Deep purification effect of three-stage surface flow constructed wetland on pig farm wastewater

doi:10.19965/j.cnki.iwt.2022-0843

Abstract

Key words: surface-flow constructed wetlands, swine wastewater, microbial community, network analysis

CLC Number:

X703.1

Shaoqi XU, Kaixue JIA, Linqi XIE, Zhigang WANG, Ji LI, Yuquan WEI. Deep purification effect of three-stage surface flow constructed wetland on pig farm wastewater[J]. Industrial Water Treatment, 2023, 43(7): 86-93.

徐少奇, 贾凯雪, 解林奇, 王志刚, 李季, 魏雨泉. 三级表面流人工湿地对猪场废水深度净化效果研究[J]. 工业水处理, 2023, 43(7): 86-93.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2022-0843

https://www.iwt.cn/EN/Y2023/V43/I7/86

Figures/Tables 9

Fig. 1 Structure and sampling point distribution of tertiary surface flow constructed wetland system

Fig.2 Removal effects of different pollutants in constructed wetlands at all levels

Table 1 Microbial diversity and richness of multistage surface flow constructed wetland

样本	多样性	丰富度		覆盖率
样本	Shannon	Ace	Chao	Coverage
T1	6.7^a	4 614^b	4 496^b	0.983^ab
T2	6.7^a	4 833^b	4 733^b	0.982^b
T3	6.8^a	5 420^a	5 308^a	0.979^c
原始土壤（Origin）	6.4^b	4 139^c	4 057^c	0.984^a

Fig. 3 Venn diagram of OTU distribution of wetlands at all levels

Fig. 4 ANOSIM analysis among sediment samples at OTU level （^** p<0.01）

Fig. 5 Composition of sediment bacterial community at phylum level

Fig. 6 Changes of main bacteria in sediment before and after wetland operation at phylum level

Fig. 7 Redundancy analysis（RDA） between sediment microorganisms and environmental factors at phylum level

Fig. 8 Co-occurrence network of sediment microorganisms and environmental factors at the genus level

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