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Zhao L, Zhao D. Hydrolyzed polyacrylamide biotransformation during the formation of anode biofilm in microbial fuel cell biosystem: Bioelectricity, metabolites and functional microorganisms. BIORESOURCE TECHNOLOGY 2022; 360:127581. [PMID: 35798169 DOI: 10.1016/j.biortech.2022.127581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/26/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
The anode biofilm serves as the core dominating the performance of microbial fuel cell (MFC) biosystem. This research provides new insights into hydrolyzed polyacrylamide (HPAM) biotransformation during the formation of anode biofilm. The current density, coulombic efficiency, voltage, power density, volatile fatty acid (VFA) production and total nitrogen (TN) removal enhanced with the thickening of biofilm (1-6 cm), and the maximums achieved 146 mA·m-2, 47.3%, 8.76 V, 1.28 W·m-2, 184 mg·L-1 and 84.6%, respectively. HPAM concentration descended from 508 mg·L-1 to 83.3 mg·L-1 after 60 days. HPAM was metabolized into VFAs, N2, NO2--N and NO3--N, thereby releasing electrons. Laccase and tyrosine/tryptophan protein induced HPAM metabolism and bioelectricity production. The microbial functions involving HPAM biotransformation and bioelectricity generation were clarified. The alternative resource recovery, techno-economic comparison and development direction of MFC biosystem were discussed to achieve the synchronization of HPAM-containing wastewater treatment and bioelectricity generation based on MFC biosystem.
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Affiliation(s)
- Lanmei Zhao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Dong Zhao
- Sinopec Shengli Petroleum Administration, Dongying 257000, China
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2
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Braun O, Coquery C, Kieffer J, Blondel F, Favero C, Besset C, Mesnager J, Voelker F, Delorme C, Matioszek D. Spotlight on the Life Cycle of Acrylamide-Based Polymers Supporting Reductions in Environmental Footprint: Review and Recent Advances. Molecules 2021; 27:42. [PMID: 35011281 PMCID: PMC8746853 DOI: 10.3390/molecules27010042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 11/18/2022] Open
Abstract
Humankind is facing a climate and energy crisis which demands global and prompt actions to minimize the negative impacts on the environment and on the lives of millions of people. Among all the disciplines which have an important role to play, chemistry has a chance to rethink the way molecules are made and find innovations to decrease the overall anthropic footprint on the environment. In this paper, we will provide a review of the existing knowledge but also recent advances on the manufacturing and end uses of acrylamide-based polymers following the "green chemistry" concept and 100 years after the revolutionary publication of Staudinger on macromolecules. After a review of raw material sourcing options (fossil derivatives vs. biobased), we will discuss the improvements in monomer manufacturing followed by a second part dealing with polymer manufacturing processes and the paths followed to reduce energy consumption and CO2 emissions. In the following section, we will see how the polyacrylamides help reduce the environmental footprint of end users in various fields such as agriculture or wastewater treatment and discuss in more detail the fate of these molecules in the environment by looking at the existing literature, the regulations in place and the procedures used to assess the overall biodegradability. In the last section, we will review macromolecular engineering principles which could help enhance the degradability of said polymers when they reach the end of their life cycle.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Dimitri Matioszek
- SNF SA, ZAC de Milieux, 42160 Andrézieux-Bouthéon, France; (O.B.); (C.C.); (J.K.); (F.B.); (C.F.); (C.B.); (J.M.); (F.V.); (C.D.)
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3
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Peng H, Guo J, Li H, Song Y, Lu C, Han Y, Hou Y. Granulation and response of anaerobic granular sludge to allicin stress while treating allicin-containing wastewater. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.107971] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Liang J, Wang Q, Li J, Guo S, Ke M, Gamal El-Din M, Chen C. Effects of anaerobic granular sludge towards the treatment of flowback water in an up-flow anaerobic sludge blanket bioreactor: Comparison between mesophilic and thermophilic conditions. BIORESOURCE TECHNOLOGY 2021; 326:124784. [PMID: 33548817 DOI: 10.1016/j.biortech.2021.124784] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Cost-effective treatment of flowback water remains a challenge for the sustainability of shale gas development. This study evaluated the efficiency of anaerobic granular sludge (AnGS) technology for flowback water treatment under mesophilic and thermophilic conditions. The granule characteristics and metagenomic characterization were also investigated. Thermophilic AnGS achieved 70.9% of COD removal and 362 NmL/d of methane production, higher than those for mesophilic AnGS (60.0% and 241 NmL/d). Thermophilic AnGS had higher extracellular polymeric substances content but low granular size and settleability. Metagenomic analysis revealed the genes related to hydrolysis acidification and carbohydrate metabolism were upregulated during thermophilic condition. Thermophilic condition most likely improved the hydrolysis of complex organics in the flowback water such as guar gum and hydrolyzed polyacrylamide, and led to higher COD removal and methane production. These results suggest that AnGS technology is a promising alternative for the treatment of flowback water, particularly when operated at thermophilic condition.
