title: An overview of ozonation associated with nano-filtration as an effective procedure in treating dye effluents from textile industries with the help of a bubble column reactor
Author: Palit Sukanchan
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Persistent, ozonation, textile, dyes, oxidation, tertiary treatment, nano-filtration
Abstract: Recalcitrant chemicals in wastewater cannot be degraded by primary and secondary treatments. Primary treatment comprises flocculation and coagulation while secondary treatment comprises activated sludge process or filtration through trickling filters. Tertiary treatment process comprises ozonation, membrane filtration, adsorptin and other advanced oxidation processes. The importance of ozonation as an advanced oxidation process is due to the fact that ozonation process is environmental friendly and sound. The ozone method is known to be effective for decomposing organic chemicals containing carbon-carbon double bonds, olefenic double bonds, acetylenic triple bonds, aromatic compounds, phenols, polycyclic aromatics, heterocyclics, carbon-nitrogen double bonds, carbon - hydrogen bonds, silicon-hydrogen and carbon-metal bonds. Synthetic dyes and pigments released to the environment in the form of effluents by textile, leather and printing industries cause severe ecological damages.
Due to the inhibitory nature of many compounds for biological oxidation, the need for pretreatment by advanced oxidation process (AOP) has become essential. Ozonation of water is a well known technology and the strng oxidative properties of O3 and its ability to effectively oxidise many organic compounds in aqueous solution have been well documented. Ozone treatment of several types of wastewater has resulted in considerable COD reduction and has been used for treatment of dyes, phenols, pesticides etc. In recent years, ozonation is emerging as a potential process for colour removal of dyes, since the chromophore groups with conjugated double bonds, which are responsible for colour can be broken down by ozone either directly or indirectly forming smaller molecules, thereby decreasing the colour of effluents.
Due to its high electrochemical potential (2.08V), O3 is the strongest oxidant available and applicable as compared to H2O2 (1.78 V) and can react with several classes of compounds through direct or indirect reaction. Unlike other oxidising agents such as Cl2 oxidation with O3 leaves no toxic residues that have to be removed or disposed. Nano filtration is very effective and it is the next generation science and technology.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56985
Title: Theoretical study on the absorption of SO2 on alumina aerosol surface
Author: Kemei Pei, MIngyang Su and Lin Chen
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Alumina, absorption, SO2, aerosol
Abstract: The absorption of SO2 on alumina aerosol surface is explored by quantum chemistry calculations in Gaussian O3 program. The surfaces of two most important anamorphosises alpha-Al2O3 and gamma-Al2O3 are modeled. The results indicate that the nature of SO2 absorbed on alpha-Al2O3 is chemical process and strong bonds are formed between SO2 and gamma-Al2O3 but SO2 on gamma-Al2O3 is more physical absorption. Vibration frequency analysis indicates that the typical vibration frequencies of SO2 will be disappeared when it absorbed on alpha-Al2O3 and the main modes of SO2 absorbed on gamma-Al2O3 show red shift or blue shift character. The absorption energies are also calculated.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56984
Title: Development of starch-gelatin complex microspheres as sustained release delivery system
Author: Vedha Hari B N, Praneetha T, Prathyusha T, Mounika K and Ramya Devi D
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Jackfruit seed starch, FTIR, ionotropic gelatin technique, microsphere
Abstract: The starch was isolated from jackfruit seeds and evaluated for its performulation properties like tapped density, bulk density, particle size. The FTIR analysis was done and compared with that of the commercially availabe starch which confirmed the properties. Using the various concentrations of jackfruit seed starch the microspheres were prepared, combining with gelatin by ionotropic gelatin technique. The developed microsphrees were subjected to analysis of particle size, drug content, entrapment efficiency and percentage yield. The spectral analysis confirmed the presence fo drug and absence fo interactions. Scanning electron microscope image showed that the particles were in spherical shape with a rough surface. The in vitro drug release in water for 12 hours proved to be in the range of 89-100%. The various kinetic models were applied using release data to confirm the mechanism of drug. It was concluded that the jackfruit starch gelatin microspheres gave satisfactory results and met pharmacopieal limits.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56983
