1
|
Wang X, Li X, Hao P, Duan X, Gao Y, Liang X. Cellulosimicrobium sp. Strain L1: A Study on the Optimization of the Conditions and Performance of a Combined Biological Trickling Filter for Hydrogen Sulfide Degradation. Microorganisms 2024; 12:1513. [PMID: 39203356 PMCID: PMC11356333 DOI: 10.3390/microorganisms12081513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/12/2024] [Accepted: 07/18/2024] [Indexed: 09/03/2024] Open
Abstract
Sulfide is a toxic and hazardous substance in the agricultural environment, which can cause damage to humans and livestock when exposed to large amounts of air. In this study, we performed one-factor optimization of the culture conditions and culture fractions of the Cellulosimicrobium sp. strain L1 and combined it with a biological trickling filter cell for the degradation of hydrogen sulfide for 24 consecutive days. The degradation effect of strain L1 and the biological trickling filter (BTF) on hydrogen sulfide was investigated, and the changes in intermediate products in the degradation process were briefly analyzed. The results showed that strain L1 had the highest conversion efficiency when incubated with 3 g/L sucrose as the carbon source and 1 g/L NH4Cl as the nitrogen source at a temperature of 35 °C, an initial pH of 5, and a NaCl concentration of 1%. The concentration of thiosulfate increased and then decreased during the degradation process, and the concentration of sulfate increased continuously. When strain L1 was applied to the biological trickling filter, it could degrade 359.53 mg/m3 of H2S. This study provides a deeper understanding of sulfide degradation in biological trickling filters and helps promote the development of desulfurization technology and the treatment of malodorous gasses produced by the accumulation of large quantities of livestock manure.
Collapse
Affiliation(s)
- Xuechun Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Xintian Li
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Peng Hao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Xinran Duan
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Yunhang Gao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Xiaojun Liang
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry, Yinchuan 750002, China
| |
Collapse
|
2
|
Zhu L, Wang X, Liu L, Le B, Tan C, Dong C, Yao X, Hu B. Fungi play a crucial role in sustaining microbial networks and accelerating organic matter mineralization and humification during thermophilic phase of composting. ENVIRONMENTAL RESEARCH 2024; 254:119155. [PMID: 38754614 DOI: 10.1016/j.envres.2024.119155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
Fungi play an important role in the mineralization and humification of refractory organic matter such as lignocellulose during composting. However, limited research on the ecological role of fungi in composting system hindered the development of efficient microbial agents. In this study, six groups of lab-scale composting experiments were conducted to reveal the role of fungal community in composting ecosystems by comparing them with bacterial community. The findings showed that the thermophilic phase was crucial for organic matter degradation and humic acid formation. The Richness index of the fungal community peaked at 1165 during this phase. PCoA analysis revealed a robust thermal stability in the fungal community. Despite temperature fluctuations, the community structure, predominantly governed by Pichia and Candida, remained largely unaltered. The stability of fungal community and the complexity of ecological networks were 1.26 times and 5.15 times higher than those observed in bacterial community, respectively. Fungi-bacteria interdomain interaction markedly enhanced network complexity, contributing to maintain microbial ecological functions. The core fungal species belonging to the family Saccharomycetaceae drove interdomain interaction during thermophilic phase. This study demonstrated the key role of fungi in the composting system, which would provide theoretical guidance for the development of high efficiency composting agents to strengthen the mineralization and humification of organic matter.
Collapse
Affiliation(s)
- Lin Zhu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaohan Wang
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Liyuan Liu
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Boyi Le
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chunxu Tan
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chifei Dong
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiangwu Yao
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Baolan Hu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China.
| |
Collapse
|
3
|
Zhu L, Zhao Y, Chen S, Miao X, Fang Z, Yao X, Dong C, Hu B. Alternating ventilation accelerates the mineralization and humification of food waste by optimizing the temperature-oxygen-moisture distribution in the static composting reactor. BIORESOURCE TECHNOLOGY 2024; 393:130050. [PMID: 37989420 DOI: 10.1016/j.biortech.2023.130050] [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: 09/03/2023] [Revised: 11/06/2023] [Accepted: 11/15/2023] [Indexed: 11/23/2023]
Abstract
Traditional unidirectional ventilation often leads to the loss of heat and moisture during composting, disrupting the favorable microenvironment required for aerobic microbes. This study developed a pulse alternating ventilation composting reactor and investigated the effects of alternating ventilation on composting efficiency compared with upward ventilation and downward ventilation. The results demonstrated that alternating ventilation stabilized the moisture content at approximately 60 % while reducing the temperature and oxygen concentration range within the reactor. Moreover, it extended the duration of high-temperature (>50 °C) by 31 % and 75 % compared to other two groups. It improved the microbial cooperation intensity and stimulated the core microbe (Tepidimicrobium). Seed germination index (GI) of the compost was improved (GI = 91.27 %), and the humic acid content was 1.23 times and 1.37 times higher than other two groups. These results showed that alternating ventilation can be used for efficient resource disposal of food waste.
