Effect of Ozonation Pretreatment on Photo-Fenton Process for Landfill Leachate
- June 12, 2018
- Posted by: RSIS
- Category: Chemistry
International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue V, May 2018 | ISSN 2321–2705
Effect of Ozonation Pretreatment on Photo-Fenton Process for Landfill Leachate
Sameena Salim, J.Thirumal
Anna University Regional Campus, Tirunelveli, Tamil Nadu, India
Abstract:-In this study the landfill leachate was treated with Photo-Fenton process with Ozonation as pre treatment. The leachate generated from landfill is a highly polluted wastewater containing organic pollutants, inorganic salts, nitrogen (N) and many other contaminants. The efficiency of the processes were analyzed by observing different parameters such as Chemical Oxigen demand (COD),Biological Oxygen demand(BOD), Total Solids(TS), Total Suspended solids(TSS), Total dissolved solids(TDS), Nitrogen, Turbidity and Alkalinity.
I. INTRODUCTION
Waste is any substance which is discarded after primary use or it is worthless, defective and no use. The wastes can be classified into Household waste, Municipal waste (MSW),Commercial and non-hazardous industrial wastes, Hazardous (toxic) industrial wastes, Construction and demolition (C&D) waste, Health care wastes (Eg. hospitals, medical research facilities), Human and animal wastes. Generation of MSW has been increasing day by day.
Municipal solid waste disposal is the most common practice in developed and developing countries (Yang Denget al.,2006) .Land filling is an alternative for Conventional incineration process. Incineration may may cause serious pollution problems due to releasing toxic compounds such as polychlorinated dibenzodioxins and polychlorinated dibenzofurans.
The dumping yard for MSW generated in Tirunelveli city is Ramayanpatti landfill. Percolation of rainfall through landfill sites in combination with the decomposition of the solid wastes by simultaneous and interrelated biological, chemical and physical changes lead to the generation of a highly contaminated liquid called “leachate”. The sanitary landfill leachate is a dark liquid, of highly variable composition. The composition of landfill leachate mainly depending upon landfill age the nature of the disposed wastes, climate, hydrological factors, rainfall patterns. The leachate generated from landfill is a highly polluted wastewater containing organic pollutants, inorganic salts, nitrogen (N) and many other contaminants. Ammonia has been considered as the most significant component in the leachate over the long term because Sometimes Leachate may contains Ammonia in concentrations up to 2000mg/L, which may be toxic to biological processes for leachate treatment (Kjeldsen et al., 2002).
