TY - JOUR N2 - The operation of thermal devices and installations, in particular heat exchangers, is associated with the formation of various deposits of sediments, forming the boiler scale. The amount of precipitate depends on the quality of the flowing liquids treatment, as well as the intensity of the use of devices. There are both mechanical and chemical treatment methods to remove these deposits. The chemical methods of boiler scale treatment include the cleaning method consisting in dissolving boiler scale inside heat devices. Worked out descaling concentrate contains phosphoric acid (V) and the components that inhibit corrosion, anti-foam substances, as well as anti-microbial substances as formalin, ammonium chloride, copper sulphate and zinc sulfate. Dissolution of the boiler scale results in the formation of wastewater which can be totally utilized as raw materials in phosphoric fertilizer produc L1 - http://journals.pan.pl/Content/116162/PDF/3-242-kolor.pdf L2 - http://journals.pan.pl/Content/116162 PY - 2020 IS - No 1 DO - 10.24425/mper.2020.132940 KW - heat exchanger KW - chemical treatment method KW - eco-innovative KW - boiler A1 - Olczak, Piotr A1 - Kowalski, Zygmunt A1 - Kulczycka, Joanna A1 - Makara, Agnieszka PB - Production Engineering Committee of the Polish Academy of Sciences, Polish Association for Production Management VL - vol. 11 DA - 2020.03.30 T1 - Eco-innovative method of cleaning heat exchangers from boiler scale UR - http://journals.pan.pl/dlibra/publication/edition/116162 T2 - Management and Production Engineering Review ER -