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Recycling Treated Municipal Wastewater for Industrial Water Use

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Section 2<br />

Implementation Considerations<br />

Craddock Consulting Engineers 2-19<br />

In Association with CDM& James Crook<br />

TM1-Sec2_0707.doc<br />

Table 2.9. <strong>Industrial</strong> Process <strong>Water</strong> Quality Requirements<br />

Parameter*<br />

Mechanical<br />

Pulping<br />

Pulp & Paper Textiles<br />

Chemical,<br />

Unbleached<br />

Pulp &<br />

Paper<br />

Bleached<br />

Chemical<br />

Petrochem<br />

& coal Sizing<br />

Suspension<br />

Scouring,<br />

Bleach &<br />

dye<br />

Cu -- -- -- -- 0.05 0.01 -- --<br />

Fe 0.3 1.0 0.1 0.1 1.0 0.3 0.1 2.5<br />

Mn 0.1 0.5 0.05 0.1 -- 0.05 0.01 0.5<br />

Ca -- 20 20 68 75 -- -- --<br />

Mg -- 12 12 19 30 -- -- --<br />

Cl 1,000 200 200 500 300 -- -- 250<br />

HCO3 -- -- -- 128 -- -- -- --<br />

NO3 -- -- -- 5 -- -- -- --<br />

SO4 -- -- -- 100 -- -- -- 250<br />

SiO2 -- 50 50 50 -- -- -- 35<br />

Hardness -- 100 100 250 350 25 25 --<br />

Alkalinity -- -- -- 125 -- -- -- 400<br />

TDS -- -- -- 1,000 1,000 100 100 600<br />

TSS -- 10 10 5 10 5 5 500<br />

Color 30 30 10 20 -- 5 5 --<br />

Cement<br />

pH 6 – 10 6 – 10 6 – 10 6.2 – 8.3 6 – 9 -- -- 6.5 – 8.5<br />

CCE -- -- -- -- -- -- -- 1<br />

*All values in mg/L except color and pH.<br />

Source: <strong>Water</strong> Pollution Control Federation [1989].

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