| Main Title |
Waste minimization assessment for a manufacturer of printed circuit boards / |
| Author |
Kirsch, F. William. ;
Looby., G. P.
|
| Other Authors |
|
| CORP Author |
University City Science Center, Philadelphia, PA.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
| Publisher |
U.S. Environmental Protection Agency, Risk Reduction Engineering Laboratory, |
| Year Published |
1991 |
| Report Number |
EPA/600-M-91-022; EPA-R-814903 |
| Stock Number |
PB91-234542 |
| OCLC Number |
24997380 |
| Subjects |
Waste minimization--Research--Colorado ;
Printed circuits--Research--Colorado ;
Printed circuits industry--Environmental aspects--Colorado
|
| Additional Subjects |
Hazardous materials ;
Waste management ;
Pollution abatement ;
Circuit boards ;
Assessments ;
Industrial wastes ;
Electroplating ;
Sulfuric acid ;
Liquid wastes ;
Metals ;
Cleaning ;
Soldering alloys ;
Waste minimization ;
Electroless plating ;
Source reduction ;
SIC 20-39
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
TD793.9.K573 1991 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD |
EPA 600-M-91-022 |
c.1-2 |
Headquarters Library/Washington,DC |
08/02/2013 |
| EJED |
EPA 600/M-91-022 |
|
OCSPP Chemical Library/Washington,DC |
05/07/1999 |
| ELBD ARCHIVE |
EPA 600-M-91-022 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 600-M-91-022 |
repository copy |
AWBERC Library/Cincinnati,OH |
10/17/2014 |
| NTIS |
PB91-234542 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6 pages : illustrations ; 28 cm. |
| Abstract |
The U.S. Environmental Protection Agency (EPA) has funded a pilot project to assist small- and medium-size manufacturers who want to minimize their generation of hazardous waste but who lack the expertise to do so. Waste Minimization Assessment Centers (WMACs) were established at selected universities and procedures were adapted from the EPA Waste Minimization Opportunity Assessment Manual (EPA/625/7-88/003, July 1988). The WMAC team at Colorado State University inspected a plant producing printed circuit boards -- a plant that already had taken steps to control its hazardous wastes. Producing a circuit board involves many major processes and subprocesses: preparing the board; depositing copper on the board by electroless plating; applying dry film; electrolytically plating copper; electrolytically plating tin; etching and stripping; applying solder; and, perhaps, plating gold on connectors. Each of these steps produces hazardous wastes, e.g., electrolytic copper plating results in acid soap dumps, copper and tin drag-out, and sulfuric acid. The main sources of metallic contamination (copper (both dissolved and metallic), tin, lead, gold) are the rinses after scrubbing, plating, and etching. Although the greatest amount of waste can be reduced by reusing effluent from the MEMTEK (with some further treatment), the greatest dollar savings can be found by changing the dry film developer. The present brand adheres strongly to the unexposed film and requires an aggressive acid soap; a less aggressive, nonhazardous soap could be used with a less-adhering dry film developer. The Research Brief was developed by the principal investigators and EPA's Risk Reduction Engineering Laboratory, Cincinnati, OH, to announce key findings of an ongoing research project that is fully documented in a separate report of the same title available from the authors. |
| Notes |
Caption title. Shipping list no.: 91-553-P. "July 1991." "EPA/600-M-91-022." |
| Place Published |
Cincinnati, OH |
| Supplementary Notes |
Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
| Access Notes |
Also issued online. |
| Corporate Au Added Ent |
Risk Reduction Engineering Laboratory (U.S.) |
| Title Ser Add Ent |
Environmental research brief. |
| PUB Date Free Form |
1991 |
| Series Title Traced |
Environmental research brief |
| Series Title Untraced |
Environmental research brief |
| NTIS Prices |
PC A02/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20160419144236 |
| Language |
eng |
| SUDOCS Number |
EP 1.96:600/M-91/022 |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
01754cam 2200469Ia 45020 |
