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 - Part 13: Chemical treatment; Treatment of wastewater by precipitation/flocculation; German version EN 12255-13:2002— 16 стр.
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 10: Specific principles for the equipment for thermal sludge drying— 16 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 10: Specific principles for the equipment for thermal sludge drying— 25 стр.