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The Use of Binders of Natural Origin to Improve the Technology of Creating Fuel Briquettes from Wood Waste

100%

Malovanyy M. , Vronska N. , Tymchuk I. , Zhuk V. , Moroz O. , Chornomaz N.

Journal of Ecological Engineering

2023

tom Vol. 24, nr 11

314--320

The method of wood waste utilization by pressing it into fuel briquettes is considered. It is proposed to use sulfate soap, a multi-tonnage waste of the pulp and paper industry, as an astringent. It is proven that as a result of adding a binder to the raw material, it is possible to carry out the process of forming briquettes with lower pressures, while ensuring the necessary statistical strength of the briquette. An appropriate method of supplying the binder is its preliminary mixing with wood waste. The most suitable concentration of the binder for fuel briquettes amounts to 6%. The use of a binder made it possible to reduce engine power by 40%, as well as increase the density of the obtained fuel briquettes by 10%.

Informational support on creation of the geoportal "Environmental Safety of Ukrainian-Polish Transboundary Territories" by technologies of robotized monitoring

84%

Mokryy V. , Tomin V. , Niska M. , Moroz O. , Petrushka I. , Bobush O. , Tsyhaniuk A. , Grechanyk R. , Shemelynets I.

Studia Quaternaria

2020

tom Vol. 37, Nr 1

15--19

The concept of creation of the geoportal "Environmental Safety of Ukrainian-Polish Transboundary Territories" has been developed. General principles and methodological approaches of spatiotemporal geographically distributed thematic data integration were substantiated. The geoinformation system, which is based on results of monitoring researches of objects of the nature reserve fund in the biosphere reserve "Roztochya", is considered. The geoinformation monitoring technologies ensure ecological safety management. The proposed geoportal determines directions of information technology implementation for transboundary monitoring of ecosystems in the euroregions.

Perspective Technologies of the Treatment of the Wastewaters with High Content of Organic Pollutants and Ammoniacal Nitrogen

84%

Malovanyy M. , Moroz O. , Hnatush S. , Maslovska O. , Zhuk V. , Petrushka I. , Nykyforov V. , Sereda A.

Journal of Ecological Engineering

2019

tom Vol. 20, nr 2

8--15

The paper analyzes the advanced technologies of wastewater treatment with a high content of organic pollutants and ammonium ions. Two different bi-stage scenarios for the treatment of such effluents are proposed. The first scenario includes the pretreatment in aerated lagoons and the final stage at the wastewater treatment plants after appropriate dilution with municipal sewages. The second scenario also includes the first stage in aerated lagoons with a tertiary treatment at the plant for cyanobacteria cultivation with the use of obtained biomass for biofuels production. The effects of the aeration periodicity on the leachate treatment efficiency and also on the composition of microbiocenosis in the aerated lagoons were investigated. The leachates of the Lviv landfill of municipal solid waste (MSW) were used in experimental investigations. The Lviv landfill of MSW was used for domestic and industrial wastes deposition for almost six decades, since the 1960s. It was found that the highest effect of ammoniacal nitrogen removal was obtained in the mode of periodic aeration, with the cycle duration of two hours including the one-hour aeration. It was found that the microorganisms extracted from the leachates of the Lviv MSW landfill are prospective for the new biotechnologies of treatment of the highly concentrated wastewaters, since this microbiocenosis is resistant to the widespread pollutants, in particular to heavy metal ions.