Sewage Sludge Management and Application in the Form of Sustainable Fertilizer


Sugurbekova G. Nagyzbekkyzy E. Sarsenova A. Danlybayeva G. Anuarbekova S. Kudaibergenova R. Frochot C. Acherar S. Zhatkanbayev Y. Moldagulova N.
April 2023MDPI

Sustainability (Switzerland)
2023#15Issue 7

One of the most pressing environmental problems worldwide is sewage sludge (SS) management. Every year, wastewater volume increases and thus, the amount of SS produced increases as well. The disposal of SS in landfills, as practiced in many countries, is not a sustainable solution. Instead, SS, rich in organic matter and other nutrients, can be used as an alternative soil additive or fertilizer. The properties of these materials depend on their chemical composition and the method of treatment. Experience from a number of countries, such as the US and Europe, has shown that SS can be transformed from a waste into a valuable resource, provided that the final product fulfils the relevant regulatory standards. This review examines the sustainable conversion of SS to sustainable fertilizers, the impact on waste minimization, and the potential benefits in agriculture.

agriculture , anaerobic digestion , composting , fertilizer , sewage sludge

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LLP «Ecostandart.kz», 23-17 Street, Astana, 010000, Kazakhstan
Department of Chemistry, L. N. Gumilyov Eurasian National University, 2 Satpaev Street, Astana, 010000, Kazakhstan
LLP «National Production Center for Ecological and Industrial Biotechnology», 27 Bokeikhan Street, Astana, 010000, Kazakhstan
Department of Chemistry and Chemical Technology, Faculty of Technology, Taraz Regional University Named after M.Kh. Dulati, 60 Tole Bi Street, Taraz, 080000, Kazakhstan
Reactions and Chemical Engineering Laboratory (LRGP), UMR7274, Université de Lorraine-French National Scientific Research Center (CNRS), Nancy, 54000, France
Laboratory of Chemical Physics of Macromolecules (LCPM), UMR7375, Université de Lorraine-CNRS, Nancy, 54000, France

LLP «Ecostandart.kz»
Department of Chemistry
LLP «National Production Center for Ecological and Industrial Biotechnology»
Department of Chemistry and Chemical Technology
Reactions and Chemical Engineering Laboratory (LRGP)
Laboratory of Chemical Physics of Macromolecules (LCPM)

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