The reasons why total nitrogen does not decline after adding carbon sources in Datong Sanshui Solid Plant: the sewage treatment plant adds high COD carbon sources, but the degradation effect of total nitrogen cannot be caused by the following reasons: 1. Too many high COD carbon sources are added: too many high COD carbon sources can not fully digest and absorb the microbial flora in the sewage treatment plant, The degradation of COD produces a large amount of ammonia nitrogen, which affects the degradation effect of total nitrogen. Nature and use: colorless or white grain crystal, which can be weathered and combustible in the air. The crystal water is lost at 123 ℃. But usually the wet process has the taste of acetic acid. Hydrolysis occurs in water. The products of Datong Sanshui Solid Factory are divided into solid and two kinds, solid: colorless or white crystal Clear, without sexual odor. Mainly used in printing and dyeing industry, photography, electroplating, chemical reagents and organic synthesis. In the production of hot water bags, hot water bags, warm feet, warm water bags, warm handbags, and electric water bags.
The crystallization point is 58 ℃, and the density is 1.528 g/cm ³. The BOD5 equivalent of Datong trihydrate sodium acetate is 0.52 (mgBOD/mg sodium acetate), so when sodium acetate is added as a carbon source, the calculation formula is as follows: dosage X=(4 － CBOD5/Cn) × Cn/0.52.
It is alkaline. Because acetate ion and sodium ion are ionized, acetate ion is a weak ion that can be hydrolyzed to produce hydroxyl ion, while sodium ion cannot be hydrolyzed, so it is alkaline. The reaction of three water ions is: CH3COO -+H2O=CH3COOH+OH -. Note: The solution is a mixture, so there is no chemical formula, but its main effective component is CH3COONa.
After mixing, continue to fully mix with denitrification sludge under the action of stage aeration and submersible mixer. Only when the carbon source, sewage and sludge are fully mixed can the denitrification and pollution be sufficient and the denitrification can be carried out for enough time to achieve the treatment effect. The dosing point can be set on the inlet pipe or at the inlet port of the denitrification tank. It should be noted that short flow should be avoided as far as possible and the denitrification tank should be fully stirred. Sodium acetate is mainly used in printing and dyeing industry, photography, electroplating, chemical reagent and organic synthesis. In the anoxic denitrification stage, the nitrate nitrogen (NO3-N) in the sewage is reduced to gaseous nitrogen (N2) under the action of denitrification bacteria.
Anaerobic tanks are commonly used in urban domestic sewage industry and play a key role in nitrogen and phosphorus removal. Datong Sanshui Solid Plant uses microbial phosphorus releasing bacteria, which are a kind of microorganisms that play an important role in wastewater treatment. They can effectively convert organic salts in sewage into inorganic salts and release phosphorus for use by other bacteria. The error of Datong Sanshui Solid Plant is relatively large, and the time of dissolution, hydrolysis and ionization of solid carbon source after entering water should be considered. Under the conditions, carbon source should be added in the form of solution as far as possible, and metering or automatic control should be done well. The concentration of carbon source solution should be high and low. Before dosing, pay attention to pretreatment, filtering and control before dosing pump.
