German national technical approval for NeutraClear Z-83.4-6

Efficient and environmentally friendly system for the treatment of polluted washing water

Recycling of washing water Recycling of washing water eases the burden on the environment and lowers operating costs

Even in Germany, where water is The treatment of washing water

plentiful, the conditions for saving not only eases the burden on the

drinking water reserves should be environment. It also helps to lower

designed with the requirements of the operating costs significantly.

the future in mind, ensuring that the The circulation water treatment

same standard can be maintained system provided by Mall functions

for future generations. Annex 49 of without chemical additives.

the German Wastewater Ordinance The costs of drinking and wastewater

gives an example. It contains, among are significantly reduced.

other requirements, a stipulation for

recycling washing water.

2 NeutraClear Environmentally friendly operation on a mechanical-biological basis – NeutraClear

The mechanical-biological Additional savings possible through treatment process the use of rainwater The polluted washing water flows Due to the use of rainwater for rinsing towards the pre-treatment basin. the vehicles, or to offset evaporation Heavier and floating materials are and other water losses, a high level retained there. The pre-treated washing of drinking water costs and fees for water flows further into the treatment surface sealing can be saved. basin. During this process, it flows through the filter made of gravel and Areas of application lava sludge. Microorganisms . Portal car wash facilities colonise the filter grains in a natural . Wash facilities for commercial way. A biofilm is created by means vehicles of which the organic substances are . Continuous car wash facilities biologically degraded. In the counter- current, air bubbles are guided through Our company stands for quality and the filter bed by a compressor. These expertise air bubbles supply the biology with Many years of experience, continuing oxygen, and dirt particles are floated development and innovative products upwards and fed to the pre-treatment distinguish us as specialists in the field Top: Installation of a NeutraClear basin via the sludge extraction funnel. of water separation and treatment system below ground level The treated washing water flows into technology. We also have a sales, Below: Side-channel compressor the storage basin for service water installation and service network with controller and is available for further use. which covers the whole of Germany.

Exceptional cost-effectiveness Annex 49 The treatment basins are pre-mounted This part of the German Wastewater in the factory ready for connection, and Ordinance deals with wastewater con- only need to be tubed together on site, taining mineral oil. One of the essential leading to a significant reduction in legal requirements is to use a high pro- construction time. Due to the installa- portion of recycling of water from auto- tion of the circulation water treatment matic car wash facilities without caus- system in the ground, the amount of ing an additional burden through the space required in the equipment room treatment. for further equipment can be kept to a minimum. Thanks to the fact that no operating materials are required, and the treatment process is not controlled via pumps and valves, the level of self- monitoring and maintenance work is very low. The operating costs of the cir- culation water treatment system are low and the amortisation period is accordingly shorter.

NeutraClear 3 NeutraClear – individual planning, service and installation

Design and flow path The advantages The system consists of the optimized . Very low maintenance and reliable pre-treatment basin, which retains operation floating particles and settleable solids, . No chemical additives required the biological cleaning stage with . No odor nuisance adsorption filter and finally the counter . Saves space, because all treatment flow ventilation and service water basins are installed underground storage basin. All components are . Reduction of surfactants and designed to match each other and are phosphates operated as a flow-through system. . Decomposition of CSB and BSB The washing water will flow by gravity . Simple control system through the entire system, ending with . Open-air functionality the discharge of the excess water into . DIBT construction type approval the sewer system. As an option it is Z-83.4-6 possible to replenish evaporation and . Compatible with all wash facilities incidental losses with rain water or which use service water fresh water. . Aerated storage basin for service water . No separator system required . Only notifiable . Clear interface definition

4 NeutraClear NeutraClear circulation water treatment system

Options . Vertical rotary pump . Storage basin for service The pump transports the service and/or rainwater water from the above-ground storage Installation of an above-ground stor- basin for service water to the vehicle age basin for service and/or rainwa- wash facility at the corresponding ter in the equipment room with drink- delivery rate and delivery height. ing water connection in accordance . Booster station with DIN 1988, the corresponding The system supplies one or more pump and control unit for feeding. consumers (water taps, high pres- . Conductivity measurement sure cleaning devices etc.) with ser- The service water is measured at vice or rainwater at the correspond- any point in time and regulated ing delivery rate and delivery height. accordingly in order to avoid . Sludge dewatering increased salinisation. The sludge which collects in the . Compensation for evaporation and pre-treatment basin can be pumped other water losses with rainwater either automatically or manually When service water levels are too as required into the dewatering low, collected rainwater is pumped container provided for the purpose. from the rainwater storage tank into This saves disposal costs and the underground storage basin for regular sludge layer thickness service water. measurements.

