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Wu Q, Chen Y, Dou X, Liao D, Li K, An C, Li G, Dong Z. Microbial fertilizers improve soil quality and crop yield in coastal saline soils by regulating soil bacterial and fungal community structure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 949:175127. [PMID: 39084360 DOI: 10.1016/j.scitotenv.2024.175127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 07/19/2024] [Accepted: 07/27/2024] [Indexed: 08/02/2024]
Abstract
Salinization is a global problem affecting agricultural productivity and sustainability. The application of exogenous microbial fertilizer harbors great potential for improving saline-alkali soil conditions and increasing land productivity. Yet the responses to microbial fertilizer application rate in terms of rhizosphere soil biochemical characteristics, soil microbial community, and crop yield and their interrelationships and underlying mechanisms are still unclear. Here, we studied changes to rhizosphere soil-related variables, soil enzyme activity (catalase, sucrase, urease), microbial community diversity, and sweet sorghum (Sorghum bicolor (L.) Moench) yield under four fertilization concentration levels (0, 0.12, 0.24, and 0.36 kg m-2) in a saline-alkali ecosystem (Shandong, China). Our results showed that the best improvement effect on soil when the microbial fertilizer was applied at a rate of 0.24 kg m-2. Compared with the control (sweet sorghum + no fertilizer), it significantly increased soil organic carbon (21.50 %), available phosphorus (26.14 %), available potassium (36.30 %), and soil urease (38.46 %), while significantly reducing soil pH (2.21 %) and EC (12.04 %). Meanwhile, the yield of sweet sorghum was increased by 24.19 %. This is mainly because microbial fertilizers enhanced the diversity and the network complexity of bacterial and fungal communities, and influenced catalase (CAT), urease (UE), and sucrase (SC), thereby facilitating nutrient release in the soil, enhancing soil fertility, and indirectly influencing sweet sorghum productivity. Among them, Gemmatimonadota and Verrucomicrobiota may be the key microbial factors affecting sweet sorghum yield, while available potassium, soil urease and available phosphorus are the main soil factors. These findings provide valuable theoretical insights for preserving the health of coastal saline-alkali soils and meeting the agricultural demand for increased yield per unit of land area.
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Affiliation(s)
- Qicong Wu
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China
| | - Yang Chen
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China
| | - Xiaohui Dou
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China
| | - Dongxi Liao
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China
| | - Kaiyi Li
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China
| | - Chunchun An
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China
| | - Guohui Li
- Water Resources Research Institute of Shandong Province, Ji'nan 250000, China.
| | - Zhi Dong
- Co-Innovation Center for Soil-Water and Forest-Grass Ecological Conservation in Yellow River Basin of Shandong Higher Education Institutions, College of Forestry, Shandong Agricultural University, Tai'an 271018, China; Mountain Tai Forest Ecosystem Research Station of State Forestry and Grassland Administration, Tai'an 271018, China.
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Zhang W, Xin H, Li Z, Cui Q, Xu B, Tang B, Wang Y, Xu C, Xue J. Responses of CO 2 and CH 4 in the alpine wetlands of the Tibetan Plateau to warming and nitrogen and phosphorus additions. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024. [PMID: 39037733 DOI: 10.1039/d4em00174e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Wetland ecosystems store large amounts of carbon, and CO2 and CH4 fluxes from this ecosystem receive the double impact of climate change and human activities. Nonetheless, research on how multi-gradient warming and nitrogen and phosphorus additions affect these wetland greenhouse gas emissions is still limited, particularly in alpine wetland ecosystems. Therefore, we conducted a field experiment on the Tibetan Plateau wetlands, investigating the effects of warming and nitrogen and phosphorus additions on the CO2 and CH4 fluxes in alpine wetlands. Results indicated that warming enhanced the CO2 absorption and CH4 emission in the alpine meadow ecosystem, possibly related to changes in plant growth and microbial activity induced by warming, while we noticed that the promotion of CO2 uptake weakened with the increase in the magnitude of warming, suggesting that there may be a temperature threshold beyond which the ecosystem's capacity for carbon sequestration may be reduced. Nitrogen addition increased CH4 emission, with the effect on CO2 absorption shifting from inhibition to enhancement as the amount of applied nitrogen or phosphorus increased. The interaction between warming and nitrogen and phosphorus additions further influenced CH4 emission, exhibiting a synergistic enhancement effect. This study deepens our understanding of the greenhouse gas responses of alpine wetland ecosystems to warming and nitrogen and phosphorus additions, which is significant for predicting and managing ecosystem carbon balance under global change.
