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BIODEGRADATION OF COMPOSITE FERTILIZER IN AEROBIC AQUEOUS AND COMPOSTING CONDITIONS

Daniela Simina Ștefan

First published: 2019-06-20https://doi.org/10.5593/sgem2019/3.2/s13.007View metrics

Abstract

The waste resulted from tanning industry represent more than 55% from raw material (raw hide or skin), (Stefan D.S. et all, 2018). The new concept of European Union (EU) referring to ?circular economy? aims to maintain the value of products, materials and resources for as long as possible by returning them into the product cycle at the end of their use, while minimising the generation of waste. The circular model proposes closing the loop of products lifecycles by increasing recycling and reuse, the target for waste being to establish a road map for reuse by turning by-products into raw materials. According to this context, a way to valorise the waste of untreated hide and skin are production of fertilisers from protein hydrolysed, such as collagen. Hydrogels are a new type of polymeric multicomponent products with a complex structure obtained by hydrolysis of pelt skin waste with application in agriculture. Biodegradable polymer-coated controlled release fertilizers are essential means to reduce cost, improve marketability, conserve land fertility, achieve high crop yields and combat climate challenges. In this paper a comparative study is presented regarding biodegradation of fertilizer obtained from pelt skin waste in aerobic conditions in aqueous media and by composting.

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Publication details

Title
BIODEGRADATION OF COMPOSITE FERTILIZER IN AEROBIC AQUEOUS AND COMPOSTING CONDITIONS
Authors
Daniela Simina Ștefan
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2019
Pages
49-56
SWS Citekey
Stefan2019134956
ISSN
1314-2704
ISBN
978-619-7408-82-9
Language
en
Publication type
Conference Paper
Keywords
composite fertilisercollagen hydrogelbiodegradationcomposting
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