نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم و مهندسی آب، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران.
2 گروه علوم و مهندسی آب، واحد علوم و تحقیقات دانشگاه آزاد اسلامی، تهران، ایران.
3 مؤسسه تحقیقات آب وزارت نیرو، تهران، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The metropolis of Tehran has seven drinking water treatment plants, which according to the water needs, more than one billion cubic meters of water treated by the treatment plants are provided to the customers annually. Five percent of the volume of water entering the treatment plants is converted into wastewater, which is estimated at 50 million cubic meters per year. If managed in the recycling process, it will play an important role in balancing water resources and preventing water loss. Therefore, this study seeks to evaluate the recycling process of water treatment in the field of drinking water supply in Tehran to increase the stability of water supply and demand cycle. For this purpose, in order to effectively regenerate this cycle, it was evaluated in the treatment plant No. seven in Tehran with an incoming water volume of 155 million cubic meters per year. In this regard, the results of evaluation of the recycling process change in the treatment plant showed that by changing the wastewater treatment process and the use of polyelectrolyte, the amount of effluent decreased by 95%. The results showed that the volume of effluent decreased from 7.7 million cubic meters per year to 310,000 cubic meters per year, which in fact, Five percent efficiency of effluent production to three tenthe of percent of effluent production in this process change. This change in the effluent system produced in the drinking water treatment plant can greatly contribute to the sustainability of water resources, especially groundwater, given the volume of water resources required by Tehran.
کلیدواژهها [English]