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Affiliation(s)
- Wenbao Zhang
- School of Environment and Municipal Engineering, Lanzhou Jiao Tong University, Lanzhou 730070, Gansu, China.
| | - Huijuan Xin
- School of Environment and Municipal Engineering, Lanzhou Jiao Tong University, Lanzhou 730070, Gansu, China.
| | - Zongxing Li
- Observation and Research Station of Eco-Hydrology and National Park by Stable Isotope Tracing in Qilian Mountains, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
| | - Qiao Cui
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Bin Xu
- College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Biao Tang
- School of Environment and Municipal Engineering, Lanzhou Jiao Tong University, Lanzhou 730070, Gansu, China.
| | - Yaning Wang
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
| | - Chong Xu
- School of Environment and Municipal Engineering, Lanzhou Jiao Tong University, Lanzhou 730070, Gansu, China.
| | - Jian Xue
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
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Duan L, Liu X, Sun Y, Wu Y. Elucidating biogeochemical characterization of nitrogen in the vadose zone integrating geochemistry, microorganism, and numerical simulation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174687. [PMID: 38997026 DOI: 10.1016/j.scitotenv.2024.174687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/30/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
A thorough comprehension of nitrogen biogeochemical processes in the vadose zone is crucial for the effective prevention and remediation of soil-groundwater system contamination. Despite the growing research on this subject, the full scope of nitrogen biogeochemical characterization in different geological environments remains poorly understood. This study addresses this knowledge gap by integrating geochemical, microbiological and numerical simulation approaches to gain a deeper insight into nitrogen biogeochemistry in agriculture. Our findings indicate the biogeochemical behavior of nitrogen in the vadose zone is mediated by microorganisms, driven by hydraulics, influenced by geological conditions and environmental factors. Along the groundwater flow, NH4+-N was found to be heavily accumulated in the topsoil of 0-40 cm, while NO3--N was transported and driven by hydrodynamics from both vertical and horizontal directions. Microbial diversity, species composition and functional microorganisms were significantly influenced by soil depth, rather than geomorphological types. Oxidation-reduction potential (ORP), total organic carbon (TOC), soil moisture (MOI), bicarbonate (HCO3-), and ferrous (Fe2+) were identified as the principal environmental factors that regulate nitrogen metabolism and the dominant biochemical processes, encompassing nitrogen fixation, nitrification, and denitrification. Driven by hydrodynamics, NH4+-N, NO2--N and NO3--N tend to form distinct biochemical reaction zones in the vertical vadose zone. These areas are dynamic and subject to geomorphologies. It should be noted that NO3--N can migrate towards groundwater from the clayey sand in the Alluvial Plain, which presents a potential risk of groundwater contamination. The fissure structure of loess may serve as the major transport pathway for groundwater nitrogen contamination in the Loess Tableland. This finding highlights the importance of integrating microbiology, geochemistry and hydraulics to elucidate the biogeochemical processes of nitrogen in the vadose zone with a dynamic mindset.
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Affiliation(s)
- Lei Duan
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, China; Key Laboratory of Underground Hydrology and Ecological Effects in Arid Regions of the Ministry of Education, Chang'an University, Xi'an 710054, Shaanxi, China.
| | - Xiaobang Liu
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, China; Key Laboratory of Underground Hydrology and Ecological Effects in Arid Regions of the Ministry of Education, Chang'an University, Xi'an 710054, Shaanxi, China
| | - Yaqiao Sun
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, China; Key Laboratory of Underground Hydrology and Ecological Effects in Arid Regions of the Ministry of Education, Chang'an University, Xi'an 710054, Shaanxi, China
| | - Yakun Wu
- School of Water and Environment, Chang'an University, Xi'an 710054, Shaanxi, China; Key Laboratory of Underground Hydrology and Ecological Effects in Arid Regions of the Ministry of Education, Chang'an University, Xi'an 710054, Shaanxi, China
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Geng Y, Zhou P, Wang Z, Peng C, Li G, Li D. The roles of rare and abundant microbial species in the primary succession of biological soil crusts are differentiated in metal tailings ponds with different states. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134577. [PMID: 38749248 DOI: 10.1016/j.jhazmat.2024.134577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/27/2024] [Accepted: 05/08/2024] [Indexed: 05/30/2024]
Abstract
Tailings ponds formed by long-term accumulation of mineral processing waste have become a global environmental problem. Even worse, tailings ponds are often simply abandoned or landfilled after they cease to be used. This allows pollution to persist and continue to spread in the environment. The significance of primary succession mediated by biological soil crusts for tailings pond remediation has been illustrated by previous studies. However, the process of primary succession may not be the same at different stages during the lifetime of tailings ponds. Therefore, we investigated the environmental differences and the successional characteristics of microbial communities in the primary successional stage of tailings ponds at three different states. The results showed that the primary succession process positively changed the environment of tailings ponds in any state of tailings ponds. The primary successional stage determined the environmental quality more than the state of the tailings pond. In the recently abandoned tailings ponds, abundant species were more subjected to heavy metal stress, while rare species were mainly limited by nutrient content. We found that as the succession progressed, rare species gradually acquired their own community space and became more responsive to environmental stresses. Rare species played an important role in microbial keystone species groups.
