DOI: 10.24411/1728-323X-2018-11045

Section

Physical geography and biogeography, soil geography and landscape geochemistry

Title

THE AGROCHEMICAL PROPERTIES OF THE COMPOSTS BASED ON THE WASTEWATER SLUDGE WITH ADDING DIFFERENT FILLINGS

Сontributors

A. A. Yashkina, senior lecturer, researcher, Murmansk State Technical University, This email address is being protected from spambots. You need JavaScript enabled to view it.;

O.       A. Fedorova, Ph. D. (Engineering), Head of the department,

E. A. Kirdishova, leading engineer, the laboratory analysis and technical measurements for the Northwestern Federal District (CLATI

in the Murmansk Region). Murmansk, Russia.

Abstract

The paper examines different organic components for adding into wastewater sludge to produce organic fertilizers by the compost method. Wood shavings, spent grain and brown algae were used as bulker materials. Wood shavings are wastes from wood processing industry, spent grain is from brewery industry. The compost mixtures based on sewage sludge were obtained in the laboratory, they were analyzed through the main agro-chemical parameters, in addition to that the determination of the content of heavy metals in them was provided. The phyto-testing of water extracts from soil mixtures with adding the compost was also provided in this paper. Due to this research we can come to the conclusion that the examined composts could be referred to the second group of organic fertilizers on the wastewater sludge basis.

Keywords

wastewater sludge, compost, spent grain, brown algae, heavy metals.

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