• Description
  • Usage
  • Specification
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CONSTRUCTION

The standard BIOCOMP wastewater treatment plant consists of: I. Mechanical section:
  • grid and grit chamber or sieve-grit chamber together with flushing and dewatering of screened solids and sand.
II. Biological section:
  • anaerobic chamber with predenitrification chamber or a selector,
  • nitrification chamber,
  • denitrification chamber,
  • grit filter or a unit with UV lamps (optional).
III. Settling section:
  • final settling tank,
  • aerobic sludge digestion chamber,
  • sludge press.
BIOFLOW wastewater treatment plant is made of Ecol-Unicon precast reinforced steel chambers what guarantees fast assembly and durability of the whole facility.  

Operation

Untreated wastewater coming into the plant goes into a mechanical device with a spiral sieve or a fine grit with a screened solids press and the horizontal aerated grit chamber with grease chamber, which preliminarily treats the wastewater. Screened solids and sand are taken away to the landfill. Mechanically treated wastewater flows into the separation chamber of the biological reactor. The biological process starts in the anaerobic chamber. Next, the mix of wastewater and sediments flows into the denitrification chamber where nitrogen particles are reduced. Then, wastewater and activated sludge flow into the nitrification chamber and then to the final settling tank. The flow of wastewater with suspended solids through all chambers of the reactor chamber is gravitational. Only recirculation and excessive sludge removal are done mechanically. Separated sludge in the final settling tank in diverted to the biological section. Having been mechanically dewatered and sanitized with lime, sludge is stored and then taken away e.g. for environmental use.  

Results

Operation of BIOFLOW wastewater treatment plants that work using integrated sludge technology, complex wastewater treatment using organic substances mineralisation, nitrification, denitrification and phosphorus removal process using Bardenpho process with Bernard modification shows that the average level of certain particles measured at the outflow are much below the limits stipulated by Polish provisions of law.  

Advantages

  • Short development time (assembly of chambers using precast elements).
  • Low investment costs.
  • High reliability.
  • Durability of materials and devices used.
  • High treatment efficiency, constant in time.
  • High efficiency of biological removal of nitrogen and phosphorus.
  • Easy operation.
  • Monitored by BUMERANG system (one system for all facilities), which provides complete information about the work of installed devices and helps to optimise maintenance costs.
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Ecol-Unicon BIOFLOW wastewater treatment plant

Application

  • Small and medium size towns
  • Small and medium size cities
 

Operation and Maintenance

Operation of the wastewater treatment plant is fully automatic and controlled using BUMERANG system. Operation is limited to monitoring biological processes inside the plant and carrying out periodic inspections. Access to all the devices is provided without the need to empty the chambers or stopping the process inside the plant.
Table. 1. BIOFLOW wastewater treatment plant technical specifications
Size Equivalent Number of Residents Maximum Wastewater Load Throughput Size
BOD5 COD Zog Nog Pog Maximum Hourly Flow Qhmax Daily Wastewater Flow Qśr Chamber Capacity NC and DC Chamber Capacity KB and KPD Settling Tank's Capacity Chamber Capacity ASDC
[m3] [kg O2/d] [kg O2/d] [kg/d] [kg N/d] [kg P/d] [m3/h] [m3/d] m3 m3 m2 m3
200 2 500 150 300 175 30 4.5 20 200 595 31 50 66
400 5 000 300 600 350 60 9 40 400 1364 63 57 132
600 7 500 450 900 525 90 13.5 60 600 2048 94 86 198
800 10 000 600 1200 700 120 18 80 800 2728 125 114 264
1000 12 500 750 1500 875 150 22.5 100 1000 3412 156 143 330
1200 15 000 900 1800 1050 180 27 120 1200 4092 188 171 396
1400 17 500 1050 2100 1225 210 31.5 140 1400 4772 219 200 462
1600 20 000 1200 2400 1400 240 36 160 1600 5036 250 229 484
1800 22 500 1350 2700 1575 270 40.5 180 1800 6140 281 257 594
2000 25 000 1500 3000 1750 300 45 200 2000 6820 313 286 660
There is a possibility to adapt the size of the wastewater treatment plant to the individual needs of the users.