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Title:Razbarvanje odpadnih voda procesa barvanja s postopki flokulacije in koagulacije
Authors:Poberžnik, Mojca (Author)
Simonič, Marjana (Author)
Files:.pdf Tekstilec_2005_Poberznik,_Simonic_Razbarvanje_odpadnih_voda_procesa_barvanja_s_postopki_flokulacije_in_koagulacije.pdf (530,11 KB)
 
URL http://www.tekstilec.si/wp-content/uploads/2005/10/Razbarvanje-odpadnih-voda-procesa-barvanja-s-postopki-flokulacije-in-koagulacije.pdf
 
Language:Slovenian
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Odpadne barvalne kopeli po barvanju celuloznih vlaken z reaktivnimi barvili so zelo obarvane, saj vsebujejo večje količine hidroliziranih barvil. V raziskavi smo proučevali učinkovitost postopkov koagulacije in flokulacije za čiščenje odpadnih barvalnih kopeli neposredno po barvanju viskozne tkanine po postopku izčrpavanja. V raziskavo so bila vključena tri monofunkcionalna vinilsulfonska barvila, ki jih izdelovalci barvil priporočajo za t.i. kombinacije trikromi. V eksperimentalnem delu smo za preliminarne raziskave razbarvanja uporabili štiri anorganske koagulante ($FeCl_3$, $Ca(OH)_2$, $Fe_2(SO_4)_3$ in $Al_2(SO_4)_3$ · $18H_2O$) in komercialni organski flokulant, posamezno in v kombinaciji. V nadaljevanju smo se glede na začetne rezultate osredotočili na uporabo samega organskega flokulanta. Proučevali smo vpliv pH medija na učinkovitost čiščenja in optimirali količino uporabljenega flokulanta. Učinek fizikalno-kemičnega čiščenja smo ovrednotili spektrofotometrično z določanjem koncentracije barvil in nekaterih sumarnih ekoloških parametrov v odpadnih barvalnih kopelih pred čiščenjem in po njem. Rezultati raziskave so pokazali, da je z uporabo koagulanta učinek razbarvanja uporabljenih reaktivnih barvil več kot 90 odstotkov, z nadaljnjo filtracijo (0,45 μm stekleni filter) pa se učinek poveča do 99,5 odstotka.
Keywords:reaktivna vinilsulfonska barvila, postopek izčrpavanja, odpadne barvalne kopeli, koagulacija, flokulacija, organski flokulanti, anorganski koagulanti
Year of publishing:2005
Number of pages:str. 237-244
Numbering:št. 10/12, Letn. 48
ISSN:0351-3386
UDC:628.16:628.34:504
ISSN on article:0351-3386
COBISS_ID:10263318 Link is opened in a new window
NUK URN:URN:SI:UM:DK:YI9AMDUS
License:CC BY 4.0
This work is available under this license: Creative Commons Attribution 4.0 International
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Downloads:45
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Record is a part of a journal

Title:Tekstilec
Publisher:Zveza inženirjev in tehnikov tekstilcev, Splošno združenje tekstilne industrije
ISSN:0351-3386
COBISS.SI-ID:763396 New window

Secondary language

Language:English
Title:The decoloration of waste water after dyeing by the coagulation and flocculation
Abstract:In most cases, after dyeing structurally complex viscose fabrics with reactive vinylsulphonic dyes, waste water contains a high amount of hydrolized dyes. The objective of the research was to study the efficiency of coagulation and flocculation for the removal of colour from waste water directly after dyeing cellulosic fabric in the exhaustion procedure. Three mono-functional vinylsulphonic dyes, recommended by the producers for the so-called "trichrom" combinations, were used in the research. In the experimental work, four inorganic coagulants ($FeCl_3$, $Ca(OH)_2$, $Fe_2(SO_4)_3$ and $Al_2(SO_4)_3$ · $18H_2O$) and a commercial organic flocculant were used. With regard to the results of the preliminary experiments, further research was focused to a commercial organic flocculant. The influence of pH was studied and the optimal amount of flocculant was determined. The efficiency of physical-chemical treatment of a dyed waste water was evaluated spectrophotometrically. The results of the research showed that by using the commercial flocculant 90% of decoloration of the used reactive dyes was obtained, and by using an additional 0.45 μm fibreglass filter even 99,5% of colour removal could be achieved.
Keywords:vinylsulphonic reactive dyes, exhaustion procedure, waste water after dyeing, coagulation, flocculation, organic flocculant, inorganic coagulant


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