Process for the treatment of water using microorganisms
DE19941457A1
Filter removing pollutants from standing waters, e.g. ponds, lakes and aquaria, contains spun plastic yarn filter material, interspaces of which are populated with microorganisms
SK17052000A3
Use of alkaline earth metal peroxides
DE19851345A1
Decontamination of water, sewage, soil, sediment and slurry, giving phosphate useful as fertilizer
DE19821609A1
Precipitation of phosphate and heavy metals from water or sediment using alkaline earth metal peroxide, giving high level of phosphate removal
CZ9903240A3
Use of peroxyhydrates of alkali carbonates in fish breeding
AU6721698A
Device for the metered dispensing of substances
DE19736507A1
Osmotic, effectively non-moving part dosing system, delivering fluid or gas over protracted interval
DE19711810A1
Ecologically harmless alkali carbonate per:oxy-hydrate used for economical water and sediment treatment
DE19707198A1
Osmotic, effectively non-moving part dosing system, delivering fluid or gas over protracted interval
DE19544951A1
Use of compositions containing calcium carbonate and sodium-bi:carbonate
DE4344926C1
Composition for water treatment and soil remediation and their use
