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Zheng X, Lin H, Du D, Li G, Alam O, Cheng Z, Liu X, Jiang S, Li J. Remediation of heavy metals polluted soil environment: A critical review on biological approaches. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 284:116883. [PMID: 39173222 DOI: 10.1016/j.ecoenv.2024.116883] [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: 04/15/2024] [Revised: 08/03/2024] [Accepted: 08/11/2024] [Indexed: 08/24/2024]
Abstract
Heavy metals (HMs) pollution is a globally emerging concern. It is difficult to cost-effectively combat such HMs polluted soil environments. The efficient remediation of HMs polluted soil is crucial to protect human health and ecological security that could be carried out by several methods. Amidst, biological remediation is the most affordable and ecological. This review focused on the principles, mechanisms, performances, and influential factors in bioremediation of HMs polluted soil. In microbial remediation, microbes can alter metallic compounds in soils. They transform these compounds into their metabolism through biosorption and bioprecipitation. The secreted microbial enzymes act as transformers and assist in HMs immobilization. The synergistic microbial effect can further improve HMs removal. In bioleaching, the microbial activity can simultaneously produce H2SO4 or organic acids and leach HMs. The production of acids and the metabolism of bacteria and fungi transform metallic compounds to soluble and extractable form. The key bioleaching mechanisms are acidolysis, complexolysis, redoxolysis and bioaccumulation. In phytoremediation, hyperaccumulator plants and their rhizospheric microbes absorb HMs by roots through absorption, cation exchange, filtration, and chemical changes. Then they exert different detoxification mechanisms. The detoxified HMs are then transferred and accumulated in their harvestable tissues. Plant growth-promoting bacteria can promote phytoremediation efficiency; however, use of chelants have adverse effects. There are some other biological methods for the remediation of HMs polluted soil environment that are not extensively practiced. Finally, the findings of this review will assist the practitioners and researchers to select the appropriate bioremediation approach for a specific soil environment.
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Affiliation(s)
- Xiaojun Zheng
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hongjun Lin
- Jiangsu Xianghe Agricultural Development Co. LTD, Lianyungang, Jiangsu 222048, China
| | - Daolin Du
- Jingjiang College, Institute of Environment and Ecology, School of the Environment and Safety Engineering, School of Emergency Management, Jiangsu University, Zhenjiang 212013, China
| | - Guanlin Li
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ohidul Alam
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Zheng Cheng
- Jiangsu Xianghe Agricultural Development Co. LTD, Lianyungang, Jiangsu 222048, China
| | - Xinlin Liu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shan Jiang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
| | - Jian Li
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China.
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Aljubiri SM, Younes AAO, Alosaimi EH, Abdel Daiem MM, Abdel-Salam ET, El-Shwiniy WH. Recycling of Sewage Sludge: Synthesis and Application of Sludge-Based Activated Carbon in the Efficient Removal of Cadmium (II) and Lead (II) from Wastewater. Int J Mol Sci 2024; 25:9866. [PMID: 39337354 PMCID: PMC11432342 DOI: 10.3390/ijms25189866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/21/2024] [Accepted: 08/24/2024] [Indexed: 09/30/2024] Open
Abstract
The limited supply of drinking water has aroused people's curiosity in recent decades. Adsorption is a popular method for removing hazardous substances from wastewater, especially heavy metals, as it is cheap, highly efficient, and easy to use. In this work, a new sludge-based activated carbon adsorbent (thickened samples SBAC1 and un-thickened samples SBAC2) was developed to remove hazardous metals such as cadmium (Cd+2) and lead (Pb+2) from an aqueous solution. The chemical structure and surface morphology of the produced SBAC1 and SBAC2 were investigated using a range of analytical tools such as CHNS, BET, FT-IR, XRD, XRF, SEM, TEM, N2 adsorption/desorption isothermal, and zeta potential. BET surface areas were examined and SBAC2 was found to have a larger BET surface area (498.386 m2/g) than SBAC1 (336.339 m2/g). While the average pore size was 10-100 nm for SBAC1 and 45-50 nm for SBAC2. SBAC1 and SBAC2 eliminated approximately 99.99% of Cd+2 and Pb+2 out the water under all conditions tested. The results of the adsorption of Cd+2 and Pb+2 were in good agreement with the pseudo-second-order equation (R2 = 1.00). Under the experimental conditions, the Cd+2 and Pb+2 adsorption equilibrium data were effectively linked to the Langmuir and Freundlich equations for SBAC1 and SBAC2, respectively. The regeneration showed a high recyclability for the fabricated SBAC1 and SBAC2 during five consecutive reuse cycles. As a result, the produced SBAC1 and SBAC2 are attractive adsorbents for the elimination of heavy metals from various environmental and industrial wastewater samples.
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Affiliation(s)
- Salha M. Aljubiri
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia; (S.M.A.); (A.A.O.Y.); (E.H.A.); (E.T.A.-S.)
| | - Ayman A. O. Younes
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia; (S.M.A.); (A.A.O.Y.); (E.H.A.); (E.T.A.-S.)
| | - Eid H. Alosaimi
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia; (S.M.A.); (A.A.O.Y.); (E.H.A.); (E.T.A.-S.)
| | - Mahmoud M. Abdel Daiem
- Environmental Engineering Department, Faculty of Engineering, Zagazig University, Zagazig 44519, Egypt;
- Civil Engineering Department, College of Engineering, Shaqra University, Al-Duwadmi 11911, Saudi Arabia
| | - Enas T. Abdel-Salam
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia; (S.M.A.); (A.A.O.Y.); (E.H.A.); (E.T.A.-S.)
