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Cheng H, Shi W, Liu S, Wang Y, Song J, Long Y, Xiang Y, Xue Y. Adsorption of Phosphate by Two-Step Synthesis of Ceramsite from Electrolytic Manganese Residue/Dredged Sludge. MATERIALS (BASEL, SWITZERLAND) 2024; 17:939. [PMID: 38399190 PMCID: PMC10890683 DOI: 10.3390/ma17040939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/21/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024]
Abstract
Carrying out research on the management of electrolytic manganese residue (EMR) is necessary to maintain the environment and human health. The dredged sludge (DS) and water hyacinth (WH) generated from dredging projects are potential environmental threats, and therefore suitable methods need to be found for their treatment. In this study, ceramsite was prepared by a two-step low-temperature firing method using DS and EMR as raw materials, WH as a pore-forming additive, and aluminate cement as a binder for the adsorption of phosphorus from wastewater. The optimal ratio and process parameters of the ceramsite were determined by mechanical and adsorption properties. The static adsorption experiments were conducted to study the effect of ceramsite dosage and solution pH on the removal of phosphorus. At the same time, dynamic adsorption experiments were designed to consider the influence of flow rate on its actual absorption effect, to explore the actual effect of ceramsite in wastewater treatment, and to derive a dynamic adsorption model that can provide technical support and theoretical guidance for environmental management.
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Affiliation(s)
- Hao Cheng
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Wei Shi
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Song Liu
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Yong Wang
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Jia Song
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Yu Long
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Yuan Xiang
- College of Material and Chemical Engineering, Tongren University, Tongren 554300, China; (H.C.)
| | - Yongjie Xue
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
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Chu S, Qu Q, Pan K, Xu Y, Xiao J. A new Fe-C porous filter material from dredged sediment: preparation, characterization, and its application. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:66303-66312. [PMID: 34331648 DOI: 10.1007/s11356-021-15642-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
A new Fe-C porous filter material was prepared with dredged sediment of river as raw material. The orthogonal test L9(34) and component ratio experiment of raw material were conducted to investigate the optimum technological condition. Further, the filter obtained was characterized by Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), energy dispersive X-ray spectroscope (EDS), and X-ray diffraction (XRD). Results showed that the optimal technological condition was sludge: straw: starch: iron powder: foam: iron powder 74.5: 10: 7.5: 3: 5, preheating temperature 280 °C, preheating 15 min, sintering temperature 1080 °C, and sintering 11 min. The BET surface area of the filter was 3.32 m2 g-1, and average pore size was 10.05 nm. Phase composition mainly included SiO2, Fe3O4, Fe2O3, and muscovite (KAl2(Si3Al)O10(OH)2). Average effluent concentrations of total phosphorus (TP), total organic carbon (TOC), and total nitrogen (TN) of the biofilter system filled with the filter obtained were decreased to 0.08, 3.43, and 3.76 mg L-1, separately, at hydraulic retention time 4 h. Thus, the filter prepared with dredged sediment of rive as raw material is an alternative material for polluted river water purification.
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Affiliation(s)
- Shuyi Chu
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, 325035, China
- Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Vocational College of Science and Technology (Wenzhou Academy of Agricultural Science), Wenzhou, 325006, China
| | - Qian Qu
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Keke Pan
- Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Vocational College of Science and Technology (Wenzhou Academy of Agricultural Science), Wenzhou, 325006, China
| | - Yunjie Xu
- Agricultural and Rural Bureau of Wencheng County, Wenzhou, 325300, China
| | - Jibo Xiao
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, 325035, China.
