scholarly journals The practices of treatment of textile industry wastewater.Centering on the decolorization of dye wastewater.

1994 ◽  
Vol 23 (5) ◽  
pp. 281-292
Author(s):  
Hiroshi YAMADA
Keyword(s):  
Textile Industry ◽  
Dye Wastewater

Removal of Methylene Blue Dye by Using Eggshell Powder

2013 ◽  
Vol 65 (1) ◽  
Author(s):  
Norzita Ngadi ◽  
Chin Chiek Ee ◽  
Nor Aida Yusoff
Keyword(s):  
Methylene Blue ◽  
Textile Industry ◽  
Low Cost ◽  
Kinetic Studies ◽  
Operating Conditions ◽  
Blue Dye ◽  
Dye Wastewater ◽  
Order Model ◽  
Aquatic Life ◽  
Pseudo Second Order

Dyes contain carcinogenic materials which can cause serious hazards to aquatic life and the users of water. Textile industry is the main source of dye wastewater which results in environmental pollution. Many studies have been conducted to investigate the use of low cost adsorbent as an alternative technique for the adsorption of dye. The objective of this study is to determine the potential of eggshell powder as an adsorbent for methylene blue removal and find out the best operating conditions for the color adsorption at laboratory scale. The adsorption of cationic methylene blue from aqueous solution onto the eggshell powder was carried out by varying the operating parameters which were contact time, pH, dosage of eggshell powder and temperature in order to study their effect in adsorption capacity of eggshell powder. The results obtained showed that the best operating condition for removal of methylene blue was at pH 10 (78.98 %) and temperature 50°C (47.37 %) by using 2 g of eggshell powder (57.03 %) with 30 minutes equilibrium time (41.36 %). The kinetic studies indicated that pseudo-second-order model best described the adsorption process.

Methylene Blue Removal Using Foxtail Palm Fruits as Potential Activated Carbon

2020 ◽  
Vol 1010 ◽  
pp. 477-482
Author(s):  
Nik Raihan Nik Yusoff ◽  
Syafiqa Jauna Mohamed Jefry ◽  
Yin Teng Lai ◽  
Nurul Syazana Abdul Halim ◽  
Noor Syuhadah Subki
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Textile Industry ◽  
Contact Time ◽  
Dye Adsorption ◽  
Dye Wastewater ◽  
Palm Fruit ◽  
Water Users ◽  
Impregnation Time ◽  
Palm Fruits

Textile industry is commonly use dyes in colouring process which become the major dye wastewater source that leads to serious pollution in the environment. The disposed dyes can lead to serious harm to the water users and life in the aquatic because of the dye properties. Hence, the dye adsorption by activated carbon prepared from foxtail palm fruit was studied. The objectives of this study were: 1) to prepare activated carbon from foxtail fruit palm and 2) to study the effect of contact time, adsorbent dosage and initial concentration of dye usage toward the efficiency of the prepared activated carbon. Nitric acid was used as activating agent in this experiment, with impregnation time of overnight and 500 °C of 2.5 hours carbonization. The adsorption capability of foxtail fruit palm activated carbon as activated carbon was determined with the use of a dye called methylene blue. The results showed that 5 g of activated carbon was used to reduce 97.1% of 2 mg/L methylene blue with 150 minutes contact time. This result aligns with the SEM result which indicated that the produce activated carbon is rich with well-developed and irregular size of pores ranging between 1.585 μm to 7.556 μm. This study indicates that activated carbon from foxtail palm fruits could be utilized as an alternative activated carbon to treat dye wastewater.