Title: Spatial prediction and characterization of heavy metal pollution in soils of Coimbatore district using surfer package
Author: Sherene T
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Spatial prediction, total heavy metals, soil pollution index (SPI)
Abstract: A survey work was undertaken to assess the concentration of heavy metal pollution in soils of Coimbatore district. Totally three hundred and eight surface (0-15 cm) soil samples were collected around the industrial areas by using auger. Among the different industrial areas, electro plating and sewage water irrigated areas fell in excess tolerable category for Pb and Ni. As per SPI scale, the soils collected in the vicinity of electro plating, textile, casting and sewage water irrigated fields seemed to be dangerously polluted with toxic Pb, Ni, Cd, Cr, Cu and Zn. The delineation of Pb and Ni Contaminated sites of Coimbatore district was done using SURFER software package. Therefore, there is a possibility of silent epidemic of environmental metal poisoning from the ever-increasing amount of metals wasted into biosphere.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56982
Title: Study of ground water quality of Ulhasnagar city in Thane district, Maharashtra, India using multivariate and microbial analyses
Author: Verandani S and Vardhan D
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Physicochemical study, water quality parameters, ground water, pollution study correlation analysis, Ulhasnagar area
Abstract: Water samples were collected from 25 sampling sites during the pre-monsoon season in Ulhasnagar city, Thane district in Mumbai. Different physicochemical parameters were measured and the samples were also analyzed for dissolved metal concentrations. The surface water physicochemical parameters included pH, temperature, turbidity, hardness, total alkalinity, dissolved oxygen (DO), total dissolved solids (TDS), electrical conductance (EC) and turbidity while the dissolved metals were Cd, Cu, Pb and Cr. The ranges for the physicochemical parameters were 28-32 degrees C for temperature, 6.8-8.5 for pH, 0.4-12.8 mg/l for DO, 0-100 NTU for turbidity, 22-580 ppm (as CaCO3) for hardness, 44-61 ppm for total alkalinity, 250-520 mg/l for TDS and 554-1040 mhos/cm while the dissolved metals (mg/l) were 0.001-0.008 for Cd, 0.002-0.012 for Cu, 0.04-1.30 for Pb and 0.000-0.15 for Cr. Based on mulitvariate analysis and correlation studies, lead was identified as major dissolved metals contaminant in most of the analyzed samples. Microbial analysis was also carried out by testing the samples for E. coli and thermo tolerant bacteria and ranges for these were from 2-18 ppm for E. coli and 2-19 ppm for the thermo tolerant bacteria.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56981
Title: Experjmetnal investigation of energy saving in air conditioning system using silver nanofluid
Author: Ehsan Firouzfar and Amin Hosaini Rivandi M
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Thermosyphon heat exchanger, Energy saving, silver nanofluid, air conditioning
Abstract: Application of methanol-siver nanofluid as the working fluid in thermosyphon heat exchanger in an air conditioning system was investigated and compared with the case where pure methanol is used as the working fluid and the rate of energy saving was calculated. First, the influence of two key parameters of the inlet air conditions namely dry bulb temperature and relative humidity, on the effectiveness of a 3-row heat pipe heat exchanger with pure methanol as the working fluid was investigated at pilot scale. Then the experiments were repeated using methanol- silver nanofluid as the working fluid. Experimental results showed that by using methanol-silver nanofluid, we will save around 8.8-31.5% of the energy by the evaporator and 18-100% by the condenser of thermosyphon heat exchanger. The results of this study are expected to lead to guidelines that will allow the improved performance of the air conditioning systems which reduce its energy consumption.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56980
Title: Synthesis an dantimicrobial activities of Mn (II) and Fe (III) complexes with N-S donor ligand
Author: Gupta Y K , Agarwal S C, Madnawat S P and Ram Narain
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Mn(II) and Fe (III) complexes, synthesis, anti microbial activities, N-S donor ligand, Bithiourea
