Process for binding free carbonic acid in drinking and industrial water
DE569003C
Process for the disinfection and purification of water for drinking and consumption purposes by high chlorination
DE572901C
Process for the production of a fertilizer from peat and sewage sludge
DE569753C
Process for the detoxification of coal gas
DE523786C
Device for digesting sewage sludge
DE440974C
Device for the dilution of waste water
DE426765C
Process for the biological cleaning of organically polluted, acidic or acidic wastewater, e.g. B. waste water from breweries, distilleries, pressed yeast factories u. like
DE426422C
Process for the biological purification of waste water containing phenol
DE407986C
Device for cleaning waste water in a container provided with a sedimentation channel
DE421160C
Process for the further decomposition (fermentation, digestion) of already rotted sewage sludge that no longer contains any significant reduction in organic matter
DE412555C
Device for ventilation, especially for waste water purification
DE408812C
Process and device for converting sewage sludge containing sulfur compounds into a valuable fertilizer
DE399802C
Process for the biological cleaning of hot, organically contaminated waste water
DE387273C
Processes and devices for rendering the smelly gases rising from sludge digestion or similar rooms in sewage treatment plants odorless