Collapse
Affiliation(s)
- Lin Zhu
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuxiang Zhao
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Siyin Chen
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xinyin Miao
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhou Fang
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiangwu Yao
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chifei Dong
- College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Baolan Hu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China.
| |
Collapse
|
4
|
Xi Z, Dou L, Zhang M, Pan L. Desulfurization properties, pathways, and potential applications of two novel and efficient chemolithotrophic sulfur-oxidizing strains of Pseudomonas sp. GHWS3 and Sphingobacterium sp. GHWS5. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3495-3511. [PMID: 38085488 DOI: 10.1007/s11356-023-31404-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 12/03/2023] [Indexed: 01/19/2024]
Abstract
With the accelerated modernization of agriculture and industry, sulfides have been released into the environment as a by-products of various production processes. Elevated levels of sulfide pose a threat to organisms' health and disrupt ecosystem equilibrium. This study successfully isolated two highly efficient sulfur-oxidizing strains, namely Pseudomonas aeruginosa GHWS3 and Sphingobacterium sp. GHWS5. Neither strain exhibited hemolytic activity or pathogenicity. Additionally, GHWS3 inhibited the common aquaculture pathogen Vibrio anguillarum, while GHWS5 exhibited inhibitory effects against Vibrio harveyi. GHWS3 and GHWS5 demonstrated effective removal of sulfide under the following conditions: temperature range of 20-40 °C, pH level of 4.5-8.5, salinity range of 0-50‰, C/N ratio of 5-15, and sulfide concentration of 20-200 mg/L. By amplifying the key functional genes of the sulfur-oxidizing Sox and rDsr systems in both GHWS3 and GHWS5 strains, potential desulfurization pathways were analyzed. Furthermore, both strains displayed high efficiency in removing sulfides from actual aquaculture pond substrate mixtures. The findings of this study provide two promising candidate strains for sulfides removal from farm tailwater, industrial wastewater, and domestic wastewater.
Collapse
Affiliation(s)
- Zeyan Xi
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Le Dou
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Mengyu Zhang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Luqing Pan
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
- Fisheries College, Ocean University of China, Yushan Road 5, Qingdao, 266003, China.
| |
Collapse
|
5
|
Johnston KKY, van Lankveld M, de Rink R, Roman P, Klok JBM, Mol AR, Keesman KJ, Buisman CJN. Polysulfide Concentration and Chain Length in the Biological Desulfurization Process: Effect of Biomass Concentration and the Sulfide Loading Rate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:13530-13540. [PMID: 37639370 PMCID: PMC10501124 DOI: 10.1021/acs.est.3c03017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023]
Abstract
Removal of hydrogen sulfide (H2S) can be achieved using the sustainable biological desulfurization process, where H2S is converted to elemental sulfur using sulfide-oxidizing bacteria (SOB). A dual-bioreactor process was recently developed where an anaerobic (sulfidic) bioreactor was used between the absorber column and micro-oxic bioreactor. In the absorber column and sulfidic bioreactor, polysulfides (Sx2-) are formed due to the chemical equilibrium between H2S and sulfur (S8). Sx2- is thought to be the intermediate for SOB to produce sulfur via H2S oxidation. In this study, we quantify Sx2-, determine their chain-length distribution under high H2S loading rates, and elucidate the relationship between biomass and the observed biological removal of sulfides under anaerobic conditions. A linear relationship was observed between Sx2- concentration and H2S loading rates at a constant biomass concentration. Increasing biomass concentrations resulted in a lower measured Sx2- concentration at similar H2S loading rates in the sulfidic bioreactor. Sx2- of chain length 6 (S62-) showed a substantial decrease at higher biomass concentrations. Identifying Sx2- concentrations and their chain lengths as a function of biomass concentration and the sulfide loading rate is key in understanding and controlling sulfide uptake by the SOB. This knowledge will contribute to a better understanding of how to reach and maintain a high selectivity for S8 formation in the dual-reactor biological desulfurization process.
Collapse
Affiliation(s)
- Kestral
A. K. Y. Johnston
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| | - Mark van Lankveld
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Rieks de Rink
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Pawel Roman
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| | - Johannes B. M. Klok
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| | - Annemerel R. Mol
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
| | - Karel J. Keesman
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
- Mathematical
and Statistical Methods − Biometris, Wageningen University & Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - Cees J. N. Buisman
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| |
Collapse
|
6
|
Hu X, Yang H, Fang X, Shi T, Tan K. Recovery of bio‑sulfur and metal resources from mine wastewater by sulfide biological oxidation-alkali flocculation: A pilot-scale study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162546. [PMID: 36870505 DOI: 10.1016/j.scitotenv.2023.162546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
Mine wastewater treatment using bio-sulfate reduction technology forms sulfur-containing wastewater that comprises sulfides (HS- and S2-) and metal ions. Bio‑sulfur generated by sulfur-oxidizing bacteria in such wastewater is usually negatively charged hydrocolloidal particles. However, bio‑sulfur and metal resource recovery are difficult using traditional methods. In this study, the sulfide biological oxidation-alkali flocculation (SBO-AF) method was investigated to recover the above resources, and to provide a technical reference for mine wastewater resource recovery and heavy metal pollution control. Specifically, the performance of SBO in forming bio‑sulfur and the key parameters of SBO-AF were explored and then applied in a pilot-scale process to recover resources from wastewater. Results show that partial sulfide oxidation was achieved under a sulfide loading rate of 5.08 ± 0.39 kg/m3·d, dissolved oxygen of 2.9-3.5 mg/L and temperature of 27-30 °C. The average sulfide oxidation rate and sulfur selectivity ratio were 92.86 % and 90.22 %, respectively. At pH 10, metal hydroxide and bio‑sulfur colloids co-precipitated through the precipitation catching and adsorption charge neutralization effect. The average manganese, magnesium and aluminum concentrations and turbidity in the wastewater were 53.93 mg/L, 522.97 mg/L, 34.20 mg/L and 505 NTU, respectively, and decreased to 0.49 mg/L, 80.65 mg/L, 1.00 mg/L and 23.33 NTU, respectively, after treatment. The recovered precipitate mainly contained sulfur, along with metal hydroxides. The average sulfur, manganese, magnesium and aluminum contents were 45.6 %, 29.5 %, 15.1 % and 6.5 %, respectively. Economic feasibility analysis and the above results show that SBO-AF has obvious technical and economic advantages in the recovery resources from mine wastewater.
