Leaching Behaviour of Synthetic Leachate through a Sewage Sludge and Red Gypsum Composite as Intermediate Landfill Cover

Rosli, Nor Azalina; Aziz, Hamidi Abdul; Kueh, Ahmad Beng Hong; Lim, Leonard Lik Pueh; Zawawi, Mohd Hafiz

doi:10.3390/su15054229

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…The proposed methodology is an alternative method for determining metals in sediments. No publications on the analysis of water extracts from sediments have been reported in the available scientific literature, although research on leaching of heavy metals from sludges has been conducted on a large scale [48][49][50]. Such an approach is lacking in sediments research.…”

Section: Resultsmentioning

confidence: 99%

Comparison of leaching behaviour of heavy metals from sediments sampled in sewer systems – environmental and public health aspect

Kujawska,

Duda-Saternus,

Szulżyk-Cieplak

et al. 2023

Ann Agric Environ Med.

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Introduction andObjective. The article analyzes the content of heavy metals and standard physical as well as chemical pollution indicators in different types of sediments from stormwater, combined sewer and sanitary sewer systems. Materials and method. Nickel, lead, chromium, copper, zinc and cadmium, as well as standard physical and chemical pollution indicators, were determined in sewage sediments. Aqueous extracts of sediments samples, taken from storm water sewer inlet sediments traps, storm sewers, sanitary sewers and combined sewers, were prepared in accordance with PN-EN 12457-2:2006. After mineralization, the concentrations of the metals: nickel, lead, chromium, copper, zinc and cadmium in the extracts were determined using the inductively coupled plasma emission spectroscopy technique. Results. The results were analyzed with a non-metric multidimensional scaling algorithm. The heavy metal content was variable depending on the sediments collection site. The heavy metals nickel, lead, chromium, copper, zinc and cadmium were found in the sediments from stormwater inlets, storm sewer and sanitary sewer channels, with variability in the concentration of individual metals. The sediments from the flushing of sanitary sewers and combined sewers did not contain cadmium. Conclusions. The content of heavy metals in sediments varied depending on the sampling location and type of sewer system, indicating the need for detailed monitoring to identify the sources of emissions. Sediments from stormwater sewers have higher concentrations of heavy metals, with those from sewer inlets showing zinc concentrations exceeding regulatory limits, highlighting the variability and potential environmental impact of different sewer systems.

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Section: Resultsmentioning

confidence: 99%

Comparison of leaching behaviour of heavy metals from sediments sampled in sewer systems – environmental and public health aspect

Kujawska,

Duda-Saternus,

Szulżyk-Cieplak

et al. 2023

Ann Agric Environ Med.

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“…Untuk mengurangi dampak sampah TPA terhadap lingkungan sekitarnya, penggunaan penutup dengan bahan yang mampu mengisolasi sampah dari lingkungan sekitar menjadi solusi krusial [5]. Sistem penutup akhir harus dirancang secara teliti, dan mencakup lapisan pengendali erosi tanah, lapisan pelindung, lapisan drainase, lapisan kedap air, lapisan pembuangan, lapisan pondasi, dan elemen lainnya [5], [6]. Penggunaan Temporary landfill cover dapat digunakan untuk meminimalkan infiltrasi cairan ke dalam limbah guna menghindari terbentuknya air lindi [7].…”

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Permeabilitas Tanah Lanau Sebagai Temporary Landfill Cover yang Distabilisasi dengan Bakteri dan Larutan Sementasi

Rahmadi,

Indriani,

Utomo

2023

JURMATEKS

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In the development of waste management, piles of rubbish can produce liquid waste called leachate. Leachate from landfills can affect human health and pollute the environment and aquatic biota because leachate contains various chemical compounds and many pathogenic bacteria. To minimize the impact of landfill waste on the surrounding environment, the waste is covered with material that can isolate it from the surrounding environment. This research aims to determine the optimal level of cementation solution addition to waste sludge as temporary landfill cover using the MICP method. The research results reveal that the sample permeability meets the criteria for a temporary cover landfill, where the permeability specification limits are between 10-4 to 10-5 cm/s. The research revealed that 0.25M cementation solution and Bacillus Subtilis bacteria had the lowest permeability. Soil without cementation solution has a permeability coefficient value of 5.04×10-4 cm/s, and decreases to 6.67×10-5 cm/s with a cementation solution concentration of 0.25M over a 28-day peram period. Variations in the 0.25M cementation solution showed its ability to reduce soil permeability by up to 86.7%. Permeability has decreased, which means the soil pores are getting smaller. Thus, this addition can reduce soil permeability and minimize the possibility of environmental damage by leachate.

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Leaching Behaviour of Synthetic Leachate through a Sewage Sludge and Red Gypsum Composite as Intermediate Landfill Cover

Cited by 2 publications

References 30 publications

Comparison of leaching behaviour of heavy metals from sediments sampled in sewer systems – environmental and public health aspect

Comparison of leaching behaviour of heavy metals from sediments sampled in sewer systems – environmental and public health aspect

Permeabilitas Tanah Lanau Sebagai Temporary Landfill Cover yang Distabilisasi dengan Bakteri dan Larutan Sementasi

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