Waste treatment, namely, treatment of organic matter for nutrient recovery; production of energy; Machines and installations for use in producing electrical or thermal energy in the nature of block type thermal power stations for power generation, namely, biogas installations and nutrient recovery installations for use in producing fertilizers; generators of electricity; mixing machines; Electrical energy; fuel gas; Construction, maintenance, repair and installation of biomass treatment plants for nutrient recovery and biogas production; factory construction; machinery installation, maintenance and repair; Chemicals used in industry and science, as well as in agriculture, horticulture and forestry except fungicides, herbicides, insecticides and parasiticides; manures; agricultural chemicals, except fungicides, herbicides, insecticides and parasiticides; aqueous ammonia; ammonia volatile alkali for industrial purposes; volatile alkali ammonia for industrial purposes; ammonium salts; bacterial preparations other than for medical and veterinary use; fertilizers; manure for agriculture; fertilizing preparations; humus; industrial chemicals; methane; phosphates fertilizers; phosphorus; potash; salts fertilizers; sulfur; sulfates; Technological advisory services relating to nitrogen control and nutrient recovery in biogas plants; scientific laboratory services; scientific research and design in the field of biomass conversions relating to nitrogen control and nutrient recovery in biogas plants; scientific research in the field of environmental protection
