TY - JOUR

T1 - Integrated Assessment of Groundwater Pollution from the Landfill of Sewage Sludge

AU - Dregulo, Andrey Mikhailovich

AU - Bobylev, Nikolai Gennadievich

N1 - Funding Information: nancial support of research work “Systematization, identification and methods of assessment of objects of past environmental damage”, state registration number 0241–2014–0006, Project of the Russian Foundation for Basic Research number 20–514–22001, Project of the Russian Foundation for Basic Research number 18–55–76003. Publisher Copyright: © 2020. The American Society of Hematology. All Rights Reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/1/1

Y1 - 2021/1/1

N2 - The purpose of this study was to assess the groundwater contamination from a sewage sludge landfill. The analysis‎was carried out in 2017 in accordance with the requirements of the national legislation for monitoring landfills‎and priority pollutants. The samples of groundwater from the landfill were taken from 25 observation wells, from‎depths of 45–60 m. The status and dynamics of changes in the landfill groundwater quality were estimated according‎to the data from the groundwater observation wells of the city observation network with regard to the chemical‎composition of groundwater and national standards of groundwater quality. The forecast estimates of a low level of‎pollutants entering groundwater through the soils characterized by low filtration properties were not justified. The‎concentration of heavy metals in groundwater was within the following range: Fe > Mn?> Zn > Al?> Cu > Ni?> Pb >‎Cd?> Hg. The excess concentration of the nitrogen-containing pollutants was observed within the range from 1.5 to‎76 (on average 10 times) above the background value. The organic contamination of landfill groundwater (COD) is‎2–9 times and BOD5 – 1.5–3 times higher than the average background value of groundwater observation wells in‎the city network. The probable cause for the pollutants entry into groundwater is associated with lithogenous and‎exogenous fracturing of the rocks and insufficient efficiency of the existing anti-filtration system of the landfill.

AB - The purpose of this study was to assess the groundwater contamination from a sewage sludge landfill. The analysis‎was carried out in 2017 in accordance with the requirements of the national legislation for monitoring landfills‎and priority pollutants. The samples of groundwater from the landfill were taken from 25 observation wells, from‎depths of 45–60 m. The status and dynamics of changes in the landfill groundwater quality were estimated according‎to the data from the groundwater observation wells of the city observation network with regard to the chemical‎composition of groundwater and national standards of groundwater quality. The forecast estimates of a low level of‎pollutants entering groundwater through the soils characterized by low filtration properties were not justified. The‎concentration of heavy metals in groundwater was within the following range: Fe > Mn?> Zn > Al?> Cu > Ni?> Pb >‎Cd?> Hg. The excess concentration of the nitrogen-containing pollutants was observed within the range from 1.5 to‎76 (on average 10 times) above the background value. The organic contamination of landfill groundwater (COD) is‎2–9 times and BOD5 – 1.5–3 times higher than the average background value of groundwater observation wells in‎the city network. The probable cause for the pollutants entry into groundwater is associated with lithogenous and‎exogenous fracturing of the rocks and insufficient efficiency of the existing anti-filtration system of the landfill.

KW - fecal coliform bacteria

KW - groundwater

KW - heavy metals

KW - landfill

KW - organic pollution

KW - sewage sludge

KW - the Gulf of Finland

UR - http://www.scopus.com/inward/record.url?scp=85098590483&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/1b2bdfeb-f8d6-30d5-b4a4-1f84202bd220/

U2 - 10.12911/22998993/128872

DO - 10.12911/22998993/128872

M3 - Article

AN - SCOPUS:85098590483

VL - 22

SP - 68

EP - 75

JO - Journal of Ecological Engineering

JF - Journal of Ecological Engineering

SN - 2081-139X

IS - 1

ER -