Transcript ЭНЕРГОЭФФЕКТИВНОСТЬ

BiOKS
Integrated biological wastewater
treatment stations w/ capacity up
to 600 cmpd
TECHNOBRIDGE SERVICE LLC
Moscow 2013
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Process chart description of BiOKS stations with capacity 6
to 600 cmpd
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Stations comprise trains of biological treatment, advanced treatment and decontamination. An every train is
capable to operate at 40 to 110 per cent of production rate vs. rated capacity. Stations’ operation is based on a
full biological treatment technology employing advanced treatment methods including nitri-/denitrification and
dephosphorization processes allowing treated water discharge into fishery bodies of water.
Wastewater treatment process:
Wastewater supplied for treatment is directed to mechanized screen to remove coarsely dispersed solids.
Strained wastewater enters a membrane grit removal nodes where in conical bins sand and other mineral
particle settle, and are discharged into sludge tank thereafter.
Wastewater cleaned of solids and impurities is supplied in a balance tank where wastes are balanced per
composition and evenly pass onto the following treatment stage.
From the balance tank wastewater is pumped proportionally to the first biological treatment stage, i.e.
Denitrifier, where sludge recycling from the secondary settling tanks is directed as well. In Denitrifier nitrites and
nitrates recover to free gas venting into atmosphere. Denitrifying sludge is in suspended state and is partially
held on KARKAS loading node assembled in cartridges.
On the second biological treatment stage, i.e. in Air Tank, the main contaminants removal takes place, using
activated sludge represented by biocoenosis of organisms developed in aerobic conditions on the organic
contaminants contained in wastewater. From the Air Tank wastewater is supplied to Nitrifier through the semisubmersed barrier.
In the course of nitrification ammonia is oxidized to nitrites and nitrates that recycle into Denitrifier together
with sludge from the secondary tank to recover nitrogen and vent into air. To intensify the process, cartridges
KONTUR with biological content are installed in Nitrifiers. In order to remove excessive phosphorus to meet the
norms of a fishery bodies of water, a reagent solution is pumped into Nitrifier automatically, using dosing unit.
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Process chart description of BiOKS stations with capacity 6
to 600 cmpd
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Sludge removal from the system is performed in the secondary settling tanks; an activated sludge from the
secondary tanks is split onto two flows, recycling supplied on the first treatment stage, and excessive, supplied
to the sludge tank.
Advanced treatment of biologically treated wastewater up to the norms of fishery bodies of water is performed
gradually, on filters with floating expanded polystyrene medium, and adsorbing filters with activated coal
medium.
Treated wastewater is supplied then to biocide plant where it is exposed to UV for decontamination, whereupon
it is directed to the outlet header.
During operation of the advanced treatment stations an excessive activated sludge is accumulated with moisture
of 99.4%, that is removed from the unit with pressure and can be supplied to every device for accumulation or
dewatering.
BiOKS Stations envisage sludge tank pre-installed.
Sediments are removed by a sewage truck for further processing or disposal in area approved by local sanitary
authorities.
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Piping and Instrumentation Diagram of advanced biological
wastewater treatment on BiOKS station w/ capacity 6 to 600
cmpd
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Quantitative indicators of wastewater after
treatment at BiOKS stations
Indicator
Suspended solids, ppm
Post-treatment values
+0.75 to background
BOD full
3,0
Ammonium salts nitrogen
0.39
Phosphorus of phosphates
0.2
Nitrogen of nitrates
9.1
Nitrogen of nitrites
0.02
Synthetic Surfactants
0.5
Wastewater temperature, 0С
pH
+13…+35
6.5…8.5
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Mechanical wastewater treatment
Mechanical screen used at BiOKS stations holds and
removes from wastewater contaminants exceeding gaps of
the filtering element (above 5 mm). These contaminants
are removed from time to time from the rake by means of
remover, and via shute falls on conveyor or in waste bin.