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Walaa H. El-Shwiniy
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia; (S.M.A.); (A.A.O.Y.); (E.H.A.); (E.T.A.-S.)
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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Rastegar SO, Samadi A, Ahmadnezhad P, Nazari T. Bioleaching of sewage sludge for copper extraction using Acidithiobacillus thiooxidans: Optimization and ecological risk assessment. CHEMOSPHERE 2024; 353:141466. [PMID: 38364921 DOI: 10.1016/j.chemosphere.2024.141466] [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: 11/30/2023] [Revised: 02/07/2024] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
In this study, Acidithiobacillus thiooxidans was used for the bioleaching of copper (Cu) from sewage sludge. In order to find optimization conditions, three factors including solid-to-liquid ratio (S/L) (0.01-0.2 %(w/v)), initial element sulfur (S0) (1-10 g/L), and initial pH (1-3) have been investigated. Based on response surface methodology (RSM) determined a significant reduced quadratic model with a p-value of 0.0022 (<0.05 significant level). The maximum Cu recovery was 85.3% in the optimum condition of S/L = 0.16% (w/v), S0 = 8.2 g/L, and pH = 1.4. Furthermore, a kinetic study based on a shrinking core model was performed and the result showed that chemical reaction was rate limiting in the extraction. Toxicity Characteristic Leaching Procedure (TCLP) results after bioleaching showed the bioleaching process detoxified sludge and the bioleached sludge residue was well within the regulatory limits for disposal. The germination seed with adding bioleached and unbioleached sludge to the soil was determined. Various parameters such as Germination Index (GI), Tolerance Index (TI), Vigor Index (VI), and stem length showed that the sewage sludge indices significantly increased than the sample soil with unbioleached sludge.
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Affiliation(s)
- S O Rastegar
- Department of Chemical Engineering, Faculty of Engineering, University of Kurdistan, Sanadaj, Iran.
| | - A Samadi
- Department of Chemical Engineering, Faculty of Engineering, University of Kurdistan, Sanadaj, Iran
| | - P Ahmadnezhad
- Department of Chemical Engineering, Faculty of Engineering, University of Kurdistan, Sanadaj, Iran
| | - T Nazari
- Department of Soil Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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Chang Z, Su B, Zhang C, Zhang C, Song X. Effects of complex sulphur substrates on sludge bioleaching to improve heavy metal removal and microbial community diversity. CHEMOSPHERE 2023; 339:139532. [PMID: 37467854 DOI: 10.1016/j.chemosphere.2023.139532] [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: 03/27/2023] [Revised: 07/08/2023] [Accepted: 07/15/2023] [Indexed: 07/21/2023]
Abstract
In this study, H2S was used as a partial replacement nutrient substrate for sludge bioleaching. The effects of different combinations of H2S/sludge load and monomeric sulphur on heavy metal removal and microbial communities were investigated. Changes in pH, oxidation-reduction potential (ORP), SO42- concentration, heavy metal removal, and the content of heavy metal states during bioleaching were investigated, and community diversity analysis was performed. Daily introduction of H2S three times (at an interval of 8 h) at a gas flow rate of 2 ml/min and an H2S/sludge load of 15 ml/L with 5 g/L FeSO4·7H2O and 2 g/L monomeric sulphur as a nutrient substrate significantly accelerated both the bioleaching process and the pH drop in the sludge system, promoted the production of SO42-, and maintained a higher redox potential. The combination of H2S and monomeric sulphur had a significant effect on the leaching of heavy metals. Compared with the experimental group containing only H2S or monomeric sulphur, the removal rates of Zn, Ni, Pb, and Cr increased by 4.63%/13.8%, 8.5%/20.07%, 3.84%/9.5%, and 4.24%/8.02% respectively, while promoting the transformation of various heavy metal states to labile states, improving heavy metal stability, and reducing sludge ecotoxicity. High-throughput sequencing analysis showed that introducing the H2S gaseous matrix accelerated the decreasing trend of species number, bacterial abundance, and community diversity in the sludge system, promoting Proteobacteria as the dominant phylum, Acidithiobacillus, Metallibacterium, and Thiomonas as the dominant genera, and improving the bioleaching treatment effect.
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Affiliation(s)
- Zhankun Chang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China; Shanxi Municipal Engineering Postgraduate Education Innovation Centre, Taiyuan, 030024, Shanxi, China
| | - Bingqin Su
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China; Shanxi Municipal Engineering Postgraduate Education Innovation Centre, Taiyuan, 030024, Shanxi, China.
