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Floating Bioreactors


Use:
Floating bioreactors are intended for:

  • For biological purification of foul water from organic particles, nitrates, nitrites, ammonia, phosphorus, sewage grease, oil products, suspended particles, iron, coloring and so on.
  • For biological afterpurification of foul water to use the water for reservoir with fish.

An example of system BIOREM, 100 m3/day:


Self-cleansing system "BIOREM" is intended for complete biological purification of foul waters and mineralization of sludge, with productivity up to 100 m3/day

1Anaerobic bioreactor; 2Aerotank of 1 step; 3Aerotank of 2 step; 4Hydroautomatic active and excess sludge separator; 5Biofilter for afterpurification; 6Contact reservoir for purified water disinfection; 7Container for cleansing water and sledge recirculation; 8-Container for run-of and cleansing waters; 31-Pump.

Effectiveness of purification of water for a village with 500 inhabitants

figures

dimensionality

Input

output

Unit

7,3

7,1

COD

mg/l

490

46

BOD5

mg/l

270

3

Total nitrogen

mg/l

10

0,5

Total ammonia

mg/l

-

10

Total phosphorus

mg/l

17

1

TTS

mg/l

300

4

dissolved oxygen

mg/l

-

4 - 7

The note: expense of electricity, on average, 0, 030 kW/m3

Weight BIOREM, 100 m3/day, from carbon steel: 8 tons (in this case: position.1 6, round factory-made containers) or 6 tons (in this case: manufacturing of "BIOREM" on place; dimensions: 4 4 4 m.)

Functioning of BIOREM:

Source water enters through floating bioreactors, which are actually hydroautomatic filters. A biofilm, which consists of a quantity of germs is being formed on the floating filtering loading, which use the all these contaminations as food to live and function. In the process of vital functions of the germs, water contaminations dissociate into dioxide of carbon, nitrogen, methane, and the remaining part of the contamination stays inside of the germ's bodies. When some bacteria die, they are replaced with the new ones, which create a continuous process of water self-purification and contaminations' mineralization.

With growth of hydraulic resistance of floating filtering load the water level in hydraulic rotation increases and, with a value set during commissioning of the system, the equipment self-cleanses with the help of hydraulic robots. Excessive sledge is taken out for its further mineralization in recycling mode and for periodical utilization in filtering bags, or is being used as an organic fertilizer in agriculture.

Technical-economical parameters of the systems are suggested in our offers for the customer after having analyzed the filled-up questionnaire form.

For aeration of water in voluminous aerotanks the small bubbling aerators "Fortes" with perforated rubber dispersants are being used (airlift or ejection airing).

How "Fortex" works:

Atmospheric air enters the airing system Fortex under pressure; the airing devices are located on the bottom of aerotank. Air presses the flexible rubber perforated membrane (dispersants), blows it up and, through squeezes itself out in the water through the previously made openings (on the pictures).

If the openings get plugged with pollutions, aerators receive a short shot of air with greater pressure than before, which enlargers the diameters of the openings a little bit and cleanses them.

When the air stops running through aerators "Fortex", hydrostatic water column in the aerotank immediately presses the blank part of the flexible rubber disperser to the end of the pipe through which the air is arriving, blocking thus the water to the air dispersing system, that is it acts as a safe check valve.

Average resistance of aerator "Fortex" - 0,05 m.
Recommended air quantity for one aerator: 3,54 m3/hour
Use of oxygen in the aerotank: 3,8 - 8% per water column 1 m.
Thickness of positioning of aerators in the aerotank: 0,5 - 4,5 items/sq.m
Weight: 0,8 kg.



Aerator Fortex
 
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