Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing
Salicylhydroxamic acid is an excellent collector of oxidizing ore, and it has an efficient collection performance for tungsten molybdenum ore. However, the utilization ratio of salicylhydroxamic acid is relatively low in the flotation process, and a large amount of flotation wastewater discharged mi...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2020/7125874 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850105223048069120 |
|---|---|
| author | Liping Zhang Xin Zhang Jun Xiang Jingwen Xue Xuejing Song |
| author_facet | Liping Zhang Xin Zhang Jun Xiang Jingwen Xue Xuejing Song |
| author_sort | Liping Zhang |
| collection | DOAJ |
| description | Salicylhydroxamic acid is an excellent collector of oxidizing ore, and it has an efficient collection performance for tungsten molybdenum ore. However, the utilization ratio of salicylhydroxamic acid is relatively low in the flotation process, and a large amount of flotation wastewater discharged might cause damage to the water environment. This study mainly compared the effects of natural sunlight degradation, ozonation, and Fenton oxidation processes on the treatment of salicylchydroxamic acid wastewater from W–Mo mineral processing. The results showed after 30 hours degradation by natural sunlight, the CODcr removal rate of wastewater was only 25.99%. When the initial pH was 8, the dosage of O3 was 1.3 mg/L and the reaction time was 60 minutes; O3 oxidation could remove 40.37% CODcr from wastewater, and the BOD5/CODcr value increased to higher than 0.3 after 15 min reaction. Under the Fenton oxidation conditions such as initial pH 3, H2O2 dosage 0.96 g/L, and the molar ratio of H2O2 to Fe2+ 2 : 1, 90.43% CODcr could be removed from flotation wastewater after 90 min reaction, and the BOD5/CODcr value was obviously improved. Fenton oxidation was a high efficient processing technology for salicylhydroxamic acid wastewater, and the effluent could meet the discharge and reuse emission standard requirements in China. |
| format | Article |
| id | doaj-art-3d5b767b2bed4ddbb1b134fce7434165 |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-3d5b767b2bed4ddbb1b134fce74341652025-08-20T02:39:09ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/71258747125874Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral ProcessingLiping Zhang0Xin Zhang1Jun Xiang2Jingwen Xue3Xuejing Song4School of Chemical and Environmental Engineering, China University of Mining ＆ Technology, Beijing, Beijing, ChinaSchool of Chemical and Environmental Engineering, China University of Mining ＆ Technology, Beijing, Beijing, ChinaSchool of Chemical and Environmental Engineering, China University of Mining ＆ Technology, Beijing, Beijing, ChinaSchool of Chemical and Environmental Engineering, China University of Mining ＆ Technology, Beijing, Beijing, ChinaSchool of Chemical and Environmental Engineering, China University of Mining ＆ Technology, Beijing, Beijing, ChinaSalicylhydroxamic acid is an excellent collector of oxidizing ore, and it has an efficient collection performance for tungsten molybdenum ore. However, the utilization ratio of salicylhydroxamic acid is relatively low in the flotation process, and a large amount of flotation wastewater discharged might cause damage to the water environment. This study mainly compared the effects of natural sunlight degradation, ozonation, and Fenton oxidation processes on the treatment of salicylchydroxamic acid wastewater from W–Mo mineral processing. The results showed after 30 hours degradation by natural sunlight, the CODcr removal rate of wastewater was only 25.99%. When the initial pH was 8, the dosage of O3 was 1.3 mg/L and the reaction time was 60 minutes; O3 oxidation could remove 40.37% CODcr from wastewater, and the BOD5/CODcr value increased to higher than 0.3 after 15 min reaction. Under the Fenton oxidation conditions such as initial pH 3, H2O2 dosage 0.96 g/L, and the molar ratio of H2O2 to Fe2+ 2 : 1, 90.43% CODcr could be removed from flotation wastewater after 90 min reaction, and the BOD5/CODcr value was obviously improved. Fenton oxidation was a high efficient processing technology for salicylhydroxamic acid wastewater, and the effluent could meet the discharge and reuse emission standard requirements in China.http://dx.doi.org/10.1155/2020/7125874 |
| spellingShingle | Liping Zhang Xin Zhang Jun Xiang Jingwen Xue Xuejing Song Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing Journal of Chemistry |
| title | Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing |
| title_full | Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing |
| title_fullStr | Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing |
| title_full_unstemmed | Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing |
| title_short | Study on Treatment of Salicylhydroxamic Acid Wastewater from Tungsten Molybdenum Mineral Processing |
| title_sort | study on treatment of salicylhydroxamic acid wastewater from tungsten molybdenum mineral processing |
| url | http://dx.doi.org/10.1155/2020/7125874 |
| work_keys_str_mv | AT lipingzhang studyontreatmentofsalicylhydroxamicacidwastewaterfromtungstenmolybdenummineralprocessing AT xinzhang studyontreatmentofsalicylhydroxamicacidwastewaterfromtungstenmolybdenummineralprocessing AT junxiang studyontreatmentofsalicylhydroxamicacidwastewaterfromtungstenmolybdenummineralprocessing AT jingwenxue studyontreatmentofsalicylhydroxamicacidwastewaterfromtungstenmolybdenummineralprocessing AT xuejingsong studyontreatmentofsalicylhydroxamicacidwastewaterfromtungstenmolybdenummineralprocessing |