The slaughtering wastewater cannot be directly discharged. The slaughtering wastewater is generally dark red and has a fishy odor. If it is directly discharged, it will seriously pollute the environment and seriously damage the ecosystem. Slaughter wastewater is a high-concentration organic wastewater. The fat, protein and other substances in these sewage are directly discharged into the water body without treatment, which will cause serious eutrophication of the surrounding water body, seriously damage the self-purification ability of the water body, cause the water body to turn black and odorous, and affect the environment and agricultural irrigation.

The delivery and use of air flotation equipment has also promoted a wave of wastewater treatment in the aquaculture industry. This equipment is also a high-quality equipment that can complete solid-liquid separation equipment. It has low project investment, small footprint and high level of automation technology. There are many advantages.

Air flotation equipment plays a key role in the breeding industry. It can carry out different tasks in the breeding industry. Since the import and export of the poultry industry is still increasing, the sewage in the breeding industry is also increasing, which will give internal The working pressure of the flowing river and its inner lake water is obvious, and the application of air flotation equipment is obvious.

Water pollution control has always been a social concern. Water resources are not only for human beings, but also for all freshwater organisms to survive. While saving water, we also treat some polluted waters.

Slaughter wastewater sewage treatment process

1. Grille adjustment pool

(1) Mechanical grille: intercept and remove hair and visceral residues in wastewater.

(2) Regulating tank: storing wastewater, evenly adjusting the water quality and quantity, can effectively slow down the impact of fluctuations in wastewater flow and reduce the load.

2. Air flotation coagulation tank

Some oily substances with low density in the wastewater are floated to the liquid surface by air flotation, and then the scum is removed by a slag scraper.

3. Anaerobic tank

In the anaerobic tank, the facultative microorganisms are used to reduce the nitrate in the sewage to molecular nitrogen, which escapes into the atmosphere and plays a role in denitrification. The hydrolysis and acidification tank also plays the role of acid fermentation, degrades carbohydrates into fatty acids, and degrades the difficult organisms. The degraded macromolecular substances are converted into easily biodegradable small molecular substances.

4. Anoxic pool

After the anaerobic reaction, it enters the anoxic tank for denitrification to further remove ammonia nitrogen.

5. Aerobic pool

In the aerobic tank, the remaining organic carbides are digested and removed by biological contact oxidation. The main process is mechanical blast oxygenation biological contact oxidation treatment technology. Adsorb colloidal substances in sewage on its surface. The organic matter in it enables the microorganisms to multiply rapidly under the condition of sufficient oxygen. At the same time, these microorganisms further adsorb the suspended solids colloid and dissolved substances in the sewage, and gradually form a biofilm, and the sewage is purified by the adsorption and oxidative flocculation of the biofilm.

6. Sedimentation tank

After the biochemical aerobic reaction, the wastewater enters the sedimentation tank for solid-liquid separation, the sludge sinks to the bottom of the tank and is pumped into the sludge thickening tank for pressure filtration through the sludge pump, and the supernatant is discharged up to the standard.

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