Modelling of Tannery Wastes Treatment for its Optimization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F01%3A00000039" target="_blank" >RIV/70883521:28110/01:00000039 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of Tannery Wastes Treatment for its Optimization

Popis výsledku v původním jazyce

The tanning process itself generates by-products. One tonne of hide will yield approximately 200 kg of leather, 250 kg of tanning solid waste, 350 kg non-tanning waste, and 200 kg is lost in waste water. In order to reduce reliance on land-filling, a process has been developed to convert these wastes to useful products. The process, based on enzymatic hydrolysis, produces a commercially-useful protein solution. Under the reaction conditions used, the protein-chrome complex is converted into insoluble chromic hydroxide which is easily removed from the reaction mixture by filtration. In this paper, a theoretical treatment of the process is presented and the total process costs calculated. A significant finding is the existence of a total cost minimum when a critical range of hydrolysis has been reached. This is the result of a balance between reaction costs and costs related to evaporating the reaction mixture to the final concentration.

Název v anglickém jazyce

Modelling of Tannery Wastes Treatment for its Optimization

Popis výsledku anglicky

The tanning process itself generates by-products. One tonne of hide will yield approximately 200 kg of leather, 250 kg of tanning solid waste, 350 kg non-tanning waste, and 200 kg is lost in waste water. In order to reduce reliance on land-filling, a process has been developed to convert these wastes to useful products. The process, based on enzymatic hydrolysis, produces a commercially-useful protein solution. Under the reaction conditions used, the protein-chrome complex is converted into insoluble chromic hydroxide which is easily removed from the reaction mixture by filtration. In this paper, a theoretical treatment of the process is presented and the total process costs calculated. A significant finding is the existence of a total cost minimum when a critical range of hydrolysis has been reached. This is the result of a balance between reaction costs and costs related to evaporating the reaction mixture to the final concentration.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F99%2F1021" target="_blank" >GA101/99/1021: Komfort a kvalita textilních a kožedělných výrobků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of INTERNATIONAL CARPATHIAN CONFERENCE 2001

ISBN

83-91340-07-4

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

569-574

Název nakladatele

WIMR AGH Krakow

Místo vydání

Krakow

Místo konání akce

Krynica

Datum konání akce

22. 5. 2001

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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