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Chu L, Ding P, Ding M. Pilot-scale microaerobic hydrolysis-acidification and anoxic-oxic processes for the treatment of petrochemical wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:58677-58687. [PMID: 34118001 DOI: 10.1007/s11356-021-14810-9] [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: 01/08/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
Microaerobic hydrolysis and acidification (MHA), as a promising pre-treatment method of industrial wastewater, is drawing increasing attention to enhance the hydrolysis-acidification rate and inhibit the production of toxic gas H2S. In the present work, a pilot-scale MHA reactor coupled with anoxic-oxic (A/O) processes for treating the petrochemical wastewater was established and the mechanism and application of the MHA reaction were explored. The results showed that the ratio of VFA/COD was increased by 43-90% and low effluent S2- concentration (less than 0.2 mg/L) was obtained after MHA treatment with 5.5-13.8 L air m-3 h-1 supply. The MHA sludge exhibited a good settleability, a higher protease activity and plentiful community diversity. In addition to the dominant anaerobic bacteria responsible for hydrolysis and acidification such as Clostridiales uncultured, Anaerovorax, Anaerolineaceae uncultured and Fastidiosipila, the sulfate reducing bacteria involving Desulfobacter, Desulfomicrobium and Desulfobulbus, the sulphur oxidizing bacteria involving Thiobacillus, Arcobacter and Limnobacter, the nitrifies such as Nitrosomonadaceae uncultured and Nitrospira, and denitrifies Thauera were also identified. MHA pre-treatment guaranteed the efficacy and stability of the following A/O treatment. The removal efficiency of COD and ammonium of the MHA-A/O system remained at around 78.3% and 80.8%, respectively, although the organic load fluctuated greatly in the influent.
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Affiliation(s)
- Libing Chu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, People's Republic of China.
| | - Pengyuan Ding
- Petroleum Exploration and Production Research Institute, Sinopec, Beijing, 100083, People's Republic of China
| | - Mingcong Ding
- College of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 102616, People's Republic of China
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Zhou H, Chen C, Zhou S, Bu K, Li P, Lin X, Jiang L, Zhang C. Performance and microbial community analysis of a bio-contact oxidation reactor during the treatment of low-COD and high-salinity oilfield produced water. BIORESOURCE TECHNOLOGY 2021; 335:125267. [PMID: 33992912 DOI: 10.1016/j.biortech.2021.125267] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/03/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
The multistage bio-contact oxidation reactor (BCOR) is a widely used biological strategy to treat wastewater, however, little is known about the performance and microbial community information of BCOR during the treatment of low-COD and high-salinity oilfield produced water. In this study, the performance of a multistage BCOR in treating produced water was investigated. The result suggested the BCOR could efficiently remove COD, BOD5, NH4+-N, and oil pollutants. Besides, high-throughput sequencing analysis revealed that oil content was the main variable in shaping the community structure. The highest total relative abundance of potential pollutants degraders in first BCOR stage suggested significant role of this stage in pollutants removal. In addition, the correlation analysis disclosed the key functional genera during the degradation process, including Rhodobacter, Citreibacter, and Roseovarius. Moreover, network analysis revealed that the microbial taxa within same module had strong ecological linkages and specific functions.
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Affiliation(s)
- Hanghai Zhou
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Chunlei Chen
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Shaoxiong Zhou
- Xinjiang Keli New Technology Development Co., Ltd., Karamay 834000, Xinjiang, China
| | - Kuiyong Bu
- Xinjiang Keli New Technology Development Co., Ltd., Karamay 834000, Xinjiang, China
| | - Pingyuan Li
- Xinjiang Keli New Technology Development Co., Ltd., Karamay 834000, Xinjiang, China
| | - Xiaoyun Lin
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Lijia Jiang
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China
| | - Chunfang Zhang
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan 316021, Zhejiang, China.
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Gao F, Zhou X, Ma Y, Zhang X, Rong X, Xiao X, Wu Z, Wei J. Calcium modified basalt fiber bio-carrier for wastewater treatment: Investigation on bacterial community and nitrogen removal enhancement of bio-nest. BIORESOURCE TECHNOLOGY 2021; 335:125259. [PMID: 33991876 DOI: 10.1016/j.biortech.2021.125259] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/01/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Modified basalt fiber (MBF) is a sustainable material studied as novel wastewater treatment bio-carrier recently. This work studied the effects of calcium modification on the bacterial affinity of modified fiber (Ca-MBF), bacterial community, and nitrogen removal performance. Results showed that Ca-MBF with hydrophilic (62.66°) and positively-charged (7.80 mV) surface accelerated bacterial attachment. Volatile suspended solids on Ca-MBF (5.46 g VSS/g fiber) were increased by 2.61 times after modification, with high bacterial activity when bio-carriers were cultured in activated sludge. Extracellular polymeric substances on Ca-MBF was 4.35 times higher and consisted of more protein. Bio-nests with unique aerobic/anaerobic structure formed on the ultrafine carriers in bioreactor. Ca-MBF bioreactor exhibited total nitrogen removal efficiency above 72.2% and COD removal efficiency above 94.2% with more stable performance than unmodified carrier in long-term treatment using synthetic domestic wastewater.16S rRNA gene sequencing revealed enhanced abundance of nitrifying and denitrifying bacteria in Ca-MBF bio-nest.
