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Huang H, He M, Liu X, Ma X, Yang Y, Shen Y, Yang Y, Zhen Y, Wang J, Zhang Y, Wang S, Shan X, Fan W, Guo D, Niu Z. The dynamic features and microbial mechanism of nitrogen transformation for hydrothermal aqueous phase as fertilizer in dryland soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120643. [PMID: 38513582 DOI: 10.1016/j.jenvman.2024.120643] [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: 08/19/2023] [Revised: 02/19/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
Hydrothermal aqueous phase (HAP) contains abundant organics and nutrients, which have potential to partially replace chemical fertilizers for enhancing plant growth and soil quality. However, the underlying reasons for low available nitrogen (N) and high N loss in dryland soil remain unclear. A cultivation experiment was conducted using HAP or urea to supply 160 mg N kg-1 in dryland soil. The dynamic changes of soil organic matters (SOMs), pH, N forms, and N cycling genes were investigated. Results showed that SOMs from HAP stimulated urease activity and ureC, which enhanced ammonification in turn. The high-molecular-weight SOMs relatively increased during 5-30 d and then biodegraded during 30-90 d, which SUV254 changed from 0.51 to 1.47 to 0.29 L-1 m-1. This affected ureC that changed from 5.58 to 5.34 to 5.75 lg copies g-1. Relative to urea, addition HAP enhanced ON mineralization by 8.40 times during 30-90 d due to higher ureC. It decreased NO3-N by 65.35%-77.32% but increased AOB and AOA by 0.25 and 0.90 lg copies g-1 at 5 d and 90 d, respectively. It little affected nirK and increased nosZ by 0.41 lg copies g-1 at 90 d. It increased N loss by 4.59 times. The soil pH for HAP was higher than that for urea after 11 d. The comprehensive effects of high SOMs and pH, including ammonification enhancement and nitrification activity inhibition, were the primary causes of high N loss. The core idea for developing high-efficiency HAP fertilizer is to moderately inhibit ammonification and promote nitrification.
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Affiliation(s)
- Hua Huang
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China; Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan'an, 716000, Shaanxi, China
| | - Maoyuan He
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Xiaoyan Liu
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Xiaoli Ma
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Ying Yang
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Yuanlei Shen
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Yujia Yang
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Yanzhong Zhen
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China
| | - Jian Wang
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China
| | - Yongtao Zhang
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China
| | - Shuai Wang
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China
| | - Xianying Shan
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Wenyan Fan
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Di Guo
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China
| | - Zhirui Niu
- School of Petroleum Engineering and Environmental Engineering, Yan'an Key Laboratory of Agricultural Solid Waste Resource Utilization, Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Engineering Research Center of Efficient Exploitation of Oil and Gas Resources and Protection Ecological Environment, Yan'an, 716000, China; Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan'an, 716000, Shaanxi, China.
