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DOI: 10.5593/SGEM2016/HB33/S02.047

WASTEWATER TREATMENT IN LVIV SOLID WASTE LANDFILL

V. Pohrebennyk, O. Mitryasova, I. Podolchak, R. Politylo, A. Kochanek
Friday 11 November 2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, SGEM Vienna GREEN Extended Scientific Sessions, www.sgemviennagreen.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-81-0 / ISSN 1314-2704, 2 - 5 November, 2016, Book 3 Vol. 3, 365-372pp, DOI: 10.5593/SGEM2016/HB33/S02.047

ABSTRACT

Solid waste landfills are intended for isolation and neutralization of solid waste and they should ensure sanitary and epidemiological safeties of the population. However, the most of solid waste landfills in Ukraine do not meet sanitary standards. As a result, there are a large number of ecological problems such as pollution of groundwater by the filtrate of these landfills and the migration of polluting components together with an underground stream. The most vulnerable components of the environment are groundwater and surface water. Processes, which are occurred in landfills and dumps in different periods of existence, are poorly understood and are great interest for research.
The aim of the work is evaluating the efficiency of wastewater treatment in Lviv solid waste landfill.
The purification technology of filtrate on station of physical and chemical purification has 5 main parts of treatment. The quality of wastewater treatment was evaluated by such parameters as color, clarity, odor, suspended solids, salt content, BOD5, COD, chlorides, ammonia nitrogen, pH. For the analysis of water chemical, physico-chemical and physical methods were used.
The value of indicators of water quality were decreased significantly after. The suspended matter was decreased in 3 times (exceeding the rate of contamination maximum permissible concentration in 1.24 times), dry residue in 1.2 times (exceeding the rate of contamination maximum permissible concentration in 1.5 times), ammonium nitrogen in 15.4 times (exceeding the rate of contamination maximum permissible concentration in 6.2 times), nitrates in 1,7 times, nitrites in 1.4 times, sulphates in 2 times, chlorides in 6.7 times (exceeding the rate of contamination maximum permissible concentration in 1.4 times), phosphates in 1.2 times (exceeding the rate of contamination maximum permissible concentration in 8.5 times), total iron in 1.1 times (exceeding the rate of contamination maximum permissible concentration in 1.1 times), COD in 15 times (exceeding the rate of contamination maximum permissible concentration in 8.5 times) and BOD5 in 11.9 times (exceeding the rate of contamination maximum permissible concentration in 0.18 times). Thus, treatment plant of Lviv solid waste landfill do not provide satisfactory wastewater treatment efficiency.

Keywords: landfill, pollution, environment, wastewater, purification

PAPER DOI: 10.5593/SGEM2016/HB33/S02.047, WASTEWATER TREATMENT IN LVIV SOLID WASTE LANDFILL

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