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International Journal of New Developments in Engineering and Society, 2019, 3(2); doi: 10.25236/IJNDES.19213.

Study on Optimum Selection of Coagulant in Polluted Water Treatment with Low Temperature and Turbidity Based on Positive Osmosis


Peng Wang1,2, *, Baoyu Gao1, Yan Wang 1, Qian Qi1

Corresponding Author:
Peng Wang

1. Shandong University, Jinan, China
2. Shandong Zhonglian Wuyue Construction Co.,Ltd., Linyi, China
*Corresponding author e-mail: [email protected]


Low temperature and low turbidity water treatment is one of the difficult problems in water supply treatment. Coagulant plays an important role in low temperature and low turbidity water treatment. Its treatment effect will directly affect the operation complexity of subsequent processes. Positive osmosis separation technology is a membrane separation process driven by osmotic pressure difference of solution spontaneously. This process does not require additional operating pressure and has low energy consumption. Moreover, the positive osmosis membrane is lightly polluted and easy to clean after pollution. Therefore, the technology of positive osmosis membrane treatment has become a research hotspot in the field of water treatment. Positive osmosis technology has good application prospects due to its low energy consumption and light pollution. Its future development needs to be transformed from experimental research to practical application. The preparation of excellent FO membrane, the selection and separation of extraction liquid are still positive osmosis. Key core issues in technology research and application. On this basis, the challenges of forward osmosis technology are analyzed. In the future, the preparation of positively permeable membranes should focus on solving the problems of internal concentration polarization caused by membranes and reverse osmosis of the draw solution; the preparation and selection of the draw solution should focus on the draw solution which can reduce the polarization of internal concentration.


Positive osmosis, Low temperature and turbidity, Water treatment; Coagulant

Cite This Paper

Peng Wang, Baoyu Gao, Yan Wang, Qian Qi. Study on Optimum Selection of Coagulant in Polluted Water Treatment with Low Temperature and Turbidity Based on Positive Osmosis. International Journal of New Developments in Engineering and Society (2019) Vol.3, Issue 2: 93-100. https://doi.org/10.25236/IJNDES.19213.


[1] Jiao, R. ,  Xu, H. ,  Xu, W. ,  Yang, X. , &  Wang, D.  (2015). Influence of coagulation mechanisms on the residual aluminum – the roles of coagulant species and mw of organic matter. Journal of Hazardous Materials, vol.290, pp.16-25.
[2] Momeni, M. M. ,  Kahforoushan, D. ,  Abbasi, F. , &  Ghanbarian, S.  (2018). Using chitosan/chpatc as coagulant to remove color and turbidity of industrial wastewater: optimization through rsm design. Journal of Environmental Management, vol.211, pp.347-355.
[3] Liao, Y. ,  Tang, X. ,  Yang, Q. ,  Chen, W. ,  Liu, B. , &  Zhao, C. , et al. (2017). Characterization of an inorganic polymer coagulant and coagulation behavior for humic acid/algae-polluted water treatment: polymeric zinc–ferric–silicate–sulfate coagulant. RSC Adv., vol.7, no 32, pp.19856-19862.
[4] Aboubaraka, A. E. ,  Aboelfetoh, E. F. , &  Ebeid, E. Z. M.  (2017). Coagulation effectiveness of graphene oxide for the removal of turbidity from raw surface water. Chemosphere, vol.181, pp.738-746.
[5] Carvalho Bongiovani, M. ,  Camacho, F. P. ,  Nishi, Letícia,  Ferri Coldebella, P. ,  Cardoso Valverde, K. , &  Vieira, Angélica Marquetotti Salcedo, et al. (2014). Improvement of the coagulation/flocculation process using a combination of\r, moringa oleifera\r, lam with anionic polymer in water treatment. Environmental Technology, vol.35, no 17, pp. 2227-2236.
[6] Ammar, S. H. , &  Akbar, A. S.  (2018). Oilfield produced water treatment in internal-loop airlift reactor using electrocoagulation/flotation technique. Chinese Journal of Chemical Engineering, vol.26, no.4, pp.12-19.
[7] Keogh, M. B. ,  Elmusharaf, K. ,  Borde, P. , &  Mc Guigan, K. G. (2017). Evaluation of the natural coagulant, moringa oleifera, as a pretreatment for sodis in contaminated turbid water. Solar Energy, vol.158, pp.448-454.
[8] Camacho, F. P. , Vânia Serrão Sousa, Rosângela Bergamasco, &  Teixeira, M. R.. (2016). The use of moringa oleifera as a natural coagulant in surface water treatment. Chemical Engineering Journal, vol.226–237, pp. 206–212.
[9] (2015). Coagulation of turbidity and organic matter from leafy-vegetable wash-water using chitosan to improve water disinfectant stability. LWT - Food Science and Technology, vol. 64, no 1, pp.337-343.