Collapse
Affiliation(s)
- Xin Hu
- Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Hong Yang
- Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Xiaoyue Fang
- Beijing General Municipal Engineering Design & Research Institute Co.,Ltd, Beijing 100044, China
| | - Tongyu Shi
- Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Keyan Tan
- Key Laboratory of Eco-Geochemistry, National Research Center for Geoanalysis, Ministry of Natural Resources, Beijing 100037, China
| |
Collapse
|
7
|
Ren Z, Yuan Q, Dai C, Zhu L. Experimental and Theoretical Density Functional Theory Approaches for Desulfurization of Dibenzothiophene from Diesel Fuel with Imidazole-Based Heteropolyacid Catalysts. ACS OMEGA 2023; 8:5593-5606. [PMID: 36816690 PMCID: PMC9933085 DOI: 10.1021/acsomega.2c06893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Oxidative desulfurization (ODS) has been proved to be an efficient strategy for the removal of aromatic sulfur compounds from diesel oils, which are one of the main sources of air pollution. Heteropolyacid catalysts are highly active species for ODS, but the promotion of their catalytic activity and clarification of their catalytic mechanism remain an important issue. Herein, a series of novel imidazole-based heteropolyacid catalysts are prepared by a one-pot method for multiphase deep ODS of fuel with hydrogen peroxide as an oxidant. The experimental results show that the desulfurization performance of the prepared imidazole-based heteropolyacid catalysts is high up to 99.9% under mild conditions. The catalyst also possesses excellent recovery performance, and the desulfurization activity remains at 97.7% after being recycled seven times. Furthermore, density functional theory calculation is first employed to clarify the origin of the high desulfurization activity, and the results show that with the imidazole-based heteropolyacid (HPW-VIM) as the catalyst, the energy barrier is much lower than that with phosphotungstic acid (HPW) as the catalyst.
Collapse
Affiliation(s)
- Zhuoyi Ren
- College
of Chemistry and Chemical Engineering, Hainan
Normal University, Haikou571158, China
- Key
Laboratory of Water Pollution Treatment and Resource Reuse of Hainan
Province, Haikou571158, China
| | - Qibin Yuan
- College
of Chemistry and Chemical Engineering, Hainan
Normal University, Haikou571158, China
- Key
Laboratory of Water Pollution Treatment and Resource Reuse of Hainan
Province, Haikou571158, China
| | - Chunyan Dai
- College
of Chemistry and Chemical Engineering, Hainan
Normal University, Haikou571158, China
| | - Linhua Zhu
- College
of Chemistry and Chemical Engineering, Hainan
Normal University, Haikou571158, China
- Key
Laboratory of Water Pollution Treatment and Resource Reuse of Hainan
Province, Haikou571158, China
- Key
Laboratory of Functional Organic Polymers of Haikou, Haikou571158, China
| |
Collapse
|
8
|
Li W, Zhu L, Pan C, Chen W, Xu D, Kang D, Guo L, Mei Q, Zheng P, Zhang M. Insights into the Superior Bioavailability of Biogenic Sulfur from the View of Its Unique Properties: The Key Role of Trace Organic Substances. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:1487-1498. [PMID: 36629799 DOI: 10.1021/acs.est.2c07142] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Elemental sulfur (S0) is widely utilized in environmental pollution control, while its low bioavailability has become a bottleneck for S0-based biotechnologies. Biogenic sulfur (bio-S0) has been demonstrated to have superior bioavailability, while little is known about its mechanisms thus far. This study investigated the bioavailability and relevant properties of bio-S0 based on the denitrifying activity of Thiobacillus denitrificans with chemical sulfur (chem-S0) as the control. It was found that the conversion rate and removal efficiency of nitrate in the bio-S0 system were 2.23 and 2.04 times those of the chem-S0 system. Bio-S0 was not pure orthorhombic sulfur [S: 96.88 ± 0.25% (w/w)]. Trace organic substances detected on the bio-S0 surface were revealed to contribute to its hydrophilicity, resulting in better dispersibility in the aqueous liquid. In addition, the adhesion force of T. denitrificans on bio-S0 was 1.54 times that of chem-S0, endowing a higher bacterial adhesion efficiency on the sulfur particle. The weaker intermolecular binding force due to the low crystallinity of bio-S0 led to enhanced cellular uptake by attached bacteria. The mechanisms for the superior bioavailability of bio-S0 were further proposed. This study provides a comprehensive view of the superior bioavailability of bio-S0 and is beneficial to developing high-quality sulfur resources.
