Table 6 Ranges of yearly average concentrations of TP in the effluent of the WWTP [12]
FDM subsector | Yearly average TP concentration (mg/l) | ||
|---|---|---|---|
Direct discharge | Indirect discharge | Landspreading | |
Animal feed | 0.2–2.8 | 1–118 | NI |
Brewing | 0.5–4.3 | 1.4–89 | NI |
Dairies | 0.1–6.3 | 3.2–75 | 0.14–1.3 |
Ethanol production | 0.8–1.1 | NI | NI |
Fish and shellfish processing | NI | NI | NI |
Fruit and vegetables | 0.2–16 | 2.2–22.3 | 2–23 |
Grain milling | NI | NI | NI |
Meat processing | 0.4–6.2 | 3.9–47.1 | 5.1–9.4 |
Oilseed processing and vegetable oil refining | 0.1–39 | 0.7–2655 | NI |
Olive oil processing and refining | NI | 6–12 | NI |
Soft drinks and nectar/juice | 0.1–2.4 | 18–30 | 2.1–3.3 |
Starch production | 0.2–4.8 | 0.8–2.4 | 4.4–380 |
Sugar manufacturing | 0.1–2.7 | 1.4–2 | 10–14 |
All FDM subsectors | 0.1–39 | 0.7–2655 | 0.1–380 |