Scopus Indexed

SCImago Journal & Country Rank

Submission Deadline
(Vol-13, Issue-05)

20 Nov 2020

Day
Hou
Min
Sec

Publish on ( Vol 13 , Issue 04 )
30 Nov 2020

The Research Journal of Chemistry and Environment

Aim and Scope

Aim

The Research Journal of Chemistry and Environment (ISSN: 09720626) is an international open-access journal publishes twelve times each year.The Research Journal of Chemistry and Environment is an international, inter-disciplinary peer-reviewed journal of high quality devoted to the publication of original research and review papers on any subject at the interface among Chemistry, Chemical Sciences, Environmental Sciences, Bio Sciences, Pharmaceutical Science, Chemical Engineering, Environmental Engineering , particularly those of relevance to industry aiming towards economically and environmentally sustainable industrial processes. All papers subjected to peer-review by members of editorial board or qualified reviewers by using of double blind peer review. The Journal welcomes the submission of manuscripts that meet the general scope and criteria of journal.

Scope

The Research Journal of Chemistry and Environment (ISSN: 09720626) is a peer-reviewed journal. The journal seeks to publish original research articles that are hypothetical and theoretical in its nature and that provide exploratory insights in the following fields but not limited to:

Chemical Sciences Environmental Sciences
Bio Sciences Pharmaceutical Sciences
Chemical Engineering Civil Engineering and Environmental Engineering
In any field related to Chemicals and Industries including Plastics / Drugs / Pesticides / Polymers / Textiles / Dyes / Papers / Steel / Metals / Foods/ Paints / Rubber / Fertilizers / Leather / Cement / Sugar / Distilleries / Explosives / Oils / Petroleum / Petrochemical / Fragrances etc. In any field related to Environment, Energy, Power, Pollution (Air, Water and Noise Pollution ) in Industries, Land, Cities, Rivers, Lakesetc. -in inter-related fields of Chemistry, Chemical Industries and Pollution.

The Research Journal of Chemistry and Environment

Latest Articles

Journal ID: RJCE-07-09-2020-53 Category: RJCE Total View - 377

WET OXIDATIVE METHOD FOR REMOVAL OF 2-CHLOROPHENOL IN WATER USING Fe(III), Co(II), Ni(II) and Cu(II) -IMPREGNATED SiO2 CATALYSTS

by Dr. HRISHIKESH SARMA, ANANYA DAS,
Abstract : The common practice of microbiological oxidation of organic pollutants in the effluents of organochemical and petroleum-based industries is not effective in mineralizing chlorinated phenols, which are persistent and toxic to organisms even at low concentrations. Effluents containing these recalcitrant organics require tertiary treatment and catalytic wet oxidation (CWO) has shown tremendous promise in this regard. The present work emphasizes on the catalytic wet oxidation of 2-chlorophenol (2-CP) with the assistance of catalysts prepared by impregnating transition metal ions [Fe(III), Co(II), Ni(II) and Cu(II)] on the surface of SiO2. The structural features of the catalyst were determined with FTIR, powder XRD and SEM. The amount of metal entering into silica matrix was estimated with atomic absorption spectrometry(AAS). The oxidation was carried out in a high-pressure stirred reactor at different process variables. The conversion achieved with Fe(III), Co(II), Ni(II) and Cu(II) impregnated SiO2 in 6 h is respectively 61.7, 78.3, 59.2 and 73.5% with 2-CP:H2O2 molar ratio of 1:1. It was observed that with increasing temperature, catalyst load and mole ratio of H2O2 in the feed, the oxidative conversion could be further improved both in presence of the chemical oxidant and without it. Effects of various reaction conditions, kinetics of the catalytic process and the probable mechanism of oxidation have been discussed.
Full article
Journal ID: RJCE-20-08-2020-47 Category: RJCE Total View - 349

Dissipation of 3 commercial formulations of penconazole 10% EC on greenhouse tomatoes in Lebanon

by Mohamad I. Abou Zeid, Adla M. Jammoul, Khalil C. Melki, Yusuf Abou Jawdah, Mireille Kallassy Awad,
Abstract : In Lebanon, same type of commercial formulations of an active ingredient from different manufacturers are registered and given the same critical Good Agricultural Practice (cGAP) as the reference formulation in spite of the fact that they differ in composition of co-formulants. The international guidelines require the performance of crop field trials for, at least, those active ingredients with claimed pre-harvest interval (PHI) of less than 7 days. Four comparative dissipation studies of 3 commercial formulations of penconazole 10% EC were performed on 4 varieties of greenhouse tomatoes under commercial field conditions along the coastal area of Lebanon. Two field replicate samples were taken at 5 different time intervals to assess the penconazole residue level. The analysis was conducted using gas chromatography tandem mass spectrometer GC/MSMS. Penconazole dissipation was described by 1st order kinetics with correlation coefficients ranging from 0.80 to 0.94 and a PHI of 1 day for penconazole is suggested. Data were statistically analysed to evaluate the dissipation behavior and the effects of field conditions among the 3 registered formulations. No statistically significant difference in the rate of dissipation among the three commercial formulations was revealed. It would be safer for food consumption to perform crop field trials under local conditions for formulations differing in co-formulants and claimed PHI of less than 7 days as per the guidelines.
Full article
Journal ID: RJCE-19-08-2020-46 Category: RJCE Total View - 350