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
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Qi Y, Guo C, Xu X, Gao B, Yue Q, Jiang B, Qian Z, Wang C, Zhang Y. Co/Fe and Co/Al layered double oxides ozone catalyst for the deep degradation of aniline: Preparation, characterization and kinetic model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 715:136982. [PMID: 32014786 DOI: 10.1016/j.scitotenv.2020.136982] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/26/2020] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
In this work, Co/Fe and Co/Al layered double oxides (Co/Fe-LDO and Co/Al- LDO)ozone catalysts were obtained from Co/Fe and Co/Al layered double hydroxides intermediates (Co/Fe-LDH and Co/Al-LDH). Firstly, the optimal preparation parameters of the two intermediates were determined, then the morphology and mineralogy microstructure of the derived Co/Fe-LDO and Co/Al- LDO ozone catalysts were systematically studied. Finally, the reaction kinetics of the two ozone catalysts for the deep degradation of aniline wastewater in catalysts/ozone systems were established. The results showed that the optimal preparation conditions were set as pH 12, temperature 60 °C, cobalt‑iron ratio 3:1 for Co/Fe-LDH intermediate, and pH 12, temperature 70 °C, cobalt‑aluminum ratio 3:1 for Co/Al-LDH intermediate. During calcination treatment, the dehydration and recrystallization effect impelled LDH intermediate to form LDO catalyst. The derived ozone catalysts Co/Fe-LDO and Co/Al-LDO possess layered structure, and Co species was mainly based on Co3O4 as the main mineral phase of the two ozone catalysts. The addition of catalyst can realize the deep ozonation catalysis of aniline wastewater. The kinetic models established on the aniline oxidized by ozone or catalyst/ozone systems were both fitted the first-order reactions, and the reaction activation energy for CODCr and TOC degradation were significantly reduced in catalyst/ozone system.
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Affiliation(s)
- Yuanfeng Qi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China; School of Environmental Science and Technology, Shandong University, Qingdao, 266237, PR China; Zhejiang Heze Envrionmental Tech Shares Co.,LTD, Huzhou, 313100, PR China.
| | - Ce Guo
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Xing Xu
- School of Environmental Science and Technology, Shandong University, Qingdao, 266237, PR China; Zhejiang Heze Envrionmental Tech Shares Co.,LTD, Huzhou, 313100, PR China
| | - Baoyu Gao
- School of Environmental Science and Technology, Shandong University, Qingdao, 266237, PR China
| | - Qinyan Yue
- School of Environmental Science and Technology, Shandong University, Qingdao, 266237, PR China
| | - Bo Jiang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Zhou Qian
- Zhejiang Heze Envrionmental Tech Shares Co.,LTD, Huzhou, 313100, PR China; Environmental Science Research and Design Institute of Zhejiang Province, Hangzhou 310007, PR China
| | - Changzhi Wang
- Zhejiang Heze Envrionmental Tech Shares Co.,LTD, Huzhou, 313100, PR China; Environmental Science Research and Design Institute of Zhejiang Province, Hangzhou 310007, PR China
| | - Yanqing Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, PR China
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Zhang Y, Wang X, Qi Y, Xi F. Incineration Kinetic Analysis of Upstream Oily Sludge and Sectionalized Modeling in Differential/Integral Method. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16030384. [PMID: 30700030 PMCID: PMC6388273 DOI: 10.3390/ijerph16030384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/22/2019] [Accepted: 01/25/2019] [Indexed: 11/16/2022]
Abstract
As the most significant solid residue generated in the oil production industry, upstream oily sludge was regarded as hazardous waste in China due to its toxicity and ignitability, and to date, the incineration process has been considered the most efficient method in practice. Due to the complicated components of oily sludge, a kinetic model of the incineration process was difficult to build, and is still absent in engineering use. In this study, multiple non-isothermal thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analysis were applied for the kinetic analysis of upstream oily sludge in air conditions. A viewpoint regarding the rules to sectionalize the reaction stages was raised, and a differential integral method to obtain the incineration kinetic model was provided. The results showed that four stages that were divided based on the weight-loss regions in the TGA curves and the endothermic/exothermic sections in the DSC curves were suitable to obtain an incineration kinetic model of oily sludge. The integral method was beneficial for obtaining the average activation energy of each stage, and the differential method was suitable for gaining the nth-order reaction rate equation and the pre-exponential factor before the operating temperature became lower than 635.968 °C. The average activation energies of stages one, two, three, and four were 60.87 KJ/mol, 78.11 KJ/mol, 98.82 KJ/mol, and 15.96 KJ/mol, respectively. The nth-order reaction rate equations and pre-exponential factors of stages one, two, and three were 0.82, 3.50, and 2.50, and e 13.32 min - 1 , e 19.69 min - 1 , and e 21.00 min - 1 , respectively.
