The principle of operation of treatment facilities
• The principle of the treatment plants
Effluents from storm sewage, sewage from homes, companies collectors enter the receiving chamber of the quencher (quencher quenches because effluent flow rate)
Next begins the process of mechanical cleaning. Large debris stays in the so-called lattices
Rubbish delayed in lattices, lying scrapers (combs) and falls down on the conveyor. It further moves in the press for dewatering and pressing, respectively, and then taken out.
Then the waste water flows into the sand trap.
Thanks to the particular flow rate, large particles settle to the bottom, flows further tested and sand mechanical scrapers raked in the pit, which is pumped (unfortunately pumped device which is unable to take a picture).
Reserve this sand trap, it is possible to see the very scrapers.
Next, drains cleaned from sand, a large floating debris moving in the primary clarifiers
There drains are asserted, the crude precipitate (sludge) deposited on the bottom, farm (scraper) raked into the sump, it is pumped from the mud pumps located on the pump station. (Photo pumps will be at the end)
Then the water flows into the aerotentki. In aerotentkah live bacteria, micro-organisms. They actively consume particles of sludge from wastewater
Then the water flows into secondary clarifiers with dead microorganisms that eat bacteria from sewage. Now it's swollen yl) tupanul not sfotkal it. But it resembles mud flakes.
Now there is a re-cleaning process in aeration tanks for the second stage, and from there the water flows into the tertiary clarifiers, and thence into the duct effluent
there is a small water intake pumps from this channel, which chased her through a chlorination plant (photo unavailable, perhaps add in comments). Water with a sufficient concentration of chlorine after chlorination goes to this same open channel but downstream and mixed with the other transparent purified water. Then pure water is discharged by gravity into the river.
By the way. Sludge from the aeration tanks are not all goes to landfill. Most of them come here in this chamber
From a small pumped ilouplotnitel (same round sump) pumps
From this very ilouplotnitelya sludge goes to the sludge dewatering plant (photos can not make, there's too much information). In this apparatus yl dewatered and outlet remains almost dry gel. In fact it is human activity products.
Here are a couple photos of pieces which sail on the first stage of the process