Maschinenbau

Using polymers to optimise sludge dewatering

Every year several thousand tons of sewage sludge is produced in clarification plants during the various processes used to clean wastewater. Because disposing of this sludge via landfill or burning creates cost, operators try to produce as dry a residual sludge as possible. The generated digested sludge can be massively dewatered by producing and adding polymer solution with the aid of ProMinent’s metering system DULCODOS ULIa, which reduces costs in the disposal of residual sludge.

The metering system DULCODOS ULIa is a compact inline preparation station which converts liquid polymers into a fully activated solution. Featuring an integrated mixing and maturing chamber and metering pump adapted to the application, it is designed for extraction rates of 100 – 400 l/h at concentrations of 0.05 – 1% and a maximum back pressure of 4.5 bar.

Depending on the permitted back pressure, the metering system may be equipped with a peristaltic, solenoid or motor-driven metering pump. This meters the liquid polymer into a special mixing chamber, where the optimum amount of water is added to produce a matured and fully activated polymer solution with a maturing time of 15min. Thanks to its compact design, the metering system saves space at the installation location and offers numerous setup options.

DULCODOS ULIa is very easy to use thanks to an integrated touchpanel; allowing proportional metering and the option of setting polymer preparation rates in l/h with ease. With this optimum process control it ensures reliable operation, which conserves resources.

Alongside its use in sludge dewatering and sludge thickening, DULCODOS ULIa can also be found in industrial and municipal wastewater treatment as well as drinking water preparation.

Über die ProMinent GmbH

The ProMinent Group is a manufacturer of components and systems for metering as well as a reliable solution partner for water treatment.

ProMinent offers practical solutions for various industries through innovative products, a distinctive and long-term understanding of processes and strong application orientation. With this, ProMinent supports its customers worldwide in terms of safety, efficiency and environmental protection.

The Group is headquartered in Heidelberg, Germany. More than 2,700 employees in about 50 own sales and service companies as well as 11 production sites work hard to provide individual solutions and high-quality services to ProMinent customers in about 100 countries.

The ProMinent Group provides solutions for metering, water treatment and disinfection, measuring and control as well as digital fluid management for the following industries:

Chemical industry, industrial and municipal water treatment, food and beverage industry, treatment of swimming pool water, oil and gas industry and process industry.

The extensive product portfolio consists of metering pumps, peristaltic pumps, measuring and control technology and sensors to manage and meter fluids as well as metering systems for water treatment. For this purpose ProMinent pro-vides all common systems, such as chlorine dioxide plants, chlorine gas metering systems, electrolysis systems, UV systems, ozone systems as well as systems for membrane filtration.

In order to be a long-term partner for its customers, the Group is investing constantly both in product innovations as well as in state-of-the-art manufacturing processes and a high level in-house production. 11 worldwide production facilities consistently guarantee high quality, flexibility and delivery reliability.

More detailed information is available at www.prominent.com

Firmenkontakt und Herausgeber der Meldung:

ProMinent GmbH
Im Schuhmachergewann 5-11
69123 Heidelberg
Telefon: +49 (6221) 842-0
Telefax: +49 (6221) 842-215
http://www.prominent.com

Ansprechpartner:
Stephanie Gläßer
Marketing & Communications Manager
Telefon: +49 (6221) 842599
E-Mail: glaesser.stephanie@prominent.com
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