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Mall environmental systems for protecting water and soil Company profile and products

Mall – the specialists in rainwater, wastewater and renewable energies Over five decades, the Mall Group has become one of the most important specialist providers, with process-engineering expertise for small wastewater treatment For many years, Mall GmbH has purchased NaturEnergie Silber electricity for all its production sites in Germany. With the purchase of around 1,517 megawatt hours of clean electricity every year, Mall avoids emitting around 822 tonnes of harmful carbon dioxide, and in so doing also makes a contribution to environmental protection in this field. plants, separators...

Company profile and products 2 Surface water treatment 12 Wash water recycling 15 Wastewater treatment plants 16 Large-scale woodchip Company profile and products 3

High performances thanks to process-engineering expertise and modern concrete technology All our employees are involved in environmental technology and committees and specialist bodies and specialists in the areas of water such as the Association for Rainwater and wastewater work hand-in-hand Harvesting and Water Utilisation with civil engineers and concrete (Fachvereinigung Betriebs- und specialists. Working as a team, we Regenwassernutzung e.V., fbr) and develop new solutions to problems the NAW V4 Water Practice Stan- and are involved in projects from dards Committee. The overlapping...

There is no better construction material Concrete, the ultimate building material, is actually nothing more than a mixture of the naturally available materials sand, gravel or grit, together with cement and water. Cement, the binding substance, is itself simply ground and fired limestone, marl and clay. Concrete is now synonymous with our built living environment and with construction in general. Concrete is innocuous for animals, plants, water and the soil, has an extremely long service life, and can be subjected to high static loads. The properties of concrete can also be modified to...

Proven units and systems for rainwater use Rainwater use has become an established element in building services for houses, especially since the publication of the DIN 1989 series of standards, parts 1 to 4. The fact that groundwater reserves are permanently under threat and that sewage treatment plants and sewage systems can’t keep up with precipitation levels has lead to increased recognition of the importance of rainwater management. Experience and expertise you can depend on As early as 1979, we began carrying out pioneering environmental and commercial work with the monolithic Mall...

Rainwater use for engineering, commercial and industrial premises Commercial and industrial companies generally have large water needs and large roof surfaces too. If this is the case, the prerequisites are in place to use rainwater in the company. Wide range of applications for rainwater Alongside use in production, rainwater can also be used as service water in other areas. This leads to significant savings on drinking water and wastewater rates, which are rising all the time. This is particularly true where additional precipitation charges are applied based on the amount of paved or...

Use, percolation and retention of rainwater Mall Reto rainwater storage tank Rainwater tanks not only store water for use, they also retain rainwater which would otherwise burden the sewage system with undesirable peak volumes. Not enough attention is generally paid to this retention effect in private use. This behaviour is altered Mall Terra rainwater storage tank (patented) With Mall Terra rainwater storage tank, the combined usage and percolation of water is not only easy, but also attractive, as this system is equipped with an integrated biological soil zone. In most cases, the system...

Treatment of rainwater An additional containment area is provided for light liquids if accidents occur. Mall sedimentation units They consist of a reinforced-concrete container, a central pipe and a guide baffle in the inlet. The incoming water is directed by the guide baffle to form a circular stream which flows tangentially to the container; a rotating body of water forms in the annular gap between the container’s outer wall and the central pipe. Coarse dirt particles and any heavy metal ions settle at the bottom. Light, floating substances are retained in the upper area. Technical data...

Separation technology is an ecological imperative Rainwater and wastewater that have For this reason, rainwater and waste- been contaminated by light mineral water that could be contaminated liquids such as motor vehicle fuels, with pollutants must pass through diesel, heating oils or filter oils must separators before being discharged. not be allowed to seep into the Commercial wastewater containing groundwater or be discharged into animal or vegetable fats and oils must the sewage system or other bodies also be pre-treated before being of water. The discharge of lubricants discharged into...

NEUTRA separation technology for light mineral liquids NEUTRA oil, coalescence and gasoline separators (classes I and II) These separation systems are used in all applications where light mineral liquids are filled or may escape during the operation, servicing and repair of engines. They consist of the following functional areas: sludge trap, petrol separator, coalescence separator and Sample-removal facility. Process technology Depending on requirements, the functional components are housed in one or several structures made of seamless reinforced concrete. Solid particles such as sand and...

Systems for surface water treatment – indispensable An area equivalent to that of 130 The possible consequences include football pitches is paved and sealed overloading of wastewater systems every day in Germany – for example, and a build-up of suspended matter for the construction of commercial in receiving bodies of water. premises, industrial buildings and traffic facilities such as roads, car parks and depots. The rainwater run-off from these areas can pose problems because of their quantity and contents. 12 Surface water treatment For this reason, systems for retaining and treating...