Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater
Pulp and paper wastewater (PPW) is classified as complex wastewater that contains high concentrations of recalcitrant pollutants. In this study, the integration of coagulation process and electro-activated peroxymonosulfate (PMS) were tested to treat PPW. FeCl3, aluminum sulfate and poly aluminum ch...
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| Format: | Article |
| Language: | English |
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BMC
2017-09-01
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| Series: | Sustainable Environment Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468203916302862 |
| _version_ | 1819225152062226432 |
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| author | Nematollah Jaafarzadeh Farshid Ghanbari Mahtab Alvandi |
| author_facet | Nematollah Jaafarzadeh Farshid Ghanbari Mahtab Alvandi |
| author_sort | Nematollah Jaafarzadeh |
| collection | DOAJ |
| description | Pulp and paper wastewater (PPW) is classified as complex wastewater that contains high concentrations of recalcitrant pollutants. In this study, the integration of coagulation process and electro-activated peroxymonosulfate (PMS) were tested to treat PPW. FeCl3, aluminum sulfate and poly aluminum chloride were examined for chemical oxygen demand (COD) removal from PPW. Amongst the coagulants, FeCl3 showed higher performance compared to other coagulants in which 55% of COD was removed under the conditions of natural pH of 6.9 and FeCl3 dosage of 100 mg L−1. Coagulation-treated wastewater by FeCl3 was treated by electro-activated PMS. Under the condition of 0.75 mA cm−2 current density, 6.0 mM PMS and 60 min reaction time, 53% of COD was further eliminated. To compare with electro-Fenton, electro-activated PMS provided higher COD removal and specific oxidant efficiency. Integration of coagulation (FeCl3) and electro-activated PMS enhanced the biodegradability of PPW based on biochemical oxygen demand/COD index. The results showed that integrated chemical and electrochemical processes can be used as a pretreatment for biological process. |
| first_indexed | 2024-12-23T10:05:03Z |
| format | Article |
| id | doaj.art-7b43b5216c64480da26d55096df917e4 |
| institution | Directory Open Access Journal |
| issn | 2468-2039 |
| language | English |
| last_indexed | 2024-12-23T10:05:03Z |
| publishDate | 2017-09-01 |
| publisher | BMC |
| record_format | Article |
| series | Sustainable Environment Research |
| spelling | doaj.art-7b43b5216c64480da26d55096df917e42022-12-21T17:51:06ZengBMCSustainable Environment Research2468-20392017-09-0127522322910.1016/j.serj.2017.06.001Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewaterNematollah Jaafarzadeh0Farshid Ghanbari1Mahtab Alvandi2Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 61357-15794, IranDepartment of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 61357-15794, IranStudent Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 61357-15794, IranPulp and paper wastewater (PPW) is classified as complex wastewater that contains high concentrations of recalcitrant pollutants. In this study, the integration of coagulation process and electro-activated peroxymonosulfate (PMS) were tested to treat PPW. FeCl3, aluminum sulfate and poly aluminum chloride were examined for chemical oxygen demand (COD) removal from PPW. Amongst the coagulants, FeCl3 showed higher performance compared to other coagulants in which 55% of COD was removed under the conditions of natural pH of 6.9 and FeCl3 dosage of 100 mg L−1. Coagulation-treated wastewater by FeCl3 was treated by electro-activated PMS. Under the condition of 0.75 mA cm−2 current density, 6.0 mM PMS and 60 min reaction time, 53% of COD was further eliminated. To compare with electro-Fenton, electro-activated PMS provided higher COD removal and specific oxidant efficiency. Integration of coagulation (FeCl3) and electro-activated PMS enhanced the biodegradability of PPW based on biochemical oxygen demand/COD index. The results showed that integrated chemical and electrochemical processes can be used as a pretreatment for biological process.http://www.sciencedirect.com/science/article/pii/S2468203916302862Pulp and paper wastewaterCoagulationPeroxymonosulfateSulfate radicalBiodegradability improvement |
| spellingShingle | Nematollah Jaafarzadeh Farshid Ghanbari Mahtab Alvandi Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater Sustainable Environment Research Pulp and paper wastewater Coagulation Peroxymonosulfate Sulfate radical Biodegradability improvement |
| title | Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater |
| title_full | Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater |
| title_fullStr | Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater |
| title_full_unstemmed | Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater |
| title_short | Integration of coagulation and electro-activated HSO5− to treat pulp and paper wastewater |
| title_sort | integration of coagulation and electro activated hso5 to treat pulp and paper wastewater |
| topic | Pulp and paper wastewater Coagulation Peroxymonosulfate Sulfate radical Biodegradability improvement |
| url | http://www.sciencedirect.com/science/article/pii/S2468203916302862 |
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