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Liu Z, Li G, Zhang F, Wu J. Enhanced biodegradation activity towards poly(ethyl acrylate) and poly(vinyl acetate) by anchor peptide assistant targeting. J Biotechnol 2022; 349:47-52. [DOI: 10.1016/j.jbiotec.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 03/03/2022] [Accepted: 03/10/2022] [Indexed: 11/28/2022]
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Liu H, Wu Y, Li M, Ma H, Li M, Zhu K, Chen G, Wang Z, Wang S. Electrocoagulation pre-treatment to simultaneously remove dissolved and colloidal substances and Ca 2+ in old corrugated container wastewater. CHEMOSPHERE 2021; 268:128851. [PMID: 33168278 DOI: 10.1016/j.chemosphere.2020.128851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/26/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
An effective electrocoagulation pre-treatment (ECP) method was proposed to simultaneously solve the problems of the micro stickies deposition and high Ca2+ content in old corrugated container (OCC) papermaking wastewater during the recycling process. The optimal ECP condition was investigated. The results indicated that the effect of an Al electrode on wastewater treatment was superior to that of a Fe or Mg electrode. The optimal treatment conditions of the current density, electrode distance and reaction time were 115 A m-2, 5 cm and 60 min, respectively. After the ECP, the chemical oxygen demand (COD) and Ca2+ removal rates were 75.33% and 64.53%, respectively, and the turbidity and dissolved and colloidal substance (DCS) content decreased by 97.1% and 43.68%, respectively. The particle size of flocs in the liquid increased from 1.675 μm to 31.97 μm, and the floc content was 0.78 g L-1 after ECP. The anode material and energy consumption were 0.1846 kg m-3 and 4.56 kWh m-3, respectively, and the cost of treatment was estimated to be 1.11 $ m-3. The results demonstrate that ECP can effectively remove the micro stickies, COD, and Ca2+ in the OCC wastewater, which is conducive to reducing the cost of wastewater treatment and conform to the requirements of sustainable development.
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Affiliation(s)
- Hui Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Yueru Wu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Mingfu Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Haitong Ma
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Meiling Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Kaili Zhu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China.
| | - Guoning Chen
- Guangxi Bossco Environment Co., Ltd, Nanning, 530007, PR China.
| | - Zhiwei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering Guangxi, Guangxi University, Nanning, 530004, PR China.
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, PR China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering Guangxi, Guangxi University, Nanning, 530004, PR China.
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He L, Li TF, Chai XS, Tian H, Xiao XM, Barnes DG. Efficient Determination of Specific Surface Area of Shale Samples Using a Tracer-Based Headspace Gas Chromatographic Technique. Anal Chem 2016; 89:974-979. [DOI: 10.1021/acs.analchem.6b04235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Teng-Fei Li
- State
Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
| | | | - Hui Tian
- State
Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
| | - Xian-Ming Xiao
- State
Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
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Chai XS, Zhong JF, Hu HC. A novel headspace gas chromatographic method for in situ monitoring of monomer conversion during polymerization in an emulsion environment. J Chromatogr A 2012; 1238:128-31. [DOI: 10.1016/j.chroma.2012.03.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 03/15/2012] [Accepted: 03/19/2012] [Indexed: 10/28/2022]
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Abstract
The object of this work is to evaluate the optimal process of stickies removal on steam-explosion pulping from recovered paper. OCC (Old Corrugated Container), offset paper and coated art paper are presented for steam-explosion treatment. The parameters tested by single-factor tests are: liquor, explosion pressure, heat preservation time, and the charge of sodium hydrate and sodium silicate. The criterion used to characterize the stickies removal efficiency is the consistence of macrostickies and DCS in pulp after treatment. The compositional analysis are achieved the optimal explosion conditions. The use of steam explosion would be desirable in dealing with recovered paper.
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Miranda R, Balea A, Blanca ESDL, Carrillo I, Blanco A. Identification of Recalcitrant Stickies and Their Sources in Newsprint Production. Ind Eng Chem Res 2008. [DOI: 10.1021/ie701718u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruben Miranda
- Department of Chemical Engineering, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, Holmen Paper Madrid−C/ del Papel, 1 28947 Fuenlabrada, Madrid, Spain, Department of Physical Chemistry I, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, and University School of Technical Industrial Engineering, Polytechnique University of Madrid−Ronda de Valencia, 3 28012 Madrid, Spain
| | - Ana Balea
- Department of Chemical Engineering, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, Holmen Paper Madrid−C/ del Papel, 1 28947 Fuenlabrada, Madrid, Spain, Department of Physical Chemistry I, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, and University School of Technical Industrial Engineering, Polytechnique University of Madrid−Ronda de Valencia, 3 28012 Madrid, Spain
| | - Emilia Sanchez de la Blanca
- Department of Chemical Engineering, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, Holmen Paper Madrid−C/ del Papel, 1 28947 Fuenlabrada, Madrid, Spain, Department of Physical Chemistry I, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, and University School of Technical Industrial Engineering, Polytechnique University of Madrid−Ronda de Valencia, 3 28012 Madrid, Spain
| | - Isabel Carrillo
- Department of Chemical Engineering, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, Holmen Paper Madrid−C/ del Papel, 1 28947 Fuenlabrada, Madrid, Spain, Department of Physical Chemistry I, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, and University School of Technical Industrial Engineering, Polytechnique University of Madrid−Ronda de Valencia, 3 28012 Madrid, Spain
| | - Angeles Blanco
- Department of Chemical Engineering, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, Holmen Paper Madrid−C/ del Papel, 1 28947 Fuenlabrada, Madrid, Spain, Department of Physical Chemistry I, Faculty of Chemistry, Complutense University of Madrid−Avda. Complutense s/n 28040 Madrid, Spain, and University School of Technical Industrial Engineering, Polytechnique University of Madrid−Ronda de Valencia, 3 28012 Madrid, Spain
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