Naslov
Biological Treatment Of Coloured Waste Water Using Wetland System
(Biological Treatment Of Coloured Waste Water sing Wetland System)

Autori
Parac - Osterman, Đurđica ; Đurašević, Vedran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
5th International Instambul Textile Conference "Recent Advances in Innovation and Enterprise in Textiles and Clothing" / Akalin, Mehmet ; Usta, Ismail ; Kocak, Dilara ; Yuksed, Metin ; Dal, Vedat ; Mistik, Suleyman Ilker ; Sancak, Erhan ; Yilmaz, Buruc - Istanbul : Marmara University, Tehnical Education Faculty, Department of Textile Studies, Istanbul, Turkey, 2005

Skup
5th International Instanbul Textile Conference

Mjesto i datum
Istanbul, Turska, 19.05.2005. - 21.05.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wetland; textile waste waters; dye removal; natural adsorbents

Sažetak
Textile dyeing industry is one of the largest consumers of fresh water and water pollutants. Although, textile dyestuff represent only a small percentage in water pollution they are visible in waste waters, even when used in small quantities, due to their brilliance. The removal of dyes can be performed either by using conventional methods or by using alternative, different methods of waste water treatment. Such, alternative methods, are often less expensive, demand less man power and energy, while the effect remains the same or even better when compared to conventional methods. The system itself imitates autopurification processes which occur in nature. Such processes are filtration, adsorption, various physical, chemical and biological processes. This paper suggests using natural resources such as sand, sludge, saw dust, gravel, oak leaves and bark as components for treatment media building. Reactive and metal-complex dyestuff decolouring properties were investigated. Methods used to determine waste water quality were electrical conductivity, amount of NaCl and determination of waste water spectrofotometrically by calculating SAC values. Results obtained confirm Wetland as a system with great decolouring properties especially when treating metal-complex dyes which is best seen in decrease of SAC values. This fact was used when establishing relation between molecule size and chemical structure and decoluring properties. Saw dust was confirmed as a media component with great adsorption properties for electrolites (namely NaCl). Also, relation between the amount of electrolites added on to the treatment media and the mass of adsorbent (saw dust) was established. Results concerning electrical conductivity and colour confirm waste water treated by Wetland system appropriate for irrigation purposes. Time needed to perform decolouring suggests this system more appropriate for decolouring smaller portions of water due to the statical nature of the process itself.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

POVEZANOST RADA