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Affiliation(s)
- Jiahao Liang
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Qinghong Wang
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Jin Li
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shaohui Guo
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Ming Ke
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Mohamed Gamal El-Din
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China.
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5
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Zhu M, Li N, Lu Y, Hu Z, Chen S, Zeng RJ. The performance and microbial communities of an anaerobic membrane bioreactor for treating fluctuating 2-chlorophenol wastewater. BIORESOURCE TECHNOLOGY 2020; 317:124001. [PMID: 32805483 DOI: 10.1016/j.biortech.2020.124001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/07/2020] [Accepted: 08/08/2020] [Indexed: 06/11/2023]
Abstract
An anaerobic membrane bioreactor (AnMBR) was used to treat low to high (5-200 mg/L) concentrations of 2-chlorophenol (2-CP) wastewater. The AnMBR achieved high and stable chemical oxygen demand removal and 2-CP removal with an average value of 93.2% and 94.2% under long hydraulic retention times (HRTs, 48-96 h), respectively. 2-CP removal efficiency of 98.6 mg/L/d was achieved with 2-CP concentration of 200 mg/L, which was much higher than that of other anaerobic bioreactors. Furthermore, volatile fatty acids didn't accumulate under high 2-CP loading. Long HRTs significantly reduced the membrane fouling as the fouling rate (0.90 × 109-5.44 × 109 m-1h-1) was low. Spirochaetaceae and Methanosaeta were the dominant microbes responsible for dechlorination, methanogenesis, and shock resistance. All these results demonstrate that this AnMBR operated under long HRTs is good and robust for fluctuating chlorophenols wastewater treatment, which has high potential for treating fluctuating refractory organics wastewater with the low membrane fouling rate.
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Affiliation(s)
- Mingchao Zhu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Na Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yongze Lu
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhaoxia Hu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Shouwen Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Raymond Jianxiong Zeng
- Center of Wastewater Resource Recovery, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
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6
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Biofilm as a live and in-situ formed membrane for solids separation in bioreactors: Biofilm succession governs resistance variation demonstrated during the start-up period. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Wang H, Zhang H, Zhang K, Qian Y, Yuan X, Ji B, Han W. Membrane fouling mitigation in different biofilm membrane bioreactors with pre-anoxic tanks for treating mariculture wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138311. [PMID: 32272414 DOI: 10.1016/j.scitotenv.2020.138311] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/19/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
This study compared the membrane fouling mitigation in two novel types of biofilm membrane bioreactor coupled with a pre-anoxic tank (BF-AO-MBR)-namely a fixed biofilm membrane bioreactor (FB-MBR) with fiber bundle bio-carriers and a moving-bed biofilm membrane bioreactor (MB-MBR) with suspended bio-carriers-relative to an anoxic/oxic MBR (AO-MBR), at salinities ranging from zero to 60 g/L. The results showed that the FB-MBR mitigated membrane fouling to a greater degree than the MB-MBR and AO-MBR. During operation, the FB-MBR exhibited the lowest fouling development, with three membrane filtration cycles, while the AO-MBR and MB-MBR had 22 and nine cycles, respectively. The key fouling factor in all reactors was cake layer resistance (RC), which contributed to 89.61, 62.20, and 83.17% of the total fouling resistance (RT) in AO-MBR, FB-MBR and MB-MBR, respectively. Additionally, in the FB-MBR, the pore blocking resistance (30.07%) was also an important cause of fouling. Fiber bundle bio-carriers and suspended bio-carriers reduced the RT by 37.68% and 21.24% (mainly the RC) compared to that of AO-MBR. Furthermore, FB-MBR and MB-MBR caused a decrease of suspended biomass (80.14 and 15.90%, respectively), and the latter exhibited a higher sludge particle size than AO-MBR, possibly resulting in the cake layer decline. The studied BF-AO-MBRs further alleviated the fouling propensity by reducing the amount of soluble microbial product (SMP) and extracellular polymeric substances (EPS) under all salinity levels, especially the FB-MBR. Among the protein components, the amounts of tryptophan protein-like substance and aromatic protein-like substance were significantly lower in the FB-MBR compared to the AO-MBR and MB-MBR. Additionally, at 60 g/L salinity, the structure of the microbial community in the FB-MBR had a lower abundance of Bacteroidetes and more biomacromolecule degraders, which may have contributed to the moderation of membrane fouling.
