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0 a lot of people mistake wastewater treatment biosolids for something
well a bit grilled so we'll use that stuff
and where did all of the earth you know goldman's
what you see here is sludge or biomass
did a the you know reproduced
and then guard on primary purpose over wastewater treatment plant is to
accelerate major
specifically to develop specific conditions to grow some special bugs
so what are these bugs all the bugs being grown
in the wastewater treatment plant are natural and perform the same tasks
albeit in a little less dense populations in water
and soil around the world ok
the vast majority consist of various populations of bacteria
who performed the balkan the wastewater treatment process such as beauty removal
nitrification denies revision phosphorus uptake
so on generally these bacteria are pretty boring to look at under the
microscope
but not all the bugs are boring looking at a sample under the microscope will
in fact reveal some other more exciting guys better really contribute much to
the overall process
I can play an important role in process controlling
so who are these guys let me make a note here that summer these guys will vary
from process the process
so you'll have to get to know your own population
are
let's take a look at a family called stocks earlier Spurs
here we have a couple Verizon we're gonna talk about
first was born to sell 'em these guys attach onto a block from bacteria
have a retractable tale they can be pretty quick ok
then there's up a stylus similar but more to sell ap a stylus also uses tale
to latch onto bacteria flock formations
however this guy's a little bit more passive and does not have the
retractable
creature
so he doesn't move around as much well
now to the family of them free-swimming sicilians
these guys also come into view different varieties
I'll here's an ass but is going these little critters are
easily identified by their many crawling likes I'll
say hello to allies oneidas the I don't know if I pronounce that correctly
lemme and here's trickled field
look at this guy go Duke
I yes and rotifers bizarro
higher life form with cool Harry Mandelson are much larger than many of
the other bugs we see here
some forms are much more mobile and move around constantly
others little bit less sagged
on our were friends to me my toons
these tiny worms you can be activer just swimmingly isley around the neighborhood
can also be remembered europe's uncertain visions
of nematodes and Rutherford scan be indicative of an older bacterial biomass
and in wastewater are indicative a higher degree a purification or seeding
from the cats growth system
another important bacteria to know are called filamentous bacteria are
these include my birth Rex Parviz lol
Nocardia are by Arthrex old and a whole bunch of other characters with no names
but are classified as type
light light light light light titled 0914
as you would expect filaments can also be used to identify conditions are sluts
there's a whole suite a Vindicator tests available to identify which kinda
present in your sludge
ok so do we care who's in our process and how many of them there are
great question the answer is yes here's why
the new research is that England several years ago
a fight with presence insulated organisms and treatment plans
but they did was here the effluent quality
cue the organisms that were present and they developed table
which correlated which organisms were present
based upon what the f for quality was like
by defined the film's and by qualified and tracking their presence one can use
that information
to understand and identify the
potential effluent quality UNC for example
Marcella and that the stylus RC normally with high-quality effluence whereas
of the Q era is seen more often in a lower quality f1
this English study was updated to reflect the condition for nitrification
nearly wastewater treatment plant and what he did was compare
what particular a ciliated organism for president when nitrification was
occurring and what organisms were present
when it was no longer nitrifying in the second study a table was prepared
and yet showed the abundance of organisms that are more likely to
reflect like if I conditions versus those that
are present 19 99 fine conditions
it all the studies I it was stressed by the researchers
and should be understood by anyone using this identification technique
that the relative abundance will probably change based upon the specific
operating conditions and the wastewater stream characteristics
four th in every wastewater treatment plans as such
the tables provide a good starting point
but should only be used as a starting point and if
one wants to be certain what's going on they develop the table
for their old facility using the studies
one can see that when you see printer searches for a seller
when you see the shell to me because when you see some types rotifers
you see those only when there's low beyond the present in the wastewater
that's not always the case but it's usually an indication that those
conditions
the best solution for any wastewater treatment plant is to do their own
analysis
prepare their own table %uh and if you do that
you'll be able to use the I stock silly it's the rotifers
Andean neighbors to indicate what is happening
and possibly predict the future and whether it's going to change
buck as previously touched upon
film in tracking can be another powerful tool to monitor conditions and
wastewater treatment plant
the abundance and type of elements present can indicate various process
conditions such as
low dissolved oxygen low after I am ratio
septet City 0 excessive grease and oil
nutrient deficiency and low pH
I'll checking film it requires the use of staining tests
tests for sulfur granules cell size and present some scepter
as well as identification I've attached growth on the filament day
Jenkins Richard and a agar develop the chart to use the evaluation process
Jim with sufficient testing the exact filament can be identified
the dominant some a filament indicates the operating conditions
if you want to change the biomass change the underlying condition
which supports that filament for example type 1701
individual rodeo protect 1851
indicates a low ebb damn ratio so what physical parameters could very well
correlate with your micro organism populations
with the following list is a good beginning SB I am selling rates
temperature bood tss a nutrient removal rates
dissolved oxygen levels after Emma ratios
wasting rates in SRT mix liquor concentration
pH in the presence of pollutants what you identify and track
indicator organisms you can change the conditions you have control over
such as the mix liquor concentration ERATION res PLO
pH adjustment nutrient deficiencies they may take some effort
but it could help you do what you do better and the better you operate
the cleaner the water is and that makes it all worth it
ok
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