Tag Archives: Industrial Effluent

Impact of Industrial Effluents on Soil Quality of Sudan Savanna Alfisols in Semi-arid Tropical Zone of Nigeria (Published)

With increase in industrialization, threat of industrial pollution has been troubling the human world for many years causing environmental pollution including agricultural soils, which are adversely affected when untreated or partially treated industrial effluents are applied on them as irrigation amendments. The aim of this study was to evaluate the effect of industrial effluents on the quality of soils irrigated with the effluents in Sharada industrial area by measuring different physico-chemical quality parameters. The soil samples were collected from three different phases of the industrial area and analyzed using standard laboratory procedures. Findings indicated that application of industrial effluents on soil caused changes in the physico-chemical profile of the soil with parameters like pH, organic carbon (OC) , nitrogen (N), phosphorus (P), exchangeable sodium (Na) and potassium (K) recording mean values ranging from 6.6-7.2, 1.0-2.2%, 0.1-0.2%, 9.0- 14.0mg/Kg, 0.1-0.5Cmol/Kg and 0.6-0.7Cmol/Kg respectively. These values were different from the normal range of fertile and qualitative soil according to standards, and no significant differences were recorded among the sampling sites (P>0.05). Furthermore, the study revealed that the soil texture was sandy loam and loamy sand, while the cation exchange capacity (CEC), electrical conductivity (EC) exchangeable calcium (Ca) and magnesium (Mg) recorded mean values in the range of 4.6-6.8Cmol/Kg, 0.3-1.0dS/m, 1.6-3.7Cmol/Kg and 1.0-2.0Cmol/Kg in that order with significant variation among the sampling sites (P<0.05) indicating the moderate impact of industrial effluents on the soil quality. Overall, the research findings indicated that Sharada industrial effluents have impacted relatively on the soil quality of the surrounding soils in the area and their application should be discontinued for irrigation unless with careful monitoring and guarded improvement in the quality of the industrial wastewater as well as application of inorganic and organic amendments that will improve the fertility and quality of the soils of the study area.

Keywords: : Irrigation, Environment, Industrial Effluent, Pollution, Soil Quality

Effects of Industrial Effluent on the Environment Using Allium Cepa and Zea Mays As Bioindicators (Published)

Indiscriminate handling and disposal of industrial effluents into the environment represents one of the major sources of environmental pollution which invariably affects the health of man, plants and animals. The toxic effect of effluent from a candy-producing industry was investigated in terms of root growth inhibition and overall phytotoxicity using bio-indicator plants; Allium cepa and Zea mays. The presence and concentrations of some metals of environmental concern as well as Polycyclic Aromatic Hydrocarbons in the effluent were also determined. The Allium cepa and Zea mays tests were carried out at concentrations of 1, 5,10,25,50 and 100% of the untreated effluent. There was statistical significant (P<0.05) inhibition of root growth in both plants, the shoot length measurement also showed significant difference (P<0.05) at the different concentrations of the effluent as compared with the control. Morphological abnormalities were observed in the roots of the bio-indicator plants, it is therefore recommended that industrial effluents be treated before being disposed into the environment.  

Keywords: Allium Cepa, Bio-Indicators, Environment, Industrial Effluent, Phytotoxicity, Zea Mays

Effects of Industrial Effluent on the Environment Using Allium Cepa and Zea Mays as Bioindicators (Published)

Indiscriminate handling and disposal of industrial effluents into the environment represents one of the major sources of environmental pollution which invariably affects the health of man, plants and animals. The toxic effect of effluent from a candy-producing industry was investigated in terms of root growth inhibition and overall phytotoxicity using bio-indicator plants; Allium cepa and Zea mays. The presence and concentrations of some metals of environmental concern as well as Polycyclic Aromatic Hydrocarbons in the effluent were also determined. The Allium cepa and Zea mays tests were carried out at concentrations of 1, 5,10,25,50 and 100% of the untreated effluent. There was statistical significant (P<0.05) inhibition of root growth in both plants, the shoot length measurement also showed significant difference (P<0.05) at the different concentrations of the effluent as compared with the control. Morphological abnormalities were observed in the roots of the bio-indicator plants, it is therefore recommended that industrial effluents be treated before being disposed into the environment.  

Keywords: Allium Cepa, Bio-Indicators, Environment, Industrial Effluent, Phytotoxicity, Zea Mays

Determination of Volatile Organic Compounds in Petroleum Companies Using Liquid-Liquid Extraction (Published)

The recovery study of volatile organic compounds from effluents of petroleum companies in Ilorin East Local Government Area and its effect on the environmental matrixsurface water, soil, sediment and plant were sampled. The liquid-liquid extraction procedure of two organic solvent (Hexane: Dichloromethane) (50 ml: 50ml) was employed to remove volatile organic compounds from matrix so as to obtain a good recovery and repeatability at 0.01μg/l, 0.02μg/l and 0.05μg/l respectively. Sediment, soil and leaf of plant samples (10 g) were dried and soaked in hexane prior to extraction procedures, after which it was totalled into a 2 ml vial for Gas chromatography analysis. At 0.05μg/l obtained a percentage mean recovery and relative standard deviation for effluent water (82.7±2.5 – 95.0 ±1.0 %), surface water (62.3±2.5 – 97.7±4.2 %), soil (72.7±2.1 – 96.3±3.8 %), sediment (85.7±3.2 – 91.7±2.5 % ) and plant (79.3±2.5 – 99.3±2.0 %). Correlation analysis was carried out to establish a relationship between effluent and other matrix, at 0.02 μg/l percentage mean recovery effluent has effect on the sediment at that concentration. The remaining concentration levels did not show any significant relationship with the effluent variables.

Keywords: Industrial Effluent, Recovery Studies, VOCs, Volatile Organic Compounds