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Affiliation(s)
- Hanqing Wang
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Polytechnic Institute, Zhejiang University, Hangzhou 310000, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Huining Zhang
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China.
| | - Kefeng Zhang
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Yongxing Qian
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Xin Yuan
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Bixiao Ji
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Wanling Han
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
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8
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Zhang H, Wang H, Jie M, Zhang K, Qian Y, Ma J. Performance and microbial communities of different biofilm membrane bioreactors with pre-anoxic tanks treating mariculture wastewater. BIORESOURCE TECHNOLOGY 2020; 295:122302. [PMID: 31678888 DOI: 10.1016/j.biortech.2019.122302] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 06/10/2023]
Abstract
The performance of pollutant removals, activated sludge characteristics, and microbial communities of two biofilm membrane bioreactors coupled with pre-anoxic tanks (BF-AO-MBRs) (one using fiber bundle bio-carriers (FB-MBR) and the other using suspended bio-carriers (MB-MBR)) were compared at the salinity between zero and 60 g/L. At all salinities, three bioreactors showed good COD average removal efficiencies (>94.1%), and FB-MBR showed the best TN removal efficiency (90.4% at 30 g/L salinity). Moreover, FB-MBR had the faster process start-up time and better salt shock resistance. At high salinities (30-60 g/L), more extracellular polymeric substances were produced by the BF-AO-MBRs to avoid the penetration of salt and protect the bacterial community. Because of the different attachment patterns of biofilms, the microbial community structure in the FB-MBR exposed to 30 g/L salinity had higher nitrite-oxidizing/ammonia-oxidizing bacteria ratio (6.44) with more abundance of denitrifiers, which contribute to higher TN removal efficiency and lower nitrite accumulation.
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Affiliation(s)
- Huining Zhang
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Hanqing Wang
- Polytechnic Institute, Zhejiang University, Hangzhou 310000, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Mengrui Jie
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Kefeng Zhang
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China.
| | - Yongxing Qian
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
| | - Jianqing Ma
- Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China; Ningbo Key Laboratory of Urban and Rural Water Pollution Control Technology, Ningbo 315100, China
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9
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Zhao L, Cheng Y, Yin Z, Chen D, Bao M, Lu J. Insights into the effect of different levels of crude oil on hydrolyzed polyacrylamide biotransformation in aerobic and anoxic biosystems: Bioresource production, enzymatic activity, and microbial function. BIORESOURCE TECHNOLOGY 2019; 293:122023. [PMID: 31472407 DOI: 10.1016/j.biortech.2019.122023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/12/2019] [Accepted: 08/15/2019] [Indexed: 06/10/2023]
Abstract
The differences of crude oil recovery ratio resulted in different levels of crude oil in actual hydrolyzed polyacrylamide (HPAM)-containing wastewater. The effect of crude oil on HPAM biotransformation was explored from bioresource production, enzymatic activity and microbial function. In aerobic biosystems, the highest polyhydroxyalkanoate (PHA) yield (19.6%-40.2%) and dehydrogenase (DH) activity (4.06-8.32 mg·g-1 VSS) occurred in the 48th hour, and increased with crude oil concentration (0-400 mg·L-1). In anoxic biosystems, the highest PHA yield (24.5%-50.5%) and DH activity (3.24-6.69 mg·g-1 VSS) occurred in the 72nd hour, and increased with crude oil concentration. The higher substrate removal (38.5%-65.7%) occurred in aerobic biosystems, while the higher PHA accumulation occurred in anoxic biosystems. PHA yield, DH activity and HPAM removal were related. Microbial function related to HPAM biodegradation and PHA synthesis was discussed. The main function of Pseudomonas and Bacillus in aerobic biosystems was to degrade HPAM, and in anoxic biosystems was to synthesize PHA.