Collapse
Affiliation(s)
- Wenji Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Lin Zhu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Chao Pan
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Wenda Chen
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Dongdong Xu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Da Kang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing100124, China
| | - Leiyan Guo
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Qingqing Mei
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
- Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, Zhejiang310058, China
| | - Meng Zhang
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang310058, China
- Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, Zhejiang310058, China
| |
Collapse
|
9
|
Mol AR, Pruim SD, de Korte M, Meuwissen DJM, van der Weijden RD, Klok JBM, Keesman KJ, Buisman CJN. Removal of small elemental sulfur particles by polysulfide formation in a sulfidic reactor. WATER RESEARCH 2022; 227:119296. [PMID: 36351351 DOI: 10.1016/j.watres.2022.119296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
For over 30 years, biological gas desulfurization under halo-alkaline conditions has been studied and optimized. This technology is currently applied in already 270 commercial installations worldwide. Sulfur particle separation, however, remains a challenge; a fraction of sulfur particles is often too small for liquid-solid separation with conventional separation technology. In this article, we report the effects of a novel sulfidic reactor, inserted in the conventional process set-up, on sulfur particle size and morphology. In the sulfidic reactor polysulfide is produced by the reaction of elemental sulfur particles and sulfide, which is again converted to elemental sulfur in a gas-lift reactor. We analyzed sulfur particles produced in continuous, long term lab-scale reactor experiments under various sulfide concentrations and sulfidic retention times. The analyses were performed with laser diffraction particle size analysis and light microscopy. These show that the smallest particles (< 1 µm) have mostly disappeared under the highest sulfide concentration (4.1 mM) and sulfidic retention time (45 min). Under these conditions also agglomeration of sulfur particles was promoted. Model calculations with thermodynamic and previously derived kinetic data on polysulfide formation confirm the experimental data on the removal of the smallest particles. Under the 'highest sulfidic pressure', the model predicts that equilibrium conditions are reached between sulfur, sulfide and polysulfide and that 100% of the sulfur particles <1 µm are dissolved by the (autocatalytic) formation of polysulfides. These experiments and modeling results demonstrate that the insertion of a novel sulfidic reactor in the conventional process set-up promotes the removal of the smallest individual sulfur particles and promotes the production of sulfur agglomerates. The novel sulfidic reactor is therefore a promising process addition with the potential to improve process operation, sulfur separation and sulfur recovery.
Collapse
Affiliation(s)
- Annemerel R Mol
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Paqell B.V, Reactorweg 301, 3542 CE Utrecht, the Netherlands.
| | - Sebastian D Pruim
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands
| | - Milan de Korte
- Mathematical and Statistical Methods - Biometris, Wageningen University and Research, P.O. Box 16, 6700 AA Wageningen, the Netherlands
| | - Derek J M Meuwissen
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands
| | - Renata D van der Weijden
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Johannes B M Klok
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Paqell B.V, Reactorweg 301, 3542 CE Utrecht, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Karel J Keesman
- Mathematical and Statistical Methods - Biometris, Wageningen University and Research, P.O. Box 16, 6700 AA Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Cees J N Buisman
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| |
Collapse
|
10
|
Das J, Lens PNL. Resilience of hollow fibre membrane bioreactors for treating H 2S under steady state and transient conditions. CHEMOSPHERE 2022; 307:136142. [PMID: 36028125 DOI: 10.1016/j.chemosphere.2022.136142] [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: 02/28/2022] [Revised: 07/15/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
H2S removal performance by hollow fibre membrane bioreactors (HFMBs) was investigated for 271 days at ambient (20 ± 2 °C) temperature employing an inlet H2S concentrations up to 3600 ppmv and empty bed residence time (EBRT) of 187, 92 and 62 s. Different operating conditions including pH control (with or without), famine period, shock loads (4-72 h) and different biomass types (presence or absence of suspended biomass) were investigated. The H2S flux and mass-transfer coefficient were significantly higher for the biotic HFMBs (R1 and R2) compared to the abiotic control (R3) at all employed EBRTs. Significant differences in H2S removal efficiency (RE) and elimination capacity (EC) were noted for different inlet H2S concentrations, EBRTs, pH and biomass type. The HFMB achieved >99% RE at steady-state for biotic operation with an EC of 33.8, 30.0 and 30.9 g m-3 h-1 at an EBRT of 187, 92 and 62 s, respectively. Sulfate (92-93%) was the main sulfur species in the H2S bioconversion process. The HFMB showed a good resilience to shock loads and showed quick recovery (<24 h) after withdrawal of the shock loads. The HFMB had a critical loading rate of H2S about 135 g m-3 h-1 under transient-state.
