The mayor and council of any city or the mayor or intendant and wardens or council of any town acquiring an ice plant under the provisions of this chapter may appoint such suitable and competent person or persons as may be necessary to operate such ice plant, at salaries to be fixed by such municipal authorities, and the person or persons so appointed may be required to give bond for the faithful performance of their duties in a sum to be fixed by such municipal authorities. Such person or persons may be removed at the will and pleasure of such municipal authorities.