| | - Chi Zhang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
| | - Congzheng Zhang
- Shanxi Installation Group Co., Ltd, Taiyuan, 030024, Shanxi, China
| | - Xintong Song
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China; Shanxi Municipal Engineering Postgraduate Education Innovation Centre, Taiyuan, 030024, Shanxi, China
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5
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Rodrigues JL, Campêlo JDM, Wisniewski A, Hantao LW, Eberlin MN, Santos JM. Chemical evaluation of pyrolysis oils from domestic and industrial effluent treatment station sludges with perspective to produce value-added products. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 168:202-210. [PMID: 37311387 DOI: 10.1016/j.wasman.2023.06.004] [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: 01/11/2023] [Revised: 05/14/2023] [Accepted: 06/02/2023] [Indexed: 06/15/2023]
Abstract
The use of renewable sources for energy has increased due to the high demand of modern society and the environmental impacts caused by the use of fossil fuels. Environmentally friendly renewable energy production may involve thermal processes, including the application of biomass. We provide a comprehensive chemical characterization of sludges from domestic and industrial effluent treatment stations, as well as the bio-oils produced by fast pyrolysis. A comparative study of the sludges and the corresponding pyrolysis oils was performed, with characterization of the raw materials using thermogravimetric analysis, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, elemental analysis, and inductively coupled plasma optical emission spectrometry. The bio-oils were characterized using comprehensive two-dimensional gas chromatography/mass spectrometry that identified compounds classified according to their chemical class, mainly related to nitrogenous (62.2%) and ester (18.9%) for domestic sludge bio-oil, and nitrogenous (61.0%) and ester (27.6%) for industrial sludge bio-oil. The Fourier transform ion cyclotron resonance mass spectrometry revealed a broad distribution of classes with oxygen and/or sulfur (N2O2S, O2, and S2 classes). Nitrogenous compounds (N, N2, N3, and NxOxclasses) were also found to be abundant in both bio-oils, due to the origins of the sludges (with the presence of proteins), making these bio-oils unsuitable for use as renewable fuels, since NOxgases could be released during combustion processes. The presence of functionalized alkyl chains indicated the potential of the bio-oils as sources of high added-value compounds that could be obtained by recovery processes and used for the manufacture of fertilizers, surfactants, and nitrogen solvents.
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Affiliation(s)
- Jonatas L Rodrigues
- Institute of Chemistry, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Jacqueline de M Campêlo
- Petroleum, Energy and Mass Spectrometry Research Group (PEM), Department of Chemistry, Federal Rural University of Pernambuco - UFRPE, Recife, Pernambuco, Brazil
| | - Alberto Wisniewski
- Petroleum and Energy from Biomass Research Group (PEB), Department of Chemistry, Federal University of Sergipe - UFS, São Cristóvão, Sergipe, Brazil
| | - Leandro W Hantao
- Institute of Chemistry, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Marcos N Eberlin
- Institute of Chemistry, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil; School of Engineering, Mackenzie Presbyterian University. Rua da Consolação, 930. São Paulo - SP. 01302-907, Brazil; MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian Institute. Rua da Consolação, 896. São Paulo - SP. 01302-907. Brazil
| | - Jandyson M Santos
- Petroleum, Energy and Mass Spectrometry Research Group (PEM), Department of Chemistry, Federal Rural University of Pernambuco - UFRPE, Recife, Pernambuco, Brazil.
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Xu X, Zhu R, Zhang Y, Bartelt-Hunt SL, Zou H, Chen C. COVID-19 related antiviral drugs are less adsorbable on sediment under alkaline and high cation conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 883:163736. [PMID: 37120016 PMCID: PMC10140464 DOI: 10.1016/j.scitotenv.2023.163736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/08/2023] [Accepted: 04/21/2023] [Indexed: 05/03/2023]
Abstract
The COVID-19 pandemic resulted in unprecedented usage and elevated environmental concentrations of antiviral drugs. However, very limited studies have reported their sorption characteristics on environmental matrices. This study investigated the sorption of six COVID-19 related antivirals on Taihu Lake sediment with varied aqueous chemistry. Results showed that the sorption isotherms for arbidol (ABD), oseltamivir (OTV), and ritonavir (RTV) were linear, while the Freundlich model was the best-fit for ribavirin (RBV) and the Langmuir model for favipiravir (FPV) and remdesivir (RDV). Their distribution coefficient, Kd, varied between 5.051 L/kg to 248.6 L/kg with the sorption capacities ranked as FPV > RDV > ABD > RTV > OTV > RBV. Alkaline conditions (pH 9) and elevated cation strength (0.05 M to 0.1 M) decreased the sorption capacities of the sediment for these drugs. Thermodynamic analysis revealed that the spontaneous sorption of RDV, ABD, and RTV was between physisorption and chemisorption while FPV, RBV, and OTV were mainly physisorption. Functional groups related to hydrogen bonds, π - π interaction, and surface complexation were implicated in the sorption processes. These findings enhance our understanding about the environmental fate of COVID-19 related antivirals and provide basic data for predicting their distribution and risk in the environment.
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Affiliation(s)
- Xin Xu
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Rong Zhu
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Yun Zhang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Shannon L Bartelt-Hunt
- Department of Civil and Environmental Engineering, University of Nebraska-Lincoln, Peter Kiewit Institute, Omaha, NE 68182-0178, United States
| | - Hua Zou
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Chen Chen
- State Environmental Protection Key Laboratory of Urban Ecological Environment Simulation and Protection, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Guangzhou 510535, China.
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Oh DY, Kim D, Choi H, Park KY. Syngas generation from different types of sewage sludge using microwave-assisted pyrolysis with silicon carbide as the absorbent. Heliyon 2023; 9:e14165. [PMID: 36923894 PMCID: PMC10009543 DOI: 10.1016/j.heliyon.2023.e14165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/05/2023] Open
Abstract
In this study, the pyrolysis of sewage sludge was explored through microwave-assisted pyrolysis. Three kinds of sludge (primary sludge, waste-activated sludge, and digested sludge) from a sewage treatment process were used. All three kinds of sewage sludge had a low microwave absorption capacity; therefore, an absorber was added to enable microwave-assisted pyrolysis. By using silicon carbide as the heating element, it was possible to increase the temperature within a short time by applying microwaves. During the microwave-assisted pyrolysis of sewage sludges, the amount of gas generated and the H2 and CO fraction of the produced gas increased as temperature increased. The pyrolysis of waste-activated sludge produced the greatest quantity of gas. However, the primary sludge produced the highest amount of syngas in terms of H2 and CO, which indicate the high-quality of the syngas.
