Yibin Crystal
3. Dispersion: Sodium carbonate has good dispersion performance, which can disperse suspended solids and particles in water into smaller particles to prevent their deposition and blockage. This characteristic makes sodium carbonate used in sewage treatment, oilfield water injection and other fields. Chelation: sodium sulfate can chelate with heavy metal ions in the water to form a complex, so that the concentration of heavy metal ions in the water can achieve the purpose of purifying water quality.
Fanuo sodium acetate () dosing: when the dosage of sodium acetate is 15mg/L, the outlet concentration of each parameter can reach GB18918-2002A, the pollutant discharge of urban sewage treatment plant. When the dosage of Yibin crystallization is 30mg/L, the phosphorus release rate in anaerobic section, phosphorus absorption rate in aerobic section and nitrogen removal rate in anoxic section can reach 3.54 mgPO43-P/(g MLSS· h) 2.54 mgPO43-P/(g MLSS· h); And 1.53 mgNOx N/(gMLSS· h). When the dosage of sodium acetate is 9mg/L and 15mg/L, denitrifying phosphorus removal occurs in the anoxic section, and the phosphorus absorption rate in the anoxic section is 0.36mgPO43 -- P/(g MLSS· h) and 0.02 (mgPO43 -- P/(gMLSS· h) respectively. In conclusion, the operation will be more reliable when the dosage of sodium acetate is 30mg/L. Yibin
Treatment with chemical agent ammonia nitrogen remover: first, the concentration of total nitrogen and ammonia nitrogen is small. If the concentration difference is small, the ammonia nitrogen remover can be directly used when the ammonia nitrogen concentration is below 200mg/L, and the dosage is determined according to the on-site water volume, so that after the ammonia nitrogen treatment, the total nitrogen will follow. A/O biological denitrification process: the process consists of anoxic tank, aerobic tank and sedimentation tank. The wastewater is first discharged into the anoxic tank to convert organic nitrogen into ammonia nitrogen under the action of ammonifying bacteria, and ammonia nitrogen is converted into nitrate nitrogen by nitrobacteria in the aerobic tank, and then converted into nitrate nitrogen by denitrification. At present, sodium acetate needs to be added as a carbon source in order to discharge sewage in all cities and counties.
Chemical formula: C2H9NaO5
Molecular weight: 136.08
Appearance: white or almost white crystal;
The role of wastewater treatment in Yibin: supplement carbon source for denitrifying bacteria, train denitrifying sludge, and then use buffer solution to control the increase of pH value in denitrification within 0.5. Denitrifying bacteria can over absorb CH3COONa, so when CH3COONa is used as an external carbon source for denitrification, the COD value can also be maintained at a low level.
In addition, the type of carbon source will also directly affect its degradation effect. Therefore, in the utilization of carbon source and total nitrogen, it is necessary to select the carbon source type and dosage according to the actual situation, and comprehensively consider its impact on the overall performance. The sewage treatment process (1) is mainly for water suspension, which is usually physical. After treatment, the suspended solids in sewage can be removed by about 40%, and the organic matter attached to suspended solids can also be removed by about 30%.
