Environmental engineering at PORR

For a green future

From gutting and deconstruction through to the environmental sorting and disposal of materials. For years, PORR Umwelttechnik and Prajo & Co have been reliable partners for technically sophisticated projects requiring innovative deconstruction concepts. For everything from power plants and football stadiums to industrial halls or residential complexes. PORR provides complete solutions from planning through to disposal.

The removal and disposal of loosely bound asbestos, e.g. sprayed asbestos or other pollutants, call for special measures to protect people and the environment. Our employees are certified to TRGS 519 and 521 as well as DGUV-R 101-400 in the area of clean-up and demolition and have all the knowledge required to properly remediate hazardous construction materials.

In its specialist area of securing and remediating contaminated sites, PORR Umwelttechnik can look back on decades of experience and expertise in planning and executing projects at home and abroad. This makes us the ideal partner when you require knowhow in dealing with old landfills or contaminated sites. Our services cover everything from investigating the contaminated site, producing a remediation concept, submitting it to the authorities and carrying out all of the works to secure and remediate the site, right through transporting and treating the waste and contaminated materials.

Our department for the remediation of contaminated sites handles both public and private projects. Customers prize our specialist expertise, especially when it comes to combining multiple techniques and developing individual solutions. In addition to the proper disposal of asbestos, we also handle the decontamination of spaces contaminated with PAHs and PCBs, mercury, lead, arsenic, cadmium and other toxic substances. Furthermore, alongside the stabilisation and immobilisation of pollutants in soil and water, PORR offers solutions for containment measures such as sealing walls or water-retention systems.

PORR has decades of experience in carrying out industrial deconstruction and demolition works along with the accompanying removal of pollutants, which usually takes place in advance. The main focus in the area of pollutant clean-up is on asbestos removal. 

Now banned, carcinogenic asbestos was long considered a desirable construction material and can still be found in numerous buildings erected prior to the ban. Many of the affected buildings have now reached the end of their useful life. Before general renovation or demolition, these buildings need to be carefully decontaminated. The safety of our employees and protecting the environment are always the top priority when carrying out these works. High safety standards involving things like enclosures and the construction of negative pressure areas are stipulated for professional execution. In order to prevent any health risks, the people carrying out the remediation work must be properly qualified and equipped. Mandatory protective measures such as full body suits and respiratory protection come as standard.

PORR Umwelttechnik and its two subsidiaries, Koller Transporte-Gravel-Earthworks GmbH and Altlastensanierung und Abraumdeponie Langes Feld GmbH, operate various landfills for mineral waste. In Vienna, Lower Austria and Upper Austria, our specialists apply state-of-the-art landfill technology to store many different types of waste. 

The range covers everything from landfills for excavated soil and construction waste to those for residual and bulk waste. Our services include site selection, planning, construction, financing and operating landfills. For the treatment of municipal waste, PORR Umwelttechnik works closely with incineration plants in Austria. In Serbia, PORR operates two recycling centres with adjacent landfills. The sheer range of facilities we have available allows us to offer environmentally sound and legally compliant disposal in every type of landfill.

We use earthworks, i.e. construction measures in which the location, form and bearing quality of the soil is changed, to create the basis for every type of infrastructure project. 

The levelling and compacting of large areas is a key part of earthworks, as is the delivery of sand, gravel or topsoil and the disposal of extracted earth. As a subsidiary of PORR Umwelttechnik, Koller Transporte-Gravel-Earthworks GmbH is a specialist in all earthworks – regardless of whether it’s a small development or complex infrastructure project.

Koller Transporte-Gravel-Earthworks GmbH, a subsidiary of PORR Umwelttechnik GmbH, has been operating highly efficient gravel-washing plants since 2010 with a capacity of 300,000 tonnes per year. 

We produce practically every grain size from 0.063 mm to 63 mm. Our cutting-edge facility allows us to meet individual customer requirements. An optimised water management system means that up to 95% of the water used goes back into the cycle – without requiring any additives. This means that our production is not only highly economical but also as environmental as possible.