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Decolorization of two dyes using white rot fungus P.ostreatus (BWPH) strain and evaluation of zootoxicity of post process samples

Upadhyay Ruchi, Przystaś Wioletta

Architecture Civil Engineering Environment

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2022

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Vol. 15, no. 3

87--94

EN

Synthetic dyes are extensively used in various industries like textile and food industry and are responsible for generation of colored and toxic wastewater. The aim of study was to evaluate decolorization efficiency of White Rot Fungi P.ostreatus (strain BWPH) for dyes belonging to different classes: Anthanthrone Red (anthraquinone dye) and Disazo Red (azo dye) having concentration of 0.08g/l. The Daphnia magna immobilization test was performed to check zoo toxicity of samples during and after treatment. The result show that maximum decolorization efficiency achieved for Anthanthrone Red and Disazo Red dye after 168h was 94.31% and 73.13% respectively. The zoo toxicity test reflects that the pure dyes were much less toxic to D.magna at higher concentration. In contrast, the post process samples were more toxic to organism. It reflected production of toxic metabolites because of enzymatic degradation/biotransformation of dye. For anthraquinone dye, post process sample of 0.25 h was less toxic as compared to 168 h sample. Toxicity Unit was 23.52(class IV), and 2.61(class III) respectively for Anthanthrone Red and Disazo Red post process sample. The conducted research showed high potential of BWPH strain for decolorization dyes belonging to different classes. But the mycelium produces toxic substances during the decolorization process. It may be related to the biodegradation of these substances to toxic metabolites. Further studies have indicated to optimize the process of decolorization.

2

An Approach to Estimate Dye Concentration of Domestic Washing Machine Wastewater

İlkiz Başak Arslan, Beceren Yeşim İridağ, Candan Cevza

Autex Research Journal

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2021

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Vol. 21, no. 2

172--181

EN

This article focuses on developing a methodology which can be used to estimate the concentration of dyestuff released from textiles during domestic laundering, so that further studies involving decolorization of the wastewater from domestic washing machine can be conducted in an attempt to develop eco-friendly domestic washing processes. Due to the complexity of the problem, an approach was adopted so that, as an initial step, synthetic red and blue reactive dye solutions were prepared as representative wastewater solutions using Reactive Red 195 and Reactive Blue 19 dyestuffs for the estimation of dye concentration. This was followed by an experimental work consisting of washing tests involving the calculation of dye concentration in the wastewater obtained from domestic washing machine as well as tergotometer as a machine simulator. For this part of the work, dyed cotton plain jersey fabric samples were used to obtain wastewater solutions. All the dye solutions and the wastewater samples were measured with VIS spectrophotometer, and the maximum absorbance values were obtained at relevant wavelengths. Although the characteristics of absorbance spectra of synthetic and wastewater solutions were very different, the maximum absorbance values of both solutions overlapped at relevant wavelengths. The concentration of the dyestuff was calculated from the absorbance values measured at 540 and 592 nm for the red and blue, respectively. The statistical analysis of the data suggested that tergotometer can be used as a domestic washing machine simulator. Moreover, the regression analysis done for the dyestuff concentration under discussion revealed that the most significant factor was the washing step (main wash or rinsing) (89.5%) followed by color (red or blue) (3.4%) and washing device (washing machine or tergotometer) (1.5%).

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Badania przesiewowe grzybów podstawkowych w kierunku wykorzystania w dekoloryzacji barwnika RBBR

Przystaś W., Zabłocka-Godlewska E.

Archiwum Gospodarki Odpadami i Ochrony Środowiska

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2016

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Vol. 18, nr 4

1--7

PL

Barwniki syntetyczne stanowią poważne zagrożenie jeśli dostaną się do środowiska nawet w niewielkiej ilości. Dlatego też praca nad udoskonaleniem oczyszczania ścieków zawierających te substancje stanowi wciąż wyzwanie. Jednymi z częściej wykorzystywanych w procesach barwienia są barwniki antrachinonowe. Celem badań było określenie możliwości wykorzystania grzybów podstawkowych w dekoloryzacji zaliczanego do tej grupy remazolowego błękitu brylantowego R. Testy prowadzono na podłożach stałych o różnym składzie. Spośród 9 testowanych szczepów największą efektywność dekoloryzacji stwierdzono w przypadku: Pleurotus ostreatus (szczep K4), Xerocomus badius (szczep K45) i Hypholoma fasciculare (szczep K47). Usuwały one efektywnie barwnik dodany do podłoża bogatego w związki organiczne, natomiast obniżenie stężenia składników odżywczych stymulowało dekoloryzację tego barwnika.