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Li Z, Zhang R, Jiang J, Chai Y, Yang H, Zong Y, Tong W, Yuan M, Li R, Wang L, Shan S, Wong MH. Co-application of concentrated biogas slurry and pyroligneous liquor mitigates ammonia emission and sustainably releases ammonium from paddy soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169078. [PMID: 38101624 DOI: 10.1016/j.scitotenv.2023.169078] [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: 08/14/2023] [Revised: 11/10/2023] [Accepted: 12/01/2023] [Indexed: 12/17/2023]
Abstract
Biogas production causes vast amounts of biogas slurry (BS). Application of BS to croplands can substitute chemical fertilizers while result in higher ammonia emissions. Tremendous variation of ammonium concentration in different BSs induces imprecise substitution, while concentrated BS holds higher and more stable ammonium. Pyroligneous liquor, an acidic aqueous liquid from biochar production, can be used with concentrated BS to reduce ammonia emission. However, the effects of combining concentrated BS with pyroligneous liquor on ammonia emission and soil (nitrogen) N transformation have been poorly reported. In this study, a field experiment applying concentrated BS only, or combining with 5 %, 10 %, and 20 % pyroligneous liquor (v/v) for substituting 60 % N of single rice cultivation was conducted by contrast with chemical fertilization. The results showed that substituting chemical N fertilizers with concentrated BS increased 24.6 % ammonia emission. In comparison, applying 5 %, 10 %, and 20 % pyroligneous liquor with concentrated BS reduced 4.9 %, 20.3 %, and 24.4 % ammonia emissions, respectively. Applying concentrated BS with more pyroligneous liquor preserved higher ammonium and dissolved organic carbon in floodwater, and induced higher nitrate concentration after fertilization. Whereas soil ammonium and nitrate contents were decreased along with more pyroligneous liquor application before and after the topdressing and exhibited sustainable release until rice harvest. In comparison, the soil N mineralization and nitrification rates were occasionally elevated, while the activities of soil urease, protease, nitrate reductase, and nitrite reductase had multiple responses. Applying concentrated BS only, or combining with 5 %, 10, and 20 % pyroligneous liquor, have little effect on soil basic properties but inorganic N. In summary, applying concentrated BS with >10 % pyroligneous liquor could preserve more N with sustainable release and potentially lower N loss to the atmosphere, and we proposed that applying 13.5 % pyroligneous liquor in concentrated BS could achieve maximum soil fertility and minimum ammonia emission.
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Affiliation(s)
- Zichuan Li
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China
| | - Rui Zhang
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China
| | - Jianfeng Jiang
- Center of Agricultural Technology Extension of Qujiang District, Quzhou 324022, China
| | - Yanjun Chai
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China.
| | - Haijun Yang
- Center of Agricultural Technology Extension of Qujiang District, Quzhou 324022, China
| | - Yutong Zong
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China
| | - Wenbin Tong
- Center of Agricultural Technology Extension of Qujiang District, Quzhou 324022, China
| | - Mengting Yuan
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China
| | - Ronghui Li
- Center of Construction for Beautiful Villages of Quzhou City, Quzhou 324003, China
| | - Lanting Wang
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China
| | - Shengdao Shan
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou 311023, China
| | - Ming Hung Wong
- Consortium on Health, Environment, Education, and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong, China
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Li H, Li D, Xu S, Wang Z, Chen X, Ding Y, Chu Q, Sha Z. Hydrothermal carbonization of biogas slurry and cattle manure into soil conditioner mitigates ammonia volatilization from paddy soil. CHEMOSPHERE 2023; 344:140378. [PMID: 37806332 DOI: 10.1016/j.chemosphere.2023.140378] [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: 07/05/2023] [Revised: 09/19/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Hydrothermal carbonization of biogas slurry and animal manure into hydrochar could enhance waste recycling waste and minimize ammonia (NH3) volatilization from paddy fields. In this study, cattle manure-derived hydrochar prepared in the presence of Milli-Q water (CMWH) and biogas slurry (CMBSH), and biogas slurry-based hydrochar embedded with zeolite (ZHC) were applied to rice-paddy soil. The results demonstrated that CMBSH and ZHC treatments could significantly mitigate the cumulative NH3 volatilization and yield-scale NH3 volatilization by 27.9-45.2% and 28.5-45.4%, respectively, compared to the control group (without hydrochar addition), and significantly correlated with pH and ammonium-nitrogen (NH4+-N) concentration in floodwater. Nitrogen (N) loss via NH3 volatilization in the control group accounted for 24.9% of the applied N fertilizer, whereas CMBSH- and ZHC-amended treatments accounted for 13.6-17.9% of N in applied fertilizer. The reduced N loss improved soil N retention and availability for rice; consequently, grain N content significantly increased by 6.5-14.9% and N-use efficiency increased by 6.4-16.0% (P < 0.05), respectively. Based on linear fitting results, NH3 volatilization mitigation resulted from lower pH and NH4+-N concentration in floodwater that resulted from the acidic property and specific surface area of hydrochar treatments. Moreover, NH3-oxidizing archaea abundance in hydrochar-treated soil decreased by 40.9-46.9% in response to CMBSH and ZHC treatments, potentially suppressing NH4+-N transformation into nitrate and improving soil NH4+-N retention capacity. To date, this study applied biogas slurry-based hydrochar into paddy soil for the first time and demonstrated that ZHC significantly mitigated NH3 and increased N content. Overall, this study proposes an environmental-friendly strategy to recycle the wastes, biogas slurry, to the paddy fields to mitigate NH3 volatilization and increase grain yield of rice.
