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Cai X, Zhou H, Lou Y, Lu B, Zhang D, Wang J, Xing D. Microbiome and antibiotic resistome in bioelectrochemical toilets for onsite treatment of fecal sludge. WATER RESEARCH 2024; 260:121956. [PMID: 38906081 DOI: 10.1016/j.watres.2024.121956] [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: 12/28/2023] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 06/23/2024]
Abstract
Effective management of fecal sludge (FS) is essential for preventing environmental and public health risks. Developing safe and efficient FS treatment technology is crucial for reducing the health risks of onsite sanitation systems. In this study, bioelectrochemical toilets (BETs) were developed to treat FS onsite. Compared with the open-circuit BETs (OC-BETs), BETs exhibited higher removal efficiencies for total organic carbon, total nitrogen, and total phosphorus. Specifically, the enhancements in removal efficiencies were 18.82 ± 1.73 %, 7.28 ± 0.32 %, and 11.41 ± 0.05 % for urine, and 19.28 ± 4.08 %, 21.65 ± 1.23 %, and 24.68 ± 0.95 % for feces, respectively. Microbiome analysis indicated that the dominant populations were affiliated with electroactive bacteria (Desulfuromonas and Pseudomonas) in the electrode biofilm of BETs. The species co-occurrence network showed that the electrode biofilm microbiome in BETs had more complex correlations than that in OC-BETs, suggesting that a weak electrical current enhanced the microbiome stability. The relative abundance of antibiotic resistance genes in BETs and OC-BETs reduced by 59.85 ± 1.32 % and 53.01 ± 2.81 % compared with the initial FS, respectively. These findings indicate that BETs are an alternative system for enhancing onsite treatment of fecal sludge and provide a theoretical foundation for the implementation of BETs.
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Affiliation(s)
- Xiaoyu Cai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Huihui Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yu Lou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Baiyun Lu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dawei Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jing Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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2
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Li Q, Xu Y, Chen S, Liang C, Guo W, Ngo HH, Peng L. Inorganic carbon limitation decreases ammonium removal and N 2O production in the algae-nitrifying bacteria symbiosis system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172440. [PMID: 38614328 DOI: 10.1016/j.scitotenv.2024.172440] [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: 02/05/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Ammonium removal by a symbiosis system of algae (Chlorella vulgaris) and nitrifying bacteria was evaluated in a long-term photo-sequencing batch reactor under varying influent inorganic carbon (IC) concentrations (15, 10, 5 and 2.5 mmol L-1) and different nitrogen loading rate (NLR) conditions (270 and 540 mg-N L-1 d-1). The IC/N ratios provided were 2.33, 1.56, 0.78 and 0.39, respectively, for an influent NH4+-N concentration of 90 mg-N L-1 (6.43 mmol L-1). The results confirmed that both ammonium removal and N2O production were positively related with IC concentration. Satisfactory ammonium removal efficiencies (>98 %) and rates (29-34 mg-N gVSS-1 h-1) were achieved regardless of NLR levels under sufficient IC of 10 and 15 mmol L-1, while insufficient IC at 2.5 mmol L-1 led to the lowest ammonium removal rates of 0 mg-N gVSS-1 h-1. The ammonia oxidation process by ammonia oxidizing bacteria (AOB) played a predominant role over the algae assimilation process in ammonium removal. Long-time IC deficiency also resulted in the decrease in biomass and pigments of algae and nitrifying bacteria. IC limitation led to the decreasing N2O production, probably due to its negative effect on ammonia oxidation by AOB. The optimal IC concentration was determined to be 10 mmol L-1 (i.e., IC/N of 1.56, alkalinity of 500 mg CaCO3 L-1) in the algae-bacteria symbiosis reactor, corresponding to higher ammonia oxidation rate of ∼41 mg-N gVSS-1 h-1 and lower N2O emission factor of 0.13 %. This suggests regulating IC concentrations to achieve high ammonium removal and low carbon emission simultaneously in the algae-bacteria symbiosis wastewater treatment process.
