Encyclopedia of Environmental Science and Engineering, Volume I and II

722 MODELING OF ESTUARINE WATER QUALITY

TABLE 2

Quality of domestic wastes (Concentration units are mg/L)

Constituent Strong Medium Weak

Mass discharge coefficients

(9 lbs/person/day)

Solids, Total 1,000 500 200 —

Volatile 700 350 120 —

Fixed 300 150 80 —

Suspended, Total 500 300 100 0.23

Volatile 400 250 70 —

Fixed 100 50 30 —

Dissolved, Total 500 200 100 —

Volatile 300 100 50 —

Fixed 200 200 50 —

BOD (5-Day 20°C) 300 200 100 0.2

Dissolved Oxygen 0 0 0 —

Nitrogen, Total 86 50 25 0.06

Organic 35 20 10 0.035

Ammonia 50 30 15 —

Nitrites (NO 2 ) 0.10 0.25 0 0.025

Nitrates (NO 3 ) 0.40 0.20 0.10 —

Chlorides 175 100 15 —

Alkalinity 200 100 50 —

Fats 40 20 0 0.03

Phosphorus — — — 0.012

Flow — — — 135 gal/person/day

Source: Water Encyclopedia, 1971.

TABLE 3

Industrial wastes characteristies

Industry

(Unit)

Flow

(gal/unit)

BOD

(lb/unit)

Suspended solids

(lb/unit)

Brewery (Barrel) 370 1.9 1.03

Cannery (Case) 75 0.7 0.8

Dairy (100 LB.)

Butter 410–1,350 0.34–1.68 —

Cheese 1,290–2,310 0.45–3.0 —

Ice Cream 620–1,200 0 —

Milk 200–500 0.05–0.26 —

Meat Packing (100 LB.

live wt. killed)

1,294 14.4 —

Poultry Proc.

(1000 birds)

10,400 26.2 —

Petrol, Ref. (Barrel) 100 0.1 —

Pulp and Paper (ton)

Bleached kraft 45,000 120 170

Bleached sulfite 55,000 330 100

Steel Mill (Injet Ten) 10,000 — 100

Tannery (100 LB.) 660 6.2 13.0

Textile (LB. Cloth)

Wool 63 0.30 —

Cotton 38 0.16 0.07

Synthetics 15 0.07–0.10 0.02–0.07

Source: Malina, 1970.

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