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Pilot-scale multi-level biological contact oxidation system on the treatment of high concentration poultry manure wastewater

文献类型： 外文期刊

作者： Zheng, Tianlong 1 ; Li, Peng 2 ; Ma, Xiaoyu 3 ; Sun, Xiaohong 4 ; Wu, Chuanfu 3 ; Wang, Qunhui 3 ; Gao, Ming 3 ;

作者机构： 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, 18 Shuangqing Rd, Beijing 100085, Peoples R China

2.Xinkai Water Environm Investment Co Ltd, Zhongguancun Technol Pk, Beijing 101101, Peoples R China

3.Univ Sci & Technol Beijing, Dept Environm Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China

4.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing 100089, Peoples R China

关键词： Multi-level biological contact oxidation tanks; Porous block carriers; Poultry manure wastewater; Simultaneous nitrification and denitrification (SND)

期刊名称：PROCESS SAFETY AND ENVIRONMENTAL PROTECTION （ 影响因子：6.158； 五年影响因子：6.046 ）

ISSN： 0957-5820

年卷期： 2018 年 120 卷

页码：

收录情况： SCI

摘要： A pilot-scale (5 m(3)/d) study was applied for the treatment of a high-strength poultry manure wastewater by using a multi-level biological contact oxidation tanks system with novel carriers. Firstly, four kinds of carriers including porous block carriers, sponge globoid carriers, fiber ball carriers, and suspend plastic carriers were compared at lab-scale experiment to choose the best performed carriers for the further application in pilot scale experiment. Then, the performance of the pollutants elimination during the whole pilot-scale reactor as well as the contribution efficiency of each tank under different influent pollutants loads were investigated. Finally, the biomass evaluation on the carriers and the mechanism of nitrogen removal were also explored. The conclusion showed that the effluent quality could satisfy the discharge standard of pollutants for livestock and poultry breeding industry (GB 18596-2001) when the influent organic load was less than 3.64 kg CODcr/(m(3) d) during the pilot-scale system placed with the porous block carriers. The contact oxidation tank I dominated the average contribution efficiency of CODcr (89.2%), ammonia (69.6%), and the total nitrogen (57.3%) during the three-level biological contact oxidation tanks. The step-feed operational model was suggested to further increase the pollutants removal capacity of the following Tank II and Tank III. The oxygen-deficient environment of the biofilm and the proper three-dimensional spiral structure of the carriers were suitable for the happening of the simultaneous nitrification and denitrification occurred in the pilot-scale aerobic reactor. (C) 2018 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

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