Competitive adsorption and desorption of arsenate, vanadate, and molybdate onto the low-cost adsorbent materials alum water treatment sludge and bauxite

2018 ◽  
Vol 25 (34) ◽  
pp. 34053-34062 ◽  
Author(s):  
Tao Hua ◽  
Richard J. Haynes ◽  
Ya-Feng Zhou
Keyword(s):  
Water Treatment ◽  
Competitive Adsorption ◽  
Low Cost ◽  
Water Treatment Sludge ◽  
Adsorption And Desorption ◽  
Adsorbent Materials

Low-cost ceramic membrane made from alumina- and silica-rich water treatment sludge and its application to wastewater filtration

2020 ◽  
Vol 40 (15) ◽  
pp. 5942-5950 ◽  
Author(s):  
Rajaa Mouratib ◽  
Brahim Achiou ◽  
Mohammed El Krati ◽  
Saad Alami Younssi ◽  
Soufiane Tahiri
Keyword(s):  
Water Treatment ◽  
Ceramic Membrane ◽  
Low Cost ◽  
Water Treatment Sludge ◽  
Wastewater Filtration

Orthophosphate removal from aqueous solutions using drinking-water treatment sludge

2013 ◽  
Vol 68 (8) ◽  
pp. 1757-1762 ◽  
Author(s):  
Krzysztof Piaskowski
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Low Cost ◽  
Drinking Water Treatment ◽  
Cost Effective ◽  
Underground Water ◽  
Iron Hydroxides ◽  
Water Treatment Sludge ◽  
Main Component ◽  
Static Conditions

Drinking-water treatment sludge (DWTS) is a by-product generated during the production of drinking water where iron hydroxides are the main component of the sludge. The aim of the study presented here was to determine the effectiveness of using ferric sludge from two underground water treatment stations to remove orthophosphates from a model solution. The analyses were performed in static conditions. The sludge was dosed in a dry and suspended form. Using sludge dried at room temperature and preparing the suspension again proved to be much less effective in orthophosphate removal than using a suspension brought directly from the station. An increase in process effectiveness with a decreasing pH was observed for all the analysed sludge. Due to the low cost and high capability, DWTS has the potential to be utilised for cost-effective removal of phosphate from wastewater.

Integration of water treatment sludge and agriculture waste as low-cost adsorbent for remazol red dye removal

2021 ◽  
Vol 226 ◽  
pp. 408-418
Author(s):  
Sofiah Hamzah ◽  
Ng Boon Swan ◽  
Nurul Ashraf Razali ◽  
Nurul Aqilah Mohammad ◽  
Nazaitulshila Rasit ◽  
...  
Keyword(s):  
Water Treatment ◽  
Dye Removal ◽  
Low Cost ◽  
Water Treatment Sludge ◽  
Agriculture Waste ◽  
Remazol Red ◽  
Red Dye

scholarly journals Rice husk templated water treatment sludge as low cost dye and metal adsorbent

2017 ◽  
Vol 26 (3) ◽  
pp. 661-668 ◽  
Author(s):  
Nasser H. Shalaby ◽  
Emad M.M. Ewais ◽  
Riyad M. Elsaadany ◽  
Adel Ahmed
Keyword(s):  
Water Treatment ◽  
Rice Husk ◽  
Low Cost ◽  
Water Treatment Sludge

Application of water treatment sludge as a low-cost and eco-friendly catalyst in the biodiesel production via fatty acids esterification: Process optimization

Energy ◽  
2020 ◽  
Vol 213 ◽  
pp. 118824 ◽  
Author(s):  
Wanison A.G. Pessoa Junior ◽  
Mitsuo L. Takeno ◽  
Francisco X. Nobre ◽  
Silma de S. Barros ◽  
Ingrity S.C. Sá ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Water Treatment ◽  
Process Optimization ◽  
Low Cost ◽  
Biodiesel Production ◽  
Water Treatment Sludge

Adsorption of methylene blue from aqueous solutions using water treatment sludge modified with sodium alginate as a low cost adsorbent

