NEUTRApass
16Pages

NEUTRA separators for light mineral liquids to EN 858 and DIN 1999 Separation technology

2 Separation technology NEUTRA separators have been tested to EN 858 and DIN 1999. They meet the requirements of class I (KW < 5 mg/l) or class II (KW < 100 mg/l), respectively. High quality materials and practical designs facilitate the monitoring, servicing and emptying of NEUTRA separator systems. The nationally applicable Annex 49 (wastewater containing mineral oil) of the German Waste Water Ordinance defines the types of operators and installations that must have a separator system. The most important parameter to be maintained is a hydrocarbon limit below 20 mg/l. This requirement is...

Separation technology 3 . NEUTRA class I coalescence separator for the physical separation of fluids through coalescence . NEUTRA sampling shafts for monitoring and maintenance . NEUTRAstop warning device Compact systems in one unit or separate units NEUTRA separator systems allow every operator to define their own particular combination depending on the type and degree of contamination of the water to be treated – either as individually selected components for a special purpose or in compact form in a single structure. If desired, a PE inliner can be chosen instead of the normal...

4 Separation technology Product information Easy installation and assembly NEUTRA separator systems are fitted with transport hooks, making it very easy to lift the units into place with slinging and lifting gear. If the subsoil is of load bearing capacity, it is usually sufficient to just place the normal layer of sand. A foundation slab is usually not required. Pipes can be connected quickly and securely to the inlet and outlet, due to the mineral oil resistant, flexible and permanently sealed connectors for plastic pipes. The installation of separator systems is basically governed by the...

Separation technology 5 The quality-controlled prefabricated containers are made of jointless C35/45 reinforced concrete according to DIN 4281 and DIN 1045, are strengthened for break resistance and have type-tested static loading. The settling materials contained in the waste water settle in the sludge trap because they are denser than the water. Pretreatment The effectiveness of the sedimentation process depends on the surface of the sludge trap, the flow velocity of the wastewater, the distance of travel between the inlet and outlet and the volume. The maximum permitted thickness of the...

6 Separation technology In gasoline separators, the light and floating pollutants, such as fuels, engine oils etc., rise to the water surface. The separating effect is significantly affected by the density of the light mineral liquids, the wastewater temperature and quantity as well as the contents of processing aids and cleansing agents. Comparing pre-separators and gasoline separators In contrast to the gasoline separator, the pre-separator has no self-closing mechanism. The self-closing mechanism fitted in gasoline separators is a safety device. The float sensor has been adjusted to the...

Separation technology 7 In contrast to a gasoline separator, which separates the light liquids contained in the wastewater just by gravity, the coalescence separator employs an additional physical process – the coalescence effect. Optimised separation effect through the use of coalescence Coalescence is the confluence of smallest light liquid droplets to form larger drops. The coalescence device inside the separator encourages this form of fine separation. It causes the (remaining) oils that need to be separated – after reaching a certain drop size – to rise to the water surface in the...

8 Separation technology NEUTRAcom is a coalescence separator system combining the functions for sludge trapping, coalescence filtering and sample taking in one single chamber. Compact and easy to check At the inlet, the wastewater is guided into the large and well accessible sludge trap. The inlet port consists of noncombustible material and serves for guiding the water as well as an odour trap. Dirt particles and coarse material will settle here due to their greater density, while oils and other light fluids flow through the coalescence separator, rise to the water surface and form a...

Separation technology 9 NEUTRAprim combines a coalescence separator tested to EN 858, class I, a sludge trap and a selfclosing mechanism at the inlet in a single separator system. Setting new standards in hydrodynamic coalescence The degree of efficiency of the integrated separator is a common element in all separator systems and this must conform to the outlet values defined in the test requirements of the EN 858 standard. This is implemented by Mall via a hydrodynamic device at the inlet that uses focused creation of turbulence to provide the kinetic energy necessary to overcome the...

10 Separation technology NEUTRApro is a separator combing a sludge trap, a gasoline separator tested to EN 858-1, class II, a coalescence separator tested to EN 858-1, class I, and a sampling chamber in a single structure. High oil storage capacity Depending on the nominal size of the separator system the oil storage capacity ranges from 500 l to 1,691 l – a storage capacity that satisfies especially the requirements for approval and installation at petrol stations and fuel filling stations. Easy sampling and maintenance The clearly laid out structure and the easily accessible inner...

NEUTRApass bypass system When draining parking and storage areas, the wastewater must not be discharged untreated into the sewage system. To protect our waterways, legislation exists compelling operators to install treatment systems for water that is slightly contaminated with dirt and light mineral liquids. With rainfall, only the first large surge of water is heavily contaminated with pollutants because this rinses the contaminants from the surface. Modern bypass systems make use of this effect: For cost-efficient drainage, only the “first flush” is treated in the separator and the main...