The sustainable utilization of anaerobic digestion effluents treating in suspended filler algae assisted systems

doi:10.1016/j.seta.2022.102354

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	The sustainable utilization of anaerobic digestion effluents treating in suspended filler algae assisted systems
	Zhen, Xiaofei 2,3; Luo, Miao 2,3; Li, Zhenggui 1; Lin, Zhimin 3; Zhang, Yongheng 2,3; Feng, Lei 4; kang, Jian 5
刊名	Sustainable Energy Technologies and Assessments
	2022-10-01
卷号	53
关键词	Algae Ammonia Anaerobic digestion Bacteria Biogeochemistry Chemical oxygen demand Degradation Fertilizers Fillers Nitrogen Organic compounds Phosphorus Sustainable development Wastewater treatment Water conservation Algal-bacterial symbiosis Ammonia-nitrogen Anerobic digestion effluent Bacterial and alga community change Chemical-oxygen demands Degradation rate Nitrogen and phosphorus removal Suspended filler Total nitrogen Total phosphorus
ISSN号	2213-1388
DOI	10.1016/j.seta.2022.102354
英文摘要	Significant amounts of anaerobic digestion effluents (ADE) containing high concentration of inorganic salts (source of nitrogen and phosphorus) and hardly degradable organic matter are produced during the generation of biogas using livestock manure. Without appropriate treatment, the imbalanced carbon to nitrogen ratio may lead to severe pollution of the environment. Considering different environmentally friendly processes such as recycling, energy regeneration, and sustainable development, suspended fillers were added to traditional algal-bacterial symbiosis (ABS) systems. In the present research, three systems including suspended filler algae assisted bio-reactor (SFA-PBR), no filler algae assisted bio-reactor (NFA-PBR), and single activated sludge system (ABS) were examined. Changes in bacterial communities were analyzed using high throughput sequencing. In addition, the mechanisms of ADE degradation in the presence and absence of suspended algae fillers were studied by comparing their effect on the degradation of COD (chemical oxygen demand), TN (total nitrogen), AN (ammonia nitrogen), and TP (total phosphorus). Systems where the ratio of active microalgae to bacteria was higher promoted the interaction between the two types of microorganisms, accelerating the stability of the ABS. Thus, the daily COD degradation rate in the stage was still high. Flora such as microalgae and bacteria were embedded in the filler spheres, which increased the microorganisms resistance to the poor environment induced by high concentrations of inorganic nutrients and organic matter present in the ADE. This favored the sustainable water utilization of ADE. After the treatment in the SFA-PBR system, the COD degradation rate was 75.32 %. The effluent COD concentration was 334.21 ± 39.18 mg/L. TN and AN degradation rates were 89.34 and 91.32%, respectively. The TN and AN concentrations in the effluent were 35.42 ± 2.65 and 29.97 ± 2.65 mg/L, respectively. The degradation rate of TP was 95.39 %. The effluent TP concentration was 0.86 ± 0.18 mg/L. The Chao diversity and ACE index values in the SFA-PBR system were higher than those of other groups. This result further supports the conclusion formulated with the Shannon diversity index result. Specifically, the effective sequence in the SFA-PBR system group presented a higher degree of homogeneity and abundance. © 2022 Elsevier Ltd
WOS研究方向	Science & Technology - Other Topics ; Energy & Fuels
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000847202800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159407]
专题	研究生院
作者单位	1.Sichuan Provincial Engineering Research Center of Hydroelectric Energy Power Equipment Technology, Xihua University, Chengdu; 610039, China; 2.School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou; 730070, China; 3.Key Laboratory of Railway Vehicle Thermal Engineering of MOE, Lanzhou Jiaotong University, Lanzhou; 730070, China; 4.Liaoning Province Clean Energy Key Laboratory, Shenyang Aerospace University, Shenyang; 110136, China; 5.School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhen, Xiaofei,Luo, Miao,Li, Zhenggui,et al. The sustainable utilization of anaerobic digestion effluents treating in suspended filler algae assisted systems[J]. Sustainable Energy Technologies and Assessments,2022,53.
APA	Zhen, Xiaofei.,Luo, Miao.,Li, Zhenggui.,Lin, Zhimin.,Zhang, Yongheng.,...&kang, Jian.(2022).The sustainable utilization of anaerobic digestion effluents treating in suspended filler algae assisted systems.Sustainable Energy Technologies and Assessments,53.
MLA	Zhen, Xiaofei,et al."The sustainable utilization of anaerobic digestion effluents treating in suspended filler algae assisted systems".Sustainable Energy Technologies and Assessments 53(2022).