Assessment and usage in agriculture of water from wastewater treatment stations

Abstract

There is an increasing shortage of economically effective water sources for irrigation with suitable quality indicators in agricultural regions of Bulgaria and Slovakia because of irregular allocation of water sources. In the same time, numerous stations for biologically treated wastewater were established in both countries. The treated water due to its high content of organic pollution worsens the quality characteristics of the intakes, mostly river streams. The negative water balance of both countries limits the development of the irrigated agriculture. The usage of treated wastewater for irrigation in agricultural fields of villages is an option not only for the intensification of the agriculture but also for the protection of the water flows from pollution, as well. The fundamental goal of this work is development and implementation of a system for assessment and usage in agriculture of the treated water coming from wastewater treatment stations. The objectives are the solutions of specific theoretical and practical tasks, as well as assessment of the treated water effect on products in greenhouses’ experiments, and development and implementation of the system for agro-ecological assessment of the treated water. The system helps solving some environmental and economic problems of the society, which are strongly related to the sustainable agricultural development.

There is an increasing shortage of economically effective water sources for irrigation with suitable quality indicators in agricultural regions of Bulgaria and Slovakia because of irregular allocation of water sources. In the same time, numerous stations for biologically treated wastewater were established in both countries. The treated water due to its high content of organic pollution worsens the quality characteristics of the intakes, mostly river streams. The negative water balance of both countries limits the development of the irrigated agriculture. The usage of treated wastewater for irrigation in agricultural fields of villages is an option not only for the intensification of the agriculture but also for the protection of the water flows from pollution, as well. The fundamental goal of this work is development and implementation of a system for assessment and usage in agriculture of the treated water coming from wastewater treatment stations. The objectives are the solutions of specific theoretical and practical tasks, as well as assessment of the treated water effect on products in greenhouses’ experiments, and development and implementation of the system for agro-ecological assessment of the treated water. The system helps solving some environmental and economic problems of the society, which are strongly related to the sustainable agricultural development.