Efficient and environmentally friendly system for the treatment of polluted washing water
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Efficient and environmentally friendly system for the treatment of polluted washing water German national technical approval for NEUTRAclear Z-83.4-6 Recycling of washing water

The treatment of washing water not only eases the burden on the environment. It also helps to lower the operating costs significantly. The circulation water treatment system provided by Mall functions without chemical additives. The costs of drinking and wastewater are significantly reduced. Even in Germany, where water is plentiful, the conditions for saving drinking water reserves should be designed with the requirements of the future in mind, ensuring that the same standard can be maintained for future generations. Annex 49 of the German Wastewater Ordinance gives an example. It...

The mechanical-biological treatment process The polluted washing water flows towards the pre-treatment basin. Heavier and floating materials are retained there. The pre-treated washing water flows further into the treatment basin. During this process, it flows through the filter made of gravel and lava sludge. Microorganisms colonise the filter grains in a natural way. A biofilm is created by means of which the organic substances are biologically degraded. In the countercurrent, air bubbles are guided through the filter bed by a compressor. These air bubbles supply the biology with oxygen,...

NEUTRAclear – individual planning, service and installation Design and flow path The system consists of the optimized pre-treatment basin, which retains floating particles and settleable solids, the biological cleaning stage with adsorption filter and finally the counter flow ventilation and service water storage basin. All components are designed to match each other and are operated as a flow-through system. The washing water will flow by gravity through the entire system, ending with the discharge of the excess water into the sewer system. As an option it is possible to replenish...

M W D M LF W Control unit Emergency overflow Washing water Storage basin for service water Rinse water Vehicle wash facility NEUTRAtwin pre-treatment basin NEUTRAclear treatment basin NEUTRAsam underground storage basin for service water NEUTRAcheck sample-removal manhole Excess water Rainwater tank Storage basin for rainwater Water meter provided by the customer Drinking water Emergency overflow Water tap, high pressure cleaning device Control unit NEUTRAclear circulation water treatment system with above-ground storage basin for service and rainwater, conductivity measurement, water meter...

Technical data – NEUTRAclear Excess water according to appendix 49 from the storage basin for service water NEUTRAclear treatment basin NEUTRAsam intermediate storage basin NEUTRAcheck sample-taking manhole Pre-treatment basin NEUTRAtwin Control unit Option: with rainwater use Car wash facilities NEUTRAclear Plant type Interior Flow rate Control box Connected diameter leistung Dimensions l · d · h electrical load mm m3/h mm C 1500 1500 bis 6,00 810 · 640 · 1100 0,75 kW; 400 V C 2000 2000 bis 11,00 810 · 640 · 1100 1,1 kW; 400V C 2500 2500 bis 17,00 810 · 640 · 1100 2,0 kW; 400V C 3000 3000...

The initial situation The existing bus washing facility with its service water treatment system was beyond refurbishment. Because of the very calciferous fresh water, it was also decided to utilise the roof surfaces and use the water effectively for the last rinsing cycle. The Regensburg Public Transport Authority (RVV) owns 70 buses and uses another 297 buses from external companies, which have to be regularly washed. The solution The rainwater run-off on the approximately 1000 m2 roof surface is discharged via a filter shaft into a large, 66 m³ tank. The water is then pumped from there to...

References Mall has additional subsidiaries in Switzerland, France, Poland and Hungary. Our core areas of competence n Rainwater management n Separators n Recycling of washing water n Wastewater treatment plants n New energies n Manhole and container construction n Pump and plant engineering n Grey water utilisation Services . Consultation . Project planning . Installation drawings . Installation with leak test . Maintenance and service See www.mall.info for project reports. Mall sets quality standards. And has been doing so for decades. With its extensive range of environmental and climate...