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Affiliation(s)
- Huiting Li
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, 232001, China
| | - Detian Li
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, 232001, China; School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shuhan Xu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhenqi Wang
- Shanghai Academy of Environmental Sciences, Shanghai, 200233, China; College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Xu Chen
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines, Physiology, School of Basic Medicine, Medical College, Qingdao University, Qingdao, China
| | - Yuling Ding
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qingnan Chu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, 28223, Spain.
| | - Zhimin Sha
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Sun H, Chen S, Zhu N, Jeyakumar P, Wang J, Xie W, Feng Y. Hydrothermal carbonization aqueous phase promotes nutrient retention and humic substance formation during aerobic composting of chicken manure. BIORESOURCE TECHNOLOGY 2023:129418. [PMID: 37390933 DOI: 10.1016/j.biortech.2023.129418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
The aqueous phase (AP) of hydrothermal carbonization is rich in humic substances (HSs), which could influence the poultry manure composting process and the product quality. Here, raw AP and its modified product (MAP) with different nitrogen (N) contents were added into chicken manure composting at low (5%) or high (10%) rate. Results showed that all APs addition decreased the temperature and pH but AP-10% increased total N, HSs, and humic acid (HA) of compost by 12%, 18% and 27%, respectively. MAP applications increased the total phosphorus by 8-9% and MAP-10% enhanced the total potussium content by 20%. Additionally, both AP and MAP additions increased the contents of three major components of dissolved organic matter by 20-64%. In conclusion, both AP and MAP can generally improve the chicken manure compost quality, which provides a new idea for the recycling of APs derived from agro-forestry wastes during hydrothermal carbonization.
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Affiliation(s)
- Haijun Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Sen Chen
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Ning Zhu
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Paramsothy Jeyakumar
- Environmental Sciences, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand
| | - Jixiang Wang
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Wenping Xie
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences (CAS), Nanjing 210008, China.
| | - Yanfang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
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Dai Y, Wang Z, Li J, Xu Z, Qian C, Xia X, Liu Y, Feng Y. Tofu by-product soy whey substitutes urea: Reduced ammonia volatilization, enhanced soil fertility and improved fruit quality in cherry tomato production. ENVIRONMENTAL RESEARCH 2023; 226:115662. [PMID: 36913827 DOI: 10.1016/j.envres.2023.115662] [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: 12/23/2022] [Revised: 02/13/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Soy whey is an abundant, nutrient-rich and safe wastewater produced in tofu processing, so it is necessary to valorize it instead of discarding it as sewage. Whether soy whey can be used as a fertilizer substitute for agricultural production is unclear. In this study, the effects of soy whey serving as a nitrogen source to substitute urea on soil NH3 volatilization, dissolved organic matter (DOM) components and cherry tomato qualities were investigated by soil column experiment. Results showed that the soil NH4+-N concentrations and pH values of the 50% soy whey fertilizer combined with 50% urea (50%-SW) and 100% soy whey fertilizer (100%-SW) treatments were lower than those of 100% urea treatment (CKU). Compared with CKU, 50%-SW and 100%-SW treatments increased the abundance of ammonia oxidizing bacteria (AOB) by 6.52-100.89%, protease activity by 66.22-83.78%, the contents of total organic carbon (TOC) by 16.97-35.64%, humification index (HIX) of soil DOM by 13.57-17.99%, and average weight per fruit of cherry tomato by 13.46-18.56%, respectively. Moreover, soy whey as liquid organic fertilizer reduced the soil NH3 volatilization by 18.65-25.27% and the fertilization cost by 25.94-51.87% compared with CKU. This study provides a promising option with economic and environmental benefits for soy whey utilization and cherry tomato production, which contributes to the win-win effectiveness of sustainable production for both the soy products industry and agriculture.
