Design of a 10 MeV, 1000 kW average power electron-beam accelerator for wastewater treatment applications
Ram Dhuley, I. Gonin, S. Kazakov, T. Khabiboulline, A. Sukhanov, Vyacheslav Yakovlev, A. Saini, N. Solyak, Aaron Sauers, Jayakar Thangaraj, K. Zeller, Bruno Coriton, Roman Kostin
Abstract
We present the technical and engineering design of a medium energy (10 MeV) and high average power (1000 kW) electron-beam accelerator intended for irradiation treatment of high-volume industrial and municipal wastewater. The accelerator uses a ${\mathrm{Nb}}_{3}\mathrm{Sn}$ superconducting radio-frequency (SRF) cavity for producing the high average beam power with $>90%$ rf to beam efficiency. The design of the accelerator is tailored for industrial settings by adopting the cryocooler conduction-cooling technique for the SRF cavity instead of a conventional liquid helium bath cryosystem. The technical design is supplemented with a detailed analysis of capital and operating cost of the accelerator. The designed accelerator can treat up to 12 million gallons per day of wastewater, requires capital of $\ensuremath{\sim}$8\text{ }\text{ }\mathrm{M}$ for construction, and has $\ensuremath{\sim}13.5\text{ }\text{ }\textcent{}/\mathrm{ton}/\mathrm{kGy}$ in material processing cost.