Sewage treatment plants - Principles for the design of structures and technical equipment - Part 5: Specific principles for plants for anaerobic sludge and wastewater treatment— 6 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 5: Specific principles for plants for anaerobic wastewater treatment— 12 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 5: Specific principles for plants for anaerobic wastewater treatment— 12 стр.