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Affiliation(s)
- Fengyi Gao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiangtong Zhou
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute of Environmental Health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yuting Ma
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaoying Zhang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Xinshan Rong
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute of Environmental Health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiang Xiao
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Zhiren Wu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute of Environmental Health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jing Wei
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute of Environmental Health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
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Synthesis and characterization of Graphitic Carbon Nitride/Mesoporous Nano-Silica (g-C3N4/KCC-1) nanocomposite as a novel highly efficient and recyclable photocatalyst for degradation of antibiotic in aqueous solution. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04358-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Nie H, Nie M, Diwu Z, Wang L, Yan H, Lin Y, Zhang B, Wang Y. Biological treatment of high salinity and low pH produced water in oilfield with immobilized cells of P. aeruginosa NY3 in a pilot-scale. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:121232. [PMID: 31563036 DOI: 10.1016/j.jhazmat.2019.121232] [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: 01/06/2019] [Revised: 09/12/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Produced water (PW) in oilfield, as the largest waste streams in the oil and gas production, has posed a huge threat to the ecosystem. In this work, an environmentally friendly and recyclable biofilms have been developed for treating PW. We discovered that the cells of P. aeruginosa NY3 could be easily immobilized on the surface of polyurethane foam (PUF). Removal efficiency of oil and suspended solids (SS) by immobilized P. aeruginosa NY3 was keeping above 80% and 76% both in a laboratory scale and a pilot scale under suitable pH. Low pH and high value of SS had negative effect on the degradation of oil and SS by P. aeruginosa NY3. Recovery test showed that, the activity of biofilms P. aeruginosa NY3 after running in a pilot scale could be recovered in 5 days. Removal ability of oil in the real PW by the recovered biofilms of P. aeruginosa NY3 was even higher than that of the freshly prepared biofilms. These results indicated that, with a simple pH adjustment, immobilized P. aeruginosa NY3 could be recycled for removing oil and SS in the raw PW resulted from oil production.
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Affiliation(s)
- Hongyun Nie
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China; Key Laboratory of Membrane Separation of Shaanxi Province, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China
| | - Maiqian Nie
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China; Key Laboratory of Membrane Separation of Shaanxi Province, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China.
| | - Zhenjun Diwu
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China; Key Laboratory of Membrane Separation of Shaanxi Province, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China.
| | - Lei Wang
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China; Key Laboratory of Membrane Separation of Shaanxi Province, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China
| | - Han Yan
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China
| | - Yingying Lin
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China
| | - Bo Zhang
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China
| | - Yan Wang
- School of Environmental and Munichazipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, Shaanxi Province, People's Republic of China
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Chu L, Chen D, Wang J, Yang Z, Shen Y. Degradation of antibiotics and antibiotic resistance genes in erythromycin fermentation residues using radiation coupled with peroxymonosulfate oxidation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 96:190-197. [PMID: 31376964 DOI: 10.1016/j.wasman.2019.07.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/10/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Ionizing radiation coupled with peroxymonosulfate (PMS) oxidation was developed to degrade antibiotics and antibiotic resistance genes (ARGs) from the erythromycin fermentation (EryF) residual wastes. The experimental results showed that the ERY content and ARGs abundance decreased with increase of the absorbed dose and PMS dosage and gamma irradiation was more effective to abate ARGs from the EryF wastes. The removal efficiency of ERY reached 49-55% and more than 96-99% of ARGs (1.32-2.55 log) was eliminated with the absorbed dose of 25-50 kGy and PMS dosage of 50-100 mM. Illumina pyrosequencing revealed that 3 bacterial phyla, Proteobacteria, Firmicutes and Fusobacteria were highly enriched and the ARGs-linked hosts were affiliated to the genera Aeromonas, Enterobacteriaceae and Enterobacter in the phylum Proteobacteria. The abundance of the ARGs-linked bacteria decreased by gamma/PMS treatment. Ionizing radiation/PMS treatment with the doses of 25 kGy and 50 mM PMS is proposed for potential practical application.
