scholarly journals Potential environmental risk assessment of di-2-ethylhexyl phthalate emissions from a municipal solid waste landfill leachate

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12163
Author(s):  
Paweł Wowkonowicz ◽  
Marta Kijeńska ◽  
Eugeniusz Koda
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Landfill Leachate ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
The European Union ◽  
Local Soil ◽  
Potential Risks ◽  
Ethylhexyl Phthalate

Background In certain countries, including Poland, polyvinyl chloride (PVC) waste, together with di-2-ethylhexyl phthalate (DEHP) contained within (up to 60%), is mostly directed to municipal solid waste (MSW) landfills. From there, over time, it is released from the polymer matrix and can migrate with landfill leachate into the environment. The amount of DEHP placed on the Polish market since the start of industrial production and the prevalent landfilling disposal of PVC waste in Poland, indicate that DEHP pollution can increase risk factors in the future. The objective of this study was to determine the concentrations of DEHP in leachates from a chosen MSW landfill directed to a local sewage treatment plant (STP) and estimate the associated potential risks to the environment. Results DEHP concentrations in leachates ranged from < LOQ to 394.4 µg/L, depending on the sampling year and season. DEHP is a pervasive environmental contaminant present in all investigated landfill leachate samples. The results from The European Union System for the Evaluation of Substances (EUSES) modelling related to DEHP in leachate directed to STP indicated potentially unacceptable risk to freshwater organisms; and birds and mammals feeding on earthworms (where a sewage sludge applications in agriculture take place). The results indicated low risk for other environmental components including local fresh-water sediment, local soil and microorganisms of STP, and freshwater fish-eating birds and mammals. Conclusions Future DEHP emissions may occur after the technical lifetime of the landfill and/or decay its bottom sealing. To avoid contamination, the monitoring of landfills after closure should include DEHP concentrations and last longer than the recommended (inter alia in Poland) 30 years, or until emissions from PVC to leachate are eliminated. More research on leachate of DEHP and its potential risks should be conducted, utilising detailed modelling which can including other landfills and different routes of DEHP emissions in leachates.

scholarly journals The immobilisation of heavy metals from sewage sludge ash in geopolymer mortars

2020 ◽  
Vol 322 ◽  
pp. 01026
Author(s):  
Mateusz Sitarz ◽  
Tomasz Zdeb ◽  
João Castro Gomes ◽  
Erick Grünhäuser Soares ◽  
Izabela Hager
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Municipal Wastewater ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Fluidised Bed ◽  
The European Union ◽  
Sewage Sludge Ash ◽  
Sludge Ash

Sewage sludge is a semi-solid waste material created as a result of the sewage treatment of industrial or municipal wastewater. Because the laws and regulations of the European Union require not only a reduction in waste generation but also the preparation of waste for reuse and disposal, it is necessary to look for new methods of the application of sewage sludge as part of sustainable waste management. In this study, ash formed as a result of the combustion of sewage sludge from the sewage treatment plant in Płaszów, Krakow in a fluidised bed furnace at a temperature of around 800°C was used. Sewage sludge ash (SSA) contains over 30% SiO2 and approx. 10% Al2O3, which indicates potential applications in geopolymer materials. In this study, samples of geopolymer mortars with a binder containing sewage sludge ash as well as fly ash (FA) and ground granulated blast furnace slag (GGBFS) were prepared. The mechanical parameters were determined after 2, 7, 14, and 28 days. The results show that the sewage sludge ash-based geopolymer shows binding properties at ambient temperature and, depending on the presence of FA and/or GGBFS, the compressive strength varies from 5 to 45 MPa after 28 days. The aim of the research was also to determine the total content of heavy metals (Sb, As, Cr, Cd, Cu, Ni, Pb, Hg, Zn) in the raw materials used and their leachability from the structure of the hardened materials. Immobilisation of heavy metals is very promising. Based on the results of tests, it seems possible to use SSA in geopolymer materials, but not as the main component of the binder.

scholarly journals Local treatment of leachate from MSW landfills using soil plant - system

