ATB Water English: PUROO ® small wastewater treatment plant

PUROO® – the best small sewage treatment plant we have ever developed!

The PUROO^® small sewage treatment plants are particularly energy-saving, as our engineers have managed that the wastewater must be pumped out less often than with comparable small wastewater treatment plants. In addition, we have completely avoided noisy and unreliable magnetic valves. This makes the patented PUROO^® treatment process even safer and one of the most energy-saving systems ever. We work with energy-saving compressors. Therefore, there are no pumps or rotating electrical parts in the tank, i.e. in the wastewater.

The PUROO^® SBR small sewage treatment plant also handles extreme wastewater loads.

Whether 200% overload, a strong underload of only 25% or wastewater inflow only on weekends: PUROO^® proves every day that a safe wastewater treatment is possible, even in case of strong load fluctuations.

With the PUROO^® -COMPLETE option, you even have additional advantages: No fouling processes and even less odour annoyance.

Of course, all PUROO^® sewage treatment plants also have all necessary approvals according to DIN-EN 12566-3 and have the DiBt approval.

The PUROO® benefits

Easy handling

Both installation and operation are very simple and easy

No magnetic valve

A robust ball float, specially developed by ATB, controls the air flow directly, without electrical energy – purely physical.

Low electricity costs

Due to process optimization only approx. 30 kWh per connected resident and year.

Low maintenance and repair costs

Few individual and wearing parts; therefore manageable costs.

Very high cleaning performance

Self-adjusting system in cases of underload or high inlet peaks

Award

Greentec Award 2014

The idea for the PUROO® small wastewater treatment plant

"Small sewage treatment plants are too complicated!"

In recent years, small sewage treatment plants have become more and more complicated. Many developments in the industry have only taken place because they were technically possible - but not because they were required by the customer.

The controls have been given more and more functions. There are even more sensors that can fail or cause malfunctions. A standard SBR small wastewater treatment plant usually still has 4 unreliable, loud magnetic valves or stepper motors. Some companies even offer to equip the small sewage treatment plant with an Internet connection to monitor it.

The result is that the operation, maintenance and repair of the plants have become increasingly complicated in recent years.

With the PUROO ^®small sewage treatment plant by ATB WATER, we have found a solution to make small sewage treatment plants simple and safe again...

PUROO® − The characteristics

„PUROO® is easy“

One air lift only - less parts to install.
Only one air hose - The connection between the control/blower and the system is easier.
No magnetic valve, but a robust ball-type float, specially developed by ATB, controls the air flow directly, without electrical energy: purely by physics.
Simple operation of the control, as the system has only a few functions.
The sampling option is already integrated.

„PUROO® is economic“

PUROO^® saves energy. The water is only pumped once. Conventional SBR treatment plants pump the water twice.

Because the water is pumped once, the blower has to work less than in conventional SBR sewage treatment plants; this increases the service life of the blower.

Electricity consumption is only around 30 kWh per PE per year.

Maintenance costs are low as no magnetic valves or pumps are used.

An example calculation:
With an electricity price of 0.30 €/kWh, a fixed-bed or mooving-bed small wastewater treatment plant for 4 PE (population equivalent) consumes a total of 150 kWh per inhabitant & year and thus causes costs of 180 € per year. If you operate a PUROO^® small wastewater treatment plant instead, you will save € 144 per year, i.e. € 1,440 in 10 years, not including expected electricity price increases.

„PUROO® is clean“

Whether with heavy underload or with inflow peaks: PUROO^® simply adapts to the situation.

The primary sedimentation and the SBR chamber are connected to each other. The resulting larger buffer ensures better cleaning performance with fluctuating loads. The retention time of the wastewater is considerably longer.

We always use at least 80 Watt blowers to ensure sufficient safety and extend the service life. - PUROO^® therefore always has sufficient power reserves.

PUROO^® safely complies with the strict French limits for filterable substances (AFS) of less than 30 mg/l.

The efficiency in regard to BOD5 is 97.9 % and in regard to COD 95.1 % (according to EN 12566-3, PIA, Aachen).

„PUROO® is safe“

No fault-sensitive magnetic valves.
No pumps in wastewater.

PUROO^® works according to the SBR process.
For more than 12 years, this has been the most commonly built system for small sewage treatment plants. Since PUROO^® works according to the real wastewater volume, even surprising inflow fluctuations are safely cleaned.

In addition to testing according to EN 12566-3, PUROO^® has also undergone additional overload and underload situations on an approved test field.

