JE-VOLUME 05 ISSUE 01 JANUARY 2016


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Volume 5 Issue 1, January 2016

Journal of Environment

ISSN

2049-8373

Publication Frequency

6 Issues per year

Pages

1-18

Publication History


Original Articles

Adsorption Studies of Heavy Metals in Refinery Effluent on Activated Carbon Prepared from Cow Bone

Rhoda Habor Gumus and Ovie-Efe Christopher Okusuwha

Pages 1-6

Multi Criteria Decision Analysis for Assessing Crop Suitability in Dro-ught Prone Puruliya District, West Bengal, India

Abhisek Santra and Shreyashi Santra Mitra

Pages 7-12

Anthocyanin–Rich Red Dye of Hibiscus sabdariffa L. Calyx Modulat-es CdCl2- Induced Hypochromic Microcytic Anaemia and Oxidative Stress in Rat Red Blood Cells

Rania M.Al Groom and Khaled Al- Kubaisy

Pages 13-18


Title

Adsorption Studies of Heavy Metals in Refinery Effluent on Activated Carbon Prepared from Cow Bone

Abstract

Activated carbon was prepared from cow bone at 800 oC using 0.5 M zinc chloride and properties were characterized. A batch adsorpt-ion study of Cr (II), Cd (II) and Pb (II) ions from refinery effluent of initial concentration of 170 mg/L, 110 mg/L and 80 mg/L respectiv-ely, was conducted. Experimental data obtained from the batch ads-orption studies was fitted in Langmuir and Freundlich adsorption isotherm models. The Langmuir and Freundlich isotherm paramete-rs RL, qm, Kf and n were determined from the adsorption equilibri-um data, where qm and Kf, which measures the monolayer capacity of the adsorbent and the extent of adsorption, were found to be 33.33 mg/L & 29.06 mg/L; 0.823 mg/L & 0.172 and 5.441 & 0.226 for Cd (II), Cr (II) and Pb (II) respectively. The RL value obtained for all the metal ions indicated favourable adsorption >0. Whilst th-at of Kf > 1 for Cr and Pb, indicating cooperative adsorption. The n values for all metal ions fall within beneficial adsorption. The corre-lation coefficient showed the best fit for Pb gave 0.999 and 0.998 for Langmuir and Freundlich respectively.

Keywords

Cow Bone, Chemical Activation, Refinery Effluent, Heavy Metals, Adsorption

Title

Multi Criteria Decision Analysis for Assessing Crop Suitabi-lity in Dro-ught Prone Puruliya District, West Bengal, India

Abstract

Increasing population in India intensifies the pressure on natural and agricultural resources. Optimum use of land is required to me-et the food demand of the growing population. Reliable and accu-rate land evaluation is necessary in formulating land use policies for sustainable development. In this regard, land suitability classifi-cation is essential in grouping particular land areas in terms of the-ir suitability for specific use. Traditional methods are not viable bec-ause of time, labour and cost constraints. The remote sensing and GIS on the contrary can effectively be used in this respect. In this paper, a multi criteria decision analysis has been carried out in GIS environment to delineate suitable production areas for five major crops in Puruliya District of West Bengal. Soil texture, erosion, veg-etative drought conditions, slope, temperature and rainfall informa-tion were considered as controlling factors in suitability assessment for each crop. The weighted overlay method based on the limitation approach of land capability classification was adopted. It was fou-nd that paddy is highly suitable to grow entirely in the district gros-sly. The other selected crops are suitable to grow in patches. If plan-ning is worked out on land suitability, then productivity may be en-hanced and sustainability in food production is achievable.

Keywords

GIS, Multi Criteria Decision Analysis, Crop Suitability, Suitability Score

Title

Anthocyanin–Rich Red Dye of Hibiscus sabdariffa L. Calyx Modulates CdCl2- Induced Hypochromic Microcytic Anae-mia and Oxidative Stress in Rat Red Blood Cells

Abstract

Protective efficacy of anthocyanin –rich dye of Hibiscus sabdariffa L. were studied against cadmium chloride (CdCl2)- induced hypoch-romic microcytic anaemia and oxidative stress in rat blood cells. Male albino rats were pretreated with red dye of HS [250 mg/kg] daily for one week, after seven days these animals were injected with CdCl2 (4 mg/kg) intraperitoneally (i.p.) 6 h after the last treat-ment and blood samples were collected for the evaluation of haema-tological parameters, oxidative stress, red blood cells counts, haem-atocrit,  haemoglobin concentrations and other blood indices (MCV, MCH, MCHC), lipid peroxidation level (MDA) and reduced glutathi-one content (GSH). The current results showed that CdCl2 significa-ntly (P < 0.05) decreased the blood picture compared to control gro-up, as well as the total glutathione (GSH), where as the level of oxidative marker malondialdehyde (MAD) was significantly (P < 0.05) elevated in rat erythr-ocytes. Supplementation of anthocyanin – rich red dye of HS counteracts the toxic effect on cadmium chlori-de on haemato-logical pictures and oxidative stress parameters. The results of the present study indicated that anthocyanin of HS posse-ss hematopoietic potential and prevent oxidative stress.

Keywords

Roselle Anthocyanin, CdCl2, Hematopoietic, Oxidative Stress Markers