Pump and dosing technology for modern wastewater treatment plants

Modern wastewater treatment plants are under increasing pressure: fourth-stage treatment, stricter limit values, and higher requirements for operational reliability and cost-effectiveness. The Lutz Group supplies coordinated pump, dosing, disinfection and control technology for key process steps, from the inlet through to effluent monitoring.

System solutions from the Lutz Group for modern wastewater treatment plants with four purification stages

Phosphorus elimination in wastewater treatment plants – high-precision MEMDOS Smart dosing pumps

Phosphorus elimination is a key task for every municipal wastewater treatment plant. With the stepper-motor diaphragm dosing technology of the MEMDOS Smart range from Lutz-Jesco, plant operators can dose aluminium sulphate or iron(III) chloride directly into the aeration tank with a repeatability of ±1%. This optimises chemical consumption, ensures reliable compliance with limit values and turns phosphate precipitation into a stable process.

Repeatability of +/- 1 per cent thanks to modern stepper-motor diaphragm dosing technology
Optimised chemical consumption thanks to automatic adjustment to the wastewater flow
Eight performance levels between 2.6 l/h and 182 l/h, suitable for every plant size
Versions in PP, PVC, PVDF and stainless steel for continuous operation in harsh environments

Two pumps with red and black housing, digital control visible.

Safe dosing of aggressive chemicals in wastewater treatment plants – MAGDOS dosing pump

When dosing highly aggressive chemicals, leak-tightness and material resistance are crucial. MAGDOS dosing pumps from Lutz-Jesco fully separate the drive from the pump medium. The media come into contact only with highly resistant plastics, meaning that corrosion is ruled out. They are used for odour elimination at external pumping stations, in aeration and compressed-air descaling, in phosphate precipitation in the aeration tank, and for FeCl₃ dosing in sludge dewatering.

The magnetic drive with double ball valves ensures high dosing accuracy
The dosing head is available in PVDF, PP, PVC or stainless steel; the diaphragm is made of PTFE
Broad output range from 0.36 to 15 l/h
The compact design is also suitable for smaller dosing systems
Manual, external or 0/4 to 20 mA control, optionally with Ethernet

Wastewater treatment plant digester – eccentric screw pumps for waste oils and waste fats

In wastewater treatment plants, waste oils and waste fats are fed into the digester every day. High viscosities, fibrous content and impurities can lead to wear and failures if unsuitable pumps are used. The Lutz Pumpen eccentric screw pump tube is suitable for this application. It operates reliably at flow rates of up to 3,000 litres per hour, even with impurities and solids.

Suitable for viscosities up to 100,000 mPas
Corrosion-resistant: Housing and all media-contacting parts are made of stainless steel.
Various chemically resistant rotor and stator materials for different media
Low-pulsation pumping ensures stable feeding into the digester
Modular design makes cleaning and replacement of spare parts easier.

Verschiedene Doppelmembranpumpen-Modelle

Wastewater treatment plant sludge pumps – pneumatic double diaphragm pumps up to 715 l/min

Pneumatic double diaphragm pumps from Lutz Pumpen convey sludge in wastewater treatment plants from the secondary clarifier via intermediate storage tanks through to filter presses or belt dryers. Our LDE range is not only robust, but also minimises the risk of clogging, wear and failures.

Versatile use: Pumping and dosing sludge, flocculants and pH agents
Chemical-resistant in PP or PVDF, with nylon-fabric diaphragms
Efficient thanks to a newly designed air control valve for high effectiveness with low air consumption
Flexible installation: suspended, mobile, submerged, in inflow operation or self-priming
Sizes from 1/4 inch (max. 21 l/min) to 2 inches (max. 715 l/min)

Sludge dewatering in wastewater treatment plants – EASYPURE polymer preparation station up to 5,000 l/h

