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458 articles for “concentration”
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Microalgae in Bioremediation of Waste water and Production of Bioproducts
Abstract: Domestic wastewater treatment and remediation is an exclusive practice due to substantial time and scheduling needed for fruitful management. Recent waste water treatment plants are extremely mechanical and costly to build and sustain. Maximum of the domestic waste water is considered feeble or average in strength with nitrogen levels between 20–40 mg/L and phosphorus levels between 4–8 mg/L[3]. These concentrations of nitrogen and phosphorus are unwanted as they can lead …
Published in International Journal of Green Chemistry · Vol. 1, Issue 2, 2015 · pp. 37–39 Read article
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Presence of Chemical Ions in Raw and Treated Water
Abstract: Dhaka water supply and sewerage authority utilizes a section of the DND canal from Sarulia to Kajla to convey raw water from the Shitalakhya river to the water treatment plant at Saidabad. Raw water quality is poor mostly in the dry season. High heavy metal concentration in the water at the intake point is found. Aluminum (Al), Cadmium (Cd), Lead (Pb), and Mercury (Hg) are detected in river water which …
Published in International Journal of Green Chemistry · Vol. 5, Issue 2, 2019 · pp. 9–21 Read article
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Assessment of THMs Formation Potential in Treated Water
Abstract: Raw water in the Saidabad water treatment plant is treated by chlorination. Water samples were collected in February, March, July and September from the six locations of DND canal and treated by chlorine dose. Higher chlorine dose is required in dry season. The treated samples are tested for dissolved organic carbon (DOC), chloride and bromide ions. Using the test results, Trihalomethane (THM) predictive models are developed. Total THM formation is …
Published in International Journal of Green Chemistry · Vol. 5, Issue 2, 2019 · pp. 30–45 Read article
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Examination of Oil Extraction using Hexane and Ethanol: A Case Study of Coconut
Abstract: The research was aimed to comparatively study the effects of solvent extractions on three differentspecies of coconut using developed model equations of extraction and experiment conducted. The mainobjective was comparison of experimental results in terms of yields on the performance of solvents(hexane and ethanol) on the various species of coconut. The research was useful for communities in theWest African countries that are significantly dependent on financial gain from agrarian enterprise. …
Published in International Journal of Green Chemistry · Vol. 7, Issue 1, 2021 · pp. 6–26 Read article
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Particulate Matter and Management Regarding Ambient Air Pollution Surrounding coal-based Thermal Power Plants and Opencast Coal Mines
Abstract: Air pollution in a considerable lot of India’s cities exceeds national and international standards, and effective pollution control methodologies require information on the sources that add to air pollution and their spatiotemporal changeability. The suspended solids in particulate matter affect the human respiratory system (and change the production also). The environmental effect of coalmines in terms of influences the h along with a dusting of machinery was observed. The investigation …
Published in International Journal of Green Chemistry · Vol. 7, Issue 2, 2021 · pp. 1–10 Read article
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Green Synthesis, Characterization and Antimicrobial Studies of Ni(II) and Cu(II) Schiff Base Complexes
Abstract: Solvent-assisted mechanochemical reaction was used to synthesize new transition metal complexes of Ni(II) and Cu(II) with Schiff base ligand (H2L) obtained from condensation of 2-hydroxy-1- napthaldehyde with 2 aminobenzimidazole. Melting point/decomposition temperature, solubility test, FT-IR, powder x-ray analysis, conductivity measurement, magnetic susceptibility, elemental microanalysis, and UV/VIS spectral investigations were used to characterize the Schiff base and complexes. The complexes are of varied colours and have sharp melting points, and they …
Published in International Journal of Green Chemistry · Vol. 8, Issue 1, 2022 · pp. 9–18 Read article
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Invitro Studies on Isolation, Screening and Characterization of Streptokinase from Bacillus SPP
Abstract: Streptokinase have isolated from the Bacillus spp. by using fermentation. The soil sample have collected from the different area of the Lucknow. The Gram’s staining was used to determining Bacillus spp. The screening method was used for the characterization for the bacteria. The enzyme concentration measured by using Lowry’s protein estimation method. Caseinolytic activity have performed to study the enzyme activity. Many different enzymes are required to bring about the …
