Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process

Yu Lian Quan; Bi Qing Shi; Li Jing Yang; Ren Zhi Zhang

doi:10.4028/www.scientific.net/AMR.779-780.1518

Paper Titles

Pulsed SBR Treatment of Municipal Sewage Denitrification and Experimental Research
p.1500

Investigation on Present Status of Environmental Quality of Mt. Longhushan Scenic Area and Analysis on Optimization Measures
p.1505

Potential of Mixotrophic Cultivation of Chlorella sorokiniana for Biodiesel Production
p.1509

Relationship between Phytoplankton and Nutrient Dynamics in the Enclosed Waterbody, Dianchi Lake
p.1514

Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process
p.1518

Research on Regulation Thoughts for Shoal at Confluence of Xinzhou Channel in the Middle Reach of the Yangtze River
p.1522

A Rapid In Situ Monitoring System for the Determination of Total Phosphorus in Waters
p.1526

Distribution of Available S in the Soil Environment of Yunnan Plateau
p.1532

Analysis on Bank Collapse Mechanism of Typical Reaches in Middle and Lower Yangtze River
p.1537

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 779-780Pretreatment of Seawater by PAC/PAM...

Pretreatment of Seawater by PAC/PAM Coagulation-Photocatalytic Oxidation Process

Abstract:

Coagulation-photocatalytic oxidation process was used for pretreatment of simulated seawater, which had moderate turbidity and more organics. The optimal conditions of PAC/PAM coagulation and TiO₂ photocatalytic oxidation were investigated by simple variable method, coagulation and photocatalytic oxidation were combinated under optimal conditions finally. Results showed that when the dosage of polyacrylamide (PAM) and polyaluminium chloride (PAC) was 20mg/L and 0.5 mg/L respectively, the pH of simulated seawater was 8.0, the amount of TiO₂ photocatalyst was 1.8g/L and UV radiation time was 1h, the removal ratio of the turbidity and COD_Mn in simulated seawater was 97.5% and 72% respectively. Synergistic effect between coagulation and photocatalytic oxidation eventually made turbidity and organics in the effluent water meet the requirements of reverse osmosis system.

You might also be interested in these eBooks

Materials, Transportation and Environmental Engineering

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 779-780)

Pages:

1518-1521

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.779-780.1518

Citation:

Cite this paper

Online since:

September 2013

Authors:

Yu Lian Quan, Bi Qing Shi, Li Jing Yang, Ren Zhi Zhang

Keywords:

Desalination, PAC/PAM Coagulation, Photocatalytic Oxidation, Pretreatment

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] C. Fritzmann, J. Löwenberg, T. Wintgens, T. Melin, State-of-the-art of reverse osmosis desalination, Desalination, 216 (2007) 1-76.

DOI: 10.1016/j.desal.2006.12.009

Google Scholar

[2] Anu Matilainen, Niina Lindqvist, Susanna Korhonen, etal. Removal of NOM in the different stages of the water treatment process, Environ. Int., 28 (2002) 457-465.

DOI: 10.1016/s0160-4120(02)00071-5

Google Scholar

[3] Radwan AlRasheed, David J. Cardin, Photocatalytic degradation of humic acid in saline waters: Part 1. Artificial seawater: influence of TiO2, temperature, pH, and air-flow, Environ Sci Pollut Res, 16 (2009) 265-273.

DOI: 10.1016/s0045-6535(03)00097-3

Google Scholar

[4] Esra Erdim, Elif Soyer, Selin Tasiyici, etal. Hybrid photocatalysis/submerged microfiltration membrane system for drinking water treatment, Desal. Wat. Treat., 9 (2009) 165-174.

DOI: 10.5004/dwt.2009.767

Google Scholar

[5] Zongping Wang, Zhe Zhang, Yuejuan Lin, etal. Landfill leachate treatment by a coagulation-photooxidation process, J. Hazard. Mater. , 95 (2002) 153-159.

Google Scholar

[6] S.I. Abou-Elela, M.A. El-Khateeb. Treatment of ink wastewater via heterogeneous photocatalytic oxidation, Desal. Wat. Treat., 7 (2009) 1-5.

Google Scholar

[7] Li Shuang, Yi Shouzhi. Study on pretreatment of seawater and boron removal from seawater by alkalization-flocculation method, J. Tianjin Univ. of Sci. Technol., 26 (2011) 38-42.

Google Scholar

[8] Quan Yulian, Yao Shuxia, Dong Yarong, etal. Study on Nano-TiO2 photocatalytic degradation of paper-making wastewater, Environ. Eng., 29 (2011) 55-57, 97.

Google Scholar

[9] Sun Deshuai, Wu Yude, Liu Xin. Decoloration property of PAM/PAC flocculants on dye wastewater, Environ. Sci. Technol., 33 (2010) 160-163.

Google Scholar

[10] Liu Fanxin, Cui Zuolin, Zhang Zhikun. Photocatalytic degradation of methyl orange by Nano-TiO2 films, Photograph. Sci. Photochem., 21 (2003) 119-125. 3.

Google Scholar