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Dynamic comparison on the usage of probiotics in organic wastewater treatment under aerobic conditions in a diurnal environment

文献类型： 外文期刊

作者： Liu, Jun 1 ; Liu, Yali 2 ; Li, Guoqin 2 ; Shen, Junda 2 ; Tao, Zhengrong 2 ; Tian, Yong 2 ; Chen, Li 2 ; Li, Chunmei 1 ; Lu, 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Anim Sci & Technol, Nanjing 210095, Jiangsu, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Anim Husb & Vet Sci, Hangzhou 310020, Zhejiang, Peoples R China

期刊名称：JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION （ 影响因子：2.235； 五年影响因子：2.906 ）

ISSN： 1096-2247

年卷期： 2016 年 66 卷 12 期

页码：

收录情况： SCI

摘要： This study aims at evaluating and comparing pollution removal in wastewater treatment via the use of probiotics alone or in combination under aerobic conditions in diurnal cycles. Herein, 650 mL of organic wastewater was stored in 1-L conical flasks and then randomly divided into three treatment groups, each experiment was repeated three times. Group A was supplemented with 2% (v/v) photosynthetic bacteria (PSB; Rhodopseudomonas palustris) alone; group B was supplemented with 2% (v/v) B. subtilis alone; and group C was supplemented with 1% (v/v) PSB and 1% (v/v) B. subtilis. Results showed that the pH increases were in the order: group A < group C < group B. The performance of the probiotics in terms of ammonia nitrogen and total nitrogen (TN) removal was in the order: group A < group C < group B, whereas in terms of total organic matter (TOC) and total carbon (TC) removal, the order was group C < group B < group A. These results showed that the effect of probiotics combination treatment on ammonia nitrogen and TN removal was better than that of using B. subtilis alone, but worse than that of using PSB alone. The effect of B. subtilis alone treatment on TOC and TC removal was better than that of using PSB alone, but the combination of PSB and B. subtilis showed greater benefits on TOC and TC removal.Implications: Photosynthetic bacteria and B. subtilis were used in this study to investigate carbon and nitrogen metabolism via the use of different probiotics and then study further on comparing and achieving the best pollution removal performance in probiotics alone or in combination treatment. To make observations realistic, the experiments were conducted under aerobic conditions in a diurnal cycle environment.

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