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Affiliation(s)
- Doo Young Oh
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Daegi Kim
- Department of Environmental Technology Engineering, Daegu University, 201 Daegudae-ro, Jillyang-eup, Gyeongsan-si, Gyeongsangbuk-do 38453, Republic of Korea
| | - Hanna Choi
- Taeyoung E&C, 111 Yeouigongwon-ro, Yeongdeungpo-gu, Seoul 07241, Republic of Korea
| | - Ki Young Park
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
- Corresponding author.
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Wang MH, Chen CW, Chen CF, Wang LC, Liu TK, Dong CD. Occurrence and emission of polycyclic aromatic hydrocarbons from water treatment plant sludge in Taiwan. ENVIRONMENTAL TECHNOLOGY 2023; 44:1190-1200. [PMID: 34694956 DOI: 10.1080/09593330.2021.1998227] [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: 06/23/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
The concentrations level and distribution of 16 US EPA polycyclic aromatic hydrocarbon (PAHs) from the water treatment plant (WTP), sewage treatment plant (STP), and industrial water treatment plant (ITP) sludge in Taiwan were determined and then assessed the sources, and potential toxicity (carcinogenic polycyclic aromatic hydrocarbons [CPAHs] and toxic BaP equivalent [TEQ]). Results indicated that the total concentrations of PAHs ranged between 58 and 16,436 μg/kg dw. Among the 17 samples, the 2-4 ring of total PAHs were the predominant compound in three kinds of treatment plant (> 60%). Especially, ITP1 owns 95.8% of 2-4 ring of total PAHs and ITP3 owns 54% of five- and six-ring of total PAHs. The molecular indices and principal component analysis (PCA) were used to determine the source contributions, with the results showing that the contributions of combustion/grass, coal or wood combustion and combustion/ liquid (oil) fossil fuel combustion. A PAH toxicity indicated by TEQ was 2.5-506 μg TEQ/g dw. Although, the results indicated that these were not recommended for land applications, but analyses are beneficial to develop effective management strategies for controlling PAH discharge in treatment plants and establishing strategies for its reuse in managing pollutants.
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Affiliation(s)
- Ming-Huang Wang
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Lin-Chi Wang
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan, Taiwan
| | - Ta-Kang Liu
- Institute of Ocean Technology and Marine Affairs, National Cheng Kung University, Tainan, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
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Zhen K, Zhu Q, Zhai S, Gao Y, Cao H, Tang X, Wang C, Li J, Tian L, Sun H. PPCPs and heavy metals from hydrothermal sewage sludge-derived biochar: migration in wheat and physiological response. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:83234-83246. [PMID: 35764728 DOI: 10.1007/s11356-022-21432-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Once the sludge was directly used in the farmland, it will have a negative impact on human health through the food chain because sludge contains pollutants. Sewage sludge pyrolysis into biochar is an effective way to realize sludge harmless and resourceful utilization. This research used hydrothermal carbonization method to convert sludge into sludge biochar (SLBC) to reduce the types and contents of pharmaceuticals and personal care products (PPCPs) and available heavy metals. Furthermore, migration of the residual caffeine (Caf), acetaminophen (Ace), and heavy metals (Cr, Pb, Cu, Zn) released from the SLBC in the wheat was assessed. The results showed that the levels of Caf, Ace, Pb, Cu, and Zn accumulated in the shoots were lower than the limit regulated by Drug and Food Additive Use Standard in China (Caf: 150 mg/kg; Ace: 2.5 ~ 5 mg/kg; Pb: 0.3 mg/kg; Cu: 10 mg/kg; Zn: 20 mg/kg). The migration of Cr from roots to shoots was also significantly controlled by SBLC. SBLC delayed the germination time of wheat seeds with increasing in hydrothermal temperature, the germination rate and root length showed a decreasing trend. Evans blue and O2- fluorescence staining of root tips also confirmed this conclusion. When the wheat was exposed to the low temperature and dose of SLBC, the chlorophyll contents and growth of wheat can be significantly increased; the oxidative damage of cell plasma membrane and net photosynthetic rate were reduced. However, 0.8 g/L of SLBC made plants suffer abiotic stress and caused oxidative damage to plants, and decreased membrane system stability. The study provides some parameters for sludge to realize resource utilization in the agricultural system.
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Affiliation(s)
- Kai Zhen
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Qing Zhu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Sheng Zhai
- College of Geography and Environment, Liaocheng University, Liaocheng, 252000, Shandong Province, China
| | - Yue Gao
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Huimin Cao
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Xuejiao Tang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China.
| | - Cuiping Wang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China.
| | - Jiao Li
- Ecology and Environment Monitoring Station in Pingluo County, Shizuishan City, 753400, Ningxia Hui Autonomous Region, China
| | - Lili Tian
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Hongwen Sun
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
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10
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Thermal pretreatment of spent button cell batteries (BCBs) for efficient bioleaching. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1160-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Krasucka P, Rombel A, Yang XJ, Rakowska M, Xing B, Oleszczuk P. Adsorption and desorption of antiviral drugs (ritonavir and lopinavir) on sewage sludges as a potential environmental risk. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127901. [PMID: 34906870 DOI: 10.1016/j.jhazmat.2021.127901] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/25/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
The aim of this work was to evaluate the adsorption capacity and mechanism of two antiviral drugs AVDs (lopinavir (LOP) and ritonavir (RIT)) on three various sewage sludges (SSLs). The results showed that SSLs differed in the structure and chemical composition and LOP and RIT had a high affinity to the studied SSLs (Kd in ranges 2076-3449 L/kg). The adsorption capacities differed between SSLs and ranged 7.55-8.71 mg/g (RIT) and 8.10-8.64 mg/g (LOP). The Freundlich model provided a best fitting of adsorption isotherms of all AVDs-SSLs. The adsorption kinetics were best described by pseudo-second order kinetic model. The adsorption of LOP and RIT on SSLs was exothermic, spontaneous, and thermodynamically feasible. The sorption of LOP and RIT to SSLs was complex due to the diverse chemical composition of SSLs and the differences in the chemical structure of AVDs. Analysis of binary solution of both AVDs showed the competition effect between AVDs and a decrease in adsorption efficiency (3-17%) compared to single solutions. The amount of desorbed AVDs from all SSLs was low (less than 15%). The findings of the present work are significant in the prediction of fate and persistence of AVDs on SSLs in the context of their further transmission and possible environmental contamination.