Wastewater treatment plants have to reduce sludge volume in order to lower transport, disposal and recycling costs. However, imprecise polymer preparations, manual dosing and the use of several individual components make this process time-consuming, error-prone and inefficient. With EASYPURE Powder & Liquid, Lutz-Jesco offers a fully automatic system with integrated control, combining preparation, maturation and dosing of polymer solutions from powder and liquid in a single system. The three-chamber system with three agitators ensures consistent polymer quality at capacities of up to 5,000 l/h, maturation times of up to 60 minutes and concentrations of 0.1 to 0.5%

Consistent polymer quality ensures a constant residual water content in the sludge
Fully dissolved preparation prevents lumps and saves polymer
Pre-assembled complete system with control unit and control cabinet minimises installation errors
High-quality materials and enclosed design for reliable continuous operation in harsh environments
PLC connection for seamless integration into higher-level systems

Disinfecting water in wastewater treatment plants – water disinfection with chlorine gas systems

With the C2526 vacuum chlorine gas dosing unit (DIN 19606) and the EASYZON chlorine dioxide system for in-situ production of chlorine dioxide, Lutz-Jesco supplies proven systems from a single source, including measuring and control technology, chlorine scrubbers, chlorine evaporators and safety shut-off valves. This enables oxidative degradation of trace substances and minimisation of disinfection by-products.

C2526: fully automatic vacuum dosing with remotely adjustable control valve in accordance with DIN 19606 up to 200 kg/h
EASYZON: In-situ production of chlorine dioxide using the acid-chlorite process, with capacities from 5 g/h to 1,400 g/h.

Measuring and control technology in wastewater treatment plants – reliable monitoring of pH, ORP and free chlorine

In fourth-stage treatment, the efficiency and safety of water disinfection are decisive for compliance with statutory limit values. Fluctuating inlet conditions and inaccurate measurements can quickly lead to over- or underdosing, with negative consequences for process stability, operating costs and effluent quality. The EASYPRO water sampling station from Lutz-Jesco records relevant parameters such as pH, ORP, free chlorine, hydrogen peroxide, turbidity, ozone, conductivity and chlorine dioxide, and provides demand-based dosing via MEMDOS dosing pumps.

Expandable measuring technology for up to eight parameters
Precise dosing of acids, alkalis, oxidation agents and disinfectants
Modular system for new and existing plants

Mobile drum pumps for wastewater treatment plants – safely transferring aggressive media from IBCs and drums

Transferring media that are harmful to health involves high safety and cleanliness requirements in wastewater treatment plants. The B2 series drum pumps from Lutz Pumpen enable aggressive liquids such as acids, alkalis and oxidising chemicals to be pumped safely, quickly and with virtually no residue from IBCs, drums and canisters – either with a rechargeable battery or a mains connection, and at up to 65 l/min. For mobile chemical transfer, the B2 Battery Trolley is also available as a complete, flexible solution with tank, pump, flow meter, hose and nozzle.

Chemical-resistant pump tubes made of polyethylene (aluminium as an option)
Pre-assembled sets with battery motor, hose, nozzle and flow meter
High-performance rechargeable battery: 12.6 emptying operations of a 200-litre drum per charge
Standard immersion depths: 1,000 mm and 1,200 mm; special sizes: 300 mm to 3,000 mm

Agitators for wastewater treatment plants – homogeneous mixing of chemicals in IBCs

If precipitants or caustic soda are not mixed homogeneously in IBCs and other containers, concentration differences and deposits occur. This results in inaccurate dosing, reduced effectiveness and process disruptions in the downstream application. The agitators from Lutz Pumpen and Lutz-Jesco ensure homogeneous mixtures and stable downstream processes.

High material resistance: PPH or stainless steel
Replaceable rotors for viscosities up to 5,000 mPas
Operation with a permanently installed or removable motor
Easy handling and installation

Salzburg wastewater treatment plant relies on Lutz Pumpen

Find out how Salzburg wastewater treatment plant reliably feeds waste oils and waste fats into the digester with the help of the B70 progressing cavity pump unit from Lutz Pumpen.

