چكيده به لاتين
The expansion of urbanization, the increasing population of the planet, the excessive exploitation of water resources and the release of wastewater in nature has had negative and irreversible effects on the environment. Also, the geographical location of our country and subsequent droughts do not have the potential to meet the needs of potable water, and thus the researchers' suggestion to solve this problem has been to use unconventional water such as treated wastewater. On the other hand, we know that if we have a comprehensive model for water consumption and post-consumption planning, the total amount of pollutants for the environment will be reduced. To this end, this research seeks to develop a water supply system with consideration of effective and sustainable environmental costs through the study of water consumption and post-consumption applications using an integration approach.
This thesis presents a bi-objective optimization model for green redesign of the water and wastewater network including the location of storage ponds and the possibility of optimally allocating the treated wastewater to agricultural areas and industrial settlements. The main approach has been to reduce the devastating effects of industrial wastewater discharged into the municipal wastewater treatment plant and ultimately to the entry of such pollutants into the environment under conditions of varying quality of inlet wastewater. Then, the model is solved by -constraint method and sensitivity analysis is performed on some important parameters. In addition in this thesis, different qualities of wastewater are considered to the needs of demand points to improve the health of crops, reduce microbial contamination in agricultural areas, and also allow it to be used in industrial areas. In order to validate the model, some cities in the southern province of Tehran have been selected as case studies and the required data have been collected and analyzed from experts in the field. The results show that the proposed model can help the designers in this field to design the suitable distribution network, because despite increasing costs, by installing COD meters or disinfection, the environmental pollution will be reduced. In addition, this model attempts to offset some of the cost increases by selling activated sludge.