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Affiliation(s)
- Qi Li
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
| | - Yifeng Xu
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China.
| | - Shi Chen
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
| | - Chuanzhou Liang
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Lai Peng
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China; Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China.
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3
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Mattos de Oliveira Cruz L, Oliveira Menezes R, Salgado Duarte T, Camargo Bueno DA. Methods Influence in Surface Area Result from Polyurethane Used as Support Media. ACS OMEGA 2024; 9:14766-14770. [PMID: 38585129 PMCID: PMC10993272 DOI: 10.1021/acsomega.3c06098] [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: 08/17/2023] [Revised: 10/23/2023] [Accepted: 01/10/2024] [Indexed: 04/09/2024]
Abstract
We evaluated if different measurement methods influence the surface area results from a polyurethane sponge used as support media in biofilm reactors. The surface area values are normally used to characterize and present advantages from supported medias. However, the methodology to determine it is barely discussed. We compared two specific surface area methodologies: Brunauer-Emmett-Teller (BET) and analysis of images obtained by a scanning electron microscope (SEM). Specific surface area by BET was 93769.1 m2 m-3 (average); for SEM methodology, 10586.6 m2 m-3. The BET value was higher than expected in reality, and the SEM method result was more suitable and used as data input in a mathematical modeling.
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Affiliation(s)
- Luana Mattos de Oliveira Cruz
- School of Civil Engineering,
Architecture and Urban Planning − FECFAU, UNICAMP (University of Campinas). Avenida Albert Einstein, 951, Cidade Universitária
“Zeferino Vaz”, P.O. Box 6021, 13083-852 Campinas, SP, Brazil
| | - Rosana Oliveira Menezes
- School of Civil Engineering,
Architecture and Urban Planning − FECFAU, UNICAMP (University of Campinas). Avenida Albert Einstein, 951, Cidade Universitária
“Zeferino Vaz”, P.O. Box 6021, 13083-852 Campinas, SP, Brazil
| | - Tammy Salgado Duarte
- School of Civil Engineering,
Architecture and Urban Planning − FECFAU, UNICAMP (University of Campinas). Avenida Albert Einstein, 951, Cidade Universitária
“Zeferino Vaz”, P.O. Box 6021, 13083-852 Campinas, SP, Brazil
| | - Daniel Augusto Camargo Bueno
- School of Civil Engineering,
Architecture and Urban Planning − FECFAU, UNICAMP (University of Campinas). Avenida Albert Einstein, 951, Cidade Universitária
“Zeferino Vaz”, P.O. Box 6021, 13083-852 Campinas, SP, Brazil
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4
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Espinosa-Ortiz EJ, Gerlach R, Peyton BM, Roberson L, Yeh DH. Biofilm reactors for the treatment of used water in space:potential, challenges, and future perspectives. Biofilm 2023; 6:100140. [PMID: 38078057 PMCID: PMC10704334 DOI: 10.1016/j.bioflm.2023.100140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 02/29/2024] Open
Abstract
Water is not only essential to sustain life on Earth, but also is a crucial resource for long-duration deep space exploration and habitation. Current systems in space rely on the resupply of water from Earth, however, as missions get longer and move farther away from Earth, resupply will no longer be a sustainable option. Thus, the development of regenerative reclamation water systems through which useable water can be recovered from "waste streams" (i.e., used waters) is sorely needed to further close the loop in space life support systems. This review presents the origin and characteristics of different used waters generated in space and discusses the intrinsic challenges of developing suitable technologies to treat such streams given the unique constrains of space exploration and habitation (e.g., different gravity conditions, size and weight limitations, compatibility with other systems, etc.). In this review, we discuss the potential use of biological systems, particularly biofilms, as possible alternatives or additions to current technologies for water reclamation and waste treatment in space. The fundamentals of biofilm reactors, their advantages and disadvantages, as well as different reactor configurations and their potential for use and challenges to be incorporated in self-sustaining and regenerative life support systems in long-duration space missions are also discussed. Furthermore, we discuss the possibility to recover value-added products (e.g., biomass, nutrients, water) from used waters and the opportunity to recycle and reuse such products as resources in other life support subsystems (e.g., habitation, waste, air, etc.).
