In the cathode ray tube subcategory, acetone, methyl ethyl ketone, toluene, and
methanol are the major solvents that are usually released during cleaning and
degreasing processes. Lead and zinc are the respective metals that are released
during the frit sealing process and the phosphor strip process. Other releases are
presented in Table 4.42 and the subcategory transfers are summarized in Table 4.43.
In comparison with other industries, the Toxics Release Inventory of the electrical
and electronic component industry (SIC 36) is relatively the least. Moreover, the
average transfer per facility in this industry is relatively better than some industrial
sectors like fabricated metal industry. However, with the growing rate in this sector,
among the manufacturing industry, this position might have shifted to the higher
side. The Toxics Release Inventory data for selected industries is presented in
Table 4.44.
3.2 Waste Generation Prevention
Waste generation or pollution prevention in manufacturing industry simply entails
the use of raw materials and production processes that minimize or eradicate the
creation of waste or pollutions at the source. This can be achieved through materials
input reduction, reengineering processes to reuse by-products, improving management practices, and the use of alternatives to toxic chemicals. Many environmental
agencies, particularly the US Environmental Protection Agency, are vanguard in the
promotion of pollution prevention because of its cost-effectiveness as against the
cost of reducing pollutants that pose risk to the environment and human health.
Pollution prevention techniques and processes applicable to the electrical and
electronic industry can be broadly divided into process or equipment modification,
raw materials substitution or elimination, waste segregation (separation or preparation), as well as recycling. Examples of some of these techniques are summarized in
Table 4.45.
4 Electrical and Electronic Component Industry Point
Source Discharge Effluent Limitations, Performance
Standards, and Pretreatment Standards
Limitations and standards for discharge of effluent primarily target the selection of
best method, technology, and equipment as well as the public environmental concern
that can be put in place by the manufacturing industries to reduce the discharge of
pollutants into the environment. Some of these are discussed below under subcategories of the Electrical and Electronic Component Industry Category.
178
O. S. Amuda et al.
methanol are the major solvents that are usually released during cleaning and
degreasing processes. Lead and zinc are the respective metals that are released
during the frit sealing process and the phosphor strip process. Other releases are
presented in Table 4.42 and the subcategory transfers are summarized in Table 4.43.
In comparison with other industries, the Toxics Release Inventory of the electrical
and electronic component industry (SIC 36) is relatively the least. Moreover, the
average transfer per facility in this industry is relatively better than some industrial
sectors like fabricated metal industry. However, with the growing rate in this sector,
among the manufacturing industry, this position might have shifted to the higher
side. The Toxics Release Inventory data for selected industries is presented in
Table 4.44.
3.2 Waste Generation Prevention
Waste generation or pollution prevention in manufacturing industry simply entails
the use of raw materials and production processes that minimize or eradicate the
creation of waste or pollutions at the source. This can be achieved through materials
input reduction, reengineering processes to reuse by-products, improving management practices, and the use of alternatives to toxic chemicals. Many environmental
agencies, particularly the US Environmental Protection Agency, are vanguard in the
promotion of pollution prevention because of its cost-effectiveness as against the
cost of reducing pollutants that pose risk to the environment and human health.
Pollution prevention techniques and processes applicable to the electrical and
electronic industry can be broadly divided into process or equipment modification,
raw materials substitution or elimination, waste segregation (separation or preparation), as well as recycling. Examples of some of these techniques are summarized in
Table 4.45.
4 Electrical and Electronic Component Industry Point
Source Discharge Effluent Limitations, Performance
Standards, and Pretreatment Standards
Limitations and standards for discharge of effluent primarily target the selection of
best method, technology, and equipment as well as the public environmental concern
that can be put in place by the manufacturing industries to reduce the discharge of
pollutants into the environment. Some of these are discussed below under subcategories of the Electrical and Electronic Component Industry Category.
178
O. S. Amuda et al.