All proceedings heretofore taken and all elections heretofore held in sanitary districts of whatsoever kind in the Commonwealth of Virginia, whether under general law or special act, to provide for, and with respect to, the contracting of bonded indebtedness and the authorization, issuance, sale, execution and delivery of bonds by or on behalf of all such sanitary districts, are hereby validated, ratified, approved and confirmed, notwithstanding any lack of power of the governing body of the county in which any such district is located to authorize and issue such bonds, or to authorize the execution, sale or delivery thereof, and notwithstanding any defects or irregularities in any such proceedings or elections, or in such execution, sale or delivery; and such bonds so issued or to be issued are and shall be binding, legal, valid and enforceable obligations of any such sanitary districts, notwithstanding any statutory limitation on the amount thereof.