Flow chart, circulation water treatment system

NeutraClear circulation water treatment system with above-ground storage basin for service and rainwater, Water meter provided by the customer W conductivity measurement, water meter and booster Drinking water Water tap, M high pressure cleaning device Emergency overflow

LF D Control unit Emergency

overflow W M Storage basin for rainwater Rinse water Washing water Storage basin for service water

Vehicle wash facility Control unit

NEUTRAcheck Rainwater tank sample-removal manhole NEUTRAtwin NEUTRAclear NEUTRAsam Excess water pre-treatment basin treatment basin underground storage basin for service water

NeutraClear 5 Technical data – NeutraClear

NeutraClear

Plant type Interior Flow rate Control box Connected diameter capacity 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 bis 32,00 1320 · 640 · 1100 2 · 2.0 kW; 400V C 4000 4000 bis 46,00 2030 · 840 · 1250 2 – 3.0 kW; 400 V

NeutraClear circulation water treatment system

Car wash facilities

Excess water Control unit according to appendix 49 from the storage basin for service water

NeutraCheck Option: sample-taking with rainwater use manhole

Pre-treatment NeutraClear NeutraSam basin treatment basin intermediate NeutraTwin storage basin

6 NeutraClear Project reports – Public Transport Authority, Regensburg, Germany

The initial situation water from the workshop and The existing bus washing facility with prewash is treated with a Class I and II its service water treatment system NeutraMax separator plant to was beyond refurbishment. Because EN 858 / DIN 1999-100, with an of the very calciferous fresh water, it integrated NS 10-2500 sludge trap. was also decided to utilise the roof surfaces and use the water effectively Advantages for the last rinsing cycle. The Regens- . Prefabricated concrete elements in B 55 burg Public Transport Authority (RVV) . Cost savings due to short construction owns 70 buses and uses another time 297 buses from external companies, . Guaranteed impermeability which have to be regularly washed. . Still no fresh water required after one year Client . Optimum washing results, above all with Regensburg Public The solution the windscreens (no calcium residues) Transport Authority (RVV) The rainwater run-off on the approxi- . The colours of the buses have been more mately 1000 m2 roof surface is dis- bright since, according to the owner Design charged via a filter shaft into a large, . General technical approval Ing. Büro Scholz, 66 m³ tank. The water is then pumped Regensburg, Germany from there to a pre-treatment tank. The rainwater is used on the one hand Year of construction for rinsing and on the other hand for 2005 reducing the conductivity in winter when the salt content of the service Products water is too high. The service water is Filter shaft S 2500, treated with a NeutraClear C2000 cir- large, 66 m³ tank, culation water treatment plant that has pump equipment, national technical approval. The waste- NeutraClear circulation water treatment plant C2000

NeutraClear C2000 circulation water treatment plant Aerated concrete shaft cover with dirt trap

2 1 3 4+5 2ARV60 1020 1020 1070 1125 1145 1105 1245 1245 1265 1215 Pre-treatment 320 Storage basin 3045 2795 basin 3395 for service water 1580 1550 2225 1530 1975 1940 1920 2375 2375 2250 NeutraTwin 2150 NeutraSam ø1500 ø1800 8,700 l Ø2500 2,500 l Ø2740 Ø2000 Ø2240

2 Zulauf 1 Ablauf DN 150 DN 150 DN 150 DN 150

3 5 DN 150 DN 150 4 Entnahmeleitung DN 150 DN 150 DN 150 DN 150

Gebläse

NeutraClear 7 References

Mall sets quality standards. Mall has additional subsidiaries in And has been doing so for decades. Switzerland, France, Poland and With its extensive range of environ- Hungary. mental and climate protection pro- ducts, the Mall group has become one Our core areas of competence of the most important specialist . Rainwater management . e

providers over the last five decades, . Separators c i t o

offering process-engineering expertise . Recycling of washing water n t u

in the fields of separation technology, . Wastewater treatment plants o h t i

rainwater management, wastewater . New energies w s n o treatment, new energies and pump . Manhole and container construction i t a c i

and plant engineering. Pump and plant engineering f

. i d With continuous dialogue and exper- . Grey water utilisation o m l a

tise transfer, we have combined con- c i n h

crete technology and environmental Services c e t o

processes to create integrated solu- . Consultation t t c e

tions and systems. . Project planning j b u

Mall is one of the market leaders in . Installation drawings S 6 1

rainwater and separation technology . Installation with leak test / 5 and, with 5 production facilities, has . Maintenance and service 0 O W

a Germany-wide presence in the 4 0 3

construction material trade. See www.mall.info for project reports. 0 - O F

Further references

ALDI-Logistikzentrum 78166 Lorry wash facility AVIA Tankstelle 71272 Renningen Car portal wash facility Autohaus Russ 72622 Nürtingen Car portal wash facility Waschzentrum Donau 78053 Villingen-Schwenningen Carwash Albrecht + Grimm 04179 Leipzig Carwash Spedition Dachser 90475 Nürnberg Lorry wash facility Spedition Winterhalter 79524 Oberried Lorry and bus wash facility HZL Ringzug 78194 Train wash facility FIZ BMW 80788 München Car portal wash facility Waschpark Auer 78333 Stockach Carwash Waschpark Auer 88213 Ravensburg Carwash Waschwerk 78532 Carwash

Mall GmbH Mall GmbH Mall GmbH Mall GmbH Mall GmbH Hüfinger Straße 39-45 Grünweg 3 Industriestraße 2 Roßlauer Straße 70 Oststraße 7 78166 Donaueschingen 77716 Haslach i. K. 76275 Ettlingen 06869 Coswig (Anhalt) 48301 Nottuln Phone +49 771 8005-0 Phone +49 7832 9757-0 Phone +49 7243 5923-0 Phone +49 34903 500-0 Phone +49 2502 22890-0 Fax +49 771 8005-100 Fax +49 7832 9757-290 Fax +49 7243 5923-500 Fax +49 34903 500-600 Fax +49 2502 22890-800

[email protected] · www.mall.info