INTERNATIONAL CLEANER PRODUCTION INFORMATION CLEARINGHOUSE

CASE STUDY # 100

1. Headline: Good housekeeping reduces wastes in a aviation,

industrial and seaport complex.

2. Background: See below.

3. Cleaner Production Principle: Good housekeeping improved

operating procedures

4. Description of Cleaner Production Application: The waste

audit investigated the feasible options for reducing the

volume of solvent used and disposed. There are over 100

solvent end use points on the base. Four of ten stations

were audited in detail since these stations represented a

fair cross section of the activities that occur. For the

four stations, a total of 36 source reduction options were

considered. Several options were investigated in further

detail these included: use of closed tanks and increasing

the cleaning efficiency by increasing the degree of

agitation; increasing cleaning efficiency by employing a

two-step counter-current cleaning sequence; reclaiming

solvent from spent 1,1,1-TCE by using the degreaser as a

still; and continuous filtering of stripper solutions.

Material/Energy Balance and Substitutions

FEEDSTOCKS: Spent

solvents from degreasing parts

and paint stripping.

WASTES: Spent

solvents

MEDIUM: Solvents

5. Economics

CAPITAL COST:

$600-$6,820

MONTHS TO RECOVER: 7-97

DIRECT COST:

$220-$2,770/year

6. Advantages:

FEEDSTOCK REDUCTION: 33-64%

WASTE PRODUCTION: 50-75%

reduction

IMPACT: The

option presented will reduce the

virgin solvent requirements and

reduce the volume of disposed

spent solvents.

7. Constraints: No information provided.

8. Contact and Citation:

"Waste Minimization Audit Report - Case Studies of Solvent

Waste from Parts Cleaning and from Electronic Capacitor

Manufacturing Operations," Hazardous Waste Engineering

Research Laboratory, Office of Research and Development,

U.S. EPA, Cincinnati, Ohio, Page 29.

Name and Location of Company

U.S. Environmental Protection Agency

Hazardous Waste Engineering Research Laboratory

Cincinnati, Ohio 45268

United States

c/o Harry Freeman

9. Keywords: United States, USA, transport, good

housekeeping, solvent, cleaning, degreasing, TCE,

filtration, ISIC 4582.

10. Reviewer's Comments: This case study was originally

abstracted for the United States Environmental Protection

Agency's Pollution Prevention Information Clearinghouse.

It underwent a UNEP IE funded technical review in 1994 for

quality and completeness. It was edited for the ICPIC

diskette by UNEP IE in July 1995.

(DOCNO: UNEP01.52 101-008-B-016)