International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 09 | Sep 2022
p-ISSN: 2395-0072
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A Study on Effect of Treated effluent Irrigation on Agricultural and Geotechnical Properties of Soil Bhagyashree H N1 and Dr. Lokeshappa B2 1PG
Student, Dept of Civil Engineering, UBDT College of Engineering, Karnataka, India Professor, Dept of Civil Engineering, UBDT College of Engineering, Karnataka, India ---------------------------------------------------------------------***--------------------------------------------------------------------2. MATERIALS AND METHODOLOGY Abstract: The project work was carried out to investigate 2Associate
the effect of treated effluent irrigation on soil properties near the sewage treatment plant. The quality of treated waste water was studied to evaluate the performance of treatment units and the suitability of treated waste water for irrigation. The analyzed results of soil showed that pH, Electric conductivity, BOD, Available Nitrogen, Phosphorous and Potassium were affected due to the usage of treated effluent for irrigation. But there is no noticeable effect on geotechnical properties of the soil. The long-term usage of treated effluent for agricultural purpose caused soil sickness, accumulation of organic matter and various nutrients in the soil and thereby crop yield decreases.
2.1 Materials To carry out the experimentations required for the project, various glass wares, reagents and some instruments are used in the laboratory. 2.2 Methodology Step 1 – Selection of site. The site was selected near the Municipal Sewage Treatment Plant, Shivanagar, Davanagere where treated effluent is used for irrigation. Step 2 – Collection of Sample. The disposed treated effluent was collected by using polythene water bottles and soil was collected by using core cutter method. Three samples of treated effluent and soil were collected at three different distances from the Sewage Treatment plant by considering site near to sewage treatment plant as site 1, intermediate site as site 2 and far site as site 3.
Key Words: Treated effluent, Sewage treatment plant, Soil, Irrigation
1.INTRODUCTION Water is a basic need to lead a healthy and standard life. Nowadays, water scarcity has become major problem in all over the world especially in dry regions. The practice of lowquality water resources is advised as a solution for agricultural irrigation, which involves the largest global consumption of water. Environmental conservation and water pollution control is important to maintain living conditions for the succeeding years. Many researchers had stated that using treated wastewater effluent for farming as an alternative water resource due to rising scarcity of fresh water [1]. The amount of liquid and solid waste is increasing enormously with time and in parallel with raising industrial production and living standards. Disposal of industrial and domestic wastes into the environment will affect the both ground water and soil quality. Streams and soil have been utilized for various purposes, including waste disposal. Our incautious waste dumping has affected these inevitable resources. Structure of soil is very important factor for soil function in supporting plant growth, animal life and to maintain quality environment. Irrigation with treated municipal wastewater will change the properties of soil which depends on the various parameters present in the applied wastewater. The improper management of wastewater may have adverse impacts on soil and crops in which it affects the human health and environment [2]. Some studies states that the main parameters of the applied wastewater will impact on soil pH, NPK concentration and other properties of soil.
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Step 3 – Conduction of experiments. Various parameters of soil and treated effluent were analyzed by using standard methods of experimentation in the specified laboratory. For Treated effluent parameters such as pH, turbidity, Color, Total dissolved solids, Electric conductivity, BOD and COD were analyzed. For Soil pH, Electric conductivity, NPK concentration, Specific gravity, Dry unit weight, Porosity, Void ratio, Swell Index and Permeability were analyzed. Step 4 – Analysis of results and conclusion.
3. RESULTS AND DISCUSSION The results obtained from the project work are discussed in this chapter by including various sections and sub sections along with the graphs. 3.1 Analyzed Characteristics of Disposed Treated Effluent The parameters of three collected disposed treated effluent samples were analyzed and obtained results are tabulated in the below Table 3.1. Some parameters i.e., EC, Color, Turbidity and BOD are varied by following proper trend that is in declining in the values as the effluent flows and other
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