scholarly journals Impact of Flow Rate in Integration with Solar Radiation on Color and COD Removal in Dye Contaminated Textile Industry Wastewater: Optimization Study

2022 ◽  
Vol 119 (1) ◽  
pp. 419-427
Author(s):  
Pradeep K. Majhi ◽  
Rifat Azam ◽  
Richa Kothari ◽  
Naveen Kumar Arora ◽  
V. V. Tyagi
Keyword(s):  
Solar Radiation ◽  
Flow Rate ◽  
Textile Industry ◽  
Cod Removal ◽  
Optimization Study ◽  
Industry Wastewater ◽  
Color And Cod Removal

Experimental investigation of designed solar parabolic concentrator based desalination system for textile industry wastewater treatment

2021 ◽  
pp. 0958305X2110273
Author(s):  
Atin K Pathak ◽  
VV Tyagi ◽  
Sanjeev Anand ◽  
Richa Kothari
Keyword(s):  
Wastewater Treatment ◽  
Textile Industry ◽  
Average Energy ◽  
Pollutant Removal ◽  
Cod Removal ◽  
Maximum Output ◽  
Efficient Technology ◽  
Solar Desalination ◽  
Hardness Removal ◽  
Industry Wastewater

The escalation in demand for textile products increased the use of fresh water and treatment of wastewater; which escalates the search for suitable and energy-efficient technology for wastewater treatment. Solar assisted technology ( i.e. solar desalination) for the textile industry wastewater treatment is proved to be an affordable technology. The only drawback of solar desalination is its low productivity which is the major hindrance in the global acceptance of the system. In the present study, an ingenious improvement in form of a parabolic concentrator-based solar desalination system (PCB-SDS) is designed to overcome low productivity, and the simultaneous use of source textile industry wastewater for its treatment makes this study more realistic. The performance of the designed system was examined for three different brine depths i.e. 20%, 40%, and 60% for two different processing step i.e. Dyeing and Degumming. System performance was evaluated in terms of energetic, exergetic, pollutant removal, and economic analysis. The maximum output of the system was found to be around 7440 and 8330 mL/day on clear sunny days with textile dyeing wastewater (TDyWW) and textile degumming wastewater (TDgWW) at 60% depth respectively. Daily average energy and exergy efficiency of system varies in the range 39.8–51.9 and 3.6–4.8% respectively. The degumming wastewater shows 85% COD removal, whereas, around 90% of TDS and hardness removal was also recorded. The dyeing processed wastewater showed 80% COD removal efficiency, ≅90% TDS, and hardness removal. The cost per liter of distillate output produced from designed PCB-SDS was found to be 0.014 $/L.

scholarly journals Ozone pre-oxidation of a textile industry wastewater for acute toxicity removal

2013 ◽  
Vol 8 (2) ◽  
pp. 95-102
Keyword(s):  
Acute Toxicity ◽  
Textile Industry ◽  
Transfer Rate ◽  
Cod Removal ◽  
Treated Wastewater ◽  
Colour Removal ◽  
Wastewater Pollution ◽  
Industry Wastewater ◽  
Raw Wastewater ◽  
Absorbance Band

In this work, pre-ozonation for degradation, decolourization and detoxicifying of a raw textile wastewater collected in a textile fininshing industry, Istanbul (Turkey) is investigated. Differing from the previous studies, a low ozone (O3) flow rate (9.6 mg min-1) was applied at original pH of the wastewater. The effect of pH varying from 5 to 11 and the H2O2 dose of 600 mg l-1 on ozone oxidation were also investigated. The acute toxicity of raw and treated wastewater samples were measured using 24 h newborn Daphnia magna. COD, colour in APHA Pt-Co (platin-cobalt) unit and absorbance at 450, 500 and 550 nm wave lengths which were coinciding the peak absorbance band of the raw wastewater were analyzed in treated samples. A 60% of acute toxicity, 92% of and 50% of total COD removal were obtained at original pH of wastewater by applying ozone for 30 min. Absorbed ozone dose was 105 mg l-1 with a ozone transfer rate of 3.5 mg l-1. Varying pH did not improve toxicity removal, however, soluble COD removal increased at 3 and 6% respectively for 9.0 and 11.0 values while colour removal increased (7%) only at 11.0 pH. Adding 600 mg l-1 of H2O2 increased COD removal at 10% after 20 min oxidation. Colour removal increase was more significant in O3/H2O2 oxidation in parallel with the increase in absorbance kinetics. All over results obtained this study are expected to contribute to control the textile industry wastewater pollution and to protect aquatic environment.

scholarly journals Ecotoxicological and health concerns of persistent coloring pollutants of textile industry wastewater and treatment approaches for environmental safety

2021 ◽  
pp. 105012
Author(s):  
Roop Kishor ◽  
Diane Purchase ◽  
Ganesh Dattatraya Saratale ◽  
Rijuta Ganesh Saratale ◽  
Luiz Fernando R. Ferreira ◽  
...  
Keyword(s):  
Textile Industry ◽  
Environmental Safety ◽  
Treatment Approaches ◽  
Health Concerns ◽  
Industry Wastewater

scholarly journals Removal of heavy metals from textile industry wastewater

2021 ◽  
Author(s):  
Recep TÜRKSOY ◽  
Gökhan TERZİOĞLU ◽  
İbrahim Ertuğrul YALÇIN ◽  
Özlem TÜRKSOY ◽  
Göksel DEMİR
Keyword(s):  
Heavy Metals ◽  
Textile Industry ◽  
Removal Of Heavy Metals ◽  
Industry Wastewater
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