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Affiliation(s)
- Patrycja Krasucka
- Faculty of Chemistry, Department of Radiochemistry and Environmental Chemistry, Maria Curie-Sklodowska University, 3M. Curie-Sklodowska Sq., 20-031 Lublin, Poland
| | - Aleksandra Rombel
- Faculty of Chemistry, Department of Radiochemistry and Environmental Chemistry, Maria Curie-Sklodowska University, 3M. Curie-Sklodowska Sq., 20-031 Lublin, Poland
| | - Xiao Jin Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Magdalena Rakowska
- Civil, Environmental, and Construction Engineering, Texas Tech University, Lubbock, TX 79409, United States
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
| | - Patryk Oleszczuk
- Faculty of Chemistry, Department of Radiochemistry and Environmental Chemistry, Maria Curie-Sklodowska University, 3M. Curie-Sklodowska Sq., 20-031 Lublin, Poland.
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12
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Zhang X, Li J, Yang W, Chen J, Wang X, Xing D, Dong W, Wang H, Wang J. The combination of aerobic digestion and bioleaching for heavy metal removal from excess sludge. CHEMOSPHERE 2022; 290:133231. [PMID: 34902386 DOI: 10.1016/j.chemosphere.2021.133231] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/06/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
In this study, bioleaching is employed for removing heavy metals from excess sludge generated during municipal wastewater treatment. To avoid organic matter impact on bioleaching, aerobic digestion was performed as pretreatment of the bioleaching or accompanied with the bioleaching. The results showed that the leaching amounts of heavy metals from the process of aerobic digestion accompanied with bioleaching was 2.3 times more than that of the process of aerobic digestion followed by bioleaching. The stable-state proportions of Zn, Cu, Ni and Mn increased by 83%, 94%, 96% and 91%, respectively, in the process of aerobic digestion accompanied with bioleaching, and moreover, the reduction rate of MLSS increased by 22.7%. Although the content of ammonia nitrogen and total phosphorus in sludge decreased after bioleaching treatment, they were still much higher than the soil background value. It indicates that the treated sludge still has agricultural value. High throughput sequencing analysis showed that the relative abundance of acid-producing bacteria (Romboutsia, Clostridium, Tricibacter, and Intestinibacter) significantly increased from 0% to 28.6%, 6.9%, 3.9%, and 2.4%. The enrichment of these acidogenic bacteria was the main reason for the pH decrease, which was conducive to the removal of heavy metals from sludge.
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Affiliation(s)
- Xiaolei Zhang
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Key Laboratory of Water Resource Application and Environmental Pollution Control, Shenzhen, Shenzhen, Shenzhen, 518055, PR China
| | - Ji Li
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Key Laboratory of Water Resource Application and Environmental Pollution Control, Shenzhen, Shenzhen, Shenzhen, 518055, PR China
| | - Wei Yang
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Key Laboratory of Water Resource Application and Environmental Pollution Control, Shenzhen, Shenzhen, Shenzhen, 518055, PR China
| | - Jiaxin Chen
- Department of Civil and Environmental Engineering, Shantou University, Shantou, Guangdong, 515063, PR China
| | - Xiaochun Wang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China; Institute of Environmental Health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China.
| | - Dingyu Xing
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Key Laboratory of Water Resource Application and Environmental Pollution Control, Shenzhen, Shenzhen, Shenzhen, 518055, PR China
| | - Wenyi Dong
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Key Laboratory of Water Resource Application and Environmental Pollution Control, Shenzhen, Shenzhen, Shenzhen, 518055, PR China
| | - Hongjie Wang
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Key Laboratory of Water Resource Application and Environmental Pollution Control, Shenzhen, Shenzhen, Shenzhen, 518055, PR China
| | - Jiawen Wang
- Department of Civil and Environmental Engineering, Shantou University, Shantou, Guangdong, 515063, PR China
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13
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He Q, Huang S, Luo W, Su Y, Xia M, Zhou N, Zhou Z. Study on the difference between in-situ and ex-situ catalytic pyrolysis of oily sludge. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:50500-50509. [PMID: 33961190 DOI: 10.1007/s11356-021-14233-6] [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: 01/25/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
In-situ catalytic pyrolysis has simple process configuration and low cost. Ex-situ catalytic pyrolysis can optimize the pyrolysis capacity and upgrade catalysis, and the catalytic can be reused. But there have been few studies researched on compare in-situ and ex-situ catalytic pyrolysis of the OS performed in similar reactor with two kinds of catalytic. This paper study the pyrolysis of oily sludge (OS) uses CaO and oily pyrolysis char as catalytic at 700 °C. Through analysis the pyrolysis oil (PO), pyrolysis solid (PS) and pyrolysis gas (PG) during pyrolysis procedure to research the difference between in-situ and ex-situ catalytic pyrolysis. The gas chromatography-mass spectrometry (GC-MS) results show that CaO was conducive to the synthesis of aromatics, which content more than aliphatics and heterocyclics in CaO-i (i: in-situ) and CaO-e (e: ex-situ) groups. However, char greatly inhibits the production of aromatic compounds and promotes the production of aliphatic compounds. Gas chromatography (GC) results present that the char and CaO can greatly increase the content of combustible gas and the content reach to 85.85%, the pyrolysis gas (PG) keep at the highest combustion performance in char-CaO-i group. Meanwhile, compared with uncatalyzed groups, the content of CH4 and CO increased about 2.05% and 3.93%, respectively. Fourier transform infrared spectroscopy (FT-IR) show that char and CaO reduce the function groups number of pyrolysis solid (PS), and it shows that the pyrolysis reaction is more complete. This research is expecting to provide theory support for catalytic pyrolysis of OS.
