Processes


Big Savings on CO2 Emissions Thanks to Trenchless Installation

In the jacking process, pipes are pushed through the soil after a pilot drill. Since this installation method does not require opening a trench it is ideal for densely populated areas and also provides benefits for the environment: 376,734 tons of CO2 have been saved by choosing jacking over a traditional open-trench installation of a 5.7 km-long pipe section with a diameter of 3 m in Warsaw. This number equals the yearly emissions of 104,430 medium-sized cars.

 

Environmental Management with ISO 14001

Based on the international standard ISO 14001 for setting up and developing an environmental management system to continuously improve environmental performance, the HOBAS Group improves its eco-balance year by year. Cost- and energy-efficient management of raw materials
and production processes is a matter of course for us, as is minimizing resource use and any impact on the environment. The ISO 14001 standard is implemented in all HOBAS Factories and compliance is monitored and proved by TÜV audits.



Eco-friendly purchasing

At POLOPLAST we always aim to use packaging materials as economically as possible and choose reusable containers where viable (see photo). When buying new machines, we compare the energy efficiency and emissions of the models in question and evaluate them. Before using any raw materials, we always check that they are safe in terms of impact on our people and the environment. These consistent efforts led to all the procedures in place and to be followed being gathered together in corporate guidelines for environmentally friendly purchasing at Poloplast.

 

Conserving the environment with effective research and development

POLOPLAST is dedicated to close cooperation with universities and colleges of technology. This is not only aimed at improving the processes and technologies used in producing plastic pipes and fittings with regard to the power required, but also at developing processes enabling alternative raw materials to be used. It enables us to reduce the fossil fuels used for raw materials to a minimum and produce multi-layer plastic pipes with a wide range of properties and different material compositions in each layer. Balancing the
reinforcing agents in them and making use of their properties for specific applications allows us to manufacture pipe systems that meet the highest demands and minimise fossil fuel use. It was our commitment to the environment that helped us to comply with the stringent requirements in gaining the ecolabel for various pipe systems. In addition, the production plant in Leonding undergoes strict auditing for certification under the chemical industry’s Responsible Care program every three years on a voluntary basis.

POLOPLAST > Sustainability


Reducing noise emissions from the plant

w&p Zement attaches great importance to achieving long-term environmental goals. The Wietersdorf facility has thus been working continuously since 1999 on reducing its noise emissions, retrofitting for example 11 silencers in the ready-mixed mortar plant and installing a new jacket cooling system with silencer on the rotary furnace. A noise barrier erected at the plant entrance is aimed at keeping the disturbance down to a minimum for local residents. All these measures have led to a sustainable improvement in quality of life around the Wietersdorf industrial site.

w&p Zement > Sustainability



Water management at the south quarry, reduction in sludge

The Peggau plant constantly strives to improve its eco-balance. In the production process for high-quality building materials, it is essential to use stone fractions without any contaminants. We therefore have a stone washing plant where fine fractions (sludge) are left as a waste product. To make use of the residue, we developed a concept for removing the water from the sludge, which we implemented in 2010-2012. The main components of the wastewater treatment plant are the lamella clarifier, which separates the solids (clay and limestone grit) from the stream on plate settlers covering an area of 300 sq m, and the filter press, which further dewaters the concentrated sludge from the lamella clarifier (approx. 75% residual moisture) down to about 20% residual moisture content. With this system up to 7,000 cu m water can be treated daily and up to 250 t sludge dewatered. After the process, all the 0/4 mm sand fraction can be used as aggregate in producing construction materials or filler in concrete.