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The choice of wastewater treatment method is a complex process that depends on several factors. The applied solution should be friendly – both for the environment and the users. Discover the innovative BIOFIT technology and find out why it is the right choice.  

Types of wastewater treatment plants

The importance of wastewater treatment is one of the most significant, and at the same time most often overlooked, aspects of environmental planning. Wastewater poses a threat not only to the environment but also to people. Pollutants can contribute to the deterioration of surface water and groundwater and are a source of unpleasant odours and toxic substances.

The task of the treatment plant is to decompose the collected pollutants into mineral compounds – in this form they will not pose a threat to the environment.

The two most common types of domestic treatment plants can be divided into:

  • drainage treatment plants
  • biological treatment plants

How does each of these solutions work?

Biological or drainage treatment plant – which one to choose?

Drainage plants are based on the two-stage wastewater treatment method. Treatment takes place in the settling tank of the wastewater treatment plant, and in the medium in which the drain distributes the wastewater – this may be soil, sand and gravel filter or reed bed. The water treated in this way poses no threat to the environment, but cannot be reused.

Biological treatment plants, on the other hand, are a more recent method of wastewater management. Its main advantage is a higher degree of treatment than the drainage method. The system is based on mechanical and biological treatment. The biomass used in the process can be in the form of activated sludge or a biological bed.

Biological or drainage treatment plant

Construction of treatment plant, retention tank and pumping station for S3 expressway MOP Polkowice

BIOFIT wastewater treatment plant – construction

One of the types of treatment plants offering biological treatment is the BIOFIT system. The device has been designed in compliance with the ATV-A135-P standard relating to the dimensioning of sprinklered and submerged sumps.

The BIOFIT treatment plant consists of four basic components:

  • preliminary settling tank
  • submerged fixed-bed bioreactor
  • clarifying chamber
  • installation chamber

All components of the treatment plant are made of high grade C35/45 concrete and additional materials. Apart from the basic elements of the tank, the set includes also blowers of the aeration system together with a control cabinet.

How does the BIOFIT the treatment process work?

How is wastewater treated using BIOFIT technology? An aerated biological bed populated with micro-organisms is used to break down pollutants.

The wastewater first enters the preliminary settling chamber, where pollutants not dissolved in water are separated.

The treated wastewater is transported to the bioreactor. There is a submerged biological bed inside. The biomass growing in the bed uses the substances dissolved in the sewage as food. Air is pumped into the bioreactor with the aid of diffusers, which guarantees the optimal course of microbiological processes.

The next stage is the clarifying chamber. Here the excess sludge is removed from the treated wastewater. All the sludge is pumped from the secondary settling tank into the primary tank. In this way, it is sufficient to remove it from a single settling tank.

The treated effluent from the secondary settling tank goes to the receiving tank. Thanks to the use of blowers and air lift pumps, the moving and mechanical parts of the treatment plant are not in direct contact with the pollutants. The installation well remains dry and has no contact with wastewater.

Why choose a BIOFIT wastewater treatment plant?

What are the advantages of biological wastewater treatment with BIOFIT? The system itself features a modular design, which makes it easy to adapt the treatment plant to the conditions offered by the environment. The devices can support, among others, residents of small towns, housing estates or buildings remote from the sanitary infrastructure. The plant can also be used for service and road facilities (e.g. petrol stations, traveller service areas). Thanks to the use of prefabricated elements, the BIOFIT WWTP can be built and commissioned within a short period of time from ordering.

Another advantage is the ease of operation and maintenance of the plant components. Thanks to the use of blowers and air lift pumps, the moving and mechanical parts of the treatment plant are not in direct contact with the pollutants. This solution makes it possible to dispense with the use of submersible pumps, which are potentially exposed to impeller clogging. This innovative technology not only improves the efficiency of the plant, but also reduces maintenance expenses.

The gravitational flow of wastewater in the treatment plant also contributes to reducing the operating costs of BIOFIT units. Thanks to this, the treatment plant consumes less energy than when using traditional pumps. The solution also ensures even flow of wastewater in the device.

BIOFIT treatment plants – operation

Does the BIOFIT wastewater treatment plant require constant maintenance during operation? You can additionally equip the kit with management software, which is able to report on the operation.

The BUMERANG system fitted with special oxygen probes and a sludge level sensor reports on blower run time, oxygen concentration and sludge level in the settling tank.

BIOFIT sewage treatment plants does not require constant supervision. Regular equipment inspection and sludge removal (1 to 5 times per year) should ensure high efficiency and failure-free operation of the system.