Collapse
Affiliation(s)
- Jewel Das
- National University of Ireland Galway, University Road, H91 TK33, Galway, Ireland; Bangladesh Council of Scientific and Industrial Research (BCSIR), BCSIR Laboratories Chattogram, Chattogram 4220, Bangladesh.
| | - Piet N L Lens
- National University of Ireland Galway, University Road, H91 TK33, Galway, Ireland
| |
Collapse
|
11
|
Li J, Yao C, Song B, Zhang Z, Brock AL, Trapp S, Zhang J. Enrichment of sulfur-oxidizing bacteria using S-doped NiFe 2O 4 nanosheets as the anode in microbial fuel cell enhances power production and sulfur recovery. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:156973. [PMID: 35772559 DOI: 10.1016/j.scitotenv.2022.156973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/05/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Microbial fuel cells (MFCs) have great promise for power generation by oxidizing organic wastewater, yet the challenge to realize high efficiency in simultaneous energy production and resource recovery remains. In this study, we designed a novel MFC anode by synthesizing S-doped NiFe2O4 nanosheet arrays on carbon cloth (S10-NiFe2O4@CC) to build a three-dimensional (3D) hierarchically porous structure, with the aim to regulate the microbial community of sulfur-cycling microbes in order to enhance power production and elemental sulfur (S0) recovery. The S10-NiFe2O4@CC anode obtained a faster start-up time of 2 d and the highest power density of 4.5 W/m2 in acetate-fed and mixed bacteria-based MFCs. More importantly, sulfide removal efficiency (98.3 %) (initial concentration of 50 mg/L S2-) could be achieved within 3 d and sulfur (S8) could be produced. Microbial community analysis revealed that the S10-NiFe2O4@CC anode markedly enriched sulfur-oxidizing bacteria (SOB) and promoted enrichment of SOB and sulfate-reducing bacteria (SRB) in the bulk solution as well, leading to the enhancement of power generation and S0 recovery. This study shows how carefully designing and optimizing the composition and structure of the anode can lead to the enrichment of a multifunctional microbiota with excellent potential for sulfide removal and resource recovery.
Collapse
Affiliation(s)
- Jiaxin Li
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China; Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, 2800 Kongens Lyngby, Denmark; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chongchao Yao
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Bo Song
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhihao Zhang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Andreas Libonati Brock
- Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, 2800 Kongens Lyngby, Denmark
| | - Stefan Trapp
- Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, 2800 Kongens Lyngby, Denmark
| | - Jing Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China; Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| |
Collapse
|
12
|
Zhou J, Wu C, Pang S, Yang L, Yao M, Li X, Xia S, Rittmann BE. Dissimilatory and Cytoplasmic Antimonate Reductions in a Hydrogen-Based Membrane Biofilm Reactor. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:14808-14816. [PMID: 36201672 DOI: 10.1021/acs.est.2c04939] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A hydrogen-based membrane biofilm reactor (H2-MBfR) was operated to investigate the bioreduction of antimonate [Sb(V)] in terms of Sb(V) removal, the fate of Sb, and the pathways of reduction metabolism. The MBfR achieved up to 80% Sb(V) removal and an Sb(V) removal flux of 0.55 g/m2·day. Sb(V) was reduced to Sb(III), which mainly formed Sb2O3 precipitates in the biofilm matrix, although some Sb(III) was retained intracellularly. High Sb(V) loading caused stress that deteriorated performance that was not recovered when the high Sb(V) loading was removed. The biofilm community consisted of DSbRB (dissimilatory Sb-reduction bacteria), SbRB (Sb-resistant bacteria), and DIRB (dissimilatory iron-reducing bacteria). Dissimilatory antimonate reduction, mediated by the respiratory arsenate reductase ArrAB, was the main reduction route, but respiratory reduction coexisted with cytoplasmic Sb(V)-reduction mediated by arsenate reductase ArsC. Increasing Sb(V) loading caused stress that led to increases in the expression of arsC gene and intracellular accumulation of Sb(III). By illuminating the roles of the dissimilatory and cytoplasmic Sb(V) reduction mechanism in the biofilms of the H2-MBfR, this study reveals that the Sb(V) loading should be controlled to avoid stress that deteriorates Sb(V) reduction.
Collapse
Affiliation(s)
- Jingzhou Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Chengyang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Si Pang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Lin Yang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Mengying Yao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Xiaodi Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
| |
Collapse
|
13
|
Fan K, Xu X, Xu F, Shi J, Sun K, Fedorova I, Ren N, Lee DJ, Chen C. A novel intra- and extracellular distribution pattern of elemental sulfur in Pseudomonas sp. C27-driven denitrifying sulfide removal process. ENVIRONMENTAL RESEARCH 2022; 213:113674. [PMID: 35700768 DOI: 10.1016/j.envres.2022.113674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Pseudomonas sp. C27 can achieve the conversion of toxic sulfide to economical elemental sulfur (S0) with various electron acceptors. In this study the distribution pattern of S0 produced by C27 in denitrifying sulfide removal (DSR) process was explored. The SEM observation identified that the particle size of the biogenic S0 was at micron level. Strikingly, a novel distribution pattern of S0 was revealed that the produced S0 was not directly secreted extracellularly, but be stored temporarily in the cell interior. Pyrolysis at 65 °C for 20 min were recommended prior to S0 recovery, which could maximize the separation of extracellular polymeric substances (EPS) from C27. Furthermore, the effects of N/S molar ratio, initial sulfide concentration, and micro-oxygen condition were investigated to improve the production of S0 by C27. The highest S0 production was obtained at S/N of 3 and anaerobic condition seemed to favor the S0 production by C27. This study would provide a theoretical support for highly efficient sulfide removal as well as S0 recovery in sulfide-laden wastewater treatment.
