Waste treatment tasks in Northern Hungary

Abstract

Taking into account the points of view of national economy, the utilisation of secondary raw materials and fuels is economically advantageous for the nation, so it is a national interest.

As we presented in the foregoing, utilisation and preparation of raw materials and secondary fuels has no theoretical, environmental, technical and technological obstacles.

In the North Hungarian Region, utilisation (recycling) is most disadvantageous for massive industrial and municipal wastes, where the crucial proportion of waste treatment is represented by disposal. We are backward in processing electronic wastes, too.

Massive industrial wastes can be utilised most advantageously for construction and road construction purposes. It would be especially important to urge utilisation in road construction as currently only 40 percent of the roads owned and maintained by local governments are paved. By utilising fly ash (mainly as binding agent), mining waste (dirt) and blast-furnace cinder, the missing roads can be constructed in a cost-effective way, flexibly adapted to the local possibilities. The tender system should also support road construction utilising secondary raw materials. For expressways, it is reasonable to require that the possibility of using secondary raw materials should be examined for each road construction.

As for solid municipal waste, treatment of residual waste, production of secondary fuel from residual waste for power plants and cement mills as well as collection and utilisation of junk, the most important task for the next period is to reduce the quantity of deposited waste considerably. An advantageous solution for this problem is the use of mechanical-biological stabilisation technologies which can be combined with a complex energetic utilisation of the biologically decomposable portion (production of biogas, growing energy plants). Dry processes, particularly the combined 3A (Aerobic-Anaerobic-Aerobic) technology can be recommended here.

Solving the collection and processing of electronic wastes, based on up-to-date mechanical processes, is also an important task for the next few years.