Preparation of quaternized chitosan- alginate complex particles and their application in dye removal from waste water

2021 ◽  
Author(s):  
Jing Yuan ◽  
Xin Liu ◽  
Yunqing Ma ◽  
Hao Tian ◽  
Xiaofeng Niu ◽  
...  
Keyword(s):  
Waste Water ◽  
Dye Removal ◽  
Quaternized Chitosan

scholarly journals A Cost-Efficient Charcoal-Based Adsorbent for Waste Water Treatment and Dye Removal

2019 ◽  
Vol 9 (1S4) ◽  
pp. 759-765
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Manihot Esculenta ◽  
Moringa Oleifera ◽  
Carica Papaya ◽  
Dye Removal ◽  
Waste Water Treatment ◽  
Kinetic Studies ◽  
Three Samples ◽  
Cost Efficient

Activated charcoal derived from Moringa oleifera, Manihot esculanta, Carica papaya are efficient for waste water treatment and dye removal. Adsorption techniques are used to remove the non-bio degradable pollutants. The produced carbon was exemplified using Scanning Electron Microscopy and Fourier Infrared spectroscopy. The discoloration rate was higher at an optimum pH of 5 for all three samples and at an adsorbent dosage of 0.02g/100ml of effluent and the equilibrium was obtained in 10 minutes. Thus, the adsorbents have the prospective for realistic applications. Adsorption isotherms was evaluated by the Freundlich, Langmuir isotherms and higher linear attenuation coefficients showed that the experimental data shows a better fit to Freundlich model (R2 = 0.9987) for Manihot esculenta, Langmuir model for Carica papaya and Moringa oleifera (R2 = 0.9931) (R2 = 0.9959). Kinetic studies were also executed for all the adsorbents and for Manihot esculenta data en suite well to pseudo-second order model (R2 = 0.9966), for Carica papaya (R2 = 0.9986) and for Moringa oleifera investigational data en suite well with Pseudo-first order (R2 = 0.9916) respectively.

scholarly journals Response Surface Optimization for Waste Water from Textile Industry

2021 ◽  
Vol 9 (9) ◽  
pp. 165-171
Author(s):  
Jaspreet Kaur
Keyword(s):  
Waste Water ◽  
Response Surface ◽  
Textile Industry ◽  
Dye Removal ◽  
Kinetic Studies ◽  
Cod Removal ◽  
Kinetic Constants ◽  
Response Parameter ◽  
Response Surface Optimization ◽  
Water Response

Abstract: The findings of the study showed that at optimum conditions of the operating parameters i.e., current density = 14.17 mA/cm2 , t = 102 min, and pH = 6.25, 63.41% of COD removal, 90.93% of dye removal and 0.0035 kWh/kg of energy consumption, were observed. Kinetic studies showed that EC based treatment of STW followed first order kinetics and the kinetic constants at 30°C for each response parameter i.e., % COD removal and % dye removal were 0.0205 min-1 and 0.0097 min-1 , respectively. Similarly, at 50°C the kinetic constants for % COD removal and % dye removal were 0.037 min-1 and 0.011 min-1 , respectively. Further, it was also observed that the amount of Al in the treated STW, sludge and scum was observed to be 25.16 mg/l, 0.50778g and 0.06006 g, respectively. Keywords: Waste water, Response Surface plots and optimization

scholarly journals Kinetics of COD and Dye Removal for Waste Water from Textile Industry

2021 ◽  
Vol 9 (9) ◽  
pp. 237-244
Author(s):  
Heena Rani Bindala
Keyword(s):  
Waste Water ◽  
Water Pollution ◽  
Activated Carbon ◽  
Textile Industry ◽  
Dye Removal ◽  
Textile Wastewater ◽  
Electrochemical Treatment ◽  
Efficient Treatment ◽  
Treatment Technologies ◽  
Kinetics Of

Abstract: Water pollution poses serious threats to both the environment and the organisms that depend on their environment for survival. Due to the toxicity from dyes in textile wastewater, there is a dire need for the development of innovative and efficient treatment technologies. In this study treatability studies, using a electrochemical treatment (ECT) method followed by activated carbon (AC) based adsorption. ECT method was studied extensively for the treatment of reactive black dye. Moreover, to understand the practical applicability of ECTs, the findings were optimized for treatment of synthetic textile wastewater (STW).

Malachite green dye, removal from waste water by adsorption

2008 ◽  
Vol 3 (2) ◽  
pp. 279-282
Author(s):  
N. Buvaneswari ◽  
C. Kannan
Keyword(s):  
Waste Water ◽  
Malachite Green ◽  
Dye Removal ◽  
Malachite Green Dye

scholarly journals Active carbon preparation from treads of tire waste for dye removal in waste water

2011 ◽  
Vol 22 (11) ◽  
pp. 2027-2035 ◽  
Author(s):  
Michael R. Nunes ◽  
Giordana M. Perez ◽  
Lara F. Loguercio ◽  
Eliete W. Alves ◽  
Neftali L. V. Carreño ◽  
...  
Keyword(s):  
Waste Water ◽  
Active Carbon ◽  
Dye Removal

scholarly journals Adsorptive Removal of Dyes onto Cost Effective Biomaterials – A Review

2020 ◽  
Vol 9 (1) ◽  
pp. 218-223
Keyword(s):  
Waste Water ◽  
Aquatic Ecosystems ◽  
Industrial Waste ◽  
Large Scale ◽  
Dye Removal ◽  
Low Cost ◽  
Cost Effective ◽  
Experimental Investigations ◽  
Natural Ecosystem ◽  
Industrial Waste Water

A higher percentage of dyes from the industrial waste water are being released into aquatic ecosystems and polluted the natural ecosystem. An abundance of technologies available for removal of Dyes from the industrial waste water are expensive and ineffective. Many of these processes are economically not viable for small and medium scale industries due to large scale applications.Recent Investigational researches have proved that the successful elimination of dyes is obtained using numerous economically available non-conventional adsorbents also. Several experimental investigations on adsorption provedthattremendous treatment for dye removal and can be obtained using cheaply available non-conventional adsorbent.This review is mainly focused to the systematic study on utilizing low cost absorbent of dye removal from the effluents discharged from the industries. The data on economically cheap adsorbents and its properties for removing dyes resulted from the recent literature survey are summarized. Therefore, this review provides the various methods to treat the wastewater using low-price natural sources of adsorption materials, non-viable biomaterials.

Sign in / Sign up

Export Citation Format

Share Document