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Affiliation(s)
- Yuchen Geng
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Panpan Zhou
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhicong Wang
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Chengrong Peng
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Genbao Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Dunhai Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Zhou X, Hu Y, Li H, Sheng J, Cheng J, Zhao T, Zhang Y. Phosphorus addition increases stability and complexity of co-occurrence network of soil microbes in an artificial Leymus chinensis grassland. Front Microbiol 2024; 15:1289022. [PMID: 38601937 PMCID: PMC11004269 DOI: 10.3389/fmicb.2024.1289022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 03/14/2024] [Indexed: 04/12/2024] Open
Abstract
Introduction Understanding the response of cross-domain co-occurrence networks of soil microorganisms to phosphorus stability and the resulting impacts is critical in ecosystems, but the underlying mechanism is unclear in artificial grassland ecosystems. Methods In this study, the effects of four phosphorus concentrations, P0 (0 kg P ha-1), P1 (15.3 kg P ha-1), P2 (30.6 kg P ha-1), and P3 (45.9 kg P ha-1), on the cross-domain co-occurrence network of bacteria and fungi were investigated in an artificial Leymus chinensis grassland in an arid region. Results and discussion The results of the present study showed that phosphorus addition significantly altered the stem number, biomass and plant height of the Leymus chinensis but had no significant effect on the soil bacterial or fungal alpha (ACE) diversity or beta diversity. The phosphorus treatments all increased the cross-domain co-occurrence network edge, node, proportion of positively correlated edges, edge density, average degree, proximity to centrality, and robustness and increased the complexity and stability of the bacterial-fungal cross-domain co-occurrence network after 3 years of continuous phosphorus addition. Among them, fungi (Ascomycota, Basidiomycota, Mortierellomycota and Glomeromycota) play important roles as keystone species in the co-occurrence network, and they are significantly associated with soil AN, AK and EC. Finally, the growth of Leymus chinensis was mainly due to the influence of the soil phosphorus content and AN. This study revealed the factors affecting the growth of Leymus chinense in artificial grasslands in arid areas and provided a theoretical basis for the construction of artificial grasslands.
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Affiliation(s)
- Xiaoguo Zhou
- College of Resources and Environment, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Soil and Plant Ecological Processes, Urumqi, China
| | - Yutong Hu
- College of Resources and Environment, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Soil and Plant Ecological Processes, Urumqi, China
| | - Huijun Li
- College of Resources and Environment, Xinjiang Agricultural University, Urumqi, China
- The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jiandong Sheng
- College of Resources and Environment, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Soil and Plant Ecological Processes, Urumqi, China
| | - Junhui Cheng
- College of Resources and Environment, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Soil and Plant Ecological Processes, Urumqi, China
| | - Tingting Zhao
- College of Resources and Environment, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Key Laboratory of Soil and Plant Ecological Processes, Urumqi, China
| | - Yuanmei Zhang
- College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi, China
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Mao L, Kang J, Sun R, Liu J, Ge J, Ping W. Ecological succession of abundant and rare subcommunities during aerobic composting in the presence of residual amoxicillin. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133456. [PMID: 38211525 DOI: 10.1016/j.jhazmat.2024.133456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/19/2023] [Accepted: 01/03/2024] [Indexed: 01/13/2024]
Abstract
Aerobic composting increases the content of soluble nutrients and facilitates the safe treatment of livestock manure. Although different taxa play crucial roles in maintaining ecological functionality, the succession patterns of community composition and assembly of rare and abundant subcommunities during aerobic composting under antibiotic stress and their contributions to ecosystem functionality remain unclear. Therefore, this study used 16 S rRNA gene sequencing technology to reveal the response mechanisms of diverse microbial communities and the assembly processes of abundant and rare taxa to amoxicillin during aerobic composting. The results indicated that rare taxa exhibited distinct advantages in terms of diversity, community composition, and ecological niche width compared with abundant taxa, highlighting their significance in maintaining ecological community dynamics. In addition, deterministic (heterogeneous selection) and stochastic processes (dispersal limitation) play roles in the community succession and functional dynamics of abundant and rare subcommunities. The findings of this study may contribute to a better understanding of the relative importance of deterministic and stochastic assembly processes in composting systems, and the ecological functions of diverse microbial communities, ultimately leading to improved ecological environment.
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Affiliation(s)
- Liangyang Mao
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Jie Kang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Rui Sun
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Jiaxin Liu
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Jingping Ge
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China; Hebei University of Environmental Engineering, Hebei Key Laboratory of Agroecological Safety, Qinhuangdao 066102, China.
| | - Wenxiang Ping
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China; Hebei University of Environmental Engineering, Hebei Key Laboratory of Agroecological Safety, Qinhuangdao 066102, China.
