It has to be noticed that 30,000+ users downloaded Technique d latest version on 9Apps for free every week! It has been a popular app for a long time. This hot app was released on 2017-12-10. You can find more interesting apps at 9Apps!
Technical Sanitation step by step:
Remediation die wastewater basically consists of two distinct phases:
First Phase = Pre-treatment or settling
Before being processed or purified waste water must be decanted: the heavy materials joining the bottom to form sludge while the light materials rise to the surface to form the cap (mostly fat).
The role of pre-treatment is usually performed by the septic tank or cesspool which seal and sufficient volume determine the performance.
The recommended minimum volume is 600 liters / EH (indication, 1 person = 1 EH)
Second Phase = Water treatment
It is important at this point to distinguish between:
Of devices called "extensive"
These combine sewage systems that principle natural treatment through planted filter, lagoon, restored wetlands, etc ... without mechanical intervention.
Of devices called "intensive"
These combine treatment systems with mechanical and oxygenation; Several techniques are noted:
biomass systems secured on fixed or movable supports
activated sludge systems;
systems to biodiscs
Note: the technique of anaerobic and aerobic bacteria filter by percolation is expressly excluded by the Order of the Walloon Government of 25 September 2008 fixing the full operating conditions of the units and individual treatment plants.
Third Phase = water Secondary clarification (depending on the system)
Some systems are usually supplemented by a secondary sedimentation chamber (same principle as the first phase or pre-treatment.
At this point, we can find a "recirculation" or recovery of the settled sludge pump or airlift with return thereof to the primary clarifier.
Hydraulic engineering
Civil engineering
Genie Water and Environment
Electrical engineering
Ofppt / onep
National Electricity and Water Supply
Technician / Engineer EDF / STEP /
Agent Sanitation
Flushing and Cleansing
9Apps 4.9