Collapse
Affiliation(s)
- Kaili Fan
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Xijun Xu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Fan Xu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Jia Shi
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Kai Sun
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Irina Fedorova
- Department of Geoecology and Natural Resource Management, Saint Petersburg State University, Institute of Earth Science, Russia
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Chuan Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China.
| |
Collapse
|
14
|
Qian C, Jiang H, Chen Y, Zhao Y, Niu C, Liu C, Fang D, Chen Y, Peng Q, Wu K, Shen H, Shen B, Zhao J, Liu J, Ling H, Wang Y, Wu D, Sun H. Tuning Interaction and Diffusion for Dimethyl Disulfide Adsorption on Cu-BTC Frameworks via Low Transition-Metal Doping. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cheng Qian
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Jiang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuxiang Chen
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yang Zhao
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Cheng Niu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chuanlei Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Diyi Fang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yu Chen
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qilong Peng
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Kongguo Wu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Haitao Shen
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Benxian Shen
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- International Joint Research Center of Green Energy Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jigang Zhao
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- International Joint Research Center of Green Energy Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jichang Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- International Joint Research Center of Green Energy Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Ling
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- International Joint Research Center of Green Energy Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yiming Wang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Di Wu
- Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, Washington 99163, United States
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99163, United States
- Department of Chemistry, Washington State University, Pullman, Washington 99163, United States
- Materials Science and Engineering, Washington State University, Pullman, Washington 99163, United States
| | - Hui Sun
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- International Joint Research Center of Green Energy Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| |
Collapse
|
15
|
Liu Z, Yang M, Mu T, Liu J, Chen L, Miao D, Xing J. Organic layer characteristics and microbial utilization of the biosulfur globules produced by haloalkaliphilic Thioalkalivibrio versutus D301 during biological desulfurization. Extremophiles 2022; 26:27. [PMID: 35962820 DOI: 10.1007/s00792-022-01274-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 07/13/2022] [Indexed: 11/26/2022]
Abstract
The haloalkaliphilic genus Thioalkalivibrio, widely used in bio-desulfurization, can oxidize H2S to So, which is excreted outside cells in the form of biosulfur globules. As by-product of bio-desulfurization, information on biosulfur globules is still very scant, which limits its high-value utilization. In this paper, the characteristics of biosulfur globules produced by Thioalkalivibrio versutus D301 and the possibility of cultivating sulfur-oxidizing bacteria as a high biological-activity sulfur source were studied. The sulfur element in the biosulfur globules existed in the form α-S8, which was similar to chemical sulfur. The biosulfur globule was wrapped with an organic layer composed of polysaccharides and proteins. The composition of this organic layer could change. In the formation stage of biosulfur globules, the organic layer was dominated by polysaccharides, and in later stage, proteins became the main component. We speculated that the organic layer was mainly formed by the passive adsorption of organic matter secreted by cells. The existence of organic layer endowed biosulfur with better bioavailability. Compared with those found using chemical sulfur, the growth rates of Acidithiobacillus thiooxidans ATCC 19377T, Thiomicrospira microaerophila BDL05 and Thioalkalibacter halophilus BDH06 using biosulfur increased several folds to an order of magnitude, indicating that biosulfur was a good sulfur source for cultivating sulfur-oxidizing bacteria.
Collapse
Affiliation(s)
- Zhixia Liu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- School of Biology and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Maohua Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Tingzhen Mu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jinlong Liu
- School of Biology and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Linxu Chen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Delu Miao
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jianmin Xing
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
| |
Collapse
|
16
|
Schwarz A, Gaete M, Nancucheo I, Villa-Gomez D, Aybar M, Sbárbaro D. High-Rate Sulfate Removal Coupled to Elemental Sulfur Production in Mining Process Waters Based on Membrane-Biofilm Technology. Front Bioeng Biotechnol 2022; 10:805712. [PMID: 35340841 PMCID: PMC8942777 DOI: 10.3389/fbioe.2022.805712] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 02/08/2022] [Indexed: 11/13/2022] Open
Abstract
It is anticipated that copper mining output will significantly increase over the next 20 years because of the more intensive use of copper in electricity-related technologies such as for transport and clean power generation, leading to a significant increase in the impacts on water resources if stricter regulations and as a result cleaner mining and processing technologies are not implemented. A key concern of discarded copper production process water is sulfate. In this study we aim to transform sulfate into sulfur in real mining process water. For that, we operate a sequential 2-step membrane biofilm reactor (MBfR) system. We coupled a hydrogenotrophic MBfR (H2-MBfR) for sulfate reduction to an oxidizing MBfR (O2-MBfR) for oxidation of sulfide to elemental sulfur. A key process improvement of the H2-MBfR was online pH control, which led to stable high-rate sulfate removal not limited by biomass accumulation and with H2 supply that was on demand. The H2-MBfR easily adapted to increasing sulfate loads, but the O2-MBfR was difficult to adjust to the varying H2-MBfR outputs, requiring better coupling control. The H2-MBfR achieved high average volumetric sulfate reduction performances of 1.7-3.74 g S/m3-d at 92-97% efficiencies, comparable to current high-rate technologies, but without requiring gas recycling and recompression and by minimizing the H2 off-gassing risk. On the other hand, the O2-MBfR reached average volumetric sulfur production rates of 0.7-2.66 g S/m3-d at efficiencies of 48-78%. The O2-MBfR needs further optimization by automatizing the gas feed, evaluating the controlled removal of excess biomass and S0 particles accumulating in the biofilm, and achieving better coupling control between both reactors. Finally, an economic/sustainability evaluation shows that MBfR technology can benefit from the green production of H2 and O2 at operating costs which compare favorably with membrane filtration, without generating residual streams, and with the recovery of valuable elemental sulfur.