Treatment of Textile Dye Wastewater by Electrocoagulation Method

2011 ◽  
Vol 281 ◽  
pp. 276-279
Author(s):  
Xin Wang ◽  
Dan Su ◽  
Hai Bo Li
Keyword(s):  
Organic Matter ◽  
Textile Industry ◽  
Industrial Wastewater ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Electrolysis Time ◽  
Organic Matter Degradation ◽  
Study Results ◽  
Raw Wastewater

Electrocoagulation method for textile dye wastewater treatment was investigated in this study. Results show that electrocoagulation can be used powerfully and effectively in organic matter degradation of textile industrial wastewater, where the extent of COD removal and decolorization are achieved about 75.45% and 84.62% after 25 minutes, respectively. pH for textile dye wastewater ascended higher than that of raw wastewater and temperature increased with electrolysis time. GC-MS spectra suggest that organic pollutants in textile dye wastewater are effectively oxidized and decomposed by direct current electrolysis. In addition, the quality of the upper layer liquid after electrolysis nearly meets the criteria of Discharge Standard of Water Pollutants for Dyeing and Finishing of Textile Industry (GB4287-92) of China.

scholarly journals REMOVAL OF POLLUTANTS FROM DISPERSE BLACK DYE WASTEWATER BY MUCILAGE FROM DRAGON FRUIT PEEL

2020 ◽  
Vol 58 (5) ◽  
pp. 613
Author(s):  
Hoang Oanh Thi Le
Keyword(s):  
Textile Industry ◽  
Oxygen Demand ◽  
Settling Time ◽  
Pollutant Removal ◽  
Aluminium Chloride ◽  
Dye Wastewater ◽  
Fruit Peel ◽  
Coagulation And Flocculation ◽  
Dragon Fruit ◽  
Flocculation Process

Apart from the large revenue, the textile industry in general and the dyeing process in particular are releasing huge amounts of wastewater that pollutes the environment and adversely affects human health. Treatment of this type of wastewater by coagulation and flocculation process requires lots of synthetic chemicals, implying a chemical hazard. Thus, this study evaluated the efficacy of mucilage extracted from the peel of dragon fruit (Hylocereus undatus) towards partly substitution of Poly Aluminium Chloride (PAC) used in coagulation and flocculation process for removal of turbidity and other pollutants from disperse black dye wastewater. The effects of pH, settling time, coagulant dosage and mucilage dosage on removal of turbidity, chemical oxygen demand (COD) and color, etc. were analyzed based on Jar-tests. The results showed that the addition of mucilage at 10 mg/L after PAC at 245 mg/L under optimal pH 7 and settling time 40 minutes removed turbidity up to 94.92%. The amount of PAC used was 3-10% less compared to total PAC needed for obtaining equal efficiency when used alone. The pollutant removal by mucilage was also comparable to Polyacrylamide (PAM) – a synthetically organic flocculants.

Novel Stage Decorations-A New Branch of Textile Industry

1910 ◽  
Vol 103 (19) ◽  
pp. 358-358
Author(s):  
Arthur H. J. Keane
Keyword(s):  
Textile Industry

Collective Resource Mobilisation for Economic Survival within the Kurdish and Turkish Communities in London

2016 ◽  
Vol 6 (2) ◽  
pp. 219-239
Author(s):  
Olgu Karan
Keyword(s):  
Small Business ◽  
Textile Industry ◽  
Economic Capital ◽  
Small Business Owners ◽  
Coffee Shop ◽  
Business Ownership ◽  
Economic Survival ◽  
Collective Resource ◽  
Resource Mobilisation ◽  
Depth Interviews

This paper proposes a new conceptual framework in understanding the dynamics within the Kurdish and Turkish (KT) owned firms in London by utilising Charles Tilly’s work concerning collective resource mobilisation. Drawing on 60 in-depth interviews with restaurant, off-licence, kebab-shop, coffee-shop, supermarket, wholesaler owners and various community organisations, the paper sheds light upon the questions of why and how the KT communities in London moved into, and are over represented and why Turkish Cypriots are absent in small business ownership. The re-search illustrates that members of the KT communities aligned in their interests to become small business owners after the demise of textile industry in the midst of 1990s in London. The interest alignment in small business ownership required activation of various forms of capital and transposition of social, cultural and economic capital into one another.

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