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Affiliation(s)
- Yiqiang Dai
- Institute of Agro-Product Processing, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhe Wang
- Institute of Agro-Product Processing, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing Li
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Key Laboratory of Integrated Planting and Breeding, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Zhuang Xu
- Institute of Agro-Product Processing, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Cong Qian
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Key Laboratory of Integrated Planting and Breeding, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Xiudong Xia
- Institute of Agro-Product Processing, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Yang Liu
- Institute of Agricultural Information, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Yanfang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Key Laboratory of Integrated Planting and Breeding, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
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Wang R, Cao J, Zhu W, Lv Y. Integration of pre-precipitation optimizing performance of culture medium prepared from salvaged cyanobacterial slurry. CHEMOSPHERE 2023; 316:137805. [PMID: 36632957 DOI: 10.1016/j.chemosphere.2023.137805] [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: 09/15/2022] [Revised: 12/06/2022] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
Cyanobacterial slurry is a waste biomass produced in the remediation of eutrophic lakes; it is obtained in large volume and is difficult to treat, but it has the potential to be used as raw material for culture medium for oil-producing microalgae. In this study, three kinds of oil-producing microalgae were tested, including Chlorella vulgaris, Scenedesmus obliquus, and Nannochloropsis oculate. On the basis of the medium preparation method "hydrothermal oxidation + ultrafiltration," the pre-precipitation phenomenon induced by pH adjustment was implemented to modify the culture medium and improve its performance. Ammonia nitrogen and macromolecules (mainly humic substances) were found to possibly have a joint-influence mechanism upon microalgae. Pre-precipitation changed the nitrogen species distribution in the medium and lowered the concentration of macromolecules, which improved the ability of microalgae to use different forms of nitrogen. This promoted the growth of, and oil production by, the microalgae.
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Affiliation(s)
- Ruochen Wang
- College of Environment, Hohai University, Nanjing, 210098, China; Center for Taihu Basin, Institute of Water Science and Technology, Hohai University, Nanjing, 211111, China
| | - Jun Cao
- College of Environment, Hohai University, Nanjing, 210098, China; Center for Taihu Basin, Institute of Water Science and Technology, Hohai University, Nanjing, 211111, China; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 211111, China
| | - Wei Zhu
- College of Environment, Hohai University, Nanjing, 210098, China; Center for Taihu Basin, Institute of Water Science and Technology, Hohai University, Nanjing, 211111, China.
| | - Yi Lv
- College of Environment, Hohai University, Nanjing, 210098, China; Center for Taihu Basin, Institute of Water Science and Technology, Hohai University, Nanjing, 211111, China
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Huang H, Su Q, Li J, Niu Z, Wang D, Wei C, Long S, Ren J, Wang J, Shan B, Li Y, Liu Y, Li Q, Zhang Y. Effects of process water obtained from hydrothermal carbonization of poultry litter on soil microbial community, nitrogen transformation, and plant nitrogen uptake. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116307. [PMID: 36261995 DOI: 10.1016/j.jenvman.2022.116307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/02/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Process water (PW) obtained from hydrothermal carbonization of nitrogen-rich (N-rich) biowaste is proposed to be a renewable resource utilized as a liquid N fertilizer. However, its effects on soil microbial community, N transformation, and plant N uptake are unclear or controversial. In this study, fertilizers were prepared with different percentages of PW (poultry litter, 220 °C 1 or 8 h, PW-S or -L) and urea to supply 160 mg kg-1 total N in a barren alkali soil. Results showed that the addition of PW relative to pure urea decreased organic N mineralization by low bio-accessibility, increased N loss by high soil pH, and decreased NO3--N by low nitrification substrate. It supported the lettuce in health but decreased plant N uptake by low NO3--N. It significantly increased the gram-positive bacteria that responded to resistant organic matter, changed the bacterial community to enhance decomposition, detoxification, ureolysis, and denitrification, and to decrease nitrification. Its inhibition effect on nitrification activity was stronger than that on nitrifiers growth. Different from PW-S, the addition of PW-L seriously and significantly decreased seed germination index and fungal biomass that responded to N retaining capacity, respectively. The best fertilizer was 50% urea +50% PW-S that supported the seed germination and seedling growth, and mildly affected microbial community.
