Sewage treatment plants - Principles for the design of structures and technical equipment - Part 4: Specific principles for shutoff devices without body— 6 стр.
Wastewater treatment plants - Rectangular tanks - Part 3: Grit chambers with suction type sludge remover and sludge scraper; Types, main dimensions, equipment— 8 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 3: Specific principles for the equipment for aerobical biological wastewater treatment— 28 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 4: Specific principles for shutoff devices as penstocks, sluice gates, stoplogs etc.— 11 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 8: Specific principles for the equipment for sewage treatment in granular media filter and granular fixed bed filter— 14 стр.
German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of the amenability to anaerobic digestion (S 8)— 12 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 2: Specific principles for the equipment for separating and thickening of solids— 28 стр.