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Affiliation(s)
- Libing Chu
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China
| | - Dan Chen
- School of Water Resources and Environment, China University of Geosciences, Beijing 100083, PR China
| | - Jianlong Wang
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
| | - Zhiling Yang
- School of Water Resources and Environment, China University of Geosciences, Beijing 100083, PR China
| | - Yunpeng Shen
- Yili Chuanning Biotechnology Company, Ltd., Xinjiang 835007, PR China; School of Economics and Management, Center for Innovation Management Research, Xinjiang University, Xinjiang 830047, PR China
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Zhao L, Zhang C, Li H, Bao M, Sun P. Regulation of different electron acceptors on petroleum hydrocarbon biotransformation to final products in activated sludge biosystems. Bioprocess Biosyst Eng 2019; 42:643-655. [DOI: 10.1007/s00449-019-02070-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/03/2019] [Indexed: 10/27/2022]
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Liu C, Zhang R, Yang H, Zhang J, Wang H, Chang L, Zhan Y, Xu Q. Investigating the performance of an anaerobic baffled bioreactor for the biodegradation of alkaline-surfactant-polymer in oilfield water. ENVIRONMENTAL TECHNOLOGY 2018; 39:2669-2678. [PMID: 28818028 DOI: 10.1080/09593330.2017.1364304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The anaerobic baffled reactor (ABR) was used to treat alkaline-surfactant-polymer (ASP) flooding wastewater in the Daqing oilfield. With the ABR, hydraulic retention time (HRT)was reduced from 72 to 24 h, the bioreactor purification capability gradually improved. After the ABR running for 100 days, the removal rate of raw oil, suspended solid and surfactant reached 99.8%, 94.4% and 50%, respectively; alkali, polymer and viscosity were removed at a rate of about 16%, 7% and 20%, respectively. There were 39 kinds of organic materials detected by GCMS in the original water sample, while only 12 kinds of organics were left in the ABR outfall. The above results showed that the anaerobic, facultative anaerobic and aerobic compartment of ABR have strong capability of biodegrading petroleum pollution matter. Pyrosequencing analysis of the 16S rRNA indicated that Acinetobacter, Arcobacter, Pseudomonas and Paracoccus were the dominant bacteria genera present in the ABR reactor, among them Acinetobacter was the dominant species in the bacterial community.
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Affiliation(s)
- Changli Liu
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Rongshu Zhang
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Hongyi Yang
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Jie Zhang
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Hongwei Wang
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Le Chang
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Yuanlong Zhan
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
| | - Qijiang Xu
- a College of Life Sciences , Northeast Forestry University , Harbin , People's Republic of China
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Ma Q, Zhang H, Guo R, Li B, Zhang X, Cheng X, Xie M, Cheng Q. Construction of CuS/TiO2 nano-tube arrays photoelectrode and its enhanced visible light photoelectrocatalytic decomposition and mechanism of penicillin G. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.07.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Chu L, Zhuang S, Wang J. Degradation kinetics and mechanism of penicillin G in aqueous matrices by ionizing radiation. Radiat Phys Chem Oxf Engl 1993 2018. [DOI: 10.1016/j.radphyschem.2017.12.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Wang Z, He X, Li J, Qi J, Zhao C, Yang G. Preparation of magnetic steel-slag particle electrode and its performance in a novel electrochemical reactor for oilfield wastewater advanced treatment. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.09.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Li J, Sun S, Yan P, Fang L, Yu Y, Xiang Y, Wang D, Gong Y, Gong Y, Zhang Z. Microbial communities in the functional areas of a biofilm reactor with anaerobic-aerobic process for oily wastewater treatment. BIORESOURCE TECHNOLOGY 2017; 238:7-15. [PMID: 28432951 DOI: 10.1016/j.biortech.2017.04.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/05/2017] [Accepted: 04/08/2017] [Indexed: 06/07/2023]
Abstract
Microbial communities in the functional areas of biofilm reactors with large height-diameter ratio using the anaerobic-aerobic (A/O) reflux process was investigated to treat heavy oil refinery wastewater without pretreatment. In the process, chemical oxygen demand (COD) and total nitrogen (TN) removal reached 93.2% and 82.8%, and the anaerobic biofilm reactor was responsible for 95% and 99%, respectively. Areas for hydrolysis acidification and acetic acid production, methane production, and COD recovery were obvious in the anaerobic reactor. Among all areas, area for hydrolysis acidification and acetic acid production was the key factor to improve COD removal efficiency. High throughput sequencing of 16S rDNA gene showed that the native community was mainly composed of functional groups for hydrocarbon degradation, syntrophic bacteria union body, methanogenesis, nitrification, denitrification, and sulfate reduction. The deviations between predicted values and actual COD and TN removal were less than 5% in the optimal prediction model.