Read the success story

Suitable products

MEMDOS SMART LAX

MEMDOS SMART LAX - reliable dosing of chemicals With the new stepper motor technology of the MEMDOS SMART LAX, even the smallest quantities can be dosed with high precision.The new generation offers a variety of attractive solutions for demanding and complex dosing tasks. The LAX series is available in eight performance ranges.In addition, the new generation of smart pumps has a full-colour 3.5-inch touchscreen display for simple and safe operation,and for even more flexibility, the smart pumps can be ordered ex works with a left- or right-hand display. Graphic display with multilingual menu Display of the flow rate in 7 different units Pump base for standard or wall mounting Password protection and adjustable ranges Alarm status shown in colour on the display Calibration mode Removable display (optional) Display position rotated (optional) Available on request: Multiple pumps can be operated via one display Manual control, 0 - 100 % Analogue control 0/4 - 20 mA, scalable Enable input (external start / stop) Level input with pre- and main alarm Analogue input 0/4 - 20 mA Analogue output 0/4 - 20 mA, scalable

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MEMDOS SMART LPX

MEMDOS SMART LPX - reliable dosing of chemicals With the new stepper motor technology of the MEMDOS SMART LPX, even the smallest quantities can be dispensed with high precision.The new generation offers a variety of attractive solutions for demanding and complex dosing tasks. The LPX series is available in eight performance ranges and is suitable for network operation (Modbus RTU).In addition, the new generation of smart pumps has a full-colour 3.5-inch touchscreen display for simple and safe operation.And for even more flexibility, the Smart pumps can be ordered ex works with a left or right-rotating display 1 Control ratio 1000:1 for MEMDOS SMART LPXGraphic display with multilingual menu Display of the flow rate in 7 different units Pump base for standard or wall mounting Password protection and adjustable ranges Alarm status shown in colour on the display Calibration mode Slow mode: 25 %, 50 %, 75 % Diaphragm change programme Venting function Storage of messages Software backup of four memory locations Removable display: (optional) Display position rotated (optional) Available on request: Multiple Pumps can be operated via one display Manual control, 0 - 100 % Pulse control, constant or dynamic Analogue control 0/4 - 20 mA, scalable Batch dosing: manual start, external start, interval or timer function Network operation, Modbus RTU Enable input (external start / stop) Level input with pre- and main alarm Pulse input, overshoot and undershoot Analogue input 0/4 - 20 mA Diaphragm rupture detection (optional) Pulse output: stroke feedback, alarm or pulse forwarding Analogue output 0/4 - 20 mA, scalable Alarm relay output (1 and 2), adjustable

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MAGDOS LD

MAGDOS LD - Easy handling and space-saving! The MAGDOS LD plays an important role in the reliable and precise dosing of liquids in process sequences and is available in seven performance ranges. Double ball valves ensure exact dosing. The stroke frequency can be adjusted manually or via external control contacts to adapt the dosing capacity. The compact dosing pump can be integrated into any dosing system in a very space-saving manner thanks to its minimal mounting surface and can also be installed in three different positions, upright or horizontal, without the need for additional aids. left or right orientated on the wall. Features & advantages Output range 0.36 - 13 l/h, up to 16 bar Power supply 230 V ±10 %, 50/60 Hz, IP65 or 115 V ± 10 %, 50/60 Hz, IP65 Dosing head ventilation (plastic version) Suitable for wall and floor mounting Material versions PVC, PP, PVDF, stainless steel Stroke frequency precisely adjustable with keypad Graphic display Pulse input (overshoot and undershoot) Level input with pre-alarm and main alarm Enable input for external start/stop Calculation wizard for pulse operation available online CSA and UL certified