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Affiliation(s)
- Qian He
- School of chemistry and materials science, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China
| | - Shengxiong Huang
- School of chemistry and materials science, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China
| | - Wei Luo
- School of chemistry and materials science, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China
- Powder Metallurgy Research Institute, Central South University, Changsha, 410083, China
| | - Yifeng Su
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China
- College of resources and environment, Hunan Agricultural University, Changsha, 410128, China
| | - Mao Xia
- School of chemistry and materials science, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China
| | - Nan Zhou
- School of chemistry and materials science, Hunan Agricultural University, Changsha, 410128, China
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China
| | - Zhi Zhou
- School of chemistry and materials science, Hunan Agricultural University, Changsha, 410128, China.
- Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, 410128, China.
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14
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Liu Y, Ran C, Siyal AA, Song Y, Jiang Z, Dai J, Chtaeva P, Fu J, Ao W, Deng Z, Zhang T. Comparative study for fluidized bed pyrolysis of textile dyeing sludge and municipal sewage sludge. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122619. [PMID: 32361128 DOI: 10.1016/j.jhazmat.2020.122619] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
A comparative research was performed to evaluate the products yields and chars properties for pyrolysis of textile dyeing sludge (TDS) and municipal sewage sludge (MSS). The high fixed carbon (19.36 wt%) and low volatile (23.66 wt%) contents of TDS resulted in higher char yields and lower condensate yields. TDS char (TC) had a higher sulfur (S) retention efficiency than MSS char (MC) and CaO exhibited a great S retention effect in MC. More alkali and alkaline earth metals (e.g. Na, K, Mg and Ca) in MSS contributed to enhanced catalytic pyrolysis. In comparison to non-catalytic pyrolysis, chars from catalytic pyrolysis had lower iodine number and higher methylene blue (MB) adsorption value. MB adsorption values of MC (212.28-414.20 mg/g) were much higher than those of TC (84.32-156.07 mg/g). In contrast, heavy metals risk degrees of MC (4.20-7.56) were lower than those of TC (7.55-12.87), and heavy metals in TC and MC showed slight risks to environment.
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Affiliation(s)
- Yang Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chunmei Ran
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Asif Ali Siyal
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yongmeng Song
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhihui Jiang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianjun Dai
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Polina Chtaeva
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie Fu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wenya Ao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zeyu Deng
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Tianhao Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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15
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Yang W, Zeng L, Zhang W, Yang Q, Wang T, Xiong H. The influence of different sludge concentrations on its dewaterability during bioleaching. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:2585-2598. [PMID: 32857745 DOI: 10.2166/wst.2020.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Bioleaching, a technologically and economically feasible technology, is considered as the high efficiency method to improve dewaterability in sewage sludge. The objective of this study was to investigate the effect of different sludge concentrations on bioleaching dewaterability and understand the mechanism of the effect of bioleaching on sludge dewaterability. Variation in pH, oxidation-reduction potential (ORP), capillary suction time (CST), specific resistance to filtration (SRF) and different fractions of extracellular polymeric substances (EPS) including slime EPS (S-EPS), loosely bound EPS (LB-EPS), and tightly bound EPS (TB-EPS) were determined. Different sludge concentrations (5, 10, 15, 20 and 30 g·L-1) were selected to investigate during bioleaching. Results indicated that sludge buffering capacity significantly inhibited bioleaching efficiency as sludge concentrations increased. Optimum enhancements in sludge dewaterability were observed during the 10 g·L-1 sludge concentration treatment, and reached a maximum when the pH was 2.11. The variation of different fractions of EPS revealed that the ratio of S-EPS/TB-EPS significantly affected sludge dewaterability. Principal component analysis and Pearson's correlation analysis both provided evidence that the higher TB-EPS followed by a very large reduction was positively correlated with sludge dewaterability. However, the increase of protein and DNA in S-EPS content was negatively correlated with sludge dewaterability.
