Reagent Deodorization and Detoxification of Sewage Sludge with the Production of Reclamation Material

Anna Tsybina (), Christoph Wünsch and Irina Glushankova
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Anna Tsybina: Environmental Protection Department, Perm National Research Polytechnic University, 614990 Perm, Russia
Christoph Wünsch: Department of Engineering and Environmental Science, Merseburg University of Applied Science, 06217 Merseburg, Germany
Irina Glushankova: Environmental Protection Department, Perm National Research Polytechnic University, 614990 Perm, Russia

Energies, 2024, vol. 17, issue 5, 1-13

Abstract: This article is devoted to the search for effective ways of neutralizing sewage sludge to obtain sludge-based reclamation material. It was necessary to solve the problems of deodorizing the sludge and fixing the mobile forms of heavy metals in its composition. The composition, effective for solving the assigned problems, was experimentally determined; it included quicklime, sodium hypochlorite and peat. In the presence of sodium hypochlorite in the sludge-based composition, oxidation processes occur with the chemical transformation of ammonia and hydrogen sulfide into non-toxic and odorless compounds. Lime combined with peat promotes the humification of sewage sludge and the binding of heavy metals. Based on the composition that showed the best results, a technology has been developed for the chemical treatment of sewage sludge in situ to produce reclamation material.

Keywords: sewage sludge; sewage sludge utilization; material recovery; chemical treatment; heavy metals immobilization; deodorization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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