Tjaša Griessler Bulc (Avtor), Alenka Ojstršek (Avtor)

Povzetek

The objective of the present paper was to examine the treatment efficiency of constructed wetlands (CW) for the dye-rich textile wastewater with special focus on colour reduction. Preliminary, a series of dynamic experiments were performed in the CW model packed with gravel, sand, and zeolitic tuff on three synthetically-prepared wastewaters using chemically differ dyestuffs, auxiliaries and chemicals, in order to investigate the potential of low-cost materials as media for textile dye-bath wastewater treatment. The obtained results evidence that applied CW model reduces colour by up to 70%, and COD and TOC by up to 45%. Based on these results, the pilot CW with vertical (VF) and horizontal flow (HF) was constructed near textile factory mainly for cotton and cotton/PES processing with intention to treat real textile wastewater in-situ. It was designed for 1 m3/d, covering 80 m2, packed with sand and gravel, and planted with Phragmites australis. The average treatment efficiency of the CW for the selected pollution parameters were: COD 84%, BOD5 66%, TOC 89%, Ntotal 52%, Norganic 87%, NH4-N -331%, sulphate 88%, anion surfactant 80%, total suspended solids (TSS) 93%, and colour 90%, respectively. The results unequivocally proved that the CW could offer an optimal solution to meet the environmental legislation as well as requirements for effective and inexpensive textile wastewater treatment.

Ključne besede

coloured textile wastewater;constructed wetland;Phragmites australis;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FS - Fakulteta za strojništvo
UDK: 628.3:677.11
COBISS: 12026390 Povezava se bo odprla v novem oknu
ISSN: 0304-3894
Št. ogledov: 1283
Št. prenosov: 76
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarne ključne besede: Water Pollutants;Textile Industry;Water Purification;Plants;Rastline;Sladka voda;Tekstilna industrija;Voda, onesnaževalci;Voda, čiščenje;
URN: URN:SI:UM:
Strani: str. 76-82
Letnik: ǂVol. ǂ155
Zvezek: ǂiss. ǂ1/2
Čas izdaje: June 2008
DOI: 10.1016/j.jhaymat.2007.11.068
ID: 8718601