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Affiliation(s)
- Wenfeng Yang
- College of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang 332005, China and Jiujiang Key Laboratory of basin management and ecological protection, Jiujiang University, Jiujiang Jiangxi, 332005, China E-mail: ; School of Resource and Environmental Sciences, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan Hubei, 430079, China
| | - Liyuan Zeng
- College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou Gansu, 730050, China
| | - Weihao Zhang
- School of Resource and Environmental Sciences, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan Hubei, 430079, China
| | - Qiyong Yang
- College of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang 332005, China and Jiujiang Key Laboratory of basin management and ecological protection, Jiujiang University, Jiujiang Jiangxi, 332005, China E-mail:
| | - Tianfeng Wang
- College of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang 332005, China and Jiujiang Key Laboratory of basin management and ecological protection, Jiujiang University, Jiujiang Jiangxi, 332005, China E-mail:
| | - Houfeng Xiong
- College of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang 332005, China and Jiujiang Key Laboratory of basin management and ecological protection, Jiujiang University, Jiujiang Jiangxi, 332005, China E-mail:
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16
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Cao Q, Huang Z, Liu S, Wu Y. Potential of Punica granatum biochar to adsorb Cu(II) in soil. Sci Rep 2019; 9:11116. [PMID: 31366925 PMCID: PMC6668578 DOI: 10.1038/s41598-019-46983-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 07/04/2019] [Indexed: 11/09/2022] Open
Abstract
Biochar as a promising adsorbent to remove heavy metals has attracted much attention globally. One of the potential adsorbents is biochar derived from punica granatum peels, a growing but often wasted resource in tropical countries. However, the immobilization capacity of punica granatum peel biochar is not known. This study investigated the physicochemical properties of punica granatum peel boichars pyrolyzed at 300 °C and 600 °C (referred as BC300 and BC600), and the efficiency and mechanisms of Cu(II) adsorption of five types of material treatments: BC300, BC600, soil only, and soils with biochar amendment BC300 and BC600, respectively, at the rate of 1% of the soil by weight. The results show that BC300 had higher yield, volatile matter content and organic carbon content, and larger pore diameter, but less ash content, surface area, pH, and cation exchange capacity than BC600. The Cu(II) adsorption capacity onto biochars and soils with biochar were greatly influenced by initial ion concentration and contact time. The Cu(II) adsorption capacity of biochar, independent of pyrolysis temperature, was around 52 mg g−1. The adsorption capacity of the soil amended with biochar nearly doubled (29.85 mg g−1) compared to that of the original soil (14.99 mg g−1), indicating superb synergetic adsorption capacity of the biochar-amended soils. The adsorption isotherms showed monolayer adsorption of Cu(II) on biochar, and co-existence of monolayer and multilayer adsorption in soils with or without biochar amendment. Results also suggest that the adsorption process is spontaneous and endothermic, and the rate-limiting phase of the sorption process is primarily chemical. This study demonstrates punica granatum peel biochar has a great potential as an adsorbent for Cu(II) removal in soil.
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Affiliation(s)
- Qinying Cao
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Zhihong Huang
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China. .,National Engineering Laboratory for Applied Technology of Forestry and Ecology in South China, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China.
| | - Shuguang Liu
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China.,National Engineering Laboratory for Applied Technology of Forestry and Ecology in South China, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Yiping Wu
- Department of Earth and Environmental Science, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China
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17
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Badeenezhad A, Azhdarpoor A, Bahrami S, Yousefinejad S. Removal of methylene blue dye from aqueous solutions by natural clinoptilolite and clinoptilolite modified by iron oxide nanoparticles. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2018.1564077] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Ahmad Badeenezhad
- School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Shima Bahrami
- School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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18
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Chanaka Udayanga WD, Veksha A, Giannis A, Lim TT. Pyrolysis derived char from municipal and industrial sludge: Impact of organic decomposition and inorganic accumulation on the fuel characteristics of char. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 83:131-141. [PMID: 30514459 DOI: 10.1016/j.wasman.2018.11.008] [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: 04/12/2018] [Revised: 10/15/2018] [Accepted: 11/04/2018] [Indexed: 06/09/2023]
Abstract
A comprehensive study was conducted to evaluate the fuel properties of the char produced from pyrolysis of municipal sludge (MS) and industrial sludge (IS) at different pyrolysis temperatures (500-700 °C). A detailed characterisation of the char was performed to investigate the impact of the decomposition and the accumulation of organic and inorganic compounds during pyrolysis on the fuel properties of the derived char. Increase in pyrolysis temperature increased the fuel ratios especially in the MS-derived char. On the other hand, ash accumulation resulted in decreased higher heating values (HHVs). Dehydration and decarboxylation were the main reactions, which caused the decomposition of the organic compounds in raw sludge during pyrolysis. Thermogravimetric analysis results showed that high temperature pyrolysis could improve the thermal stability of the derived char. The accumulation of catalytic inorganic compounds improved the combustion reactivity of both the IS and MS-derived char. The MS-derived char showed higher slagging and ash fouling indices compared to the IS-derived char despite the lower ash content. However, slagging and ash fouling indices of the char were comparable to that of raw sludge samples. The results indicate that the accumulation and physicochemical transformations of heavy metals during pyrolysis process would not be significantly affected during combustion of the char. For practical application in combustion, the MS-derived char has a greater potential due to considerable HHVs, improved thermal stability, efficient combustion characteristics, lower heavy metals leaching and comparable ash related issues.
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Affiliation(s)
- W D Chanaka Udayanga
- Interdisciplinary Graduate School, Nanyang Technological University, Singapore 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Andrei Veksha
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore
| | - Apostolos Giannis
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore; School of Environmental Engineering, Technical University of Crete, University Campus, 73100 Chania, Greece
| | - Teik-Thye Lim
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore.