Abstract: The complexes of ML2 were prepared where M=Mn (II) and Fe(III) and L = 2.5-diamino-1,3,4-thiadiazole. The ligand (L) has been prepared by cyclisation of bithiourea in a 3% hydrogen peroxide medium. The complexes are non-electrolyte in DMF. The elemental anaysis, magnetic measurements, conductivity measurements and spectral studies of the complexes were carried out. 2,5- diamino-1,3,4-thiadiazole acts as neutral tridentate ligand and coordinates through the sulphur atom and nitrogen of the amines. The complexes exhibited octahedral geometry. the antimicrobial activities of ligand and its complexes were screened using sensitivity test, minumum inhibition concentration and minimum bacterial concentration method. Metal chelates showed greater antimicrobial activities as compared to the control and the ligand. The metal chelates and the ligand did exhibit activity agianst Aspergillus niger and Penicillin species.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56979
Title: Remediation of TCE-contaminated groundwater using integrated biosparging and enhanced bioremediation system
Author: Kuo Y C , Liu J K, Chien H Y, Chen C C and Kao C M
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Bioremediation, biosparging, co-metabolism, gene analysis, groundwater contamination, TCE
Abstract: A biosparging well (BSW) was installed at the upgradient area of the test site for air injection. Brown sugar, which was used as the primary substrate, was pressure-injected into the TCE plume through the BSW to enhance the rate of TCE co-metabolism. To evaluate the effectiveness of TCE bioremediation, monitor wells were installed in series down gradient of the BSW along the groundwatre flow path. Polymerase chain reaction (PCR) and nucleotide sequence analyses indicate that TCE-degrading enzymes (e.g. toluene monooxygenase, toluene dioxygenase, phenol mono oxygenase and particulate methane mono oxygenase) were identified in field groundwater samples after the air substrate supplement.
Results from the pilot-scale study indicate that the aerobic co-metabolism was the major cause of the decrease in TCE concentrations. Without primary substrate supplement, intrinsic biorremediation and injection of air and nutrients alone could not enhance the aerobic co-metabolism meachanism and cause the decrease in TCE concentrations within the plume.
The occurrence of aerobic TCE co-metabolism could be confirmed by the following investigations within the plume: (1) significant decrease in TCE concentrations; (2) increase in chemical oxygen demand (COD) concentrations and microbial populations; (3) increase in dissolved oxygen (DO) and oxidation -reduction potential (ORP) in the BSW; (4) significant depletion of DO and decrease in ORP after the supplement of substrate; (5) production of CO2 and decrease in pH value and (6) detected specific TCE-degrading genes.
Approximately 97 and 92% of TCE was removed in BSW and monitor well located 5 m down gradient of the BSW. The operation of biosparging caused the shifting of low oxygen conditions inside the plume to aerobic conditions. Results indicate that the integrated in situ biosparging and enhanced aerobic bioremediation is a feasible and promising technology to remediate TCE-contaminated groundwater
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56978
Title: Synthesis of 2, 6- Di-(3,4-Dimethyl Phenyl) pyrylium fluoroborate and perchlorate in single step salts using 3, 4- Dimethyl acetophenone
Author: Byun Jeong-Gyu, Wie Jinhyeong, Seo Youngmi, Kim Hyunook and Cho Sung-II
Editor: Dr Shankar Gargh
Year: 2012
Publisher: Research Journal of Chemistry and Environment, Vol 16 (2), June 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Research Journal of Chemistry and Environment
Keywords: Pyrylium salts, synthesis, sensitizer, LC/TOF-MS, UV/VIS
Abstract: Due to its high conductivity, pyrylium has been frequently used in an electron transfer reaction or in synthesis of various sensor materials. Traditionally, the compounds have been synthesized using various methods; mostly in multiple steps. In this study, two pyrylium salts, ie. 2, 6 - di-(3,4-dimethylphenyl) pyrylium fluoroborate and perchlorate have been synthesized in a single step. The synthesis of the products was confirmed by LC/TOF-MS and FT-IR analyses.Their photo-properties were analyzed using UV/VIS spectrophotometry while their electron transfer capacities were analyzed with a conductivity meter and found their electron conductivities high. When the synthesized compounds were dissolved in acetone, the formation of green fluorescent material could be observed. The fluorescent material can be used as a sensitizer in the environmental sensor manufacturing industry.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None