| 第 50 卷第 2 期 |  | Vol. 50 No. 2 | | 2020 年 4 月 | Apr 2020 |
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所屬欄目：安全與環(huán)保
UV-Fenton／電催化氧化法處理皮蛋廢水的研究 |
| 李 明，唐益洲，汪鑫龍
（廣東海瑞環(huán)�？萍加邢薰�，廣東 東莞 523808） |
| 摘 要：研究了UV-Fenton／電催化氧化法處理皮蛋廢水工藝，并采用單因素實(shí)驗優(yōu)化了關(guān)鍵工藝參數。結果表明，在初始pH 值為4.0、20 mL H2O2、反應時(shí)間120 min的優(yōu)化條件下，UV-Fenton出水COD為249.59 mg·L-1。催化劑5次重復使用實(shí)驗表明，UV-Fenton的鐵系催化劑可重復使用，且反應不再產(chǎn)生污泥。NH3-N由171.28 mg·L-1升至234.62 mg·L-1，重金屬與NH3-N的螯合造成UV-Fenton對Cu2+、Zn2+去除效果不佳。電催化氧化的優(yōu)化條件：pH=8.0、電流密度15 mA·cm-2，出水COD、NH3-N、Cu2+和Zn2+分別為55.91 mg·L-1、2.18 mg·L-1、0.17 mg·L-1和0.35 mg·L-1。最終出水達到《污水綜合排放標準》（GB8978-1996）排放標準。 |
| 關(guān)鍵詞：皮蛋廢水；UV-Fenton；電催化氧化；COD；氨氮 |
| 中圖分類(lèi)號：X56 文獻標識碼：A 文章編號：1009-9212（2020）02-0058-06 |
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| Study on the Preserved Egg Wastewater Treatment by UV-Fenton/Electrocatalytical Oxidation Process |
| LI Ming, TANG Yi-zhou, WANG Xin-long
(Guangdong Hai Rui Environmental Protection Technology Co.,Ltd., Dongguan 523808, China) |
| Abstract：UV-Fenton/electrocatalytic oxidation process was used to treat the preserved egg wastewater, and the key process parameters were optimized by single factor experimental method. The results showed that under the optimal conditions including initial pH of 4.0, 20 mL of H2O2 and reaction time of 120 min, the COD of UV-Fenton effluent was 249.59 mg·L-1. The catalyst reuse experiments showed that iron catalyst of UV-Fenton could be reused, and no sludge was produced in the reaction. NH3-N increased from 171.28 mg·L-1 to 234.62 mg·L-1, the chelation of heavy metals with NH3-N results in poor removal of Cu2+ and Zn2+ by UV-Fenton. The optimal conditions of electrocatalitical oxidation were as followings: a pH value of 8.0, a current density of 15 mA·cm-2, COD, NH3-N, Cu2+ and Zn2+ of the effluent were 55.91 mg·L-1, 2.18 mg·L-1, 0.17 mg·L-1 and 0.35 mg·L-1, respectively. The final effluent meets the discharge standard of "Integrated wastewater discharge standard" (GB 8978-1996)． |
| Key words：preserved egg wastewater; UV-Fenton; electrocatalytical oxidation; COD; ammonia-nitrogen |
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作者簡(jiǎn)介：李 明（1987-），男，湖南常德人，博士，工程師，研究方向：廢水處理與水資源循環(huán)利用技術(shù)（E-mail：lm6313@163.com）。
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收稿日期：2020-02-14
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