scholarly journals Study on the preparation of polymer-grafted coir fibre based adsorbent and its application to remove a reactive dye from aqueous solution

2014 ◽  
Vol 48 (4) ◽  
pp. 271-280 ◽  
Author(s):  
SK Ray ◽  
P Saha ◽  
HP Nur ◽  
D Saha ◽  
AI Hoque ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Treatment Plant ◽  
Cost Effective ◽  
Reactive Dye ◽  
Effluent Treatment ◽  
Sodium Chlorite ◽  
Reactive Orange 16 ◽  
Coir Fibre ◽  
Bleaching Procedure ◽  
Reactive Orange

Holocellulose was separated from Coir fibre by Sodium chlorite bleaching procedure. The adsorbent was synthesized by graft-copolymerization of acrylamide onto separated cellulose using potassium persulfate as a free radical initiator. Grafting percentage and grafting efficiency were measured and found to be 74.5 and 58% respectively. Prepared adsorbent was characterized by applying Fourier Transform- Infrared Spectrophotometer, Thermogravimetric/Differential Thermal Analyzer and Scanning Electron Microscope. Adsorbent prepared from holocellulose was successfully used at different adsorbent dosage, contact time, initial dye concentration and temperature to remove "Reactive Orange-16", a reactive dye from aqueous solution. Ultraviolet-Visible Spectrophotometric measurement of the dye in untreated and treated solutions showed that 0.2 g Holocellulose and Polyacrylamide-grafted holocellulose can remove 42% and 72% of Reactive Orange-16 dye from its 10 ppm aqueous solution within 1 hrs respectively. It may be proposed that Polyacrylamide-grafted holocellulose can be used in a traditional Textile Effluent Treatment Plant (ETP) as a cost effective adsorbent/alternative for decreasing the concentration of the reactive dye in the effluent. DOI: http://dx.doi.org/10.3329/bjsir.v48i4.18277 Bangladesh J. Sci. Ind. Res. 48(4), 271-280, 2013

scholarly journals Ultrafiltration, a cost-effective solution for treating surface water to potable standard

2020 ◽  
Vol 15 (2) ◽  
pp. 426-436
Author(s):  
Mariela Cuartucci
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Cost Effective ◽  
Effluent Treatment ◽  
San Juan ◽  
Special Focus ◽  
Reservoir Water ◽  
Emerging Pollutant

Abstract Ultrafiltration is increasingly popular in many types of water and effluent treatment, and has been developed substantially since the turn of the century, especially for waters that are difficult to treat – e.g. surface-, waste- and sea-waters, among others. This paper is a case of study of the San Juan Reservoir Water Treatment Plant in Chongon, Ecuador, which uses ultrafiltration for water treatment. The treatment process is described with special focus on the use of ultrafiltration as a cost-effective surface water treatment. San Juan Reservoir suffers from high bacterial loads, turbidity levels and color, and the seasonal presence of algae (cyanobacteria). The advantages of ultrafiltration over conventional treatment are highlighted, as well as the technology's potential for micro-plastics removal. Micro-plastics are an emerging pollutant that has recently gained importance in drinking water treatment.

scholarly journals Removal of Reactive Orange 16 Dye from Aqueous Solution by Using Modified Kenaf Core Fiber

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Maytham Kadhim Obaid ◽  
Luqman Chuah Abdullah ◽  
Intidhar Jabir Idan
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Correlation Coefficients ◽  
Maximum Adsorption Capacity ◽  
Trimethylammonium Chloride ◽  
Order Kinetic ◽  
Kenaf Core ◽  
Reactive Orange 16 ◽  
Core Fiber ◽  
Reactive Orange

Evaluated removal of reactive orange 16 (RO16) dye from aqueous solution was studied in batch mode by using kenaf core fiber as low-cost adsorbents. In this attempt, kenaf core fiber with size 0.25–1 mm was treated by using (3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHMAC) as quaternization agent. Then effective parameters include adsorbent dose, pH, and contact time and initial dye concentration on adsorption by modified kenaf core fiber was investigated. In addition, isotherms and kinetics adsorption studies were estimated for determination of the equilibrium adsorption capacity and reactions dynamics, respectively. Results showed that the best dose of MKCF was 0.1 g/100 mL, the maximum removal of RO16 was 97.25 at 30°C, pH = 6.5, and agitation speed was 150 rpm. The results also showed that the equilibrium data were represented by Freundlich isotherm with correlation coefficientsR2=0.9924, and the kinetic study followed the pseudo-second-order kinetic model with correlation coefficientsR2=0.9997forCo=100 mg/L. Furthermore, the maximum adsorption capacity was 416.86 mg/g. Adsorption through kenaf was found to be very effective for the removal of the RO16 dye.

