Quadratic nonlinear models for optimizing electrostatic separation of crushed waste printed circuit boards using response surface methodology
The electrostatic separation has proved to be an effective and environment-friendly treatment for the recovery of crushed waste printed circuit boards (PCBs). In this paper a more sophisticated response surface methodology was applied to build quadratic models and optimize the three main factors on...
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| Veröffentlicht in: | Journal of hazardous materials 2009-08, Vol.167 (1), p.1038-1043 |
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| creator | Qin, Yufei Wu, Jiang Zhou, Quan Xu, Zhenming |
| description | The electrostatic separation has proved to be an effective and environment-friendly treatment for the recovery of crushed waste printed circuit boards (PCBs). In this paper a more sophisticated response surface methodology was applied to build quadratic models and optimize the three main factors on a roll-type electrostatic separator. The sample of granular mixture got from crushed PCB wastes (size 0.3–0.45
mm, containing 25% metal and 75% nonmetal). According to the analysis of the experiment data, some quadratic effects were found, and two quadratic models for conductor production (
C) and middling production (
M) were established. The results indicated that the high voltage level and roll speed are the most important factors for the process. Because of the existence of the quadratic effect, the highest efficiency can also be achieved at a lower voltage level (27–29
kV) compared with a maximum voltage level. |
| doi_str_mv | 10.1016/j.jhazmat.2009.01.088 |
| format | Article |
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mm, containing 25% metal and 75% nonmetal). According to the analysis of the experiment data, some quadratic effects were found, and two quadratic models for conductor production (
C) and middling production (
M) were established. The results indicated that the high voltage level and roll speed are the most important factors for the process. Because of the existence of the quadratic effect, the highest efficiency can also be achieved at a lower voltage level (27–29
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mm, containing 25% metal and 75% nonmetal). According to the analysis of the experiment data, some quadratic effects were found, and two quadratic models for conductor production (
C) and middling production (
M) were established. The results indicated that the high voltage level and roll speed are the most important factors for the process. Because of the existence of the quadratic effect, the highest efficiency can also be achieved at a lower voltage level (27–29
kV) compared with a maximum voltage level.</description><subject>Applied sciences</subject><subject>Corona electrode separator</subject><subject>Electrochemical Techniques - methods</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Industrial Waste - prevention & control</subject><subject>Methods</subject><subject>Pollution</subject><subject>Refuse Disposal - methods</subject><subject>Response surface methodology</subject><subject>Static Electricity</subject><subject>Waste printed circuit boards</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkl2L1TAQhoMo7vHoT1Byo171mI82aa5EFr9gQQS9Dmky2ZND29QkXdn9D_5nW0_RO_cqDDzvTJhnEHpOyYESKt6cDqejuRtMOTBC1IHQA2nbB2hHW8krzrl4iHaEk7riraov0JOcT4QQKpv6MbqgijVE1s0O_fo6G5dMCRaPcezDCCbhITroM_Yx4TiVMIS7MF5j6MGWFHP5Q2eYzJqLI44e2zTnIzj80-QCeEphLEtlQ7JzKLiLJrmM57y2SZCnOGbAeU7eWMADlGN0sY_Xt0_RI2_6DM-2d4--f3j_7fJTdfXl4-fLd1eVbZgqlbGKtV4QAtIp5tquc9Q4xZUV0nfegBReMU4F9VJ03Pi2MY3qKFNMAtiG79Hrc98pxR8z5KKHkC30vRkhzlkrwgWXjLQL-eq_JK9rLhsp7gUZEUzydgWbM2iXXeYEXi_rGky61ZToVa0-6U2tXtVqQvWidsm92AbM3QDuX2pzuQAvN8Bka3qfzGhD_ssx2gjaLpexR2_P3OIYbgIknW2A0YILaTGsXQz3fOU34BnJTQ</recordid><startdate>20090815</startdate><enddate>20090815</enddate><creator>Qin, Yufei</creator><creator>Wu, Jiang</creator><creator>Zhou, Quan</creator><creator>Xu, Zhenming</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TV</scope><scope>7U7</scope><scope>C1K</scope><scope>SOI</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20090815</creationdate><title>Quadratic nonlinear models for optimizing electrostatic separation of crushed waste printed circuit boards using response surface methodology</title><author>Qin, Yufei ; Wu, Jiang ; Zhou, Quan ; Xu, Zhenming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c529t-ac928f600e7d92d8bbd1ad939c67fbfae76f923161f76b3af85a59b12927eec53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Corona electrode separator</topic><topic>Electrochemical Techniques - methods</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Industrial Waste - prevention & control</topic><topic>Methods</topic><topic>Pollution</topic><topic>Refuse Disposal - methods</topic><topic>Response surface methodology</topic><topic>Static Electricity</topic><topic>Waste printed circuit boards</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qin, Yufei</creatorcontrib><creatorcontrib>Wu, Jiang</creatorcontrib><creatorcontrib>Zhou, Quan</creatorcontrib><creatorcontrib>Xu, Zhenming</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qin, Yufei</au><au>Wu, Jiang</au><au>Zhou, Quan</au><au>Xu, Zhenming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quadratic nonlinear models for optimizing electrostatic separation of crushed waste printed circuit boards using response surface methodology</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2009-08-15</date><risdate>2009</risdate><volume>167</volume><issue>1</issue><spage>1038</spage><epage>1043</epage><pages>1038-1043</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>The electrostatic separation has proved to be an effective and environment-friendly treatment for the recovery of crushed waste printed circuit boards (PCBs). In this paper a more sophisticated response surface methodology was applied to build quadratic models and optimize the three main factors on a roll-type electrostatic separator. The sample of granular mixture got from crushed PCB wastes (size 0.3–0.45
mm, containing 25% metal and 75% nonmetal). According to the analysis of the experiment data, some quadratic effects were found, and two quadratic models for conductor production (
C) and middling production (
M) were established. The results indicated that the high voltage level and roll speed are the most important factors for the process. Because of the existence of the quadratic effect, the highest efficiency can also be achieved at a lower voltage level (27–29
kV) compared with a maximum voltage level.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><pmid>19250745</pmid><doi>10.1016/j.jhazmat.2009.01.088</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of hazardous materials, 2009-08, Vol.167 (1), p.1038-1043 |
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| language | eng |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Corona electrode separator Electrochemical Techniques - methods Electronics Exact sciences and technology Industrial Waste - prevention & control Methods Pollution Refuse Disposal - methods Response surface methodology Static Electricity Waste printed circuit boards |
| title | Quadratic nonlinear models for optimizing electrostatic separation of crushed waste printed circuit boards using response surface methodology |
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