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G. Manjula ¹, P. N. Magudeswaran ²

Affiliations
1 Department Civil Engineering, VLB Janakiammal College of Engineering & Technology, Coimbatore-641 042, T. N., IN
2 Department of Chemistry, VLB Janakiammal College of Engineering & Technology, Coimbatore- 641 042, T. N., IN

Abstract

In India, the dairy industry contribute a significant percentage of the total quantity of waste generated. Since, milk processing consumes large amount of water, the volume of effluent discharged from the industry is very high. It increases level of BOD and depletes dissolved oxygen of the receiving waters. In this paper various water quality characteristics such as pH, electrical conductivity, COD and TDS of the effluent are studied before and after the application of ischolar_main zone treatment system (RZTS), and it is found that the treatment is very effective.

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G. Manjula ¹, P. N. Magudeswaran ²

Affiliations
1 Department of Civil Engineering, VLB Janakiammal College of Engineering and Technology, Kovaipudur, Coimabatore-641 042, Tamil Nadu, IN
2 Department of Chemistry, VLB Janakiammal College of Engineering and Technology, Kovaipudur, Coimabatore-641 042, Tamil Nadu, IN

Abstract

An experimental study was conducted to determine the efficiency of vermicomposting process of various types of organic wastes such as vegetable, fruit and flower wastes. Various characteristics like pH, electrical conductivity, moisture content, total solids, volatile solids and ash content were monitored continuously to ascertain the stability of the compost. The vermicomposting process for flower waste and fruit-vegetable waste mixture was compared. Both the processes were found to be effective with significant nutrient enrichment.

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K. T. Shivaram ¹, S. Kiran ², G. Manjula ³

Affiliations
1 Department of Mathematics, Dayananda Sagar College of Engineering, Bangalore - 560078, Karnataka, IN
2 Department of Mathematics, Sapthagiri College of Engineering, Bangalore - 560057, Karnataka, IN
3 Department of Mathematics, Government P.U. College, Thippasandra, Ramanagar - 562159, Karnataka, IN

Abstract

Objectives: In this paper, the effect of surface tension gradient on the transport phenomenon and temperature differences within a power-law liquid film on an unsteady horizontal stretching sheet with heat source is been investigated. Method: The flow of a fluid film and the heat transfer from the subsequent stretching surface is been found by applying similarity transformation. The numerical computation of the problem is done with aid of Maple. The system of governing non-linear partial differential equation is converted to a set of nonlinear ordinary differential equation using local similarity transformations, then solved numerically applying the Runge Kutta Felhberg-45 method. The effect of power law index n, Prandtl number Pr, the unsteadiness parameter S, Space dependent heat source parameter α₁, temperature dependent heat source parameter β₁, and film thickness parameter β(=η) on heat transfer and flow are studied and graphically presented. And it was found that the surface tension gradient and nonuniform heating source have tremendous impact on controlling the rate of convective heat transfer near the boundary layer region.

Keywords

Maple, Power Law Fluids, Range Kutta Felhberg-45,Stretching Sheet, Thin Film.

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