Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge
In this study, a hybrid forward osmosis–nanofiltration (FO/NF) process was designed for dewatering high nutrient containing sludge and recovering draw solution with minimum energy as well as low fouling. A novel draw solution – EDTA sodium salt – was also systematically studied for dewatering proces...
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2023
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/handle/123456789/3026 https://www.sciencedirect.com/science/article/pii/S0376738813010314 |
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oai:scholar.dlu.edu.vn:123456789-30262023-09-28T06:38:10Z Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge Nguyen Thi Hau Chen, Shiao-Shing Nguyen Cong Nguyen Huang, Kuo Zue Ngo, Huu Hao Guo, Wenshan Forward osmosis; Sludge dewatering; Osmotic pressure; Complexion In this study, a hybrid forward osmosis–nanofiltration (FO/NF) process was designed for dewatering high nutrient containing sludge and recovering draw solution with minimum energy as well as low fouling. A novel draw solution – EDTA sodium salt – was also systematically studied for dewatering process. Results show that using EDTA sodium salt produced higher water flux and lower reverse salt flux when compared to conventional inorganic salt (NaCl) at pH 8. The final sludge concentration reached 32,000mg/L after 16h of operation. Moreover, nutrient compounds in sludge were successfully removed by the FO membrane with a removal efficiency of approximately 97% of NH4+–N, 90% of NO3−–N, 97% of NO2−–N and 99% of PO43−–P, which was attributed to the multi-barrier layers of sludge forming on membrane surface and the steric effect of the FO membrane. The NF recovery of EDTA sodium salt indicated that all NF membranes performed well and TS-80 was the best among the tested membranes. 2023-09-28T06:38:08Z 2023-09-28T06:38:08Z 2014-04-01 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter 0376-7388 https://scholar.dlu.edu.vn/handle/123456789/3026 10.1016/j.memsci.2013.12.068 https://www.sciencedirect.com/science/article/pii/S0376738813010314 en |
| institution |
Thư viện Trường Đại học Đà Lạt |
| collection |
Thư viện số |
| language |
English |
| topic |
Forward osmosis; Sludge dewatering; Osmotic pressure; Complexion |
| spellingShingle |
Forward osmosis; Sludge dewatering; Osmotic pressure; Complexion Nguyen Thi Hau Chen, Shiao-Shing Nguyen Cong Nguyen Huang, Kuo Zue Ngo, Huu Hao Guo, Wenshan Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| description |
In this study, a hybrid forward osmosis–nanofiltration (FO/NF) process was designed for dewatering high nutrient containing sludge and recovering draw solution with minimum energy as well as low fouling. A novel draw solution – EDTA sodium salt – was also systematically studied for dewatering process. Results show that using EDTA sodium salt produced higher water flux and lower reverse salt flux when compared to conventional inorganic salt (NaCl) at pH 8. The final sludge concentration reached 32,000mg/L after 16h of operation. Moreover, nutrient compounds in sludge were successfully removed by the FO membrane with a removal efficiency of approximately 97% of NH4+–N, 90% of NO3−–N, 97% of NO2−–N and 99% of PO43−–P, which was attributed to the multi-barrier layers of sludge forming on membrane surface and the steric effect of the FO membrane. The NF recovery of EDTA sodium salt indicated that all NF membranes performed well and TS-80 was the best among the tested membranes. |
| format |
Journal article |
| author |
Nguyen Thi Hau Chen, Shiao-Shing Nguyen Cong Nguyen Huang, Kuo Zue Ngo, Huu Hao Guo, Wenshan |
| author_facet |
Nguyen Thi Hau Chen, Shiao-Shing Nguyen Cong Nguyen Huang, Kuo Zue Ngo, Huu Hao Guo, Wenshan |
| author_sort |
Nguyen Thi Hau |
| title |
Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| title_short |
Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| title_full |
Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| title_fullStr |
Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| title_full_unstemmed |
Exploration of EDTA sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| title_sort |
exploration of edta sodium salt as novel draw solution in forward osmosis process for dewatering of high nutrient sludge |
| publishDate |
2023 |
| url |
https://scholar.dlu.edu.vn/handle/123456789/3026 https://www.sciencedirect.com/science/article/pii/S0376738813010314 |
| _version_ |
1778792481229373440 |