The effectiveness of biodrying waste treatment in full scale reactor

Dębicka, Marlena; Żygadło, M.; Latosińska, Jolanta

doi:10.1515/chem-2017-0009

Cited by 14 publications

(8 citation statements)

References 15 publications

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“…According to [19] the continuous decrease in the feedstock humidity could be additional indicator of the organic matter decomposition, because in result of biodrying process about 28% of initial waste mass was evaporated as a CO 2 and H 2 O. Similar results had been reported in publications [20,21]. Temperature changes registered in the different reactor parts are presented in Fig.…”

Section: Temperature and Moisture Variationsupporting

confidence: 79%

Full-scale biodrying process of municipal solid waste

Dębicka

Żygadło

2017

E3S Web Conf.

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Abstract. The paper presents the results obtained in the full-scale waste biodrying reactor. The studied facility includes in the biological stage a rectangular-shaped, galvanized steel reactor equipped with a module for active aeration connected with a stove and a bio-filter for removing odours. The undersize fraction (Ø <80 mm) of the municipal solid waste (MSW) that undergoes mechanical pretreatment is treated by 14 th days in the 150 m 3 capasity reactor. Initial moisture content of the untreated waste was 54.65%. Moisture content was declined gradually during biodrying process. Temperature changes during 14th days of biodrying process were monitored with the maximum temperature 70°C. To assess the degree of stabilization of the biodried waste, the determination of the O 2 uptake was measured. The oxygen demand of untreated waste was 53.16 mg O 2 /g d.m. and after 14 th days for biodried waste oxygen consumption was 19.78 mg O 2 /g d.m. The results obtained in studies by respirometric dynamic method of oxygen uptake (expressed as O 2 /96h parameter) had been compared to the results performed using the static method, where AT 4 is the applied indicator.

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Section: Temperature and Moisture Variationsupporting

confidence: 79%

Full-scale biodrying process of municipal solid waste

Dębicka

Żygadło

2017

E3S Web Conf.

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“…where the term "eliminated" refers to carbon dioxide removed from the organic material. The microbial activity expressed as oxygen consumption carried out in a short period of time (1-4 days) could be taken as representing the biodegradation of any biomass [7][8][9][10].…”

Section: Wprowadzeniementioning

confidence: 99%

“…gdzie termin "usunięty'' odnosi się do ditlenku węgla usuniętego z substancji organicznej. Aktywność drobnoustrojów wyrażoną jako zapotrzebowanie mikroorganizmów na tlen w krótkim czasie (1-4 dni) można zastosować jako wskaźnik bio -rozkładu w reprezentatywnej próbie dowolnej biomasy [7][8][9][10].…”

Section: Wprowadzenieunclassified

Analysis of Respiratory Quotient Rq in Processof Biomass Decomposition in the Lab Technics

Dębicka

Żygadło

2018

SAE

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Biomass biodegradation under aerobic condition was investigated. The source of the biomass was potato samples. The oxygen consumption and carbon dioxide rates were monitored over 24 hours, using a 2.5 L Oxymax ER-10 respirometric chamber. The chamber with a representative sample of biomass was continuously aerated and the changes in the gas concentrations were recorded (oxygen and carbon dioxide). The oxygen uptake is directly linked to the biological activity of the microorganisms and the organic matter biodegradation. Microorganisms consume oxygen in order to decay the easy-biodegradable substrate. The biomass degradation progress under the biochemical process under oxidization conditions was described mathematically by linear regression. The fitting of calculated curves were checked by determination coefficient R 2 .

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“…As a result of landfill functioning, pollution emissions are generated, which may pose hazard to environment, e.g. biogas or leachates [4][5][6]. Landfill leachates consist not only of rainwater flowing through landfill pit, but also of all substances and ingredients washed out from wastes, and products of biochemical reactions taking place in wastes kept in a landfill.…”

Section: Introductionmentioning

confidence: 99%

The effect of sodium percarbonate dose on the reduction of organic compounds in landfill leachate

2019

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The paper discusses the issue of using classic Fenton’s reagent modification for pre-treatment of leachate from a landfill in Janczyce (Świętokrzyskie Voivodeship, Poland) – sodium percarbonate (2Na2CO3·3H2O2) was used as an alternative source of hydrogen peroxide, and hydrated iron sulphate ((II) FeSO4·7H2O) was the source of iron ions. The tests were carried out at initial process pH = 3, for different doses of the Fe2+ catalyst (ranging within 100÷5400 mgFe/L), and for mass ratio iron (II) to sodium percarbonate – 1:3. Three doses were selected after this stage, for which the following parameters were examined: the effect of initial process pH ranging between 2 and 4, the effect of oxidation process duration (30÷150 min.), and the effect of the ratio Fe2+ to sodium percarbonate (1:3, 1:5 and 1:7). The values of selected parameters (pH, COD, TOC) in leachates, both before and after the treatment process have been determined according to applicable standards. Completed tests have proven, inter alia, that the proposed implementation of the Fenton’s method with sodium percarbonate may be an effective alternative for hydrogen peroxide as an oxidiser; with an increasing dose of the 2Na2CO3.3H2O2, the improvement in landfill leachate remediation efficiency measured by decreasing TOC and COD values reaches certain extent only; the process modified with sodium percarbonate may be effective already at pH=4.

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The effectiveness of biodrying waste treatment in full scale reactor

Cited by 14 publications

References 15 publications

Full-scale biodrying process of municipal solid waste

Full-scale biodrying process of municipal solid waste

Analysis of Respiratory Quotient Rq in Processof Biomass Decomposition in the Lab Technics

The effect of sodium percarbonate dose on the reduction of organic compounds in landfill leachate

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