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Affiliation(s)
- Erika J. Espinosa-Ortiz
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, USA
- Department of Chemical and Biological Engineering, Montana State University, Bozeman, MT, 59717, USA
| | - Robin Gerlach
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, USA
- Department of Chemical and Biological Engineering, Montana State University, Bozeman, MT, 59717, USA
| | - Brent M. Peyton
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, USA
- Department of Chemical and Biological Engineering, Montana State University, Bozeman, MT, 59717, USA
| | - Luke Roberson
- Exploration Research and Technology Directorate, NASA, Kennedy Space Center, 32899, USA
| | - Daniel H. Yeh
- Department of Civil & Environmental Engineering, University of South Florida, Tampa, FL, 33620, USA
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5
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Xu J, Yuan T, Wang L, Zhang C, Lei Z, Shimizu K, Zhang Z. Enhanced fixation of dissolved inorganic carbon by algal-bacterial aerobic granular sludge during treatment of low-organic-content wastewater. BIORESOURCE TECHNOLOGY 2023; 378:128951. [PMID: 36963698 DOI: 10.1016/j.biortech.2023.128951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
The microalgae-based wastewater treatment technologies are believed to contribute to carbon neutrality. This study investigated the inorganic carbon fixation performance in the algal-bacterial aerobic granular sludge (A-BAGS) process under cultivation at different concentrations of organic carbon (OC) and inorganic carbon (IC). The results indicated that A-BAGS in treating wastewater containing organics of 77 mg-C/L contributed little to the fixation of inorganic carbon, while the highest inorganic carbon removal efficiency of 50 % was achieved at the influent IC of 100 mg/L and OC of 7 mg/L. This high IC condition contributed to enhanced biomass growth rate and enhanced extracellular polymeric substances, while it did not affect the granular stability and nitrification efficiency. The microbial diversity was also largely enhanced. The results demonstrated the great potential of A-BAGS for simultaneous resource recovery in wastewater and inorganic carbon fixation, while operation conditions need to be further optimized.
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Affiliation(s)
- Jing Xu
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Tian Yuan
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
| | - Lanting Wang
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Chi Zhang
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Zhongfang Lei
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Kazuya Shimizu
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan; Faculty of Life Sciences, Toyo University, 1-1-1 Izumino, Oura-gun Itakura, Gunma 374-0193, Japan
| | - Zhenya Zhang
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
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6
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Rodrigues-Silva F, V M Starling MC, Amorim CC. Challenges on solar oxidation as post-treatment of municipal wastewater from UASB systems: Treatment efficiency, disinfection and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157940. [PMID: 35952890 PMCID: PMC9554792 DOI: 10.1016/j.scitotenv.2022.157940] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/05/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
The application of solar photo-Fenton as post-treatment of municipal secondary effluents (MSE) in developing tropical countries is the main topic of this review. Alternative technologies such as stabilization ponds and upflow anaerobic sludge blanket (UASB) are vastly applied in these countries. However, data related to the application of solar photo-Fenton to improve the quality of effluents from UASB systems are scarce. This review gathered main achievements and limitations associated to the application of solar photo-Fenton at neutral pH and at pilot scale to analyze possible challenges associated to its application as post-treatment of MSE generated by alternative treatments. To this end, the literature review considered studies published in the last decade focusing on CECs removal, toxicity reduction and disinfection via solar photo-Fenton. Physicochemical characteristics of effluents originated after UASB systems alone and followed by a biological post-treatment show significant difference when compared with effluents from conventional activated sludge (CAS) systems. Results obtained for solar photo-Fenton as post-treatment of MSE in developed countries indicate that remaining organic matter and alkalinity present in UASB effluents may pose challenges to the performance of solar advanced oxidation processes (AOPs). This drawback could result in a more toxic effluent. The use of chelating agents such as Fe3+-EDDS to perform solar photo-Fenton at neutral pH was compared to the application of intermittent additions of Fe2+ and both of these strategies were reported as effective to remove CECs from MSE. The latter strategy may be of greater interest in developing countries due to costs associated to complexing agents. In addition, more studies are needed to confirm the efficiency of solar photo-Fenton on the disinfection of effluent from UASB systems to verify reuse possibilities. Finally, future research urges to evaluate the efficiency of solar photo-Fenton at natural pH for the treatment of effluents from UASB systems.
