Dessau, Ingénierie et Construction

DESSAU wins three prestigious Engineering Awards, 03/28/2008
Last night at the gala ceremony for the sixth Grands Prix du génie-conseil québécois 2008, Quebec’s major consulting-engineering awards, Dessau won three awards (Léonards). The ceremony took place at the Montreal Science Centre.
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LaPinière Wastewater treatment facility, Laval

Management of physicochemical treatment plant operations designed to treat an average discharge of 240 000 m3/d per second and maximal discharge of 591 600 m3/d (hourly peak) and average discharges of 24 803 kg/d of SS (103 mg/L), of 22 836 kg/d of DBO5 (95 mg/L) and 811 kg/d of total P (3,5 mg/L). This treatment plant provides service to 245 000 persons.

Included in the treatment plant are:

Wastewater pumping station;

Pre-treatment (4 screens, 4 aerated grit chambers);

Primary treatment (6 flocculating tanks and 6 clarifiers);

Chemical phosphate removal;

UV disinfection;

Dewatering and thermal stabilization of sludge;

Odour treatment

Services provided

Process optimisation
Preparation and management of operating budget
Collective agreement management
Communications management
Respect of emission-related standards
Assistance to the city in their choice of equipment / technologies for optimization
Personnel and working team management
Procurement management
Management of interception network
Laboratory analysis
Upkeep of instrumentation and controls
Preparation of monthly reports.