Changes of Ec and TSS at Different Stages of Biological Wastewater Treatment with an Effort to Leachate Filterability (Case Study: Composting Factory in the West of Golestan Province)

Hojatollah Rashidi (), Sohaila Ebrahimi2 () and Parvin Farshchi ()
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Hojatollah Rashidi: M. Sc student of environmental pollutants engineering, Islamic azad university, Science and research branch, and Expert of research and training in Waste Management Organization in Golestan Province, Iran
Sohaila Ebrahimi2: Assistant Professor, Gorgan University of Agricultural Sciences and Natural Resources, Dept of soil science, Iran
Parvin Farshchi: Assistant Professor, Department of Environmental Pollution, Islamic Azad University, Tehran’s Science and Research Branch, Iran

International Journal of Resistive Economics, 2014, vol. 2, issue 1, 83-93

Abstract: Leachate is the liquid that passes through the garbage and leaks out of solid waste containing soluble substances, suspended particles or derived from the original waste. Hence, the formation of leachate management is a key process to remove potential contamination of underground water resources. So, the objective of this study was to pay special attention not only to a correct strategy but also to find the most appropriate conditions for biological activities in different seasons that predict the refinery efficiency in different seasons and its effectiveness for reducing climate factors such as temperature and amend via continuous and regular monitoring of the two parameters of EC and TSS and emphasizing the leachate filterability. To do so, this study carried out sampling in five stations at Composting Factory of Aq-qala over 1258 days with 135 times. The changes of EC and TSS between 2010 and 2014 have been analyzed. The average concentrations of EC, removal efficiency and TSS was 32.45, 67.7% and 3611.4 mg/l, 97.5% (high efficiency and optimum) respectively in crude leachate and 10.47 ms/cm, and 89.8 mg/l respectively in final leachate which determined high efficiency and optimal performance. Most importantly, refinery was tolerated at EC= 61.12 ms/cm (high EC) and it worked without problem. They were observed maximum efficiency, reducing EC and TSS in anaerobic unit and the best result in the first half of Spring and Autumn in the final output (EC= 7.1, TSS=10), and the lowest efficiency was achieved in the mid of Summer (EC=18.3) and late winter (TSS=200), which was related to the temperature and bacterial population.

Keywords: Aeration; Anaerobic; Composting Factory of Aghghala; Crude Leachate; EC; TSS (search for similar items in EconPapers)
Date: 2014
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