Table 1.
Characteristics of the reclaimed urban wastewater used in the study in relation to the EU requirements for irrigation use (regulation 2020/741).
| Parameter | Reclaimed urban wastewater | Classification1 |
|---|---|---|
| Turbidity, NTU | <1 | A |
| Biochemical oxygen demand (BOD), mg O2/L | 10.7 | B |
| Total suspended solids, mg/L | <1 | A |
| Escherichia coli, CFU/100 mL | 55 | B |
| Intestinal nematodes, eggs/L | <1 | A |
1 Class A, RUW suited for all food crops, including root crops consumed raw and food crops where the edible portion is in direct contact with reclaimed water. Class B, RUW suited for non-food crops including crops to feed milk- or meat-producing animals.