Dechroming spent tanning liquor using filtration cake from enzymatic hydrolysis of chromium shavings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F15%3A43873371" target="_blank" >RIV/70883521:28140/15:43873371 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22320/15:43900189

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Dechroming spent tanning liquor using filtration cake from enzymatic hydrolysis of chromium shavings

Original language description

The work presented deals with the treatment of spent tanning liquor using the chromium cake from alkali enzymatic hydrolysis of leather shavings, the scheme is seen as a part of complete recycling of chromium in the leather industry. There is a long-termworldwide effort to keep all chromium under control, ideally in a closed loop, since chromium, especially in its hexavalent form, has a negative impact on the environment and human health. The filtration cake obtained by hydrolysis contains a significant amount of chromium and, due to its alkaline character it could be used for the treatment of spent tanning liquor. The work demonstrates that total dechroming of spent tanning liquor is possible. The efficiency of the process depends on the weight ratiobetween chromium cake and spent tanning liquor and on the retention time. Using a ratio of 0.3 and a retention time of 1 hour, the dechroming level achieved was 81.6%; for a ratio of 1, the dechroming reached up to 98.3%. Using the forme

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DM - Solid waste and its control, recycling

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Journal of the Society of Leather Technologists and Chemists

ISSN

0144-0322

e-ISSN

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Volume of the periodical

99

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

288-292

UT code for WoS article

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EID of the result in the Scopus database

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