Any municipality in this state, either individually or jointly by agreement, may own, acquire, construct, equip, extend, and improve, operate, and maintain, either within or without the corporate limits of the municipality, intercepting sewers, including pumping stations, a plant or plants for the treatment, purification, and disposal in a sanitary manner of the liquid and solid wastes, sewage, and night soil of the municipality, or a plant or system for the disposal of the garbage thereof, and may issue bonds therefor as herein prescribed. Any municipality may acquire by gift, grant, purchase, or condemnation necessary lands therefor, either within or without the corporate limits of the municipality and within or without the state of North Dakota. Subject to chapter 32-15, municipalities may invoke and shall have all the rights and privileges granted to public corporations under existing laws with reference to eminent domain for the purpose of acquiring land for the uses mentioned in this section. Any municipality which has outstanding bonds issued pursuant to this chapter may issue additional bonds by the procedure herein prescribed for the purpose of refunding all or any part of such outstanding bonds, whether at or prior to maturity, or for the purpose of providing moneys to be deposited in escrow for the purchase or redemption of such bonds at or prior to maturity. Bonds issued for any of the purposes referred to herein may be combined in a single issue.