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PÔLE SANTÉ SARTHE ET LOIR DE SABLÉ-SUR-SARTHE | 72 | France

Capacity in IE : 2 000
Year of construction : 2000
Project owner : Pôle Santé Sarthe et Loir
Consultant : IRH

TYPE OF TREATMENT

Water treatment
- Circular aeration basin 400 m³
- 1 surface aerator 22 kw
- Deaerator
- Floating matters storage tank
- Scraper settling tank Ø 9 m
- Phosphate removal


Sludge treatment
- Sludge recirculation
- Sludge thickener
- Gravity belt thickener
- Sludge storage tank 240 m³

Smells treatment
Deodorizing of the lifting station

TECHNICAL DATA OF PLANT

	Capacity of treatment	Treated water discharge standards
Capacity of treatment	2000 IE
Daily volume	208 m³/d
Peak flow	34 m³/h

Biological oxygen demand (BOD5)	117 kg/d	20 mg/l
Chemical oxygen demand (COD)	239 kg/d	90 mg/l
Suspended solids	105 kg/d	30 mg/l
Total nitrogen	19 kg/d	15 mg/l
Total phosphorus	4 kg/d	1,5 mg/l

The Inhabitant Equivalent (IE) is a notion used in sanitation to evaluate the size of waste water treatment plants, it corresponds to an estimate of pollution caused by the "inhabitant equivalent" defined thus :
- 60 g/inhabitant/day for DBO5
- 90 g/inhabitant/day for suspended matter
- 15 g/inhabitant/day for total nitrogen
- 4 g/inhabitant/day for total phosphor

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