4.1 US Environmental Regulations for Subcategory
of Luminescent Materials [16]
New source of this subcategory that introduces pollutants into a Publicly Owned
Treatment Works (POTWs) must achieve the pretreatment standards for new sources
(PSNS) as stated in Table 4.46. The flowchart of wastewater treatment in luminescent materials subcategory is presented in Fig. 4.5.
Furthermore, the requirement for the new source performance standard (NSPS)
for the luminescent material subcategory is listed in Table 4.47.
Table 4.46 Pretreatment
standard for new sources for
luminescent material
subcategory
Pollutant
One day (mg/L)
Monthly average (mg/L)
Cadmium
0.55
0.26
Antimony
0.10
0.04
Zinc
1.64
0.67
Fluoride
35.0
18.0
Source: [26]
Polyelectrolyte
Lime
CaCl 2
Process
Waste
Solids Contract – Hauled
Polyelectrolyte
Lime
CaCl 2
Process
Waste
Solids Contract – Hauled
Chemical precipitation
and clarification
pH Adjustment
Equalization
Filter Press
Chemical
precipitation and
clarification
pH Adjustment
Equalization
Filter Press
Dual
Media
Filter
Fig. 4.5 Wastewater treatment for luminescent material subcategory. (Source: [6])
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