2019 ◽  
pp. 321-334
Author(s):  
Lars Thörneby ◽  
William Hogland ◽  
Erling Alm ◽  
Anders Lind´en ◽  
Hans Dahl ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Conventional Treatment ◽  
Environmental Concern ◽  
Sewage Treatment ◽  
Local Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Removal Efficiencies ◽  
Municipal Sewage Treatment Plant

Landfill leachate is identified as an environmental concern, as it contains both eutrophicating and hannful substances. Collection and treatment of leachate is therefore a necessity and most landfills in Sweden treat the leachate before discharge into any recipient. More and more landfills changes to local treatment and at Moskogen and Hedeskoga landfills Soil-Plant (SP) systems were designed to replace the conventional treatment of leachate at the municipal sewage treatment plant. Installed in 1998, the SP-system at Moskogen have removal efficiency today for some key parameters of about: 97% for BOD; 41 % for COD; and for NH4-N 99%. The SP-system at Hedeskoga was planted with cuttings (Salix) in the spring of 1999 and the system was put into operation in the summer and the removal efficiencies for pollutants in the ponds was in July for: BOD 80%; COD 65%; Tot-N 87%; and NH4-N 94%.

إدارة الطوارئ في محطات معالجة مياه الصرف الصحي حالة دراسة: محطة الشمال في بيت لاهيا

2019 ◽  
Vol 7 (3) ◽  
pp. 66-76
Author(s):  
Alaa Mahmoud Msalam ◽  
Nizam M. El-Ashgar ◽  
Mohamad Ramadan Alagha
Keyword(s):  
Emergency Response ◽  
Preventive Measures ◽  
Gaza Strip ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
The North ◽  
Contingency Plans ◽  
Potential Risks ◽  
The Gaza Strip

The aim of this study is to identify the potential risks to the North Station (Beit Lahiya Station and the North Emergency Station), and to prepare emergency response procedures in the sewage treatment plant in Northern Gaza. The researchers followed the descriptive and analytical approach of the sources and reports issued by the institutions related to the sewage stations in the Gaza Strip. The study also included interviews with engineers at the station to analyze and assess the risks to the North station, to identify indicators to prevent flooding of Umm al-Nasr village, and to identify preventive measures to avoid disasters. The study also recommended the necessity of finishing the development of the North Emergency Station Project to accommodate the cumulative increase in the amount of treated water, as well as work on the preparation of contingency plans to deal with the expected risks and the preparation of preparedness and response procedures for each risk.

Removal of bis(2-ethylhexyl) phthalate at a sewage treatment plant

2003 ◽  
Vol 37 (6) ◽  
pp. 1385-1393 ◽  
Author(s):  
Sanna K Marttinen ◽  
Riitta H Kettunen ◽  
Kai M Sormunen ◽  
Jukka A Rintala
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Ethylhexyl Phthalate

إدارة الطوارئ في محطات معالجة مياه الصرف الصحي حالة دراسة: محطة الشمال في بيت لاهيا

2019 ◽  
Vol 7 (3) ◽  
pp. 66-76
Author(s):  
Alaa Mahmoud Msalam ◽  
Nizam M. El-Ashgar ◽  
Mohamad Ramadan Alagha
Keyword(s):  
Emergency Response ◽  
Preventive Measures ◽  
Gaza Strip ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
The North ◽  
Contingency Plans ◽  
Potential Risks ◽  
The Gaza Strip

The aim of this study is to identify the potential risks to the North Station (Beit Lahiya Station and the North Emergency Station), and to prepare emergency response procedures in the sewage treatment plant in Northern Gaza. The researchers followed the descriptive and analytical approach of the sources and reports issued by the institutions related to the sewage stations in the Gaza Strip. The study also included interviews with engineers at the station to analyze and assess the risks to the North station, to identify indicators to prevent flooding of Umm al-Nasr village, and to identify preventive measures to avoid disasters. The study also recommended the necessity of finishing the development of the North Emergency Station Project to accommodate the cumulative increase in the amount of treated water, as well as work on the preparation of contingency plans to deal with the expected risks and the preparation of preparedness and response procedures for each risk.

scholarly journals Nitrogen removal efficiency of an A2/O bio-reactor treating domestic sewage mixed with landfill leachate and fecal sewage

