Wastewater treatment plants – Principles for the design of structures and technical equipment – Part 9: Mechanical drainage of sewage sludge
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2017
Wastewater treatment plants – Principles for the design of structures and technical equipment – Part 9: Mechanical drainage of sewage sludge
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/2004
