Table 3.

Range of variability of physical-chemical and microbiological characterization of hospital wastewater and urban wastewater.

Parameter	Hospital wastewater	Urban wastewater
pH	6.9–9.18	7.5–8.5
Conductivity (mS cm−1)	750–1000	420–1340
SS (mg L−1)	120–400	120–350
COD (mg L−1)	450–2300	500–600
BOD5 mg L−1	150–603	100–400
TKN (mg L−1)	30–100	20–70
NH4 (mg L−1)	10–55	12–45
Ptot (mg L−1)	3–8	4–10
Chlorides (mg L−1)	80–400	30–100
Fats and oils (mg L−1)	13–60	50–150
Total detergents (mg L−1)	3–7.2	4–8
Total coliforms (MPN/100 mL)	106–109	107–108
Fecal coliforms (MPN/100 mL)	103–107	106–107
E. coli (MPN/100 mL)	103–106	106–107
Streptococci (MPN/100 mL)	103–105	103–105