Energy use of biodegradable municipal waste at cement plants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F17%3A10236359" target="_blank" >RIV/61989100:27350/17:10236359 - isvavai.cz</a>

Výsledek na webu

<a href="https://sgemworld.at/sgemlib/spip.php?article9994&lang=en" target="_blank" >https://sgemworld.at/sgemlib/spip.php?article9994&lang=en</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2017/42/S17.031" target="_blank" >10.5593/sgem2017/42/S17.031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Energy use of biodegradable municipal waste at cement plants

Popis výsledku v původním jazyce

In the Czech Republic, the obligation of municipalities to ensure their residents separated collection of biodegradable municipal waste (BDW) was enacted, nevertheless the issue of further management of thus collected waste has not been satisfactorily solved so far. Material recovery of bio-waste is difficult as capacity of biogas stations and composting plants is not relevantly adequate for processing such a huge amount of material. Also the disposal of final products (compost substrate, etc.) is relatively low and their sales do not cover operating costs. Due to this and other reasons (strict legislative requirements regarding management of kitchen waste and application of composts and purified biological sludge to arable land), most bio-waste is still being deposited at landfills. Since BDW has certain energy potential, it is more than desirable to seek possibilities for its thermal processing. The physical and chemical qualities of the material imply that it contains a considerable amount of moisture which could be a limiting factor. On the other hand, results of laboratory analyses proved that it contains only a limited number of toxic substances. During clinker manufacture at cement kilns, it is necessary to reach extremely high temperatures which requires incineration of huge amounts of suitable and high-calorific fuels which, in addition, have to contain certain necessary elements (carbon, iron). Adversely, chlorine content is completely undesirable. Thus cement plants seek ways how expensive fuels could be replaced by various types of alternative fuels.

Název v anglickém jazyce

Energy use of biodegradable municipal waste at cement plants

Popis výsledku anglicky

In the Czech Republic, the obligation of municipalities to ensure their residents separated collection of biodegradable municipal waste (BDW) was enacted, nevertheless the issue of further management of thus collected waste has not been satisfactorily solved so far. Material recovery of bio-waste is difficult as capacity of biogas stations and composting plants is not relevantly adequate for processing such a huge amount of material. Also the disposal of final products (compost substrate, etc.) is relatively low and their sales do not cover operating costs. Due to this and other reasons (strict legislative requirements regarding management of kitchen waste and application of composts and purified biological sludge to arable land), most bio-waste is still being deposited at landfills. Since BDW has certain energy potential, it is more than desirable to seek possibilities for its thermal processing. The physical and chemical qualities of the material imply that it contains a considerable amount of moisture which could be a limiting factor. On the other hand, results of laboratory analyses proved that it contains only a limited number of toxic substances. During clinker manufacture at cement kilns, it is necessary to reach extremely high temperatures which requires incineration of huge amounts of suitable and high-calorific fuels which, in addition, have to contain certain necessary elements (carbon, iron). Adversely, chlorine content is completely undesirable. Thus cement plants seek ways how expensive fuels could be replaced by various types of alternative fuels.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20700 - Environmental engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

17th International Multidisciplinary Scientific GeoConference: SGEM 2017 : conference proceedings : 29 June-5 July, 2017, Albena, Bulgaria. Volume 17

ISBN

978-619-7105-00-1

ISSN

1314-2704

e-ISSN

neuvedeno

Počet stran výsledku

8

Strana od-do

239-246

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

29. 6. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—