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2.8 Exercises
2.1 You are to visit an agro-based industry or an animal farm and determine the
waste quantity and characteristics. Compare the results obtained with the
data presented in Chapter 2.
2.2 From the data given in Table 2.1, derive the following information for your
hometown:
a) Daily generation of human excreta both in wet weight and in volume,
assuming a density of 1.05 kg/L.
b) Daily production of total solids from the excreta.
c) Daily production of total nitrogen from the excreta.
d) Daily production of BOD 5 from the excreta.
e) C/N ratio of the excreta.
2.3 A chicken farm has 5000 laying hens in stock, each with an average live
weight (LW) of 1.5 kg. Use the data in Table 2.6 to estimate the following:
a) Daily production of chicken wastes in wet weight.
b) Daily production of total solids from the chicken farm.
c) Daily production of volatile solids.
d) Daily production of total nitrogen.