Collapse
Affiliation(s)
- Alex Schwarz
- Civil Engineering Department, Universidad de Concepción, Concepción, Chile
| | - María Gaete
- Civil Engineering Department, Universidad de Concepción, Concepción, Chile
| | - Iván Nancucheo
- Facultad de Ingeniería y Tecnología, Universidad San Sebastián, Concepción, Chile
| | - Denys Villa-Gomez
- School of Civil Engineering, The University of Queensland, Brisbane, QLD, Australia
| | - Marcelo Aybar
- Civil Engineering Department, Universidad de Concepción, Concepción, Chile
| | - Daniel Sbárbaro
- Electrical Engineering Department, Universidad de Concepción, Concepción, Chile
| |
Collapse
|
17
|
Chen W, Jin Y, Xu D, Li W, Pan C, Li Y, Kang D, Zhang M, Zeng Z, Shan S, Zheng P. Underlying function regulators of anaerobic granular sludge: Starvation and dormancy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:151024. [PMID: 34662610 DOI: 10.1016/j.scitotenv.2021.151024] [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: 06/12/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Anaerobic granular sludge (AnGS) is the core of anaerobic granular sludge bed system. In this study, the effect and its mechanism of stopping substrate supply on function of AnGS were investigated. The cutoff of exogenous substrate supply triggered AnGS to enter the dormant state. Some methanization microorganisms sporulated. The number and activity of methanization microorganisms based on 16S rDNA and 16S rRNA/16S rDNA ratio declined and stayed at 45.5% and 0.06% (bacteria), 48.7% and 0.39% (archaea) of the initial vegetative value, respectively. The resuming of exogenous substrate supply promoted AnGS to restore the vegetative state. The spores disappeared. The specific methanization activity of AnGS returned to the original level of 35.82 mL-CH4/g-VSS·d, but the delay time for gas production (DTGS) was prolonged from 9.54 to 18.04 h (0-132 d). The dormancy of methanization microorganisms was the main cause for the fluctuation of apparent function and the stability of intrinsic function of AnGS under starvation stress. The dormancy stabilized the structure and sustained the methanization community of AnGS via the reduction of EPS (structure binder/energy reserve) consumption.
Collapse
Affiliation(s)
- Wenda Chen
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Yihao Jin
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Dongdong Xu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Wenji Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Chao Pan
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Yiyu Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Da Kang
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Meng Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore
| | - Zhuo Zeng
- Department of Environmental Science & Engineering, Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Sichuan, China
| | - Shengdao Shan
- Key Lab Recycling & Ecotreatment Waste Biomass Zh, Zhejiang University of Science & Technology, Hangzhou 310023, China
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China.
| |
Collapse
|
18
|
Pan C, Xu D, Dong Z, Li W, Kang D, Chen W, Li Y, Zhang M, Hu B, Zheng P. Effect of temperature decrease on anammox granular sludge: Shock and adaptation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149242. [PMID: 34375252 DOI: 10.1016/j.scitotenv.2021.149242] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Cryopreservation is one of the effective methods for the preservation of anammox granular sludge (AnGS). However, the effects of cooling pretreatment on AnGS are still unclear. In this study, the effects of temperature decrease on AnGS property were investigated by designing different cooling modes: constant at room temperature 20-25 °C (CK), sharp cooling to 4 °C (S4), -20 °C (S20) and stepwise cooling to 4 °C (A4), -20 °C (A20). The results showed that compared with CK, the cooling modes in S4, S20, A4 and A20 improved the physical preservability of AnGS, slowing down the changes of color, shape and structure; and elevated the preservation rate of functional bacteria Planctomycetes (phylum level) and Candidatus Brocadia (genus level). The preservation rate of live cells in different experimental groups was 48.4 ± 1.8%(CK), 61.1 ± 3.3%(S4), 37.8 ± 0.8%(S20), 81.7 ± 4.8%(A4), 61.9 ± 3.1%(A20), respectively. The Anaerobic Ammonium Oxidation Bacteria (AnAOB) in the stepwise cooling mode (A4 and A20) were found to enter the dormant state and form "dormant zoogloea", while the AnAOB in the sharp cooling mode (S4 and S20) were observed to enter the shock state with a little change. The findings in this work (especially the dormant state of AnAOB) are helpful to understand the effect of temperature decrease on AnGS and to promote the development of AnGS preservation technology.
Collapse
Affiliation(s)
- Chao Pan
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Dongdong Xu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Ziyang Dong
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Wenji Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Da Kang
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Wenda Chen
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Yiyu Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Meng Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore
| | - Baolan Hu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China.