Published in International Journal of Green Chemistry · Vol. 8, Issue 1, 2022 · pp. 19–35 Read article
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A Novel Approach to Pulse Anodizing for Decreasing Energy Consumption and Increasing Productivity
Abstract: Anodizing is a resourceful method used to give aesthetic appearance and to prevent a metal from corrosion by forming an oxide layer over its surface. Depending upon the different fields of application various power supply such as direct current (DC) and pulsed current (PC) are used. This paper reviews an existing anodizing method which can be optimized with a few simple guidelines. Several current densities and pulse periods were tested …
Published in International Journal of Analytical and Applied Chemistry · Vol. 1, Issue 1, 2015 · pp. 21–39 Read article
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Spectrophotometric Determination of Salicylates in Urine using 3-Methylbenzthiazolinone – 2 – hydrazone
Abstract: A sensitive (direct or with column partition chromatography) spectrophotometric method for the determination of salicylates in urine using 3 – methylbenzthiazolinone - 2 – hydrazone in the presence of ceric ammonium sulfate as an oxidizing agent is presented. Beer’s law is obeyed in the concentration range of 0 – 1.6 µg ml -1. The method is accurately reproducible and can be applied in the analysis of salicylates in urine. The …
Published in International Journal of Analytical and Applied Chemistry · Vol. 3, Issue 1, 2017 · pp. 14–17 Read article
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A Sensitive Spectrophotometric Method for the Determination of Diazepam with MBTH
Abstract: A sensitive, specific spectrophotometric method for the determination of diazepam in bulk drug and formulations has been developed. The diazepam is hydrolyzed to yield 2-Methylamino-5- chlorobenzophenone which is coupled with 3-Methyl benzthiazolinone-2-hydrazone, in the presence of ceric ammonium sulphate as an oxidizing agent, to yield a blue colored solution having an absorbance maximum at 585 nm. It obeys Beer’s law in the concentration range of 0 – 4 µg / …
Published in International Journal of Analytical and Applied Chemistry · Vol. 3, Issue 2, 2017 · pp. 1–8 Read article
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Regression Models to Examine Water Quality Index of Akabuta Stream
Abstract: Research carried out in this article is aimed at establishing mathematical tools, models that be used to monitor and predict water quality index concentration of Akabuta stream. The models developed seemed to be useful in monitoring and predicting water quality index as coefficient of determination of station A. Keywords: akabuta, Akabuta community, regression model, stream, water quality index
Published in International Journal of Analytical and Applied Chemistry · Vol. 3, Issue 2, 2017 · pp. 27–31 Read article
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Removal of fluoride from Ground Water Sample Using Basil Leaves as Adsorbent
Abstract: High Fluoride in Ground water has become one of the most important toxicological and geo-environmental issues. During the last decade, high fluoride concentration resulted in a new disease called “Fluorosis” which has been highlighted throughout the world. Among the water treatment methods available, Adsorption is found to be one of the most effective method for water purification. The Present investigation was carried out to find the suitability of Tulsi leaves …
Published in International Journal of Analytical and Applied Chemistry · Vol. 3, Issue 2, 2017 · pp. 23–26 Read article
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Spectroscopic determination of toxic elements in various milk samples, collected from different environments
Abstract: In the present study, a simple sample preparation method has been established for the determination of toxic elements (TEs) Cd, Cr and Pb in raw milk samples of buffalos and cow. These samples were collected from different locations such as industrial, roadside and near to residential areas of Karachi, Pakistan. Concentrations of understudy TEs were determined by electro-thermal atomic absorption spectrometry (ETAAS) prior to conventional wet acid digestion. The results …
Published in International Journal of Analytical and Applied Chemistry · Vol. 4, Issue 2, 2018 · pp. 33–41 Read article
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Application of a graphene oxide for determination of Cadmium, Lead, Copper and Zinc ions at trace level in personal Care Products using Solid Phase Extraction