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Affiliation(s)
- Hua Huang
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan'an, 716000, Shaanxi, China
| | - Qianyi Su
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Jiannan Li
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Zhirui Niu
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan'an, 716000, Shaanxi, China.
| | - Dandan Wang
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Chenfei Wei
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Siyu Long
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Jingyu Ren
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China; Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan'an, 716000, Shaanxi, China
| | - Jian Wang
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Baoqin Shan
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Yani Li
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Yu Liu
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Qian Li
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
| | - Yongtao Zhang
- School of Petroleum Engineering and Environmental Engineering, Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an key laboratory of environmental monitoring and remediation, Yan'an University, Yan'an, 716000, Shaanxi, China
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Chen S, Li D, He H, Zhang Q, Lu H, Xue L, Feng Y, Sun H. Substituting urea with biogas slurry and hydrothermal carbonization aqueous product could decrease NH 3 volatilization and increase soil DOM in wheat growth cycle. ENVIRONMENTAL RESEARCH 2022; 214:113997. [PMID: 35934142 DOI: 10.1016/j.envres.2022.113997] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/19/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Biogas slurry (BS) and hydrothermal carbonization aqueous products (HAP), which are rich in nitrogen (N) and dissolved organic matter (DOM), can be used as organic fertilizer to substitute inorganic N fertilizer. To evaluate the effects of co-application of BS and HAP on the ammonia (NH3) volatilization and soil DOM content in wheat growth season, we compared six treatments that substituting 50%, 75%, and 100% of urea-N with BS plus HAP at low (L) or high (H) ratio, named BCL50, BCL75, BCL100, BCH50, BCH75, BCH100, respectively. Meanwhile, urea alone treatment was set as the control (CKU). The results showed that both BCL and BCH treatments significantly mitigate the NH3 volatilizations by 9.1%-45.6% in comparison with CKU (P < 0.05), whose effects were correlated with soil NH4+-N content. In addition, the decrease in soil urease activity contributed to the lower NH3 volatilization following application of BS plus HAP. Notably, BS plus HAP applications increased the microbial byproduct- and humic acid-like substances in soil by 9.9%-74.5% and 100.7%-451.9%, respectively. Consequently, BS and HAP amended treatments significantly increased soil humification index and DOM content by 13.7%-41.2% and 38.4%-158.7%, respectively (P < 0.05). This study suggested that BS and HAP could be co-applied into agricultural soil as a potential alternative of inorganic fertilizer N, which can decrease NH3 loss but increase soil fertility.
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Affiliation(s)
- Sen Chen
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Detian Li
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Huayong He
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Qiuyue Zhang
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - Haiying Lu
- College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China.
