Efficiency of different coagulants in pretreatment of composting plant leachate
Paper Details
Efficiency of different coagulants in pretreatment of composting plant leachate
Abstract
Leachate is an important pollution factor resulting from composting plant. The method applied to treat leachate is highly dependent on the characteristics of the leachate. One of the most common and simplest methods is using coagulation process. This study was aimed to compare the efficiencies of different coagulants which include ferrous sulfate, ferric chloride, poly ferric sulfate, alum and poly aluminum chloride along with two anionic and cationic commercial co-coagulants (K350CF and LT25) in removing chemical oxygen demand (COD) and total suspended solid (TSS) from the leachate generated in a composting plant. Leachate samples were collected from the Isfahan composting leachate´s collection ponds. In this study, jar-test experiments were carried out to determine the optimum conditions for the removal of COD and TSS, effective dosage, optimum pH and the most convenient coagulant. According to the results, poly ferric sulfate resulted in the highest COD and TSS removal at pH= 11, with 2 g /L of coagulant. At this experimental condition, COD and TSS removal efficiencies were obtained 49% and 51% respectively. Results also showed that using K350CF and LT25 along with coagulants can improve COD and TSS removal and PFS along with K350CF had the highest removal efficiency. Based on obtained results, it may be stated that Coagulation-flocculation can be used as a simple and efficient pretreatment in which composting leachate is processed for better and more convenient treatments during the following stages.
Abdul JM, Vigneswaran S, Shon HK, Nathaporn A, Kandasamy J. 2009. Comparison of granular activated carbon bio-sorption and advanced oxidation processes in the treatment of leachate effluent. Korean Journal of Chemical Engineering 26(3), 7224-7230.
Al-Hamadani YAJ, Yusoff MS, Umar M, Bashir MJK, Adlan MN. 2011. Application of psyllium husk as coagulant and coagulant aid in semi-aerobic landfill leachate treatment. Journal of Hazardous Materials 190 (1), 582-587.
APHA A. 1998. Standard Methods for the Examination of Water and Wastewater 20th Edition. APHA publishing,2540D.
Hermosilla D, Cortijo M, Huang CP. 2009. Optimizing the treatment of landfill leachate by conventional Fenton and photo-Fenton processes. Science of the Total Environment 407(11), 3473-3481.
Ince M, Senturk E, Onkal Engin G, Keskinler B. 2010. Further treatment of landfill leachate by nanofiltration and microfiltration–PAC hybrid process. Desalination 255 (1), 52-60.
Kulikowska D, Klimiuk E. 2008. The effect of landfill age on municipal leachate composition. Bioresource Technology 99(13), 5981-5985.
Kurniawan TA, Lo WH, Chan G. 2006. Degradation of recalcitrant compounds from stabilized landfill leachate using a combination of ozone-GAC adsorption treatment. Journal of Hazardous Materials 137(1), 443-455.
Kurniawan TA, Lo WH, Chan G. 2006. Physico-chemical treatments for removal of recalcitrant contaminants from landfill leachate. Journal of Hazardous Materials 129(1), 80-100.
Maleki A, Zazouli MA, Izanloo H, Rezaee R. 2009. Composting Plant Leachate Treatment by Coagulation-Flocculation Process. American-Eurasian Journal of Agricultural & Environmental Sciences 5 (5), 638-643.
Monje-Ramirez I, Velásquez M. 2004. Removal and transformation of recalcitrant organic matter from stabilized saline landfill leachates by coagulation–ozonation coupling processes. Water Research 38(9), 2359-2367.
Ngoc UN, Schnitzer H. 2009. Sustainable solutions for solid waste management in Southeast Asian countries. Waste Management 29(6), 1982-1995.
Ozturk I, Altinbas M, Koyuncu I, Arikan O, Gomec-Yangin C. 2003. Advanced physico-chemical treatment experiences on young municipal landfill leachates. Waste Management 23(5), 441-446.
Renou S, Givaudan J, Poulain S, Dirassouyan F, Moulin P. 2008. Landfill leachate treatment: Review and opportunity. Journal of Hazardous Materials 150(3), 468-493.
Samadi MT, Saghi MH, Rahmani A, Hasanvand J, Rahimi S, Shirzad M. 2010. Hamadan Landfill Leachate Treatment by Coagulation-Flocculation Process. Iranian Journal of Environmental Health Science & Engineering 7(3), 253-258.
Sletten RS, Benjamin MM, Horng JJ, Ferguson JF. 1995. Physical–chemical treatment of landfill leachate for metals removal. Water Research 29(10), 2376-2386.
Stephenson RJ, Duff SJB. 1996. Coagulation and precipitation of a mechanical pulping effluent: removal of carbon, colour and turbidity. Water Research 30(4), 781-792.
Tatsi A, Zouboulis A, Matis K, Samaras P. 2003. Coagulation–flocculation pretreatment of sanitary landfill leachates. Chemosphere 53(7), 737-744.
Uygur A, Kargi F. (2004). Biological nutrient removal from pre- treated landfill leachate in a sequencing batch reactor. Journal of Environmental Management 71, 9-14.
Wang S, Wu X, Wang Y, Li Q, Tao M. 2008. Removal of organic matter and ammonia nitrogen from landfill leachate by ultrasound. Ultrasonics Sonochemistry 15(6), 933-937.
Wang X, Chen S, Gu X, Wang K. 2009. Pilot study on the advanced treatment of landfill leachate using a combined coagulation, fenton oxidation and biological aerated filter process. Waste Management 29(4), 1354-1358.
Yang Z, Zhou S. 2008. The biological treatment of landfill leachate using a simultaneous aerobic and anaerobic (SAA) bio-reactor system. Chemosphere 72(11), 1751-1756.
Zainol NA, Aziz HA, Ibrahim N. 2013. Treatment of Kulim and Kuala Sepetang Landfills Leachates in Malaysia using Poly Aluminium Chloride (PAC). Research Journal of Chemical Sciences 3(3), 52-57.
Zainol NA, Aziz HA, Yusoff MS, Umar M. 2011. The use of polyaluminum chloride for the treatment of landfill leachate via coagulation and flocculation processes. Research Journal of Chemical Sciences 1(3), 35-39
Zazoli M, Parvaresh A, Movahedian H. 2000. Survey of heavy metals in Isfahan landfill leacheat and methods of decrease its, Proceeding of the 3th National Congress of Environmental Health, Tehran, Iran.
Amir Hossein Mahvi, Ghasem Kiani feizabadi, Mohammad Hadi Dehghani, Sajad Mazloomi (2015), Efficiency of different coagulants in pretreatment of composting plant leachate; JBES, V6, N6, June, P21-28
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