Vol. 6 & Issue 1 ; Section D : Environmental Sciences

Date : Nov.2015 to Jan.2016

 

Study of the potential impact of mine activity on heavy metal fractionation of agricultural soils around an abandoned mine near Marrakech city – Morocco

Barkouch Yassir, Khadiri Mohy Eddine, Ait Melloul Abdelaziz,Maaroufi Ghizlan, Alain Pineau

  • Abstract

    The chemical forms of some heavy metals in soils and mine tailings around Kettara mine in north-west of Marrakech city (Morocco) were studied by determining soil Cu, Pb, Se and Zn species using standard solvent extraction and Atomic Absorption Spectrophotometric techniques. The Chemical pools of the metals indicated that the metals were distributed into six fractions with most of the metals residing in the non-residual fractions, suggesting how readily the metals are released into the environment. Considering that the metals mostly occur in the most available forms, it is most likely that the metals must have been derived from a variety of human activities involving dredging, processing and use of metals and/or substances containing metal contaminants, a specially mining activity that can pose a risk for the environment due to discharge of tailings all around the mine area. 

A Study of Seasonal Physicochemical Parameters in River Narmada

Zahida Bano, Rajandra Chauhan and Najeeb Ahmad Bhat

  • Abstract

    The present study was designed to demonstrate the seasonal variations in physico-chemical parameters of River Narmada water for a period of two years from Nov. 2010- Oct. 2012. Water samples were collected on seasonal basis and analyzed for the estimation of water temperature, air temperature, pH, Dissolved oxygen; total dissolved solids, electrical conductivity, free CO2, alkalinity, total hardness, calcium hardness, magnesium hardness, chloride, nitrate nitrogen and phosphate were also recorded. These parameters were compared with water quality standards to indicate probable pollution in the River Narmada. The overall water quality of the study sites remained within the safe limits throughout the study period. An attempt has been made to explain the effect of seasonal changes on physico-chemical characteristics of river
    Narmada water.

Isolation of Heavy Metal Tolerant Fungi from Industrial Discharge

Fatma Migahed, Gehad Fawzy , Ahmed Abd Elrazak

  • Abstract

    Industrial Discharge Effluent samples in addition to sediments near to discharge pipes were collected from four factories located at Mansoura city,Dakahlia governorate including ; Delta fertilizer factory (DFF), Talkha electric power plant (TEP), Marble and Granite factory (MGF) and Sandoup oil and soup factory (SOSF). Effluent samples were analyzed for physicochemical parameters, heavy metal concentration and mycological analysis. Among the heavy metals Chromium and Lead ions showed a level higher than WHO guideless. Fifty five and Fifty six resistant fungal isolates respectively were isolated from the collected sediments and discharges of the four factories through the four seasons. The Minimal Inhibitory Concentrations for the resistant isolates were determined and the most potential resistant fungal isolates were identified. The most resistant isolates were found to belongs to genera Zygomycetes , Ascomycetes and Deutromycetes .

Assessment of drinking water quality to investigate reasons behind water borne gastroenteritisat Tissar Village Tehsil Shigar, Baltistan Pakistan