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Affiliation(s)
- Fernando Rodrigues-Silva
- Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Maria Clara V M Starling
- Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Camila C Amorim
- Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil.
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7
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Shitu A, Zhang Y, Danhassan UA, Li H, Tadda MA, Ye Z, Zhu S. Synergistic effect of chitosan-based sludge aggregates CS@NGS inoculum accelerated the start-up of biofilm reactor treating aquaculture effluent: Insights into performance, microbial characteristics, and functional genes. CHEMOSPHERE 2022; 303:135097. [PMID: 35636603 DOI: 10.1016/j.chemosphere.2022.135097] [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] [Received: 02/11/2022] [Revised: 05/17/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
The moving bed bioreactor (MBBR) process has drawn more attention as a promising biological wastewater treatment process. Nevertheless, achieving quick start-up and microbial biofilm formation remains a significant challenge. Consequently, the present study investigated a novel chitosan-based natural sludge (CS@NGS) seeding strategy for the accelerated start-up of MBBR. Three identical bioreactors were employed; the first bioreactor was without sludge seed as the control (BR1), the second was inoculated only with sludge (BR2), and the third was inoculated with CS@NGS according to the proposed seeding method (BR3). All bioreactors were utilised to treat simulated recirculating aquaculture systems (RAS) effluent. Resultantly, the CS@NGS shortened the start-up period from over twenty to seven days due to the enhanced initial microbial adhesion and biofilm formation. Under optimal conditions, the ammonium removal in BR3 approached 100%, which was relatively higher than BR2 (96.35 ± 1.12%) and BR1 (92.56 ± 2.17%). Moreover, a low nitrite accumulation was exhibited in the effluents, approximately ≤0.03 mg L-1. The process performance correlated positively with core bacteria from the genera Nakamurella, Hyphomicrobium, Nitrospira, Paenarthrobacter, Rhodococcus, and Stenotrophobacter. The quantitative polymerase chain reaction (qPCR) results demonstrated that the CS@NGS enhanced the expressions of amoA, nxrB, nirK, nirS, narG, and napA nitrogen metabolism-related functional genes to varying degrees. The present study findings can assist the rapid start-up of aquaculture biofilters utilised to solve high nitrite and ammonia accumulation in recirculated water from industrial RAS.
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Affiliation(s)
- Abubakar Shitu
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China; Department of Agricultural and Environmental Engineering, Faculty of Engineering, Bayero University, Kano, Nigeria
| | - Yadong Zhang
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Umar Abdulbaki Danhassan
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Haijun Li
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Musa Abubakar Tadda
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China; Department of Agricultural and Environmental Engineering, Faculty of Engineering, Bayero University, Kano, Nigeria
| | - Zhangying Ye
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Songming Zhu
- Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture, Ministry of Agriculture, and Rural Affairs, Institute of Agricultural Bio-Environmental Engineering, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China.