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MAGDOS LP

MAGDOS LP - Easy handling and space-saving! The MAGDOS LP is available in seven output ranges. Double ball valves ensure precise dosing. To adjust the dosing capacity, the stroke frequency can be adjusted manually, via external control contacts or via a 0/4 - 20 mA signal. The MAGDOS LP is also available with an optional Ethernet interface. The network connection makes it possible to control the stroke frequency and the number of strokes. In addition, all fault messages can be transmitted in the opposite direction. Features & advantages Output range 0.36 - 13 l/h, up to 16 bar Wide-range power supply 100 - 240 V, 50/60 Hz, IP65 Dosing head ventilation (plastic version) Suitable for wall and floor mounting Material versions PVC, PP, PVDF and stainless steel Stroke frequency precisely adjustable with keypad Graphic display with multilingual menu Analogue input and pulse input (overshoot and undershoot) Level input with pre-alarm and main alarm Enable input for external start/stop Display of flow rate in various units Limitation of the maximum flow rate possible Energy-saving mode "Eco-Mode" possible Stroke feedback output Alarm relay output Batch dosing with interval and timer function Dosing control input Diaphragm rupture detection and signalling (optional) Ethernet interface (optional) CSA and UL certified

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12 l/min.

Mechanical seal (GLRD)

PTFE stator

B70V-D Industry Eccentric Screw Pump Tube

for three-phase motors

Description: The B70V-D 12.1 industrial-grade eccentric screw pump is a high-performance positive displacement pump for medium- to high-viscosity and viscous media right up to the limits of their flowability. Depending on the application, a range of three-phase and compressed air motors are available, which can be combined with the pump tube at any time. This ensures flexibility at all times and helps to conserve important resources. Articulated shaft versions are also available in special immersion depths of 500–2000 mm Examples of media: viscous mineral oils, resins, emulsions, paints and many other viscous substances. Properties & benefits Consistent flow rate Quick and easy cleaning Gentle, low-pulsation product conveyance Smooth running and low wear Wide range of robust and high-performance drive motors Approved in accordance with ATEX Directive 2014/34/EU, Category 1/2

Details

High chemical resistance

Dry-run safe

ATEX option

Evora LDE 1000 (1") double diaphragm air-operated pump

Maximum conveying capacity in a small space - robust, safe and versatile.

Chemical-resistant plastic pump for versatile processes The LDE 1000 PP-TPV/PTFE is the high-quality plastic all-rounder for more demanding media. The PP housing in combination with TPV-PTFE sandwich diaphragms increases resistance to alcohols, solvents and many chlorinated hydrocarbons in the non-hazardous area. This makes this Air operated diaphragm pump suitable for chemical production plants, paint and colour processes, electroplating and waste water contaminated with chemicals, provided that no abrasive components are pumped. It combines cost-effectiveness with higher chemical resistance, making it a very practical solution for many industrial applications. Brief advantages: Higher resistance due to PTFE sandwich diaphragm Suitable for solvents and chemicals Reliable in chemical and surface technology

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EASYPURE Powder & Liquid

EASYPURE Powder & Liquid three-chamber system Reliable polymer preparation station Processing of powder and liquid polymers Convenient operation Integrated control in the control cabinet Multilingual operating display Manual and automatic operation fill level monitoring Withdrawal volume up to 10000 l/h

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Chlorinators C 2526

The C 2526 chlorinators are based on a clear modular system. Whether as a compact device with all functions in a free-standing cabinet or as functional modules for customised system design - you always have a reliable vacuum system at your disposal.The dosing quantity is set manually on devices in the basic version and displayed on the highly resistant glass variable area flow meter. Devices with an automatic control valve allow the dosing quantity to be adjusted remotely using standard signals, and the control valve has a nozzle system that has been specially developed for use with chlorine gas - highly chemically resistant and insensitive to dirt. Features & benefits up to 25 kg/h Flow meter with manual adjustment Highly chemically resistant materials Automatic control valve (optional) Signal converter (optional) back pressure regulator vacuum gauge

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Lutz Pumpen | Lutz-Jesco | Contact

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anfrage@lutz-pumpen.de

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