Pollution prevention and water conservation in metals finishing operations

Conference · Fri Nov 01 04:00:00 EST 1996

OSTI ID:395344

O`Shaughnessy, J; Clark, W ^[1]; Lizotte, Jr, R P; Mikutel, D ^[2]

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1. Worcester Polytechnic Inst., MA (United States)
2. Texas Instruments Inc., Attleboro, MA (United States)

Attleboro, Massachusetts is the headquarters of the Materials and Controls Group of Texas Instruments Incorporated (Texas Instruments). In support of their activities, Texas Instruments operates a number of metal finishing and electroplating processes. The water supply and the wastewater treatment requirements are supplied throughout the facility from a central location. Water supply quality requirements varies with each manufacturing operation. As a result, manufacturing operations are classified as either high level or a lower water quality. The facility has two methods of wastewater treatment and disposal. The first method involves hydroxide and sulfide metals precipitation prior to discharge to a surface water. The second method involves metals precipitation, filtration, and discharge via sewer to the Attleboro WTF. The facility is limited to a maximum wastewater discharge of 460,000 gallons per day to surface water under the existing National Pollution Discharge Elimination System (NPDES) permit. There is also a hydraulic flow restriction on pretreated wastewater that is discharged to the Attleboro WTF. Both of these restrictions combined with increased production could cause the facility to reach the treatment capacity. The net effect is that wastewater discharge problems are becoming restrictive to the company`s growth. This paper reviews Texas Instruments efforts to overcome these restrictions through pollution prevention and reuse practices rather than expansion of end of pipe treatment methods.

• OSTI ID: 395344
• Report Number(s): CONF-9505206--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ECONOMIC ANALYSIS
METAL INDUSTRY
METALS
OSMOSIS
POLLUTION CONTROL
PRECIPITATION
RECYCLING
RESOURCE MANAGEMENT
WASTE WATER
WATER CHEMISTRY
WATER QUALITY
WATER REQUIREMENTS
WATER TREATMENT