Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 2003

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: bioutilisation

Sortuj według:

Ogranicz wyniki do:

Praktyczne wykorzystanie enzymów po bioutylizacji odpadowych mieszanek włókienniczych do wytwarzania włókien Celsol

Wrześniewska-Tosik K., Wesołowska E., Wawro D., Ciechańska D.

Prace Naukowe Instytutu Technologii Organicznej i Tworzyw Sztucznych Politechniki Wrocławskiej. Konferencje

2003

Vol. 52, nr 25

416-418

Textile blends consisting of cellulose and polyester fibres are used in many branches of life. Taking into consideration ecological aspects, the problem of utilisation of textile wastes containing polyester and cellulose fibres makes a point at research centres. Most of methods used so far, are characterised by large natural environmental hazard as result of poison gases emission to atmosphere or sewage to water. For ecological reasons new solutions are sought to reduce environmental pollution. Special attention is paid to possibility of utilising PET/cellulose wastes blends by biological method with enzymatic processes application. This environmental - friendly method was used for utilisation of PET/cellulose waste fabrics and described in previous articles [2,4]. This paper presents the possibility of repeated enzyme application after bioutilisation of waste blends for modification of celluiose pulp useful for fibres manufacture according to original, Celsol method [3] elaborated in IWCH (Lodz, Poland). The cellulose pulp V-67 (California pine cellulose) after mechanical pre-treatment was subjected to the enzyme solution (Econase) action that was used in hydrolysis of PET/ cellulose blends [1). As a result of the modification of cellulose pulp using recycled enzyme, the solubility of cellulose in aqueous sodium hydroxide increases to 99 %. From biomodified cellulose pulp, the solution of cellulose was prepared. The obtained alkaline cellulose solution was used for the manufacture of Celsol fibres (5). Cellulose fibres made from modified cellulose pulp using recycled enzymes are characterised by good tenacity (19.4 cN/tex) and elongation about 13 %. The research carried out showed the possibility of secondary use of enzymes for biomodification of cellulose pulp and proved that such a form of direct dissolved cellulose is useful for fibres manufacture according to Celsol method.

Improvement of the Enzymatic Utilisation of Textile Waste from Cellulose/Polyester Blends

Wrześniewska-Tosik K., Wesołowska E., Wawro D., Struszczyk H.

Fibres & Textiles in Eastern Europe

2003

Vol. 11, no. 3 (42)

63--66

This paper presents the continuation of studies on the application of cellulolytic enzymes to the bioutilisation of the cellulose component of PET/cellulose waste blends. In these studies, the commercial enzyme Econase CE (Rhöm Enzyme OY, Finland) originating from the Trichoderma reesei strain, was used for the biodegradation process. The scope of research investigations was broadened for other objects such as knitted fabric wastes containing PET/cotton and PET/viscose fibres, and the possibility of reused enzyme application after cellulose hydrolysis was determined.

W artykule przedstawiono badania dotyczące zastosowania enzymów w procesie bioutylizacji odpadów włókienniczych. Do tego celu wykorzystano odpady dzianin poliestrowo-bawełnianych oraz poliestrowo-wiskozowch, i enzym o nazwie handlowej Ekonaza CE (Rhöm Enzyme OY, Finland), pochodzący ze szczepu Trichoderma reesei. Oceniono możliwości wykorzystania enzymu recyrkulowanego do biomodyfikacji celulozy oraz otrzymania z tak zmodyfikowanej celulozy włókien metodą Celsol.