JE-VOLUME 03 ISSUE 01 JANUARY 2014


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Volume 3 Issue 1, January 2014

Journal of Environment

ISSN

2049-8373

Publication Frequency

6 Issues per year

Pages

1-18

Publication History


Original Articles

Water Balance of Emamzadeh-Jafar Basin South West of Iran

Jahangir Ehsani, Sohrab Nazari and Jahanbakhsh Ehsani

Pages 1-4

Geochemistry and Heavy Metals in the Soils of Unique Tropical Rice Agricultural Ecosystem

V.M. Kannan, Toms Augustine, Navya Cherian and Mahesh Mohan

Pages 5-11

Impact of Aluminium Company Wastewater on Water Quality along the Drainage

C.T. Onwordi, A.A. Olabinjo, S.A. Bakare and B.K. Oguntade

Pages 12-18


Title

Water Balance of Emamzadeh-Jafar Basin South West of Iran

Abstract

Recent development of Geographic Information System (GIS) makes it possible to capture and manage a vast amount of spatially distributed hydrological paramet-ers. In this paper, a spatially distributed hydrologic model is used to analyze water balance of the Emamzadeh Jafar Basin, Iran. The data used in this study consist of: surface water inflow, groundwater inflow, precipitation, evapotranspiration, groundwater outflow and surface water outflow. The water balance is an accounting of the inputs and outputs of water. The results of water balance show that in some parts of the study area, the amount of the balance is between 1294.01 to -5815.46 m3 per pixel. Because of the lack of rain and overuse of water in some parts of the study area balance is negative. So the study area should be management.

Keywords

Water Balance, Distributed Hydrological Model, Emamzadeh Jafar

Title

Geochemistry and Heavy Metals in the Soils of Unique Tropical Rice Agricultur-al Ecosystem

Abstract

The accumulation of heavy metals in the wetlands especially in paddy fields is dra-stically increasing through the inputs of irrigation, surface runoff, usage of agroch-emicals and atmospheric deposition. But the transformations and distribution of these metals are mainly controlled by geochemical parameters. The present study focused on the geochemistry and heavy metal concentrations in the Kuttanad, India, a unique tropical rice cultivation system. A total of 42 samples were collect-ed and analyzed for geochemical parameters like pH, organic carbon, total N, total P and heavy metals (Zn, Cd, Pb, and Cu) by adopting the standard methods of analysis. The results revealed that the soils of Kuttanad are highly acidic and organic rich. The values obtained for heavy metals were compared with sediment quality guidelines which showed that Zn comes under highly polluted class. All metals were under Threshold Effect Level except Cu, which falls between Threshold Effect Level and Threshold Effect Concentration. A positive correlation was observ-ed between the geochemical parameters and heavy metal concentrations. The result also showed that the fractions of Zn, Cd and Pb are highly available forms and could cause serious problems. The accumulation of pollutants in this system is mainly due to the restriction of natural flooding and increased input.

Keywords

Agricultural Ecosystem, Geochemistry, Metals, Paddy, Pollutant, Wetland, Tropical Rice

Title

Impact of Aluminium Company Wastewater on Water Quality along the Drainage

Abstract

An assessment of the impact of wastewater discharged from Aluminium Company into an open drainage was carried out, as a result of the linkage of the drains to nearby water body used for cultivation. Wastewater samples were collected two points before discharged point (BDP), point of discharge (POD) and three points after discharged point (ADP) during the months of February and March, 2011. Physicochemical parameters and metals (Al, Cr, Cu, Ni, Pb and Zn) were analysed in the wastewater. Physicochemical parameters were analysed using the APHA sta-ndard methods while metals were determined by atomic absorption spectrophotom-eter. pH values of the BDP, POD and ADP were found to be in the range of 5.00-6.20; 6.35-6.70 and 4.80-5.9 respectively. pH results of the various sampling points were above the permissible level of FMENV guideline regulation; this shows the effects of other activities apart from this aluminium wastewater. The BOD and COD results at various points were not within the regulatory limit. The metal mainly Cr, Cu, Ni and Pb are all within the limit of discharge while Al and Zn with mean values of BDP, POD and ADP were 47.2±2.0 and 2.67±0.06; 51.5±0.3 and 2.81±0.04; and 44.1±5.9 and 2.58±0.05 are not within the stipulated FMENV guideline regulation. Test (p=0.05) showed significant difference between BDP and ADP in some water quality parameters analysed. It is expedient to treat the waste-water prior to discharge into open drains.

Keywords

Wastewater, Aluminium Company, Water Quality, Drainage, Physicochemical Parameters