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1,Denitrification-specific water treatment biological material
Vaccination and domestication:
Fill the reactor with denitrification-specific water treatment biological material which grain size is 4-5MM. Filling height in the reactor is two-thirds;
Vaccinate activity sludge: water with NO3-N concentration 40-100mg/L flows through the measurement pump, and flows into denitrification-specific water treatment biological material reactor. Up-flow water intake is be used, discharges in the outlet, oxygen concentration is not controlled.
Domestication:
Stay in the water: for 2-3h at a temperature of 25-30 ° c under conditions of film culture of denitrifying microbe, 5-7days to water flowing out, water quality is stabilize,
,activated sludge acclimation and biofilm colonization is finished;
2,Under the same conditions, removal of nitrate from waste water.
3,Denitrification-specific water treatment biological materials is using as carbon source and bio film carrier method of nitrogen, and its denitrification theory are as follows:
Denitrification-specific water treatment biological materials act as biofilm carrier, for biofilm growth, and biodegrades in the presence of enzyme, denitrification microbial in the biofilm nitrogen removal using Denitrification-specific water treatment biological materials as carbon sources and an electron donor, reducing nitrate to nitrogen, thereby achieving complete removal of nitrates in water.
4,Features and benefits:
Water insoluble Denitrification-specific water treatment biological materials act as biofilms carriers, and as carbon source for denitrifying microbes, it creat a stable, easy to maintain microbial habitat, which is improvement and innovation of traditional biological nitrogen removal process ;
Overcoming disadvantage that difficult to control carbon dosage in traditional biological nitrogen removal process, avoiding risk of secondary pollution caused by the carbon source addition of excessive.
It can form dense biofilm on solid carbon source surface, and has a strong ability to adapt changes in environmental conditions , especially there is no strict limit for the DO concentration , and broaden the field of application of biological denitrification technology
5,Appearance: granular
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