Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process
In this paper, the circulating cooling wastewater was treated by chemical coagulation process through adding NaOH/Na2CO3.The effect of NaOH and Na2CO3 dose on removal of scale ions, such as Ca2+, Mg2+, Ba2+, Sr2+, SiO2, was studied and the removal mechanism was discussed. The results showed that the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2018-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://doi.org/10.1051/e3sconf/20183802004 |
| _version_ | 1818919934765301760 |
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| author | Du Song Jin Wenbiao Duan Feng |
| author_facet | Du Song Jin Wenbiao Duan Feng |
| author_sort | Du Song |
| collection | DOAJ |
| description | In this paper, the circulating cooling wastewater was treated by chemical coagulation process through adding NaOH/Na2CO3.The effect of NaOH and Na2CO3 dose on removal of scale ions, such as Ca2+, Mg2+, Ba2+, Sr2+, SiO2, was studied and the removal mechanism was discussed. The results showed that the increase of NaOH dose was beneficial to the removal of above-mentioned scale ions. When NaOH was only added, the removal efficiency of Ca2+, Mg2+, Ba2+, Sr2+, SiO2 was 86.3%, 91.6%, 86.5%, 58.1%, 84.2%, respectively. When 680 mg/L of NaOH and 300 mg/L of Na2CO3 were added, and the effluent pH was above 11.2, the removal efficiency of Ca2+, Mg2+ was 95.8% and 89.4%, respectively, and the concentration of Ca2+and Mg2+ was below 20 mg/L, which met the target of wastewater treatment. Finally the possible removal mechanism of Ca2+, Mg2+, Ba2+, Sr2+and SiO2 was discussed. |
| first_indexed | 2024-12-20T01:13:45Z |
| format | Article |
| id | doaj.art-849f89bde52e495195443ce015167fbe |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-20T01:13:45Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-849f89bde52e495195443ce015167fbe2022-12-21T19:58:37ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01380200410.1051/e3sconf/20183802004e3sconf_icemee2018_02004Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation ProcessDu SongJin WenbiaoDuan FengIn this paper, the circulating cooling wastewater was treated by chemical coagulation process through adding NaOH/Na2CO3.The effect of NaOH and Na2CO3 dose on removal of scale ions, such as Ca2+, Mg2+, Ba2+, Sr2+, SiO2, was studied and the removal mechanism was discussed. The results showed that the increase of NaOH dose was beneficial to the removal of above-mentioned scale ions. When NaOH was only added, the removal efficiency of Ca2+, Mg2+, Ba2+, Sr2+, SiO2 was 86.3%, 91.6%, 86.5%, 58.1%, 84.2%, respectively. When 680 mg/L of NaOH and 300 mg/L of Na2CO3 were added, and the effluent pH was above 11.2, the removal efficiency of Ca2+, Mg2+ was 95.8% and 89.4%, respectively, and the concentration of Ca2+and Mg2+ was below 20 mg/L, which met the target of wastewater treatment. Finally the possible removal mechanism of Ca2+, Mg2+, Ba2+, Sr2+and SiO2 was discussed.https://doi.org/10.1051/e3sconf/20183802004 |
| spellingShingle | Du Song Jin Wenbiao Duan Feng Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process E3S Web of Conferences |
| title | Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process |
| title_full | Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process |
| title_fullStr | Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process |
| title_full_unstemmed | Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process |
| title_short | Research on The Removal of Scale Ions from Circulating Cooling Wastewater by Chemical Coagulation Process |
| title_sort | research on the removal of scale ions from circulating cooling wastewater by chemical coagulation process |
| url | https://doi.org/10.1051/e3sconf/20183802004 |
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