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Article

Optimal Solutions for the Use of Sewage Sludge on Agricultural Lands

1
European Center of Excellence for the Environment, Faculty of Sciences and Environment, “Dunaărea de Jos” University of Galati, 111 Domneasca Street, 800201 Galati, Romania
2
Industrial Engineering and Management Department Emil Cioran, Faculty of Engineering, Lucian Blaga University of Sibiu, Street, no. 4, 550025 Sibiu, Romania
3
Academy of Romanian Scientists, 3 Ilfov Street, Sector 5, 010071 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Maria Cristina Collivignarelli
Water 2021, 13(5), 585; https://doi.org/10.3390/w13050585
Received: 24 December 2020 / Revised: 17 February 2021 / Accepted: 19 February 2021 / Published: 24 February 2021
The use of sewage sludge in agriculture decreases the pressure on landfills. In Romania, massive investments have been made in wastewater treatment stations, which have resulted in the accumulation of important quantities of sewage sludge. The presence of these sewage sludges coincides with large areas of degraded agricultural land. The aim of the present article is to identify the best technological combinations meant to solve these problems simultaneously. Adapting the quality and parameters of the sludge to the specificity of the land solves the possible compatibility problems, thus reducing the impact on the environment. The physico-chemical characteristics of the fermented sludge were monitored and optimal solutions for their treatment were suggested so as to allow that the sludge could be used in agriculture according to the characteristics of the soils. The content of heavy metals in the sewage sludge was closely monitored because the use of sewage sludge as a fertilizer does not allow for any increases in the concentrations of these in soils. The article identifies those agricultural areas which are suitable for the use of sludge, as well as ways of correcting some parameters (e.g., pH), which allow the improvement of soil quality and obtained higher agricultural production. View Full-Text
Keywords: sewage sludge; physico-chemical parameters; mapping; soil amendment; heavy metals sewage sludge; physico-chemical parameters; mapping; soil amendment; heavy metals
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MDPI and ACS Style

Iticescu, C.; Georgescu, P.-L.; Arseni, M.; Rosu, A.; Timofti, M.; Carp, G.; Cioca, L.-I. Optimal Solutions for the Use of Sewage Sludge on Agricultural Lands. Water 2021, 13, 585. https://doi.org/10.3390/w13050585

AMA Style

Iticescu C, Georgescu P-L, Arseni M, Rosu A, Timofti M, Carp G, Cioca L-I. Optimal Solutions for the Use of Sewage Sludge on Agricultural Lands. Water. 2021; 13(5):585. https://doi.org/10.3390/w13050585

Chicago/Turabian Style

Iticescu, Catalina; Georgescu, Puiu-Lucian; Arseni, Maxim; Rosu, Adrian; Timofti, Mihaela; Carp, Gabriel; Cioca, Lucian-Ionel. 2021. "Optimal Solutions for the Use of Sewage Sludge on Agricultural Lands" Water 13, no. 5: 585. https://doi.org/10.3390/w13050585

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