| | - Lihong Xue
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Yanfang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Haijun Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
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Zhang J, Fan X, Wang X, Tang Y, Zhang H, Yuan Z, Zhou J, Han Y, Li T. Bioremediation of a saline-alkali soil polluted with Zn using ryegrass associated with Fusariumincarnatum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 312:119929. [PMID: 35977634 DOI: 10.1016/j.envpol.2022.119929] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/29/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Biotechnological strategies have become effective in the remediation of polluted soils as they are cost-effective and do not present a risk of secondary pollution. However, using a single bioremediation technique (microorganism or plant) is not suitable for achieving a high remediation rate of polluted saline-alkali soils with heavy metals. Therefore, the present study aims to assess the effects and mechanisms of combined ryegrass and Fusarium incarnatum on the zinc (Zn)-polluted saline-alkali soil over 45 days. According to the obtained results, the combined Fusarium incarnatum-ryegrass showed the highest remediation rate of 49.35% after 45 days, resulting in a significantly lower soil Zn concentration than that observed in the control group. In addition, the inoculation of Fusarium incarnatum showed a positive effect on the soil EPS secretion. The soil protein contents ranged from 0.035 to 0.055 mg/kg, while the soil polysaccharide contents increased from 0.25 to 0.61 mg/g. The soil microbial flora and ryegrass showed resistance to saline and alkaline stresses through the secretion of extracellular polysaccharides. The three-dimensional fluorescence spectrum (3D-EEM) confirmed that EPS in the soil was mainly a fulvic acid-like substance. The fluorescein diacetate (FDA) hydrolase activity in the saline-alkali soil was first increased due to the effect of Fusarium incarnatum and then decreased to a minimum value of 96 μg/(g·h). In addition, the Fusarium incarnatum inoculation improved the diversity and richness of soil fungi. Although the Fusarium incarnatum inoculation had a slight effect on the germination of ryegrass, it increased the biomass and enrichment coefficient. The results revealed a translocation factor (TF) value of 0.316 at 45 days after ryegrass sowing, showing significant enrichment of the soil Zn heavy metal zinc in the ryegrass roots.
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Affiliation(s)
- Jinxuan Zhang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
| | - Xiaodan Fan
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin, China; Municipal Experimental Teaching Demonstration Center of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China; Tianjin International Joint Research and Development Center, Tianjin, China.
| | - Xueqi Wang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
| | - Yinbing Tang
- Tianjin Enshui Environmental Protection Technology Co.Ltd., Tianjin, 300381, China
| | - Hao Zhang
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
| | - Zhengtong Yuan
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
| | - Jiaying Zhou
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
| | - Yibo Han
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
| | - Teng Li
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, China
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Zeng W, Qiu J, Wang D, Wu Z, He L. Ultrafiltration concentrated biogas slurry can reduce the organic pollution of groundwater in fertigation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151294. [PMID: 34756907 DOI: 10.1016/j.scitotenv.2021.151294] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/07/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
Biogas slurry has the problems of having a low concentration, having a large production volume, and containing many small-molecule organic pollutants. During the fertigation process of biogas slurry, many small-molecule organic pollutants may pose potential pollution risks to groundwater. In this study, the ultrafiltration membrane technology was used to separate small-molecule organics in the biogas slurry to prepare ultrafiltration concentrated biogas slurry (UCBS). To research the impact of UCBS and raw biogas slurry (RBS) on the small-molecule organic pollution of groundwater, a laboratory soil column simulation leaching device was used to conduct leaching experiments with 4 types of UCBS and RBS in acric ferralsols and hydragric anthrosols for two quarters (8 fertilization periods). The results of the study show that both UCBS and RBS caused nitrate pollution to groundwater. UCBS has a lower risk of organic pollution to groundwater than RBS. Irrigating UCBS in hydragric anthrosols has a higher risk of organic pollution of groundwater than that in acric ferralsols. Analysis of the molecular weight distribution of dissolved organic matter (DOM) in the leaching solution showed that the organic pollutants were mainly small molecules <10 kDa. According to 3D excitation-emission matrix (3D-EEM) analysis, the main organic pollutants in the leaching solution were fulvic acid, microbial protein metabolites and humic acid organic compounds. The research results show that the pretreatment of biogas slurry by ultrafiltration can reduce the risk of small-molecule organic pollution of groundwater in land application, which can provide a new scientific basis to standardize biogas slurry land application technical guidelines and reduce groundwater pollution.
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Affiliation(s)
- Weishen Zeng
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510642, China
| | - Jinrong Qiu
- South China Institute of Environmental Sciences, MEE, Guangzhou 510642, China
| | - Dehan Wang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510642, China.
| | - Zhaoyun Wu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510642, China
| | - Lintong He
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510642, China
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