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Kirim G, McCullough K, Bressani-Ribeiro T, Domingo-Félez C, Duan H, Al-Omari A, De Clippeleir H, Jimenez J, Klaus S, Ladipo-Obasa M, Mehrani MJ, Regmi P, Torfs E, Volcke EIP, Vanrolleghem PA. Mainstream short-cut N removal modelling: current status and perspectives. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:2539-2564. [PMID: 35576252 DOI: 10.2166/wst.2022.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This work gives an overview of the state-of-the-art in modelling of short-cut processes for nitrogen removal in mainstream wastewater treatment and presents future perspectives for directing research efforts in line with the needs of practice. The modelling status for deammonification (i.e., anammox-based) and nitrite-shunt processes is presented with its challenges and limitations. The importance of mathematical models for considering N2O emissions in the design and operation of short-cut nitrogen removal processes is considered as well. Modelling goals and potential benefits are presented and the needs for new and more advanced approaches are identified. Overall, this contribution presents how existing and future mathematical models can accelerate successful full-scale mainstream short-cut nitrogen removal applications.
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Affiliation(s)
- Gamze Kirim
- modelEAU, Université Laval, 1065 avenue de la Médecine, Québec, QC G1 V 0A6, Canada E-mail: ; CentrEau, Quebec Water Research Centre, 1065 avenue de la Médecine, Québec, QC G1 V 0A6, Canada
| | - Kester McCullough
- School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA; Hampton Roads Sanitation District, 1434 Air Rail Ave., Virginia Beach, VA 23455, USA
| | - Thiago Bressani-Ribeiro
- BioCo Research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Gent 9000, Belgium
| | - Carlos Domingo-Félez
- Department of Environmental Engineering, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Haoran Duan
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Ahmed Al-Omari
- Brown and Caldwell, 1725 Duke St. Suite 250, Alexandria, VA 22314, USA
| | - Haydee De Clippeleir
- DC Water and Sewer Authority, 5000 Overlook Ave., SW., Washington, DC 20032, USA
| | - Jose Jimenez
- Brown and Caldwell, 1725 Duke St. Suite 250, Alexandria, VA 22314, USA
| | - Stephanie Klaus
- Hampton Roads Sanitation District, 1434 Air Rail Ave., Virginia Beach, VA 23455, USA
| | - Mojolaoluwa Ladipo-Obasa
- DC Water and Sewer Authority, 5000 Overlook Ave., SW., Washington, DC 20032, USA; Department of Civil & Environmental Engineering, The George Washington University, 800 22nd Street NW, Washington, DC 20037, USA
| | - Mohamad-Javad Mehrani
- Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Ul. Narutowicza 11/12, Gdansk 80-233, Poland; Department of Urban Water and Waste Management, University of Duisburg-Essen, Universit¨atsstraße 15, 45141, Essen, Germany
| | - Pusker Regmi
- Brown and Caldwell, 1725 Duke St. Suite 250, Alexandria, VA 22314, USA
| | - Elena Torfs
- Centre for Advanced Process Technology for Urban Resource recovery (CAPTURE), Frieda Saeysstraat 1, Gent 9000, Belgium; BIOMATH, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent 9000, Belgium
| | - Eveline I P Volcke
- BioCo Research Group, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Gent 9000, Belgium; Centre for Advanced Process Technology for Urban Resource recovery (CAPTURE), Frieda Saeysstraat 1, Gent 9000, Belgium
| | - Peter A Vanrolleghem
- modelEAU, Université Laval, 1065 avenue de la Médecine, Québec, QC G1 V 0A6, Canada E-mail: ; CentrEau, Quebec Water Research Centre, 1065 avenue de la Médecine, Québec, QC G1 V 0A6, Canada
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9
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Xiao R, Zhu W, Xu S, Chai W, Tong Y, Zheng P, Lu H. Low strength wastewater anammox start-up by stepwise decrement in influent nitrogen: Biofilm formation mechanism and mathematical modelling. ENVIRONMENT INTERNATIONAL 2022; 158:106929. [PMID: 34649049 DOI: 10.1016/j.envint.2021.106929] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/25/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
The application of mainstream anammox process is hampered by its overlong start-up and instability under disturbance. A lab-scale mainstream anammox moving bed biofilm reactor (MBBR) was successfully started in 120 days with stepwise decrement in influent nitrogen concentration from sidestream to mainstream condition. The initial colonization by Candidatus Jettenia and filamentous fermenter Anaerolineaceae were potentially mediated by hydrophobic interaction and type IV pilus. Ca. Kuenenia with higher substrate affinity outcompeted Ca. Jettenia, and the predominant fermenters shifted to fermentative Ignavibacteriaceae in the mature biofilm. A novel mainstream anammox biofilm development (MABD) model was constructed to describe biofilm growth, population dynamics, and nitrogen removal performance. The simulation results suggested that higher inocula biomass (460-690 mgVSS·L-1), relative abundance of low-affinity AnAOB in the inocula (e.g., Ca. Jettenia, 1.3-2%), and the early-stage solids retention time (45-68 days) were desired to form thicker biofilm and improve effluent quality during 120-day mainstream anammox MBBR start-up. The mechanistic insights into biofilm formation and predictive power of the newly developed MABD model are of importance to the design and operation of mainstream anammox processes towards more biofilm biomass and higher nitrogen removal efficiency.