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Affiliation(s)
- Jianhua Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
| | - Shanshan Sun
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China.
| | - Ping Yan
- Dalian Petrochemical Branch Company, PetroChina, Dalian 116000, China
| | - Li Fang
- China National Petroleum Corporation Liaohe Petrochemical Company, Panjin 124000, China
| | - Yang Yu
- China National Petroleum Corporation Liaohe Petrochemical Company, Panjin 124000, China
| | - Yangdong Xiang
- China National Petroleum Corporation Liaohe Petrochemical Company, Panjin 124000, China
| | - Di Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
| | - Yejing Gong
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
| | - Yanjun Gong
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
| | - Zhongzhi Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China
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Ding P, Chu L, Wang J. Biological treatment of actual petrochemical wastewater using anaerobic/anoxic/oxic process and the microbial diversity analysis. Appl Microbiol Biotechnol 2016; 100:10193-10202. [DOI: 10.1007/s00253-016-7869-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 09/05/2016] [Accepted: 09/16/2016] [Indexed: 11/27/2022]
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Wu C, Zhou Y, Sun Q, Fu L, Xi H, Yu Y, Yu R. Appling hydrolysis acidification-anoxic-oxic process in the treatment of petrochemical wastewater: From bench scale reactor to full scale wastewater treatment plant. JOURNAL OF HAZARDOUS MATERIALS 2016; 309:185-191. [PMID: 26894292 DOI: 10.1016/j.jhazmat.2016.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 11/29/2015] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
A hydrolysis acidification (HA)-anoxic-oxic (A/O) process was adopted to treat a petrochemical wastewater. The operation optimization was carried out firstly by a bench scale experimental reactor. Then a full scale petrochemical wastewater treatment plant (PCWWTP, 6500 m(3) h(-1)) was operated with the same parameters. The results showed that the BOD5/COD of the wastewater increased from 0.30 to 0.43 by HA. The effluent COD was 54.4 mg L(-1) for bench scale reactor and 60.9 mg L(-1) for PCWWTP when the influent COD was about 480 mg L(-1) on optimized conditions. The organics measured by gas chromatography-mass spectrometry (GC-MS) reduced obviously and the total concentration of the 5 organics (1,3-dioxolane, 2-pentanone, ethylbenzene, 2-chloromethyl-1,3-dioxolane and indene) detected in the effluent was only 0.24 mg L(-1). There was no obvious toxicity of the effluent. However, low acute toxicity of the effluent could be detected by the luminescent bacteria assay, indicating the advanced treatment is needed. The clone library profiling analysis showed that the dominant bacteria in the system were Acidobacteria, Proteobacteria and Bacteriodetes. HA-A/O process is suitable for the petrochemical wastewater treatment.
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Affiliation(s)
- Changyong Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China
| | - Yuexi Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China.
| | - Qingliang Sun
- School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liya Fu
- Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China; School of Environment, Tsinghua University, Beijing 100084, China
| | - Hongbo Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China
| | - Yin Yu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China
| | - Ruozhen Yu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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15
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Gong XB. Advanced treatment of textile dyeing wastewater through the combination of moving bed biofilm reactors and ozonation. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1165703] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Zheng T. A compact process for treating oilfield wastewater by combining hydrolysis acidification, moving bed biofilm, ozonation and biologically activated carbon techniques. ENVIRONMENTAL TECHNOLOGY 2015; 37:1171-1178. [PMID: 26507807 DOI: 10.1080/09593330.2015.1105301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A lab-scale hybrid system integrating a hybrid hydrolysis acidification (HA) reactor, a moving bed biofilm reactor (MBBR) and an ozonation-biologically activated carbon (O3-BAC) unit was used in the treatment of heavy oil wastewater with high chemical oxygen demand (COD) and low biodegradability. The effects of hydraulic retention time and ozonation time were investigated. The results show that under the optimal conditions, the effluent concentrations of COD, oil and ammonia were 48, 1.3 and 3.5 mg/L, respectively, corresponding to total removal efficiencies of 95.8%, 98.9% and 94.4%, respectively. The effluent could meet the grade I as required by the national discharge standard of China. The HA process remarkably improved the biodegradability of the wastewater, while the MBBR process played an important role in degrading COD. The ozonation process further enhanced the biodegradability of the MBBR effluent, and finally, deep treatment was completed in the BAC reactor. This work demonstrates that the hybrid HA/MBBR/O3-BAC system has the potential to be used for the treatment of high-strength oilfield wastewater.
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Affiliation(s)
- Tao Zheng
- a College of Technology and Engineering , Yangtze University , Jingzhou , Hubei Province , People's Republic of China
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