PUROO^® is delivered with the proven and matured control based on the APURIS^®.

The technology - "This is how PUROO® works.“

The untreated water flows via the pre-treatment (1) into the SBR tank (2).

In the SBR tank, intermittent aeration takes place until the mechanical ball-type float (3) activates the air lift (4) due to the higher water level. This activation leads to sludge recirculation in several short pump strokes.

This is followed by the settling phase. This allows the sludge to sink in the SBR tank.

The air lift is activated again and it now pumps the treated water out of the system (7).

A valve (6) integrated into the outlet distinguishes between short pump impulses(= excess sludge discharge) and long pumping operations (= clear water discharge).
At minimum water level, the air flow is switched back from the air lift to the pipe aerator (5). - The process starts again. The cycle is therefore not time-dependent but water level-dependent.

Puroo® - Complete – Sludge stabilisation included!

On the basis of our proven PUROO^® small sewage treatment plant, we have succeeded in developing an even more efficient plant. Like the PUROO^® plant, the PUROO^® Complete plant also works according to the activated sludge principle using the buffering process (SBR plant); the pollutants from the wastewater are absorbed by floating microorganisms (activated sludge) and converted into biomass.

The cleaning cycle is controlled by the water level, i.e. according to the real amount of wastewater.

With the PUROO^® Complete system for up to 16 PE, aeration takes place not only in the aeration tank but also in the primary clarifier – this offers additional advantages:

Less sludge removal – The added oxygen mineralizes the sewage sludge by breaking down carbon compounds. The sludge volume is reduced and sludge removal is only necessary later than in plants without aerated pre-treatment.
Nearly no odor nuisance and concrete corrosion – the formation of fouling gases and acids is
prevented by the oxygen supplied.
The system is suitable for new builds and retrofitting (without complicated conversions in the tank).

How our PUROO® Complete systems work

1 Automatic control

2 Membrane compressor

3 Air hose

4 Inflow

5 First treatment chamber

6 Partition wall with flow opening

7 Second treatment chamber

8 Pipe diffusor

9 Mechanical float valve

10 Air lift pump

11 Buffer tank with sampling

12 Clear water pipe

13 Outlet

PUROO® modular system

The ATB Modular system - Perfectly adapted and individual!

We have the right puzzle piece for your demands

Do you still have too much hose or a few compressors in stock? Never mind! Just compose the right sewage treatment plant for you. Also without hose or with a special compressor of your choice.

We have arranged a PUROO ^® modular system with which you can create both, the PUROO^® M for partition wall installation, as also the PUROO^® Z for fixing in empty tanks, all from 1-16 PE individually designed for our application. Or also both versions as PUROO^® Complete with an aerated primary tank.

Furthermore, there is an even more comprehensive AQUAMAX^® modular system available from 1-75 PE, with the possibility of arranging the CLASSIC-, as well as the PRO G version with pressure aeration. In the PUROO^® and the AQUAMAX^® modular system, more than 1,000 different combinations of all components are available to you. Simply choose the right core system package for your application and add the necessary control, the corresponding aeration components and the additional accessories. All core packages are marked with a serial number as usual.

AQUAMAX® & PUROO® modular system PLUS+

Individual extension options for your wastewater treatment plant

Combine existing or new wastewater treatment systems PUROO^® from 1-16 p.e. or AQUAMAX® from 1-75 p.e. with hygienization, phosphate precipitation and/or remote data transmission and treat your wastewater to the maximum purification level. With our PLUS+ modular system almost all combinations of extended wastewater treatment are possible.

By post-treatment of the effluent water with UV light, residual bacteria and germs in the treated wastewater will almost completely be killed.

With support of chemical or electrolytic precipitation, the phosphate contained in the wastewater can be reduced to a minimum and even limit values of P_ges < 1 mg/l can be complied.

An uncomplicated possibility for the control of the sewage treatment plant operations as well as to avoid deficits – especially on self-monitoring by the operator – is the use of remote data transmission.

Expand functionality, increase comfort, protect the environment even more!

UV-hygienization (+H)

By treating the discharged water with UV light, any remaining bacteria and germs in the treated wastewater are almost completely destroyed, allowing it to be reused, e.g. for watering the garden.

Phosphate precipitation (+P)

With the help of chemical or electrolytic precipitation, the phosphate contained in the wastewater can be reduced to a minimum and even limit values of Pges < 1 mg/l can be adhered to.