| |
Collapse
|
19
|
Guo Y, Liu X, Li J, Hu B. Optimization study on deep extractive oxidative desulfurization with tetrabutylammonium bromide/polyethylene glycol DES. RSC Adv 2021; 11:31727-31737. [PMID: 35496838 PMCID: PMC9042028 DOI: 10.1039/d1ra05295k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/05/2021] [Indexed: 11/21/2022] Open
Abstract
Green, efficient and inexpensive desulfurizing solvents have always been a considerable focus of petroleum desulfurization research. In this study, a series of deep eutectic solvents (DESs) based on tetrabutylammonium bromide (TBAB)/polyethylene glycol 200 (PEG-200) with different molar ratios were synthesized and characterized by Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy. Dibenzothiophene (DBT) was removed deeply as the classic sulfide in model oil, and H2O2 was fully utilized by the new TBAB/PEG-200 desulfurization system in step extractive oxidative desulfurization. The reaction conditions were optimized further, and O/S = 8, DES/oil = 1 : 5, 40 °C and 75 minutes were chosen as the best reaction conditions. Meanwhile, other organic sulfides in crude oil were also removed, and the removal rates of DBT, 4,6-dimethyldibenzothiophene and benzothiophene were 99.65%, 96.71% and 93.52%, respectively. The DES was reused 7 times, and the desulfurization efficiency of the regenerated DES for DBT was maintained at 98.14%. Finally, the possible mechanism of the synergistic effect of two kinds of hydrogen bonds and the oxidant was proposed. Green, efficient and inexpensive desulfurizing solvents have always been a considerable focus of petroleum desulfurization research.![]()
Collapse
Affiliation(s)
- Yanwen Guo
- School of Materials and Chemical Engineering, Hubei University of Technology Wuhan 430068 China
| | - Xingjian Liu
- School of Materials and Chemical Engineering, Hubei University of Technology Wuhan 430068 China
| | - Jingwen Li
- School of Materials and Chemical Engineering, Hubei University of Technology Wuhan 430068 China
| | - Bing Hu
- School of Materials and Chemical Engineering, Hubei University of Technology Wuhan 430068 China
| |
Collapse
|
20
|
Zhang L, Qiu YY, Zhou Y, Chen GH, van Loosdrecht MCM, Jiang F. Elemental sulfur as electron donor and/or acceptor: Mechanisms, applications and perspectives for biological water and wastewater treatment. WATER RESEARCH 2021; 202:117373. [PMID: 34243051 DOI: 10.1016/j.watres.2021.117373] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 06/06/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
Biochemical oxidation and reduction are the principle of biological water and wastewater treatment, in which electron donor and/or acceptor shall be provided. Elemental sulfur (S0) as a non-toxic and easily available material with low price, possesses both reductive and oxidative characteristics, suggesting that it is a suitable material for water and wastewater treatment. Recent advanced understanding of S0-respiring microorganisms and their metabolism further stimulated the development of S0-based technologies. As such, S0-based biotechnologies have emerged as cost-effective and attractive alternatives to conventional biological methods for water and wastewater treatment. For instance, S0-driven autotrophic denitrification substantially lower the operational cost for nitrogen removal from water and wastewater, compared to the conventional process with exogenous carbon source supplementation. The introduction of S0 can also avoid secondary pollution commonly caused by overdose of organic carbon. S0 reduction processes cost-effectively mineralize organic matter with low sludge production. Biological sulfide production using S0 as electron acceptor is also an attractive technology for metal-laden wastewater treatment, e.g. acid mine drainage. This paper outlines an overview of the fundamentals, characteristics and advances of the S0-based biotechnologies and highlights the functional S0-related microorganisms. In particular, the mechanisms of microorganisms accessing insoluble S0 and feasibility to improve S0 bio-utilization efficiency are critically discussed. Additionally, the research knowledge gaps, current process limitations, and required further developments are identified and discussed.
Collapse
Affiliation(s)
- Liang Zhang
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China; Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
| | - Yan-Ying Qiu
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China
| | - Yan Zhou
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
| | - Guang-Hao Chen
- Department of Civil and Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Mark C M van Loosdrecht
- Department of Biotechnology, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, the Netherlands
| | - Feng Jiang
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China.
| |
Collapse
|
21
|
Zhao Y, Wang J, Liu Y, Zheng P, Hu B. Microbial interaction promotes desulfurization efficiency under high pH condition. ENVIRONMENTAL RESEARCH 2021; 200:111423. [PMID: 34118244 DOI: 10.1016/j.envres.2021.111423] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/22/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
The existence of H2S in biogas may cause equipment corrosion and considerable SO2 emission. Commonly used biotrickling filters may cause biogas dilution or generation of explosive mixtures. Compared with biotrickling filters, two-step process such as bioscrubber filters can overcome these shortages. However, its removal efficiency was still limited due to low microbial activity under high pH condition. Here, a bioreactor filter was carried out under pH 9.0. Removal efficiency higher than 99% was achieved under sulfide loading rate reaching 4.24 kg S m-3d-1. Results of network and high throughput sequencing showed that Thiobacillus acted as both dominant species (accounting for 75%) and unique kinless hub in this bioreactor. Other bacteria (accounting for 25%) contributed 75% to the network, which implied the intensive interaction between Thiobacillus and others. Sulfide removal ability and pH tolerance of pure bacteria and mixed culture were considered to verify how microbial interaction influenced them. Compared with pure bacteria, mixed culture had better performance under high pH condition, which confirmed that microbial interaction promoted desulfurization efficiency under high pH condition. These results showed that intensive microbial interaction might be the key to enhance sulfide removal efficiency under high pH condition.
Collapse
Affiliation(s)
- Yuxiang Zhao
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Jiaqi Wang
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Yan Liu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Ping Zheng
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Baolan Hu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China; Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China.
| |
Collapse
|
22
|
Validation of effective role of substrate concentrations on elemental sulfur generation in simultaneous sulfide and nitrate removal process. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118698] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|