2013 ◽  
Vol 12 (2) ◽  
pp. 181-189
Keyword(s):  
Removal Efficiency ◽  
Landfill Leachate ◽  
Orthogonal Array ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Volume Ratio ◽  
Domestic Sewage ◽  
Mixing Proportion ◽  
Optimal Mixing

A set of anaerobic-anoxic-aerobic (A2/O) bio-reactor system was used to treat domestic sewage mixed with landfill leachate and fecal sewage in Datansha Sewage Treatment Plant in Guangzhou China. The experiment investigated the optimal mixing proportion of treating landfill leachate, fecal sewage mixed with domestic sewage synchronously and the optimal running conditions for the removal efficiency of nitrogen by an orthogonal array test. A confirmatory experiment was also carried out to verify the optimal parameters obtained by the orthogonal array test. The results showed that: the optimal volume ratio of landfill leachate, fecal sewage and urban wastewater in the A2/O process was 1:3.75:1000. The average removal efficiency of NH3-N, TN and COD can reach 96%, 61% and 85% respectively under the conditions of hydraulic retention time (HRT) of 11h, dissolved oxygen (DO) of 3 mg L-1 the mixed-liquid return ratio (r) of 200% and sludge return ratio (R) of 80%.

Characterisation of ultraviolet-absorbing recalcitrant organics in landfill leachate for treatment process optimisation

2016 ◽  
Vol 35 (3) ◽  
pp. 325-328 ◽  
Author(s):  
Olya S Keen
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Landfill Leachate ◽  
Treatment Plant ◽  
Molecular Size ◽  
Size Exclusion ◽  
Ultraviolet Disinfection ◽  
Leachate Treatment

Organics in leachate from municipal solid waste landfills are notoriously difficult to treat by biological processes. These organics have high ultraviolet absorbance and can interfere with the ultraviolet disinfection process at the wastewater treatment plant that receives leachate if the leachate flow contribution is large enough. With more wastewater treatment plants switching to ultraviolet disinfection, landfills face increased pressure to treat leachate further. This study used size exclusion chromatography, fluorescence spectroscopy and ultraviolet/Vis spectrophotometry to characterise the bulk organic matter in raw landfill leachate and the biorecalcitrant organic matter in biologically treated leachate from the same site. The results indicate that biorecalcitrant organics have the polyphenolic absorbance peak at 280 nm, fluorescence peak at 280 nm excitation and 315 nm emission, and molecular size range of 1000–7000 Da, all of which are consistent with lignin. The lignin-like nature of biorecalcitrant leachate organics is supported by the fact that 30%–50% of municipal solid waste consists of plant debris and paper products. These findings shed light on the nature of biorecalcitrant organics in leachate and will be useful for the design of leachate treatment processes and further research on leachate treatment methods.

scholarly journals Sewage Management Changes in the North-eastern Poland After Accession to the European Union

2018 ◽  
Vol 30 ◽  
pp. 02005
Author(s):  
Szymon Skarżyński ◽  
Izabela Bartkowska
Keyword(s):  
European Union ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Infrastructure Development ◽  
The European Union ◽  
The North ◽  
North Eastern

Poland's accession to the European Union contributed to the infrastructure development of the whole country. One of the elements of the modernized infrastructure is the sewage network and facilities on this network, as well as facilities for waste water treatment and disposal of sludge. A wide stream of funds flowing to the country, and consequently also to the north-eastern polish voivodeships (Podlaskie, Warmian-Masurian, Lublin), allowed modernization, organize, and sometimes to build a new sewage management of this part of the country. The main factors and parameters that allow us to evaluate the development of the sewage management in north-eastern Poland are included: percentage of population using sewage treatment plants, number of municipal sewage plants with the division of their type, number of industrial plants, number of septic tanks, amount of sewage purified in a year, amount of sludge produced in the year, design capacity of sewage treatment plant, size of plant in population equivalent (PE). From a number of investments in the field of wastewater management carried out in the discussed area in the period after Poland's accession to the European Union, 9 investments were considered the most important, 3 from each of the voivodeships.

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