International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
Treatability Studies On Municipal Solid Waste Landfill Leachate Using Up-Flow Reactors Shreyas A.J1, Dr. B.T Suresh Babu2 PG student, Department of Civil Engineering, Angadi Institute of Technology and Management, Belagavi-590009, Karnataka, India. 2. Professor, Dean, R&D, Department of Civil Engineering, Angadi Institute of Technology and Management, Belagavi-590009, Karnataka, India. ---------------------------------------------------------------------***--------------------------------------------------------------------1.
Abstract - The main objective of the present paper was to exploit the treatment of municipal solid waste Landfill Leachate. This paper present the experimental results obtained on the treatment of landfill by using waste adsorbent media. The present study mainly focused on the treatment of municipal solid waste landfill Leachate by using up-flow reactors with using waste laterite stones and waste brick bats. Finally comparison of treatment efficiency is done by using both adsorbent media. The present study investigated and concluded, in brick bats removal efficiency is less and laterite removal efficiency is very good. It can be concluded that the removal efficiency of treatment of landfill Leachate mainly depends on the surface area of the adsorbent media in the upflow reactors. Key Words: Treatment of landfill leachate, up-flow reactors, waste Laterite stones, Waste brick bats, Adsorbent media, Removal efficiency.
1. INTRODUCTION Urban cities are a link to connect for a future threat to the environment because of the production of increasing complexity and quantity of wastes. About 1.7-1.9 billion metric tons of municipal solid waste is generated worldwide. In many cases, municipalities cannot handle the produced wastes and municipal wastes are not well managed in developing countries, about 50% of collected waste is often disposed uncontrolled land filling and wastes collection is lower than 70% in low-income countries. About 15% is processed through un safe and informed cycling establishing and advanced improved facilities for collection recycling, treatment and disposal for municipal solid waste management will be very costly. For example establishment of building and operating sanitary landfill and incineration plants needs huge investments and huge maintenance and operation costs. Furthermore, it is difficult to find a suitable place or location for waste treatment facilities due to attitude among the countries therefore urban has to be encouraged to pursue the paths of reduce, reuse, and recycles instead of waste reduction, waste prevention and waste recycling due to solid waste creates nuisance, odour. It attracts mosquitoes, flies, street animals etc., which is a route to transmit various diseases. Š 2017, IRJET
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Percolation of surface water and rainfall through the landfill and leaches out organic and inorganic constituents from the disposed solid waste is termed as Leachate. The production of Leachate states at early stages of landfill and it continuous to remain several decades even after the closure of landfill. Mainly landfill Leachate is generated when water is in filtered through the solid waste landfill and this facilitates for transfer of contaminants from solid phase to liquid phase. Characteristics of Leachate usually varies depending upon the amount of percolation and precipitation, the biological and chemical process, quality and quantity of solid waste and age of landfill . Leachate contains both suspended and dissolved materials. Usually landfill receives mixture of commercial, municipal and industrial waste but excludes the highly concentrated chemical waste. Landfill Leachate is a liquid which has four groups of contaminants such as xenobiotic organic, heavy metals, inorganic macro components, and dissolved organic matter. The physical appearance of Leachate is dark brownish red in colour and the smell is acidic and offensive. Today solid waste generation and its proper management in a society is becoming a major problem and is, a burning issue on public health and surrounding environment, in both urban and rural areas. Improper management of municipal solid waste causes hazards to inhabitants. In-adequate knowledge and unscientific disposal methods into the open dumps creates severe problem. Proper collection, transportation, and safe disposal of solid waste is very important in Indian cities. It is the main responsibilities of municipal and governmental authorities. Indian cities generate on an average of 100-500 gms/capita/day of solid waste and of which only 60-80% of waste is collected on daily basis and rest of the waste is left unknowingly to decay on streets, roads, drains, which attracts flies, mosquitoes, street animals etc.., and causing odour nuisance, thereby transmitting of various diseases. On the other hand the natural run-off and infiltration of rain water into the solid waste landfill area generates liquid waste called Leachate. This contains high dissolved organic and inorganic substances with reddish brown colour. Since Leachate is a complex and toxic effluent, it should be handled properly in the process of collection, treatment, and safe disposal. Otherwise it creates a serious problem on
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