Intervals in between activation depends on applied
automation mode of the screen.
Two tangential grit removal plants of BiOKS stations are
designed for preliminary gravity recovery of insoluble
mineral solids from wastewater (sand, refuse burnout,
broken glass). These plants have a round shape and
tangential approach of wastewater, ensuring screw-wise
fluid moving to the plants’ walls. Grit removal plants trap in
a conical bin solids of 0.15 to 0.25 mm in size, and bigger.
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Biological wastewater treatment.
Nozzles applied for microorganisms immobilization.
KARKAS
KONTUR
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Application of KARKAS biological medium:
Allows for increase in facility capacity by 25… 35%
over better conditions for oxygen approach to
biological film and removing metabolism products;
Bigger porosity combined with high adhesion surface;
Corrosion resistance;
Enhanced rigidity;
Easy to install.
Application of KONTUR will enable:
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Increase in treatment efficiency in terms of BOD,
ammonium nitrogen and suspended solids;
Improve treatment substantially in terms of
organics resistant to oxidation (synthetic
surfactants, oil products, etc.).
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Treated wastewater
decontamination
Advantages of UV decontamination applied on BiOKS stations
Applied UV lamps does not contain free Mercury. They
employ hard amalgam instead, i.e. alloy of other
metals with Mercury. Such a solution allows for
substantial decrease in environmental hazards of these
lamps. First of all, amount of Mercury is decreased in
lamp, second, Mercury is in tied state and pressure of
its hazard vapors under ambient temperature is
enormously less than of metal Mercury. If amalgam UV
lamps are occasionally broken so there is no need for
demercurization activities – it is enough to contain
amalgam and send it for disposal as a normal
fluorescent lamp.
1. Differentiation of UV water treatment applied in our process is in
use of both shortwave and vacuum black light enabling practically
full decontamination (up to 99.9999 %) and termination of bacteria
and viruses in quantities unachievable for conventional methods
applying longer waves of a black light spectrum and oxidation by
ozone, with energy consumption of 3-4 times higher comparing to
above mentioned technology.
2. In the course of simultaneous UV radiation, Ultra Sonic and acoustic
waves impact on water medium strong oxidizers originate separated
evenly by the treatable volume, which allows for improvement of
treatment efficiency of biocide unit up to 103 times and fully
exterminate (full photochemical oxidation) any form (including
sporous) of microorganisms, viruses and animalcular in
concentrations up to 106 u/L.
3. Energy consumption for decontamination are below 0.02 kWh/m3.
4. Run-life of SWAROG UV lamps exceeds 16,000 hours. Standard runlife of amalgam UV lamp is within 10,000-12,000 hours.
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Packaged design of BiOKS stations
Costs for construction of metal structures are
approx. 30-40% less than reinforced concrete or
brick analogues, and time savings are much more
substantial
BiOKS Station
TECHNOBRIDGE SERVICE LLC
Biological wastewater treatment stations BiOKS
Solid domestic wastes and sediments
storage and disposal
Temporary storage of bags with solid domestic waste is implemented using
up-to-date garbage containers МКЦ-1100 (MKTs-1100) within the treatment
facility sites. Capacity of one container is 1.1 cu. m, maximum load is 510 Kg.
Container is arranged with wheels allowing for easy transportation to the
bags unloading site and further returning to the specialized pad.
It is worth to mention the following undeniable advantages of this
method:
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Ecological purity. Application of garbage container is a perfect way to
control unorganized garbage landfills origination. Insulated tank with a lid
prevents area foulness.
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Efficiency of loading and transportation. Having a fleet of specialized trucks
a transport company employees will spend a couple of minutes to reload and
remove waste. Garbage removal process can be performed on a ring-down basis
or per special schedule using container of required capacity.
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Flexibility and convenience. Tanks used match perfectly to waste of a
different sort and categories, construction (small and large), industrial and
domestic.