International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 06 Issue: 05 | May 2019
p-ISSN: 2395-0072
www.irjet.net
Neutralization of Leachate by Low Cost Materials Mahadevappa N Honnali1, Pramod U Hallikeri2, Swaraj G D3, Vinayak S Chavatagi4, Avinash Patel K L5, D S Maganur6 4Mr.
Avinash Patel K L Asst. Professor, Dept. of Civil Engineering, Sri Taralabalu Jagadguru Institute of Technology, Ranebennur, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------Abstract - Landfill leachate are defined as those aqueous streams generated as a consequence of rain water percolation through wastes, biochemical processes in waste’s cells and the inherent water content of wastes themselves. The generation of municipal solid waste grows exponentially in urban society as a consequence of population growth, concentration of population in urban centers and new patterns of consumption. One of the main problems generated by this common practice is the production of leachate. It is a very complex wastewater containing different heavy metals, organic and inorganic compounds, some of them refractory and toxic that possesses colour and odour.
leachate. Among the AOPs reviewed, ozone-based oxidation and electrochemical oxidation are the most frequently studied and widely applied methods for the treatment of landfill leachate. Both techniques can achieve about 15∼95% of COD removal with COD concentration ranging from 600 to 26,000mg/L. In particular, electrochemical process can improve BOD/COD ratio to close 0.5. Electrochemical process seems to be the best method because the process is technologically simple. From the economic point of view, using electrochemical process as the pretreatment of biological treatment can lower the cost and improve the treatment efficiency. F.Malpei et al, (2005) has investigated on some leachate treatment process like Nitrification, Membrane flux and Denitrification. During the first part of the experimentation, nitrification was strongly affected by high operating temperatures and lack of pH control. Proper temperature and pH control are key factors for optimal operation of the process. Steady and reliable TKN removal efficiencies as high as 98% were achieved for several weeks. Almost complete TKN oxidation to nitrate was achieved at loading rates up to 0.06 kg.
KeyWords: leatchate1, biological oxygen demond2, Cemical oxygen demond3, TDS4, Alkalinity5, Acidity6 1. INTRODUCTION The municipal landfill leachate has been one of the major problems for environment. In the operation, leachate treatment is a very difficult and expensive process. Although, young leachate can be treated easily by biological treatment, COD removal efficiency are usually low the leachate that arises from landfill sites contains components which preclude its direct discharge onto land or into rivers, or, in some instances, even into a sewage treatment works.
Anna M et al, (1998) investigated that The electrochemical oxidation of landfill leachate was studied under different experimental conditions to investigate the influence of operative parameters on efficiencies of removal of COD and ammonium nitrogen. Preliminary experiments were performed in order to verify the influence of mass transfer on the process kinetics: no variation in the reaction trend was observed at different flow rates, showing that mass transfer of the reactant from the solution bulk to the electrode surface did not constitute a limiting step.
1.1 Objective To study the characteristics of leachate. To know the impact of leachate on surrounding water sources. To determine an economical neutralization of leachate.
solution
2.1 LEATCHATE CHARACTERSTIC
for
To determine impact of electrolyte process on leachate 2. LITERATURE SURVEY Wei Li et al, (2010) reviewed on the application of advanced oxidation processes (AOPs) including ozone-based oxidation, Fenton oxidation, electrochemical oxidation, wet air oxidation, and ultrasound oxidation to treatment of land-fill
© 2019, IRJET
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Impact Factor value: 7.211
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SL NO
Constituent
New land fill “less than 2 year
Mature land “ greater than 10 year”
1.
Ph
4.5-7.5
6.5-7.5
2.
COD
3000-6000
100-500
3.
BOD
2000-3000
100-200
4.
ALKALINITY
1000-10000
200-1000
5.
TSS
200-2000
100-400
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