Application of Aqai Stalks As Biosorbents for the Removal of the Dyes Reactive Black 5 and Reactive Orange 16 from Aqueous Solution

2011 ◽  
Vol 56 (5) ◽  
pp. 1857-1868 ◽  
Author(s):  
Natali F. Cardoso ◽  
Eder C. Lima ◽  
Tatiana Calvete ◽  
Isis S. Pinto ◽  
Camila V. Amavisca ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Reactive Black 5 ◽  
Reactive Orange 16 ◽  
Reactive Orange

scholarly journals Performance of a UASB Effluent Treatment Plant Treating Malt Ingredient Manufacturing Wastewater

2017 ◽  
Vol 6 (2) ◽  
pp. 198 ◽  
Author(s):  
Ryland Cairns ◽  
Paul Mead
Keyword(s):  
Treatment Plant ◽  
High Strength ◽  
Cost Effective ◽  
Full Scale ◽  
Effluent Treatment ◽  
Operational Performance ◽  
Organic Loading Rate ◽  
Anaerobic Sludge ◽  
Effluent Treatment Plant ◽  
Wide Range

Anaerobic Digestion has gained popularity in recent years due to its significant contribution towards achieving waste management and renewable energy targets. One particular technology that has been widely used in the treatment of high strength organic wastewaters across a wide range of industries is upflow anaerobic sludge blankets (UASBs). A malt ingredients manufacturing factory has successfully applied this technology as a cost effective way to treat their high strength effluent, however unlike other industries there is a lack of research regarding the wastewater characterisation or UASB performance at either lab or full scale. This paper aims to address this gap in knowledge and provide information on both the wastewater composition and on the ability of a full-scale mesophilic UASB to treat it over a period of 638 days. Analysis of the wastewater revealed that the manufacture of malt ingredients produces a high strength effluent, which fits within the realms of previously documented wastewaters despite not sharing a similar characterisation profile. Mesophilic UASB has been show to be an effective and robust technology option for the treatment of this type of wastewater displaying steady operational performance even when conditions were in excess of the design limit. Due to the robust operational performance of the plant the main factor limiting total methane production was shown to be the organic loading rate. 

scholarly journals Recycling of TiO2 containing waste and utilization by photocatalytic degradation of a reactive dye solution

2020 ◽  
Author(s):  
Zeynep Bilici ◽  
Raouf Bouchareb ◽  
Tuba Sacak ◽  
H. Cengiz Yatmaz ◽  
Nadir Dizge
Keyword(s):  
Photocatalytic Oxidation ◽  
Manufacturing Industry ◽  
Annealing Temperature ◽  
Raw Materials ◽  
Value Added ◽  
Reactive Dye ◽  
Reactive Orange 16 ◽  
Reactive Orange ◽  
Day By Day ◽  
Value Added Products

Abstract Recently, the utilization of wastes, recovery of high value-added products from waste, and their use as raw materials in other industries with the logic of industrial symbiosis has an important issue day by day. In this study, removal efficiency of Reactive Orange 16 (RO16) dye from aqueous solution was studied using TiO2 catalyst recycled from an industrial waste effluent. The recycling of TiO2 waste was acquired from a paints manufacturing industry by sintering the TiO2 containing waste. The catalyst usability of TiO2 containing powder was then investigated in the removal of RO16 dye by photocatalytic oxidation process. In photocatalytic oxidation studies, TiO2/UV and TiO2/UV/H2O2 processes were investigated, where the effect of annealing temperature, the effect of H2O2 concentration, the adsorption and photocatalytic effects on RO16 dye removal were studied. The results showed that 100% RO16 removal was obtained for the 10 mg/L initial RO16 concentration using TiO2 (1 g/L)/UV. At high initial RO16 concentration (50 mg/L), 100% RO16 removal was achieved by adding 10 mM H2O2.

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