Abstract: A novel and simple procedure Solid Phase µ-extraction was successfully used as a sample preparation method for the pre concentration and determination of Cd, Pb, Cu, and Zn in different personal care products samples. In the first screening, a five variables were selected with low (-) and high level (+) and were inspected by Plackett–Burman. In order to further optimization, a central 23 +star orthogonal composite design (CCD) was applied …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 1, 2020 · pp. 14–23 Read article
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POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) AND HEAVY METALS IN SELECTED DRIED SEA FOODS FROM PORTHARCOURT CITY NIGERIA
Abstract: Polycyclic aromatic hydrocarbons (PAHS) and heavy metals constitute environmental recalcitrant pollutants which are toxic and carcinogenic. The levels of PAHs and heavy metals (As, Hg, V, Zn, Pb, and Cr) in dried sea foods: prawn (Panaeus monodon), water snail (Bithynia tentaculata), periwinkle (Littorina littorea), conch (Lobatus gallus) and Oyester (Ostrea edulis) were determined. PAHs were determined using GC/FID and the heavy metals were determined using AAS. Total PAHs ranged from …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 1, 2020 · pp. 24–34 Read article
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Review on Processing of Milk and Milk Products
Abstract: Milk (Toned, Standard, Janta, and Special) in 200ml, 500ml, and 1 litre packs, butter, paneer, Mattha Lassi, Peda, and Dahi are currently produced (curd). At the Reception department, samples of the milk received from the societies are taken for quality control. The milk is weighed before being transported to the Processing Section for storage and refrigeration. The milk is diverted here for pasteurisation, milk packing, and the production of dairy …
Published in International Journal of Analytical and Applied Chemistry · Vol. 8, Issue 1, 2022 · pp. 21–39 Read article
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Varieties of Mulberry, Additives and Patterns of Protein in the Fifth Instar Larvae of the Silkworm Bombyx mori (L) (Race: Bivoltine Double Hybrid)
Abstract: The species mulberry, Morus alba (L) (Variety: Kokuso-27) and mulberry, Morus indica (L) (Variety: Kanva-2), the two varieties of mulberry were assessed for comparison with available variety in Baramati, mulberry, Morus indica (L) (Variety: Baramatiwali) for their influence on the pattern of banding of the protein in mature fifth instar larvae of silkworm, Bombyx mori (L) (Bivoltine Double Hybrid). Apparent variations were observed in number of bands and position of …
Published in International Journal of Analytical and Applied Chemistry · Vol. 8, Issue 2, 2022 · pp. 6–18 Read article
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Lantana camara Leaves: An Important Source of Allelochemicals
Abstract: Allelopathy may provide alternatives to synthetic herbicides for weed control. Allelopathy is a unique, natural and an environment-friendly technique that may be used for weed control. Lantana camara has allelopathic properties which effect in the germination and growth of surrounding plants. The aqueous leaf extract of L. camara was found to have inhibitory effect on germination of Parthenium hysterophorus. The results indicated that the inhibitory effect was much more pronounced …
Published in International Journal of Chemical Separation Technology · Vol. 1, Issue 2, 2015 · pp. 5–9 Read article
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Radiation and Chemical Reaction Effect on MHD Flow Past an Accelerated Isothermal Inclined Plate in a Rotating Fluid with Variable Mass Diffusion
Abstract: In this paper, we present radiation, chemical reaction and rotation effects on unsteady MHD flow past an accelerated isothermal inclined plate with variable mass diffusion. The non-dimensional governing equations are solved using Laplace transform method. The velocity, temperature and concentration profiles are discussed for various physical parameters like, radiation parameter, chemical reaction parameter, rotation parameter, Prandtl number, Schmidt number and time. Finally, physical quantities such as Nusselt number and Sherwood …
Published in International Journal of Chemical Separation Technology · Vol. 3, Issue 1, 2017 · pp. 1–14 Read article
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Investigating study on flux enhancement techniques in a Nanofiltration pilot plant – An Experimental overview
Abstract: Water consumption and utilization in chemical allied industries is increasing progressively and global availability of fresh water is reducing. Reclamation of water from various industrial waste streams is play very vital role to overcome the current situation of water scarcity. Various conventional treatment methods are available for water reclamation. The performance of the membrane separation process, in terms of flux and rejection of membrane is directly influenced by the resistances …
Published in International Journal of Chemical Separation Technology · Vol. 4, Issue 2, 2018 · pp. 27–34 Read article