کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8862954 | 1620149 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Integration of coagulation and electro-activated HSO5â to treat pulp and paper wastewater
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
مهندسی محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Integration of coagulation and electro-activated HSO5â to treat pulp and paper wastewater Integration of coagulation and electro-activated HSO5â to treat pulp and paper wastewater](/preview/png/8862954.png)
چکیده انگلیسی
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 Lâ1. Coagulation-treated wastewater by FeCl3 was treated by electro-activated PMS. Under the condition of 0.75 mA cmâ2 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sustainable Environment Research - Volume 27, Issue 5, September 2017, Pages 223-229
Journal: Sustainable Environment Research - Volume 27, Issue 5, September 2017, Pages 223-229
نویسندگان
Nematollah Jaafarzadeh, Farshid Ghanbari, Mahtab Alvandi,