Xishuangbanna solution anaerobic tank is added in the biochemical nitrogen removal process. Generally, when the carbon nitrogen ratio of the biochemical tank is not suitable, carbon sources will be added to promote the denitrification reaction of nitrogen removal and the nitrogen removal efficiency. 5. The life cycle analysis/assessment of the life cycle method is the follow-up assessment of the product "from cradle to grave" [13].
Sodium acetate is a carbon source! The COD added to the solution anaerobic tank is the chemical oxygen demand. Sodium acetate: when the COD equivalent is about 200000 (the effective amount of sodium acetate is 25%), and the content continues to rise, crystallization will occur.
Because the molecular chain of glucose is longer than that of sodium acetate, more glucose is used for the early commissioning of activated sludge in the sewage plant, and of course, some glucose is also used for denitrification. COD equivalent is relatively high, but BOD value is relatively low. A by-product salt similar to colorless crystal, such as sodium sulfate. In this way, the COD of industrial glucose will be greatly reduced. So after you buy glucose, you can taste the salt. If it is salty, it is added with a lot of salt. Then measure whether the COD equivalent is!
Carbon source addition in sewage treatment Carbon source addition is a key link in sewage treatment process, which can provide organic carbon, promote microbial metabolism and cell proliferation in sewage, and participate in the degradation of organic matter. In sewage treatment, common carbon source dosing includes dosing in aeration tank, aerobic tank and evolution tank. The dosing of Xishuangbanna solution anaerobic tank 3. The lack of biological nitrogen and carbon sources has always been a difficult point for the sewage plant to remove nitrogen and phosphorus, and the requirements are more stringent. When there is less organic pollution and less carbon source in the influent of the sewage plant, but the content of nitrogen and phosphorus is high, the carbon source of sewage treatment cannot meet the demand for biological nitrogen removal, and the excess nitrogen will cause the total nitrogen to exceed the standard.
Biological carbon source: biological carbon source refers to the cost performance ratio of some macromolecular sugars, agricultural waste, etc. through the principle of bioengineering. Xishuangbanna solution, however, sometimes the carbon source sold in the market is not fully fermented. Although COD can meet the requirements, there are also long-chain organics, which are not easy to be used by denitrifying bacteria, and may cause COD to exceed the standard.
In the practical application of Xishuangbanna solution anaerobic tank dosing, Qingdao brewery wastewater is famous for its application as a carbon source for sewage treatment. Turning brewery wastewater into treasure, as the carbon source of sewage treatment plant, not only solves the high cost of brewery wastewater treatment, but also solves the problem of carbon source shortage of denitrification in sewage treatment plant. 2. For sewage plants with unbalanced influent nutrition, adding carbon sources will bring large costs. Many sewage plants will stop adding carbon sources after microorganisms grow up, but when microorganisms do not have enough carbon sources to maintain their own growth, they will age and disintegrate again. Long term carbon source is required to maintain process operation.
