This paper describes a four-month pilot study on peracetic acid disinfection of unchlorinated tertiary effluent for unrestricted re-use in agriculture carried out at West Bari (Italy) sewage-treatment works. Dosages and contact times ranging from 1 to 500 mg/l and 5 to 60 mins, respectively, indicated that 10 mg/l of peracetic acid, with a 30-min contact time, achieved the WHO faecal coliform guideline (1000 CFU/100 ml). Much higher doses (greater than or equal to 400 mg/l and 30 mins) were required to meet the corresponding Californian limit of two colony-forming units/100 ml, which has also been adopted in Italy. Efficient mixing of the disinfectant (in one shot addition) was mandatory - particularly at lower dosages (1-10 mg/l) where there was a higher concentration of suspended solids (>5 mg/l).

Disinfection With Peracetic Acid for Domestic Sewage Re‐Use in Agriculture / Liberti, L.; Lopez, A.; Notarnicola, M.. - In: JOURNAL OF THE CHARTERED INSTITUTION OF WATER AND ENVIRONMENTAL MANAGEMENT. - ISSN 1360-4015. - STAMPA. - 13:4(1999), pp. 262-269. [10.1111/j.1747-6593.1999.tb01045.x]

Disinfection With Peracetic Acid for Domestic Sewage Re‐Use in Agriculture

L. Liberti;M. Notarnicola
1999-01-01

Abstract

This paper describes a four-month pilot study on peracetic acid disinfection of unchlorinated tertiary effluent for unrestricted re-use in agriculture carried out at West Bari (Italy) sewage-treatment works. Dosages and contact times ranging from 1 to 500 mg/l and 5 to 60 mins, respectively, indicated that 10 mg/l of peracetic acid, with a 30-min contact time, achieved the WHO faecal coliform guideline (1000 CFU/100 ml). Much higher doses (greater than or equal to 400 mg/l and 30 mins) were required to meet the corresponding Californian limit of two colony-forming units/100 ml, which has also been adopted in Italy. Efficient mixing of the disinfectant (in one shot addition) was mandatory - particularly at lower dosages (1-10 mg/l) where there was a higher concentration of suspended solids (>5 mg/l).
1999
Disinfection With Peracetic Acid for Domestic Sewage Re‐Use in Agriculture / Liberti, L.; Lopez, A.; Notarnicola, M.. - In: JOURNAL OF THE CHARTERED INSTITUTION OF WATER AND ENVIRONMENTAL MANAGEMENT. - ISSN 1360-4015. - STAMPA. - 13:4(1999), pp. 262-269. [10.1111/j.1747-6593.1999.tb01045.x]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/10255
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