- By experimental study on effects of coking sewage pretreated by ferrous sulphate on activited sludge process,suitable operating conditions were presented.
- Several azo dyes decolorizing bacterial strains which were capable of denitrifying were isolated from activited sludges.
- Keywords straw pulps;activited sludge treatment/alkaline black liquor;recalcitrant wastewater;
- activited sludge modle
- A thick, messy substance, such as sludge.