Biological WWT type “BP ASP” is made in the form of a container, so it can be easily embedded, and can be implemented into bigger wastewater treatment plants. The outside and the partitions walls are made from wall elements and polypropylene sheets. Machine-technological equipment of WWTP consists of:
• a source of pressed air (blowers)
• fine-bubble aeration system
• electrical switch board
The dimensions of the biological WWT plant are in accordance with the European norm EN 12566-3 and 12255. For one population equivalent (PE) the estimated amount of wastewater is 150 l per day and the BOD5 is 60g per day. The guaranteed outlet values are:
• BOD5 25 mg/l,
• COD 100 mg/l and
• SS 25 mg.
Aerobic Anaerobic Devices
Partition
BP ASP K (3-25 PE) – is a biological wastewater treatment plant used for the treating of domestic wastewater of family houses, small companies, and hotels with up to 25 PE. For one population equivalent (PE) the estimated amount of wastewater is 150 l per day and the BOD5 is 60g per day, which is in conformity with the European norm EN 12566-3 and 12255. Guaranteed outlet values are BOD5 25 mg/l, COD 120 mg/l.
BP ASP N (25-170 PE) – is a biological wastewater treatment plant used for treating the communal wastewaters for: hotels, small villages, factories with the capacity of up to 1,000 PE., etc. It is made in the form of a container, so it is easy for embedding and can be implemented into bigger wastewater treatment plants.
For one population equivalent (PE) the estimated amount of wastewater is 150 l per day and the BOD5 is 60g per day, which is in conformity with the European norm EN 12566-3 and 12255.Guaranteed outlet values are BOD5 25 mg/l, COD 100 mg/l, SS 25 mg.
BP ASP N/pump (25-170 PE) – it is used when the incoming sewage system is too deep so it is more economical to bring the wastewater closer to the ground level.
Description of the tehnology
The sediments and light-weight elements are retained in the cleaning area (A). The mechanically purified water flows into the activation area (B), which can be equipped with a biomass carrier. The organic matter is transformed by activation.
The parameters allow the necessary conditions for nitrification. The sedimentation of the biological sludge (which is returned to the activation area) takes place in the cleaning tank (D). The device’s outlet is regulated by the mammoth pump (F). All the superfluous sludge is automatically discharged, at regular intervals, from the activation area into the discharge area.
Maintance Operation
LIST OF MAINTENANCE OPERATIONS
The plant is designed so as not to require constant monitoring. Once on, it is necessary from time to time to carry out checks and operations described below.
Visual check
The regular visual check is a primary condition for successful working of the plant. After opening the lid check:
- the function of aerating
- effluent trough and pipe
- connecting hole
- overall situation
Check of the volume of activated sludge and taking of samples
The volume of sludge in the activation zone must be checked as follows:
- by using a ladle on a stick take water from the activation tank and pour it into Inhofe cone of the 1-liter graduated cylinder
- the filled Imhoff cone (or graduated cylinder), usually a 1-liter cylinder, with water and sludge must be put on a leveled surface and let to set for 30 minutes.
- observe at which height a distinct border between water and sludge settled on the bottom appears.
Extraction of excess sludge The sludge is extracted using a cesspool vehicle by inserting a suction basket into the bottom of the sludge zone. The sludge zone is accessible after opening (removing) of the smell-tight lid. To ensure proper sludge extraction from the sludge zone it is necessary to break the top, usually grease cake, using the reverse run of the cesspool vehicle and mixing the volume of the sludge zone and then extract the sludge to the cesspool vehicle.
- Switch off the blower before inserting the suction basket.
- Insert the suction basket to the sludge zone carefully so as not to harm the bottom of the tank or the technical partition walls.
- Ask the operators of the cesspool vehicle to break the cake and mix the content of the sludge zone using reverse run.
- Fill the sludge zone with clean water right after sludge extraction (e.g. by opening a tap in the connected building) and switch on the blower.
- Do not empty the other zones of the plant tank except for the sludge zone.
On your request, we can offer you WWTP, with the capacity from 1000 – 5000 PE.
PARTNERË PËR DIZAJNIN 3D
PARTNERET STRATEGJIKE
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