Any person desiring to obtain a special permit from said Board for such purpose shall make written application therefor, and said Board shall hold a public hearing thereon, of which public notice shall be given, and render a decision. The applicant shall show to the satisfaction of said Board that such use of the premises for which such application is made shall not constitute a nuisance because of noise, vibration, smoke, gas fumes, odor, dust or other objectionable features; shall not be hazardous because of fire or explosion; shall not adversely affect the economic status of the district or the Town; and shall not be injurious or dangerous to the public health and the welfare of the district or Town. The Board may grant a permit upon condition especially designed to safeguard the district or Town against permanent and temporary injury to the stabilized values in the district after operations are completed, or because of the methods of handling such materials at the site or because of transporting such material through the Town. The Board may, after a hearing and proof of violation of such conditions or any of the terms of the permit withdraw the permit, after which the use shall be discontinued.