Reusing wastewater of madder natural dye for wool dyeing

Shams‐Nateri, Ali

doi:10.1016/j.jclepro.2010.12.018

Cited by 56 publications

(22 citation statements)

References 23 publications

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“…• From an ecological point of view, the amount of waste should be minimized by its reuse. Particularly, the waste water arising during the cleaning of the premix vessels could be reused as the reactant for the production of the same or similar inks, like is proposed for the waste water of dying processes by Shams-Nateri [41]. The rest of the cleaning agents should, however, be discarded, due to their contamination with a binder, a potential source of agglomerate formation.…”

Section: Interpretation Of All Results and Recommendationsmentioning

confidence: 99%

Ecological and Economic Assessment of Micro-/Milli-Continuous Campaign Manufacturing: The Case of Writing Ink

Grundemann

Scholl

2014

Processes

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Many products from the fine chemicals and pharmaceuticals industries are currently manufactured batch-wise in multi-product plants. However, this processing scheme suffers from severe drawbacks, such as a high specific energy demand, cleaning costs and high staff requirements. Transferring batch into continuous campaign productions may overcome these drawbacks. Using the case of writing ink, such a continuous manufacturing scheme was developed employing micro-and milli-structured components in order to intensify certain unit operations. In this paper, an ecological and economic assessment of both production concepts considering all lifecycle stages is presented. The aim of our work is to highlight the advantages and disadvantages of the two multi-product plants and to derive recommendations for the most efficient design and operation of a continuous campaign manufacturing plant. The results show that lower environmental impacts are related to continuous processing, which is due to the option for energy integration in this case. Furthermore, in the economic assessment, continuous processing proved to be economically viable. In this case, reduced staff requirements based on a highly automated manufacturing plant are the key to lower personnel costs. In general, the results emphasize the importance of such micro-/milli-continuous multi-product plants for the future manufacturing of newly developed products in the mentioned industries.

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Section: Interpretation Of All Results and Recommendationsmentioning

confidence: 99%

Ecological and Economic Assessment of Micro-/Milli-Continuous Campaign Manufacturing: The Case of Writing Ink

Grundemann

Scholl

2014

Processes

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“…Moreover, light fastness of the samples was in the range of 4-5 (fair) according to the blue scale standard, and there was not much difference between two dyed samples. In all cases, fastness properties of nylon were higher than wool which may be attributed to better arrangement of dye molecules within fiber polymeric structure as well as more compact structure of nylon, which makes hard scrubbing out of the dye molecule (Guesmi et al 2012;Shams-Nateri 2011).…”

Section: Fastness Evaluationmentioning

confidence: 92%

“…There are 23 organic components based on anthraquinone chemical structures in the madder dye, which contained mostly hydroxyl groups, and in some cases, carboxyl groups, and the madder color strength is related to them (Santis and Moresi 2007;Shams-Nateri 2011). Among them, fifteen groups have color strength, and this is of great importance in fastness properties of the color standpoint (Shams-Nateri 2011; Derksen et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly dyeing of wool and nylon using madder as a natural dye: kinetic and adsorption isotherm studies

Sadeghi‐Kiakhani

2015

Int. J. Environ. Sci. Technol.

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In this study, dyeing, fastness and adsorption isotherm characteristics of madder natural dye on the wool and nylon yarns were investigated. Wool and nylon were first mordanted by aluminum sulfate, dyed with natural dye extracted from madder root, and the rates of dyeing and equilibrium times were determined and compared. Nylon, indeed, showed higher dyeing rate and reached equilibrium at comparatively lower times. Adsorption isotherms were identified to be a Nernst-type substrate. In addition, the affinity (Dl°), free energy (DH°) and entropy (DS°) of madder on the wool and nylon were calculated. The obtained results from thermodynamic data indicated that with temperature rise, the partition ratio and the standard affinity significantly decreased. The affinity of madder natural dye to the nylon was gradually higher as compared with wool. Wool, indeed, displayed higher negative values for both enthalpy and entropy changes as compared to those values of nylon. The colorimetric and fastness properties of madder natural dye on nylon were overall superior than on wool.

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“…Carminic acid is the main cochineal pigment with good light stability and its color varies from orange to red depending on the pH [50,51]. The constituents of madder are anthraquinone compounds containing hydroxyl auxochromic groups that are able to form complex compounds with the metal ions [52,53].…”

Section: Chemical Structures Of Different Natural Dyes and Their Propmentioning

confidence: 99%

Assessment of the Use of Natural Extracted Dyes and Pancreatin Enzyme for Dyeing of Four Natural Textiles: HPLC Analysis of Phytochemicals

et al. 2020

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In the present study, four natural textiles (cotton, linen, wool, and silk) were dyed with 14 naturally extracted dyes, and pancreatin enzyme was used in the dyeing process. The effects of pancreatin enzyme and its buffer on naturally dyed textile samples were evaluated. Two concentrations of pancreatin enzyme and buffer were used as pretreatments for dyed textiles. Proteinic fabrics showed the highest relative color strength (RCS) values of 137.23% and 132.2% when the pancreatin enzyme was applied on wool and silk dyed with pomegranate skin and bloodroot at concentrations A and B, respectively. Linen fiber dyed with catechu tree showed the highest total color difference (TCD) values with buffer (6.83) and pancreatin enzyme A (5.7) and B (6.3). This shows that there were no side effects of the pancreatin enzyme on the studied dyed textiles. By high-performance liquid chromatography (HPLC) analysis, the root extract from madder showed the presence of salicylic acid (1758.91 mg/kg extract), quercetin (844.23 mg/kg extract), ellagic acid (784.86 mg/kg extract) and benzoic acid (582.68 mg/kg extract) as main compounds. In cochineal extract the main compounds were rutin (37.732 mg/kg extract), kampherol (1915.98 mg/kg extract), myricetin (809.97 mg/kg extract), quercetin (496.76 mg/kg extract) and salicylic acid (193.87 mg/kg extract).

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Reusing wastewater of madder natural dye for wool dyeing

Cited by 56 publications

References 23 publications

Ecological and Economic Assessment of Micro-/Milli-Continuous Campaign Manufacturing: The Case of Writing Ink

Ecological and Economic Assessment of Micro-/Milli-Continuous Campaign Manufacturing: The Case of Writing Ink

Eco-friendly dyeing of wool and nylon using madder as a natural dye: kinetic and adsorption isotherm studies

Assessment of the Use of Natural Extracted Dyes and Pancreatin Enzyme for Dyeing of Four Natural Textiles: HPLC Analysis of Phytochemicals

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