Herhof - The Company

Technologies for
waste treatment

herhof logo

Range of services:

Herhof has a wide spectrum of services. Apart from designing, constructing, commissioning and operating composting, biogas and Dry Stabilat® plants, we also offer carefully thought-out and customised waste separation and sorting equipment.


These also include services in the areas of support and maintenance as well as different services for exhaust air and water treatment, controlling and switching systems.

Group structure

Herhof has a strong background

With this strong relationship as our foundation we are able to fulfill each customer’s special requirements. Without ifs and buts.

Herhof GmbH

is a subsidiary of the Greek waste management company Helector S.A.The majority position in Helector is held by the Greek conglomerate Ellaktor S.A..

Ellaktor S.A.

The publicly traded company ranks among the largest in Greece and is active in the areas of:

  • renewable energy
  • environmental technology
  • construction sector
  • real estate development
  • privately-financed infrastructural projects

With this strong relationship

as our foundation, we are in the position to design your project in an optimal manner with careful attention to all important details in the

  • engineering
  • construction
  • commissioning
  • operation stages
helector logo

Helector S.A.

... is responsible for the sectors environment, energy and waste management in the Ellaktor S.A. Group. In this regard, Helector S.A. covers all areas of traditional waste management from waste collection to energy recovery.

Herhof GmbH

With the acquisition of Herhof GmbH in the year 2005, the product range has been extended by another promising field, the treatment of waste according to the Dry Stabilate® process. Since 2005, numerous activities have developed on the German market. Following this trend the company Loock Biogassysteme GmbH was acquired and the know-how was integrated in Herhof. Since that time many reference plants in the area of generating biogas out of separate collected bio waste and renewable energy crops were constructed and are in operations since many years.

Philosophy and business areas

Active climate

Landfilling has always been a temporary solution and it cannot be justified eco-logically and economically. Valuable raw materials were taken away from the economic cycle and the consequential costs and ecological hazards were shifted to following generations. Herhof is committed to meeting this challenge.

Commercial and ecological alternative

In view of increasingly scarce fossil energy resources our Herhof technologies offer an outstanding commercial and ecological alternative. We promote the balance of nature through recirculation of its resources into the natural cycle.

We use the Stabilat®-process

to produce a storable and environment-friendly source of energy.

The use of Stabilat® substitutes fossil fuels

such as coal, crude oil and natural gas. Due to its high organic content, Stabilat® releases 80% less CO2 during the energy production than conventional fuels. As a result innovative waste management becomes an active climate protection measure


In our responsibility

Air. Water. Soil.

These are three elements that are worth thinking about innovatively and working for hard.

Protecting the environment and its resources...

... is the main factor that links all our ideas and concepts. It is not only based on the Herhof Stabilat® process, it is also the fundamental idea underlying all of our composting and biogas plants.


The Herhof box composting system...

... transforms organic waste quickly into nutrient-rich compost for farming or soil improvement in other areas.


LARA® air treatment and air purification system or with biofilters

When you use Herhof equipment to exploit waste for the production of energy or compost, the exhaust air is purified in the process – either with the LARA® air treatment and air purification system or with biofilters. These filters do not only absorb dirt but odours as well.



The condensation water and sewage are recycled with all the necessary treatment steps – from pretreatment through biological and chemical-physical cleaning to the treatment of sewage – and used for internal reuse.

Contact details

Herhof GmbH
Kalkgraben 2
35606 Solms – Germany

Fon: +49 (0) 6442 - 207 0
Fax: +49 (0) 6442 - 207 233
Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


-> www.ellaktor.com

-> www.helector.com

About us

As fossil energy resources become ever scarcer, Herhof technologies present an excellent economic and ecological alternative. We support ecological equilibrium by returning resources to the cycle of nature.