|The first solid waste sanitary landfill was built in Azerbaijan|
Balakhani waste landfill has been fully rehabilitated in compliance with modern environmental and sanitary norms within the framework of Integrated Solid Waste Management Project, implemented jointly by the Ministry of Economy of the Republic of Azerbaijan and the World Bank.
The construction works of the transformation of Balakhani landfill to sanitary landfill that meets the highest international standards and will extend its operation for the next 20 years, were started in the beginning of 2015. Although the location of the landfill is on the shore of the “Boyuk Shor” lake and in an area with complicated terrain, all the construction and restoration works have been carried out successfully.
The rehabilitation of landfill was implemented by a consortium of Turkish “Gokshin Inshaat” and Greek “Mesogeos S.A” companies. As a result of restoration works, grounding was completed in the area of 60 hectares and respectively 2.9 million m² material was covered with a special variety purpose (geogrid, geotextile, geomembrane etc.) isolation layers. A total of 26 special waste disposal cells were built and capacity was created for the disposal of approximately 9.7 million tons of waste in the constructed area. At the same time, in order to collect the leachate and storm water as well as biogas, a network of high-density polyethylene pipes of different sizes with 40 km long, 15 special manholes, 2 pools for pre-treatment of leachate in capacity of 1500 m³ and 400 m³ respectively, trenches with 3 km long, more than 400 biogas collection wells were installed. A special type of reverse osmosis treatment plant was built for leachate water treatment with daily capacity of 80 m3. CHP unit for biogas collection and its conversion to energy was also installed in the territory. Greenery and renovation works have been carried out in order to prevent erosion in the landfill area.
It should be emphasized that all construction and restoration works on the landfill were implemented under the technical control of the German "Fichtner" company.