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Affiliation(s)
- Yanqing Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
| | - Xiaohui Wang
- Technical Test Center of Shengli Oil Field, Dongying 257001, China.
| | - Yuanfeng Qi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
| | - Fei Xi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China.
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Pilot-Scale Production, Properties and Application of Fe/Cu Catalytic-Ceramic-Filler for Nitrobenzene Compounds Wastewater Treatment. Catalysts 2018. [DOI: 10.3390/catal9010011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Iron powder, Kaolin powder and CuSO4∙5H2O were employed as the main materials for the pilot-scale production of Fe/Cu catalytic- ceramic-filler (CCF) by way of wet type replacement-thermo-solidification. The physical properties, half-life, microstructure, removal rate of nitrobenzene compounds and the biodegradability-improvement of military chemical factory comprehensive wastewater were tested in comparison with commercial Fe/C ceramic-filler (CF). Catalytic micro-electrolysis bed reactors (CBRs) designed as pretreatment process and BAFs (Biological Aerated Filters) were utilized in a 90 days field pilot-scale test at last. The results showed the characteristics of optimum CCF were: 1150 kg/m3 of bulk density, 1700 kg/m3 of grain density, lower than 3.5% of shrinking ratio, 3.5% of 24 h water absorption, 6.0 Mpa of numerical tube pressure, 0.99 acid-resistance softening co-efficiency and 893.55 days of half-life. 25% addition of Fe with 1% of copper plating rate was efficient for the removal of nitrobenzene compounds and significant in promoting the biodegradability of military chemical factory comprehensive wastewater. The two-stage design of CBRs and BAFs showed high dependability and stability for the practical engineering application.
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Guo Y, Wang R, Wang P, Rao L, Wang C. Dredged-Sediment-Promoted Synthesis of Boron-Nitride-Based Floating Photocatalyst with Photodegradation of Neutral Red under Ultraviolet-Light Irradiation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4640-4651. [PMID: 29304278 DOI: 10.1021/acsami.7b15638] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel floating photocatalyst (BN-DS-7) has been successfully synthesized by calcining the mixture of boron nitride (BN) and dredged sediment (DS) with a specific mass ratio (3:7) at 1100 °C for a half hour. BN is synthesized for the first time using an oxygen-limited method, which consists of a nanoplate ∼30 nm in size and has a bandgap at 3.94 eV. The as-synthesized BN can degrade NR under ultraviolet (UV) light irradiation. For BN-DS-7, X-ray photoelectron spectroscopy analysis suggests that BN mainly interacts with DS through the strong coordination between these N atoms in BN and these Si and Al atoms in DS. This leads to BN-DS-7 having good compression strength (∼9 MPa). Thermogravimetric analysis for BN shows that a few BN (∼13%) synthesized via an oxygen-limited method will pyrolyze at 1100 °C and the released gas can be sealed in the inside of DS at 1100 °C, resulting in that BN-DS-7 can float on the water surface. Photodegradation results show that BN-DS-7 can degrade 84% of NR (20 mg/L) under UV-light irradiation for 5 h, and the active species are •OH and photoinduced hole. Total organic carbon analysis for NR solution before and after photodegradation show that ∼70% of NR has been mineralized into inorganic carbons. This work is helpful to develop a new type of BN-based floating material and enlarge the application field of DS.
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Affiliation(s)
- Yong Guo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, 210093, People's Republic of China
| | - Ruxia Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, 210093, People's Republic of China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, 210093, People's Republic of China
| | - Lei Rao
- College of Mechanics and Materials, Hohai University , Nanjing, 210093, People's Republic of China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University , Nanjing, 210093, People's Republic of China
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