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Affiliation(s)
- Lanmei Zhao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Yuan Cheng
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Zichao Yin
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Dafan Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
| | - Jinren Lu
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
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Cai Y, Li X, Zaidi AA, Shi Y, Zhang K, Feng R, Lin A, Liu C. Effect of hydraulic retention time on pollutants removal from real ship sewage treatment via a pilot-scale air-lift multilevel circulation membrane bioreactor. CHEMOSPHERE 2019; 236:124338. [PMID: 31319308 DOI: 10.1016/j.chemosphere.2019.07.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/04/2019] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
Developing a real ship sewage treatment system that not only satisfies the requirement of small space onboard but also meets the latest emission standards of International Maritime Organization (IMO) is still a challenging task for ship industry. To overcome these problems, in this study, a novel pilot-scale air-lift multilevel circulation membrane bioreactor (AMCMBR) was used to explore the effect of hydraulic retention time (HRT) on effluent chemical oxygen demand (COD) and total nitrogen (TN) while treating real ship sewage. Results indicated that the satisfactory removal efficiencies of COD and TN was achieved in the former stages (Re(COD) = 91.57% and 87.82%; Re(TN) = 77.17% and 81.19%). When HRT decreased to 4 h, the removal efficiencies of COD and TN was 86.93% and 70.49% respectively, which still met the strict IMO discharge standards. This mainly because the biofilm-assistant membrane filtration lead to the increase of physical removal rate. The high ratio of mixed liquor volatile suspended solids (MLVSS)/mixed liquid suspended solids (MLSS) (i.e. 0.75) indicated a high biomass content in the attached sludge and resulted into perfect pollutants removal effort. The compliance rate of COD and TN was 100% and 89%, respectively, which indicated stable operation of the pilot-scale AMCMBR throughout the whole experiment. Fluorescence in situ Hybridization (FISH) analysis revealed that the abundance of β-Proteobacteria was a key microbial reason for TN removal. In addition, wavelet neural network (WNN) model was proved to be suitable to simulate and predict the COD and TN removal. These conclusions indicated that the pilot-scale AMCMBR technology is an effective way for real ship sewage treatment.
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Affiliation(s)
- Yuhang Cai
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Xin Li
- China Aviation Development Institute, No. 1 Wanlian Road, Shenhe District, Shenyang City, PR China
| | - Asad A Zaidi
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Yue Shi
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China.
| | - Kun Zhang
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China.
| | - Ruizhe Feng
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Aqiang Lin
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Chen Liu
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China
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11
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Zhao L, Han D, Yin Z, Bao M, Lu J. Biohydrogen and polyhydroxyalkanoate production from original hydrolyzed polyacrylamide-containing wastewater. BIORESOURCE TECHNOLOGY 2019; 287:121404. [PMID: 31108414 DOI: 10.1016/j.biortech.2019.121404] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
This work aimed to study biohydrogen (H2) and polyhydroxyalkanoate (PHA) production from original hydrolyzed polyacrylamide (HPAM)-containing wastewater. NH4+-N from HPAM hydrolysis was removed efficiently through short-cut nitrification and anoxic ammonia oxidation (anammox). Carbon/Nitrogen (C/N) ratios of effluent reached 51-97, and TOC decreased only 2%-4%, providing potential for subsequent H2 and PHA production. The maximum yields of H2 (0.833 mL·mg-1substrate) and Volatile Fatty Acid (VFA) (465 mg·L-1) occurred at influent C/N ratio of 51. Substrate removal increased linearly with the activities of dehydrogenase and hydrogenase (R2 ≥ 0.990), and H2 yield rose exponentially with enzyme activities (R2 ≥ 0.989). The maximum PHA yield (54.2% VSS) occurred at the 42nd hour and influent C/N ratio of 97. PHA yield was positively correlated with substrate uptake. The change of H2-producing, PHA-accumulating and HPAM-degradating bacteria indicated that those functional microorganisms had synergistic effects on H2 production and substrate uptake, as well as PHA accumulation and substrate uptake.
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Affiliation(s)
- Lanmei Zhao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Dong Han
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Zichao Yin
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
| | - Jinren Lu
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
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12
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Cai Y, Ben T, Zaidi AA, Shi Y, Zhang K. Nitrogen removal augmentation of ship sewage by an innovative aerobic-anaerobic micro-sludge MBR technology. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.04.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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