皮革科学与工程 ›› 2022, Vol. 32 ›› Issue (5): 19-23.doi: 10.19677/j.issn.1004-7964.2022.05.004

• 试验研究 • 上一篇    下一篇

O3/H2O2-MBBR-O3/H2O2/UV组合工艺处理制革生化尾水研究

刘德民1, 李军2, 王晴1, 朱宗全1, 王存峰1, 马宏瑞3   

  1. 1.青岛思普润水处理股份有限公司,山东 青岛 266510;
    2.浙江天然城建设计有限公司,浙江 温州 325000;
    3.陕西科技大学环境科学与工程学院,陕西 西安 710021
  • 收稿日期:2022-02-14 出版日期:2022-10-28 上线日期:2022-10-10
  • 作者简介:刘德民(1989-),男,工程师,ldm273507@163.com,主要从事废水深度处理技术研究与产品开发。
  • 基金资助:
    青岛西海岸新区科技攻关“揭榜制”专项; 国家自然基金面上项目(201012033)

Study on Advanced Treatment in Tannery Secondary Effluent by the Combination Process of O3 /H2O2-MBBR-O3 /H2O2/UV

LIU Demin1, LI Jun2, WANG Qing1, ZHU Zongquan1, WANG Cunfeng1, MA Hongrui3   

  1. 1. Qingdao Spring Water Treatment Co. Ltd., Qingdao 266510, China;
    2. Zhejiang Tianran Urban Construction Design Co. Ltd., Wenzhou 325000, China;
    3. School of Environmental Science and Engineering,Shaanxi University of Science & Technology, Xi'an 710021, China
  • Received:2022-02-14 Online:2022-10-28 Published:2022-10-10

摘要: 对O3/H2O2-MBBR(Moving Bed Biofilm Reactor, MBBR)-O3/H2O2/UV组合工艺深度处理制革生化尾水可行性进行了研究,考察了O3及O3/H2O2预氧化对尾水中难降解有机物可生化性、氮组分转化及去除的影响,并将催化臭氧氧化与MBBR相结合,评估组合工艺对CODCr、氨氮、总氮的去除效果。结果表明:与O3氧化相比,O3/H2O2预氧化可显著提高尾水可生化性,氧化后B/C(BOD5/CODCr)比可从0.016提升至0.18。此外O3/H2O2预氧化可使含氮有机物分解为无机氮,有利于强化生化过程中氮的去除。经O3/H2O2-MBBR-O3/H2O2/UV组合工艺中试验证,制革生化尾水经深度处理后出水CODCr、氨氮、总氮的均值分别为38.69 mg/L、1.19 mg/L、11.35 mg/L,去除率分别为83.31%、91.00%、57.00%。

关键词: 制革生化尾水, 难降解有机物, 催化臭氧氧化, 移动床生物膜

Abstract: In this paper, the feasibility of advanced treatment in tannery secondary effluent by O3/H2O2-MBBR (Moving Bed Biofilm Reactor, MBBR)-O3/H2O2/UV combination process was studied. The effects of O3 and O3/H2O2 pre-oxidation on the biodegradability, nitrogen conversion and removal were investigated. Meanwhile, the catalytic ozonation was combined with MBBR, and the removal efficiency of CODCr, ammonia nitrogen and total nitrogen was evaluated. The results showed that O3/H2O2 pre-oxidation can significantly improve the biodegradability of tannery secondary effluent compared with O3 pre-oxidation. The ratio of B/C (BOD5/CODCr) increased from 0.016 to 0.18 after O3/H2O2 pre-oxidation. Moreover, the O3/H2O2 pre-oxidation can transform organic nitrogen into inorganic nitrogen, and enhanced nitrogen removal in biochemical process. Through the pilot test of O3/H2O2-MBBR-O3/H2O2/UV combined process, the average CODCr, ammonia nitrogen and total nitrogen of the effluent were 38.69 mg/L, 1.19 mg/L and 11.35 mg/L, respectively. The removal rates were 83.31%, 91.00% and 57.00% respectively.

Key words: tannery secondary effluent, refractory organic matter, catalytic ozonation, moving bed biofilm reactor

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