2016 ◽  
Vol 75 (2) ◽  
pp. 281-295 ◽  
Author(s):  
Hamid Poormand ◽  
Mostafa Leili ◽  
Marzieh Khazaei
Keyword(s):  
Methylene Blue ◽  
Water Treatment ◽  
Aqueous Solutions ◽  
Sodium Alginate ◽  
Contact Time ◽  
Low Cost ◽  
Drinking Water Treatment ◽  
Water Treatment Sludge ◽  
Maximum Sorption Capacity ◽  
Adsorbent Dose

In this research, aluminum-based drinking water treatment sludge is used as a starting material and immobilized by sodium alginate to develop low cost adsorbent for the removal of methylene blue (MB) from aqueous solutions. The studied variables included pH, adsorbent dose, initial MB concentration and contact time. Characteristics of the adsorbent were also studied using scanning electron microscopy and Fourier transform infrared spectroscopy (FTIR). It was revealed from kinetic tests that removal efficiency of MB was 88.5% under the optimum conditions of pH 8, initial MB concentration of 50 mg/L, contact time of 60 min, and adsorbent dose of 0.3 g/L. The oxygen functional groups such as –OH, C–O–C and C=O were found on the surface of developed adsorbent by FTIR. In addition, the adsorption data fitted well the Langmuir adsorption model with the maximum sorption capacity of 909.1 mg/g, and followed the pseudo-second-order kinetics. Findings of this study indicate that the prepared adsorbent is promising for further development of an effective and economical adsorbent material in the near future.

Methylene Blue Removal from Aqueous Solution by Adsorption on Nitric Acid Modified Water Treatment Sludge

2014 ◽  
Vol 931-932 ◽  
pp. 251-255
Author(s):  
Thanatcha Potiya ◽  
Peerakarn Banjerdkij ◽  
Nuttaporn Pimpha
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Nitric Acid ◽  
Water Treatment ◽  
Low Cost ◽  
Water Treatment Sludge ◽  
Experiment System ◽  
Initial Ph ◽  
Positively Charged ◽  
Maximum Removal

Nitric acid modified water treatment sludge (NS) was used as an adsorbent for methylene blue (MB) removal from aqueous solution in a batch experiment system. Surface area and pore volume were characterized by BET-N2 method. Zeta potential measurements of the NS showed a negatively charge which has the potential to attract positively charged molecules. The effect of initial MB concentration and initial pH solution were investigated. When the initial MB concentration was increased, the percentage of MB removal decreased accordingly while the amount of adsorbed MB on NS at equilibrium time (qe) increased. For the effect of initial pH solution, the adsorption of MB was increased with increase in pH. The maximum removal was observed at pH 11. The result indicates that NS can be used as low cost adsorbent in wastewater treatment for cationic dye removal.

Synthesis of Zeolite from Water Treatment Sludge and its Application to the Removal of Brilliant Green

2018 ◽  
Vol 766 ◽  
pp. 111-116
Author(s):  
Khemmakorn Gomonsirisuk ◽  
Kotchakorn Yotyiamkrae ◽  
Malee Prajuabsuk ◽  
Saisamorn Lumlong ◽  
Pharit Kamsri ◽  
...  
Keyword(s):  
Water Treatment ◽  
Brilliant Green ◽  
Low Cost ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Adsorption Efficiency ◽  
Water Treatment Sludge ◽  
Aged Material ◽  
Adsorption Kinetics And Isotherm ◽  
Sem Analyses

In this work, water treatment sludge from the water treatment plant was used to synthesize zeolite material. In the synthesis, the washed sludge was mixed with sodium hydroxide and then heated at 600ºC for 6 h. After agitation, the aged material was heated in a water bath at 80ºC for different period of aging times. Based on XRD and SEM analyses, Faujasite zeolite was obtained. Then, the feasibility of employing the obtained zeolite as adsorbent for Brilliant Green (BG) removal was investigated. The effect of adsorbent dosage and contact time were examined. Adsorption kinetics and isotherm were also evaluated. The results showed that the obtained zeolite has potential for applying as low-cost adsorbent for the removal of BG from wastewater with higher than 97% adsorption efficiency.

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