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19
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Wei X, Liu D, Liao L, Wang Z, Li W, Huang W. Bioleaching of heavy metals from pig manure with indigenous sulfur-oxidizing bacteria: effects of sulfur concentration. Heliyon 2018; 4:e00778. [PMID: 30211335 PMCID: PMC6129760 DOI: 10.1016/j.heliyon.2018.e00778] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 04/25/2018] [Accepted: 09/05/2018] [Indexed: 11/26/2022] Open
Abstract
The purpose of this work was to study the sulfur concentration on bioleaching of heavy metals from pig manure employing indigenous sulfur-oxidizing bacteria. Also, the variations in physicochemical properties of pig manure before and after bioleaching were investigated. The results showed that sulfur concentration significantly affected the rate of acidification, sulfate production and metal solubilization during pig manure bioleaching process. A Michaelis–Menten type equation was utilized to interpret the relationships between sulfur concentration, sulfate production and metal solubilization in the bioleaching process. The rates of metal solubilization during pig manure bioleaching were well described by a first order kinetic equation related to time. After 12 days of bioleaching, 93%–97% of Zn, 96%–98% of Mn and 48%–94% of Cu were leached out from pig manure, respectively. The metals remaining in the pig manure residual were mainly existed in stable forms. In addition, elemental analysis showed that bioleaching process could significantly modify the dewaterbility and organic composition of pig manure. However, fertility analysis found that 9.0%–19.1% of nitrogen, 68.5%–71.0% of phosphorus, 76.5%–78.8% of potassium and 47.5%–49.4% of the total organic carbon (TOC) were lost from pig manure in the bioleaching process. Therefore, bioleaching process used in this study could be applied to remove heavy metals effectively from the pig manure, but more detailed studies need to be done to decrease the nutrients loss from pig manure.
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Affiliation(s)
- Xiaocheng Wei
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Dongfang Liu
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lirui Liao
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Zhendong Wang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Wenjiao Li
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Wenli Huang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
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20
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Gu T, Rastegar SO, Mousavi SM, Li M, Zhou M. Advances in bioleaching for recovery of metals and bioremediation of fuel ash and sewage sludge. BIORESOURCE TECHNOLOGY 2018; 261:428-440. [PMID: 29703427 DOI: 10.1016/j.biortech.2018.04.033] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/01/2018] [Accepted: 04/07/2018] [Indexed: 06/08/2023]
Abstract
Bioleaching has been successfully used in commercial metal mining for decades. It uses microbes to biosolubilize metal-containing inorganic compounds such as metal oxides and sulfides. There is a growing interest in using bioleaching for bioremediation of solid wastes by removing heavy metals from ash and sewage sludge. This review presents the state of the art in bioleaching research for recovery of metals and bioremediation of solid wastes. Various process parameters such as reaction time, pH, temperature, mass transfer rate, nutrient requirement, pulp density and particle size are discussed. Selections of more effective microbes are assessed. Pretreatment methods that enhance bioleaching are also discussed. Critical issues in bioreactor scale-up are analyzed. The potential impact of advances in biofilm and microbiome is explained.
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Affiliation(s)
- Tingyue Gu
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China.
| | - Seyed Omid Rastegar
- Department of Chemical Engineering, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran
| | - Seyyed Mohammad Mousavi
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran
| | - Ming Li
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China
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Sun S, Fan S, Shen K, Lin S, Nie X, Liu M, Dong F, Li J. Laboratory assessment of bioleaching of shallow eutrophic sediment by immobilized photosynthetic bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:22143-22151. [PMID: 27928751 DOI: 10.1007/s11356-016-8077-z] [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] [Received: 09/02/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Eutrophic sediment is a serious problem in ecosystem restoration, especially in shallow lake ecosystems. We present a novel bioleaching approach to treat shallow eutrophic sediment with the objective of preventing the release of nitrate, phosphate, and organic compounds from the sediment to the water column, using porous mineral-immobilized photosynthetic bacteria (PSB). Bioactivity of bacteria was maintained during the immobilization process. Immobilized PSB beads were directly deposited on the sediment surface. The deposited PSB utilized pollutants diffused from the sediment as a nutritive matrix for growth. We evaluated the effects of light condition, temperature, initial pH, amount of PSB beads, and frequency of addition of PSB beads for contaminant removal efficiency during bioleaching operations. The presented study indicated that immobilized PSB beads using porous minerals as substrates have considerable application potential in bioremediation of shallow eutrophic lakes.
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Affiliation(s)
- Shiyong Sun
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Shenglan Fan
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Kexuan Shen
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Shen Lin
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Xiaoqin Nie
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Mingxue Liu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, School of Environment and Resources, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
| | - Jian Li
- Qinghe Technology Co., LTD Sichuan, Tianfu Road 1700, Chengdu, Sichuan, 610041, China
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Xu X, Zhao B, Sun M, Chen X, Zhang M, Li H, Xu S. Co-pyrolysis characteristics of municipal sewage sludge and hazelnut shell by TG-DTG-MS and residue analysis. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 62:91-100. [PMID: 28236506 DOI: 10.1016/j.wasman.2017.02.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/18/2017] [Accepted: 02/07/2017] [Indexed: 06/06/2023]
Abstract
Co-pyrolysis characteristics of municipal sewage sludge and hazelnut shell blend have been studied in this work. The behavior of co-pyrolysis was researched by a method of multi-heating rates and different blend ratios to analyze thermal decomposition stages. The experimental data of the blended samples in TG-DTG plots were compared with calculated data to investigate the interactions during co-pyrolysis. The bio-chars investigated by SEM and FTIR spectra were used to examine the physical and chemical changes. The results showed there are four thermal decomposition stages during co-pyrolysis, with hydrocarbon transforming to gas evolution in the second and the third stages. The inhibitive interaction occurred between 260 and 400°C and the accelerative interaction occurred between 450 and 900°C during co-pyrolysis. The activation energy of the blended sample was 51.97-178.84kJ/mol in the second stage and 207.04-630.73kJ/mol in the third stage calculated by DAEM.
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Affiliation(s)
- Xinyang Xu
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Bing Zhao
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China.
| | - Manli Sun
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Xi Chen
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Mingchuan Zhang
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Haibo Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Shucong Xu
- School of Material Science & Engineering, Shandong University, Jinan 250061, China
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