11
Biogas fermenters (biogas reactors), being parts for installations for producing biogas and being parts for block-type thermal power stations; Installations for treating fermented products, residues and substances, for separating solid and liquid substances; Installations for extracting nutrients and fertilisers, and for water treatment; Installations for process heat recovery in biogas installations and installations carrying out biogas processes; Gas scrubbers and gas purifying apparatus, in particular for separating unwanted components out of biogas, including carbon dioxide and/or hydrogen sulphide and/or nitrogen; Gas treatment installations for biogas for storing same in (municipal) gas supply networks
37
Construction, namely building of installations for the production of biogas and combined heat and power stations; Repair and (remote) maintenance of installations for producing biogas and components therefor, and block-type thermal power stations; Repair and (remote) maintenance of gas scrubbers, gas purifying apparatus or gas treatment installations
42
Planning of installations for producing biogas and block-type thermal power stations; Implementation of control technology for block-type thermal power stations and biogas installations; Process biological consultancy and support for installations for producing biogas; Engineering, in particular for the planning, development and control of biogas installations and block-type thermal power stations