Tribological performance of prepared polymerized jojoba grades including jojoba oil and their optimization

by Dalia M. Abbas, Abeer M. shoaib, Mohamed Y. ElKady, Ismail, E. A., Hussein, M. F., El-Adly R. A,
Abstract : The scope of this study is investigating the tribological characteristics of prepared bio-based thread grease from renewable sources with polymerization products from jojoba oil as additives. Accordingly, the first part in this study aims to prepare three molecular weights grades from polymerization of jojoba oil using microwave technique. The physicochemical and tribological properties of obtained polymerized jojoba including jojoba oil were determined; their tribological behavior studied in term of coefficient of friction and wear scar diameter using four ball machine. The results revealed that the polymerized jojoba with low molecular weight shows the lowest friction coefficient and wear scar diameter compared with high molecular weight polymerized jojoba grades and jojoba oil before polymerization. This has been discussed based on the unique properties of the chemical structure of jojoba. Two correlations are introduced using regression analysis to relate the coefficient of friction (FCO) and wear scar diameter (WSD) to the affecting variables. The studied affecting variables are the load, the velocity (revolution per minute, RPM) and the polymerization time. ,Optimization of these variables showed that minimum FCO and WSD could be achieved after polymerization time of 1.2 hr, under load of 196 N with a speed of 600 rpm.It was concluded that the polymerized jojoba grade with low molecular weight has superior tribological performance as additives for bio-thread grease
Full article
Journal ID: RJCE-19-08-2020-45 Category: RJCE Total View - 344

Designing a Lab-Scale Biofilm Reactor with Coconut Shell and Gravels as a Surface Medium for Municipal Wastewater Treatment

by Satyajeet Arya, Sarita Mishra, Dr. Ajay Mishra,
Abstract : Wastewater is of serious concern all over the world. Categorically, Municipal wastewater occupies a big percentage of total wastewater. Several methods were introduced for treatment and many methods are still in the research phase. High cost and low efficiency possess hurdles inapplicability of advanced wastewater treatment technologies in middle and lower-income countries. In this study, a low cost and efficient biofilm reactor were evaluated as an improved method to treat municipal wastewater. A lab-scale biofilm reactor was designed in which coconut shells (BRC) and gravels (BRS) were introduced as the surface medium for microbial growth. Samples were collected from municipal wastewater storage at Cuttack, Odisha India. Key indicators (TDS, BOD, SS, and HRT) were continually monitored on the 2nd, 4th, 6th and 8th day determine the efficiency of the biofilm reactor. Results showed a remarkable reduction in TDS from the 2nd day to 8th day onwards in BRC (coconut shells) from 4.87% to 28.8%, whereas, BRS (gravels) showed a reduction from 11.3% - 40.5%, respectively. BOD reduced under BRC from 4.54% to 22.7% and 9.09% to 36.4% under BRS, respectively. A visible improvement was observed in the water quality on both medium BRC and BRS. Hydraulic retention time (HRT) was also performed for 12 hours to check the efficiency of the reactor to remove the wastes. During 12 hours of HRT promising decline in TDS (27.0% to 39.5%), SS (12.2% to 48.5%) and BOD (9.09% to 45.5%). Our results
Full article
Journal ID: RJCE-16-08-2020-42 Category: RJCE Total View - 442

Geochemical study of Ecological Risk Potential of Heavy Metal Contamination in Urban Lake Sediment - Malaysia - from the Context of Ecological Disturbance Theoretical Tradition

by Godwin U. Aliagha, Firuza Mustafa, Jamilah Mohamad, Choong Weng Wai, Seow Ta Wee,
Abstract : This study quantified the degree of heavy metal contamination and ecological risk potential from metals concentration in urban lake sediment. The analytical method involved six geochemical indices (enrichment factor (EF), geo-accumulation index (Igeo), contamination factor (CF), degree of pollution, modified degree of contamination, & pollution load index (PLI). Sediment samples were analysed using ICP-MS. The results revealed that EF and Igeo of trace elements were in the order of Pb > Cr > Cu > Mn > Ni, whereas the order of heavy metals was Na > K > Fe > AL. Na and Pb manifested highest evidence of anthropogenic enrichment and geochemical anomaly. Based on CF, the sediment is heavily contaminated by Pb, Na, moderately by Fe, K, AL. In the events of profound ecological disturbance, and resuspension of sediment contaminants to the water column, the contamination effects of Pb, Na, Fe, K, and AL on biota will range from heavy to moderate contamination. Assessment using PLI revealed that the sediment is in 80% of locations polluted and in progressive state of deterioration by the metals. Overall degree of metals ecological risk potentials is higher in the northern and southern outlet parts of the lake, especially during dry season.
Full article
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