Organic Waste Recycling

Characteristics of organic wastes 37

Plant B Combined 5550-7400 13300-19500 1970-3850 0 86-115 0 3.8-5.2 0 135-1010

Wash water 200-1700 2000-4850 400-6100 0-1.1 14-18 1.2-1.3 4.2-7.1 0.6-5.3 20-220

First-grade starch wastewater

Plant A Separator wastewater 3000-4000 3100-13900 1480-8400 0-4.7 19-39 5.6-8.5 3.4-4.2 0 670-860

Mean 4,150 7580 850 16 70 6.6 3.4 1 -

Supernatant Range 1720-6820 4700-10000 470-1710 1.2-35.0 4-109 0-10.5 2.6-4.0 0-2.7 -

Mean 1190 2700 1880 1.9 32 3.6 4.2 2.7 -

Second-grade starch wastewater

Washwater Range 300-2490 610-6110 290-4240 0-7.8 0-67 0-6.0 3-4.6 0-4.9 -

Characteristics, mg/L (except as indicated) BOD

5

CODSuspended solids NH

-N 3

Org-N Phosphorus pH DO Acidity

Table 2.10 Characteris

tics of tapioca starch wastewater (Aft

er Thongkas

ame 1968 and Unkulvasapaul 1975)