HUT41342A - Process for removing phosphorus from biologically cleaned communal sewages
- Google Patents
Process for removing phosphorus from biologically cleaned communal sewages
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Publication number
HUT41342A
HUT41342AHU476984AHU476984AHUT41342AHU T41342 AHUT41342 AHU T41342AHU 476984 AHU476984 AHU 476984AHU 476984 AHU476984 AHU 476984AHU T41342 AHUT41342 AHU T41342A
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Application filed by Dunantuli Regionalis Vizmue EsfiledCriticalDunantuli Regionalis Vizmue Es
Priority to HU476984ApriorityCriticalpatent/HU204232B/en
Publication of HUT41342ApublicationCriticalpatent/HUT41342A/en
Publication of HU204232BpublicationCriticalpatent/HU204232B/en
To every 1m3 of effluent 0.1-0.2 kg of Ca(OH)2 is added. A sludge phased out at pH 9.2-9.7 is removed by known means. In this case a quantity corresp. to 0.5-1 kg dry wt. of removed sludge per 1m3 of effluent is returned to the Ca(OH)2 contg. mix. simultaneously to the Ca(OH)2 treatment, a disinfecting hypochlorite, sodium or calcium hypochlorite, is added and finally the pH is adjusted to almost neutral pref. by aeration.
HU476984A1984-12-211984-12-21Process for diminishing phosphorous content in biologically purified communalvaste waters
HU204232B
(en)