EN

Synthetic dyes are a serious threat if they get into the environment, even in small quantities. Therefore, studies to improve the treatment of waste water containing dyes is still a challenge. One of the most frequently used groups of dyes in the dyeing are those belonging to the anthraquinone class. The aim of the study was to determine the possibility of using fungi in decolorization of dye belonging to this group as is Remazol Brilliant Blue R. The tests were carried out on solid media of different composition. Among the 9 strains tested, the highest activity was recorded for species: Pleurotus ostreatus (strain K4), Xerocomus badius (strain K45) and Hypholoma fasciculare (strain K47). They were effectively removing dye added to the medium rich in organic compounds, but reduction of nutrient concentrations in medium stimulated discoloration of the dye.

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Decomposition of Anthraquinone Dye in the Aqueous Solution during Advanced Oxidation Processes

Perkowski J., Ledakowicz S.

Fibres & Textiles in Eastern Europe

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2002

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Vol. 8, no. 4 (39)

68--72

EN

The results of investigations into the decomposition of an anthraquinone dye (polan blue E2R) in an aqueous solution by means of advanced oxidation with ozone, hydrogen peroxide and UV radiation are discussed in the paper. The decolouration efficiency in combined systems was compared. The best results were obtained using ozone, hydrogen peroxide and UV radiation simultaneously. Only slightly worse was the version in which ozone and hydrogen peroxide were applied. In industrial processes, when it is sufficient to decolour a solution before reuse of water in a technological cycle, advanced oxidation processes can be applied successfully. For conditions in a given plant, the process should be optimised and an appropriate version should be chosen. It seems that in the present conditions a combined use of ozone and hydrogen peroxide offers the best results.

PL

W pracy przedstawiono wyniki badań nad rozkładem barwnika antrachinonowego - błękitu polanowego E2R w roztworze wodnym za pomocą procesów pogłębionego utleniania z udziałem ozonu, nadtlenku wodoru i promieniowania UV. Porównano wydajność dekoloryzacji w układach łącznego ich stosowania. Najlepsze rezultaty uzyskano stosując jednocześnie ozon, nadtlenek wodoru i promieniowanie UV. Jedynie nieznacznie gorsza była wersja w której użyto ozonu i nadtlenku wodoru. W procesach przemysłowych gdy wystarczające jest jedynie odbarwienie roztworu przed ponownym użyciem wody w cyklu technologicznym można z powodzeniem wykorzystywać procesy pogłębionego utleniania. Dla konkretnych warunków danego zakładu powinna być przeprowadzona optymalizacja procesu i wybór właściwej wersji. Wydaje się, że w obecnych warunkach jest nią łączne stosowanie ozonu i nadtlenku wodoru.

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Decomposition of Anthraquinone Dye in the Aqueous Solution by Ozone, Hydrogen Peroxide or UV Radiation

Perkowski J., Ledakowicz S.

Fibres & Textiles in Eastern Europe

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2002

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Vol. 8, no. 3 (38)

72--77

EN

The results into investigations of the decomposition of an anthraquinone dye (polan blue E2R) in an aqueous solution induced by ozone, hydrogen peroxide and UV radiation are discussed in the paper. The effect of the ozone dose and concentration, as well as the temperature on decolouration at different initial dye concentrations, were investigated. Low ozone concentrations enabled its better utilisation in the reaction with the dye, although the process rate was slow. An increase of gas flow rate and ozone concentration at the reactor inlet caused a decrease of ozone consumption from 80% to 49%. The hydrogen peroxide concentration from 0.05 to 0.1 mol/dm3 allowed us to obtain a 45% decolouration degree after 48 hours, with the process proceeding most quickly in the first 2 hours. It was found that the yield of anthraquinone dye photolysis in the aqueous solution was affected by both the power of the UV lamp and the character of the light which it emitted. It appeared most advantageous to use monoenergetic radiation in the UV range below 310 nm.

PL

W pracy przedstawiono wyniki badań nad rozkładem barwnika antrachinonowego − błękitu polanowego E2R w roztworze wodnym pod wpływem ozonu, nadtlenku wodoru i promieniowania UV. Zbadano wpływ dawki i stężenia ozonu oraz temperatury na proces dekoloryzacji przy różnych stężeniach początkowych barwnika. Niskie stężenia ozonu pozwalają na lepsze jego wykorzystanie w reakcji z barwnikiem jednak szybkość procesu jest niska. Wzrost szybkości przepływu gazu i stężenia ozonu na wlocie do reaktora powoduje obniżenie wykorzystania ozonu z 80% do 49%. Zastosowanie nadtlenku wodoru o stężeniu 0,05-0,1 mol/dm3 pozwoliło uzyskać po 48 godzinach reakcji, stopnie dekoloryzacji w granicach 45%, przy czym proces najszybciej przebiegał w ciągu pierwszych 2 godzin. Stwierdzono, że na wydajność procesu fotolizy barwnika antrachinonowego w roztworze wodnym ma wpływ zarówno moc stosowanej lampy UV jak i charakter emitowanego przez nią światła. Najkorzystniejsze jest stosowanie promieniowania monoenergetycznego z zakresu UV poniżej 310 nm.