Decentralised sewage sludge recycling

The concept of decentralised sewage sludge recycling in rotary kiln also enables smaller or medium-sized local authorities, associations and waste disposal companies to be independent and cost-effective.

Decentralised sewage sludge recycling‎

Decentralised sewage sludge recycling creates the conditions for sewage sludge disposal to be profitable – both financially and environmentally. The combination of drying and combustion of the sewage sludge at your own site offers both economically advantageous and environmentally friendly independence. Travelling and storage are saved, and the rising costs of large-scale plants no longer pose obstacles on the way to worthwhile and efficient recycling of sewage sludge.

Thanks to the decentralised sewage sludge recycling, nutrients remain in the region – another aspect that opens up great opportunities. With low investment costs, the Werkstätten heating-systems GmbH decentralised sewage sludge recycling stands for greater efficiency, transparency and regionality. We achieve these goals as a strong partner who listens and thinks, researches, plans and advises. We are convinced of the concept of decentralised sewage sludge recycling and committed to it.

Essential building blocks

  • Drying of the dewatered sewage sludge to 85–90 %-TS, incl. exhaust air treatment
  • Mono-combustion of the dried sewage sludge in the rotary kiln, incl. flue gas cleaning
  • Planning and approval procedure

Fuel — sewage sludge and industrial sludge

Combustion in the rotary kiln

Slag-free, temperature-controlled combustion

Incineration ash

• Complete burnout

• Plant available phosphorus

• Ideal for P-Recovery

Essential building blocks

  • Drying of the dewatered sewage sludge to 85–90 %-TS, incl. exhaust air treatment
  • Mono-combustion of the dried sewage sludge in the rotary kiln, incl. flue gas cleaning
  • Planning and approval procedure

Fuel — sewage sludge and industrial sludge

Combustion in the rotary kiln

Slag-free, temperature-controlled combustion

Incineration ash

• Complete burnout

• Plant available phosphorus

• Ideal for P-Recovery

Customer-specific system solutions

Depending on the location, interests and current requirements, the above modules can be combined as required. From the complete turnkey solution, including operator models, to the delivery of individual core components, such as the rotary boiler with flue gas cleaning, we stand by our customers.

Decentralised drying and combustion can be expanded in stages and in modules. The cascading of 500 kW rotary kilns creates redundancy and flexibility in terms of the tons per year as popular orders of magnitude that enable approvals without public participation.

Werkstätten heating-systems GmbH: Funktionsweise dezentrale Klärschlammverwertung mit Drehrohrkessel
Werkstätten heating-systems GmbH:  Funktionsweise dezentrale Klärschlammverwertung mit Drehrohrkessel

Special features

  • Regional recycling on site reduces sewage sludge tourism and strengthens independence
  • Energy self-sufficient and unmanned overall concept
  • Modularly expandable via cascading
  • Complete burnout of ashes due to controllability of the residence times
  • Water-cooled, rotating combustion chamber prevents slagging of the ashes
  • Incineration ash recyclable for P‑recovery
  • Homogeneous combustion process despite fluctuating calorific values and ash content
  • Complete oxidation of the flue gases in downstream afterburner chamber
  • Small space requirement due to smart system size

Contact persons

Nils Moggert

Nils Moggert

+49 (0) 5921 / 8076 — 32
n.moggert@werkstaetten-gmbh.de

Alfred Moggert

Alfred Moggert

+49 (0) 5921 / 8076 — 0
a.moggert@werkstaetten-gmbh.de

IFAT Messe München