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Affiliation(s)
- Rui Xiao
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Wanlu Zhu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Shaoyi Xu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Wenbo Chai
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Yu Tong
- Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Huijie Lu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Environmental Engineering, College of Environmental Resource Sciences, Zhejiang University, 310058, Hangzhou, China.
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Collivignarelli MC, Abbà A, Caccamo FM, Calatroni S, Torretta V, Katsoyiannis IA, Carnevale Miino M, Rada EC. Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:10326. [PMID: 34639629 PMCID: PMC8508386 DOI: 10.3390/ijerph181910326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 11/21/2022]
Abstract
The interest in research on up-flow anaerobic sludge blanket (UASB) reactors is growing. The meta-analysis of bibliometric data highlighted the growing interest in four diverse topics: (i) energy recovery production; (ii) combination with other treatments; (iii) the study of processes for the removal of specific pollutants and, (iv) characterization of microbial community and granular sludge composition. In particular, the papers published in the first 6 months of 2021 on this process were selected and critically reviewed to highlight and discuss the results, the gaps in the literature and possible ideas for future research. Although the state of research on UASB is to be considered advanced, there are still several points that will be developed in future research such as the consolidation of the results obtained on a semi-industrial or real scale, the use of real matrices instead of synthetic ones and a more in-depth study of the effect of substances such as antibiotics on the microbiota and microbiome of UASB granular biomass. To date, few and conflicting data about the environmental footprint of UASB are available and therefore other studies on this topic are strongly suggested.
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Affiliation(s)
- Maria Cristina Collivignarelli
- Department of Civil Engineering and Architecture, University of Pavia, Via Ferrata 3, 27100 Pavia, Italy; (M.C.C.); (F.M.C.); (S.C.); (M.C.M.)
- Interdepartmental Centre for Water Research, University of Pavia, Via Ferrata 3, 27100 Pavia, Italy
| | - Alessandro Abbà
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, 25123 Brescia, Italy;
| | - Francesca Maria Caccamo
- Department of Civil Engineering and Architecture, University of Pavia, Via Ferrata 3, 27100 Pavia, Italy; (M.C.C.); (F.M.C.); (S.C.); (M.C.M.)
| | - Silvia Calatroni
- Department of Civil Engineering and Architecture, University of Pavia, Via Ferrata 3, 27100 Pavia, Italy; (M.C.C.); (F.M.C.); (S.C.); (M.C.M.)
| | - Vincenzo Torretta
- Department of Theoretical and Applied Sciences, Insubria University of Varese, Via G.B. Vico 46, 21100 Varese, Italy;
| | - Ioannis A. Katsoyiannis
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Marco Carnevale Miino
- Department of Civil Engineering and Architecture, University of Pavia, Via Ferrata 3, 27100 Pavia, Italy; (M.C.C.); (F.M.C.); (S.C.); (M.C.M.)
| | - Elena Cristina Rada
- Department of Theoretical and Applied Sciences, Insubria University of Varese, Via G.B. Vico 46, 21100 Varese, Italy;
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