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Shi B, Cheng X, Jiang S, Pan J, Zhu D, Lu Z, Jiang Y, Liu C, Guo H, Xie J. Unveiling the power of COD/N on constructed wetlands in a short-term experiment: Exploring microbiota co-occurrence patterns and assembly dynamics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169568. [PMID: 38143001 DOI: 10.1016/j.scitotenv.2023.169568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Constructed wetlands (CWs) are a cost-effective and environmentally friendly wastewater treatment technology. The influent chemical oxygen demand (COD)/nitrogen (N) ratio (CNR) plays a crucial role in microbial activity and purification performance. However, the effects of CNR changes on microbial diversity, interactions, and assembly processes in CWs are not well understood. In this study, we conducted comprehensive mechanistic experiments to investigate the response of CWs to changes in influent CNR, focusing on the effluent, rhizosphere, and substrate microbiota. Our goal is to provide new insights into CW management by integrating microbial ecology and environmental engineering perspectives. We constructed two groups of horizontal subsurface flow constructed wetlands (HFCWs) and set up three influent CNRs to analyse the microbial responses and nutrient removal. The results indicated that increasing influent CNR led to a decrease in microbial α-diversity and niche width. Genera involved in nitrogen removal and denitrification, such as Rhodobacter, Desulfovibrio, and Zoogloea, were enriched under medium/high CNR conditions, resulting in higher nitrate (NO3--N) removal (up to 99 %) than that under lower CNR conditions (<60 %). Environmental factors, including water temperature (WT), pH, and phosphorus (P), along with CNR-induced COD and NO3--N play important roles in microbial succession in HFCWs. The genus Nitrospira, which is involved in nitrification, exhibited a significant negative correlation (p < 0.05) with WT, COD, and P. Co-occurrence network analysis revealed that increasing influent CNR reduced the complexity of the network structure and increased microbial competition. Analysis using null models demonstrated that the microbial community assembly in HFCWs was primarily driven by stochastic processes under increasing influent CNR conditions. Furthermore, HFCWs with more stochastic microbial communities exhibited better denitrification performance (NO3--N removal). Overall, this study enhances our understanding of nutrient removal, microbial co-occurrence, and assembly mechanisms in CWs under varying influent CNRs.
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Affiliation(s)
- Baoshan Shi
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China; State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou 510640, China
| | - Xiangju Cheng
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China; State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou 510640, China.
| | - Shenqiong Jiang
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
| | - Junheng Pan
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
| | - Dantong Zhu
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China; State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou 510640, China
| | - Zhuoyin Lu
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China; State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou 510640, China
| | - Yuheng Jiang
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
| | - Chunsheng Liu
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
| | - Heyi Guo
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
| | - Jun Xie
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China
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Zhang K, Jiang S, Zhang J, Zheng J, Li P, Wang S, Bi R, Gao L. Phycoremediation and valorization of hypersaline pickled mustard wastewater via Chaetoceros muelleri and indigenous bacteria. BIORESOURCE TECHNOLOGY 2024; 393:130172. [PMID: 38086464 DOI: 10.1016/j.biortech.2023.130172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/14/2023] [Accepted: 12/06/2023] [Indexed: 01/18/2024]
Abstract
Hypersaline pickled mustard wastewater (PMW), a typical food wastewater with high nutrient content, was successfully bioremediated via the co-treatment of Chaetoceros muelleri and indigenous bacteria in this study. Chemical oxygen demand, ammonia nitrogen, total nitrogen and total phosphorus in 10 % PMW could be effectively reduced by 82 %, 90 %, 94 % and 96 %, respectively, after 12 days treatment. Oxygen species activities, malondialdehyde content, microalgal biomass, photosynthesis and extracellular polymeric substances were characterized during the treatment to determine the responses of the consortium when exposed to different concentration of PMW. Microbial community analysis demonstrated a significant increase in the relative abundance of Halomonas and Marinobacter in the 10 % PMW after 12 days treatment, which was beneficial for nutrients recycling by the diatoms. Meanwhile, C. muelleri was effective in reducing the relative abundance of potentially pathogenic bacteria Malaciobacter. In conclusion, the work here offers a promising and environmentally friendly approach for hypersaline wastewater treatment.
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Affiliation(s)
- Kai Zhang
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China; College of Environment and Ecology, Chongqing University, Chongqing 400044, PR China
| | - Shuqin Jiang
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China
| | - Juan Zhang
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China
| | - Jishu Zheng
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China
| | - Ping Li
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China
| | - Song Wang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518061, PR China.
| | - Ru Bi
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China
| | - Lihong Gao
- Research Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, PR China; Chongqing Key Laboratory of Agricultural Waste Resource Utilization Technology and Equipment Research, Chongqing 401329, PR China.
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