Ajaz Ali, Khadim Hussain, Syed Jarrar Hussain,Nasir Hussain

  • Abstract

    The present study was undertaken to investigate the reasons behind the water borne epidemic at Tissar Village Tehsil Shigar Baltistan. Some physical, biological and chemical parameters were examined from source, nallah, and water distribution network. Total seven sampling sites were selected for monitoring.Study was conducted during the second week of August2013 and water samples were taken using random sampling technique, from source, nallah, different mohallah (Prono and Thamocho) kohl locations andfrom different community taps. Water temperature, pH, electrical conductivity (EC), Turbidityof each water sample was measured using portable testing meters and personal sense of observations for specific parameters like color, odor and taste. Microbiological analysis was performed in situ using Waqtech Portable Water Testing Kit through Membrane Filtration (MF) technique recommended by WHO to analyze water samples to detect E. Coli as indicator of pathogenic microorganisms in drinking water samples. However chemical analyses (Nitrate and Nitrite) of samples were carried out by using HannaPhotometer. The test results of all the seven collected samples revealed that water is exceedingly contaminated with highest number of colonies (E. coli) up to 217 at Prono Mohallah Kuhl location 1 and not fit for drinking purposes according to WHO guidelines except the sample collected from the main nallah. Samples from Prono and Thamocho are also chemically contaminated with nitrates (65mg/l) thus exceeding the prescribedlimits of WHO guidelines. Temperature ranged from 12°C to 20 °C, pH value recorded was 7-8, EC value was between 94.9-98.7, turbidity fluctuates between <40- <60 NTUs, color was cloudy while taste and odor were not objectionable. Sanitary inspection of channels and storage vessels showed that the water sources are highly contaminated with human and animal feaces. The main reason behind this contamination is traditional Chaksa and poor hygienic practices of the community.

An Assessment of Physio-chemical and Microbiological Parameters of water from Hunza and Gilgit River Gilgit-Baltistan Pakistan

Ajaz Ali, Zakir Hussain, Zarmast Khan, Azfar Hussain

  • Abstract

    This study focused upon the determination of physio-chemical and biological assessment of two major rivers Gilgit and Hunza, Gilgit-Baltistan, Pakistan. The data was collected during the mid of October 2014.Fourteen different samples were collected at different stations of both rivers. On the basis of sample collection, the whole of these two rivers were divided into seven different stratums. Seven samples were collected from river Hunza and the remaining seven samples were taken from Gilgit River. The physio-chemical and biological parameters which were taken to analyze water quality were pH, Total Dissolved Solid, Temperature,Turbidity, Electrical Conductivity, Salinity, Color, Odor and E-Coli bacteria. Some parameters were analyzed and assessed on the spot such as Temperature, Turbidity,Electrical Conductivity, Salinity and Total Dissolved Solid with the help of multivariate parameters. Few chemical and microbial parameters like turbidity, pH and E-Coli were tested in Gilgit-Baltistan Environmental Protection Agency laboratory. The data showed variation of the investigated parameters in Hunza River water samples as pH 8.200-8.500, TDS 14.300-32.701 ,Turbidity 107.90-173.00,pH8.2-8.5 Electrical Conductivity 28.100-34.900, Hardness 0.8300-1.9100,EColi 0.000 and temperature level from 8.200-16.100.In Gilgit River the range of these parameters were pH 8.300-8.500, TDS 14.900-15.800, Turbidity 5.87-7.900, Electrical Conductivity 21.500-23.300, Hardness 0.8700-0.9200, E. Coli0.000-3.000 and temperature level from 14.100-16.100.The major causes of contamination of water in both rivers were identified as due to household wastes and garbage.

Industrial Wastewater Treatment by Bioremediation Method

Trupti D. Phapal, Bhagyashree K. Magdum and Anil C. Ranveer

  • Abstract

    Bioremediation is the technique which is economical and energy consuming, and thus is prevailing all over the world .Here Main aim to treat ‘Sulphide’ from the waste water of the Dairy Industry. In the present study strains of Thiobacillus sp were isolated from aerobic sludge of distillery and dairy effluent treatment plant using standard methods of isolation and enrichment. Experiments were conducted using isolated cultures with gelatine capsule in batch bioreactor with initial Sulphide concentration 1320 mg/l. The effect of initial Sulphide concentration on the activity of isolated Thiobacillus sp was studied. The removal efficiency of COD of the waste water from the “Schreiber Dynamix Dairies” is observed as 99.17%. Different solids tests were carried out their removal efficiency were as follows: TSS-80.70%, TDS-75.16%, Sulphide-80.36% and PH-7.32.This project not only studies the treatment of the waste water by Bioremediation but treatment of waste water with the help of Biocapsule. Role of Biocapsule in the bioremediation is to make this process user friendly and easy to implement .Thiobacillus is immobilized in the on the Agar-Agar gel, which acts as a porous media or a residence for the bacteria, which again if fortified in the dissolvable plastic polymer which forms the cover of the capsule.