Everyone who has done it knows how difficult the sewage in the slaughterhouse is.COD is often tens of thousands of times, blood, water and grease are mixed together, and the amount of water is constantly increasing and decreasing.Environmental protection is now strictly checked, and if the water does not meet the standards, it will be fined and discontinued.Many bosses go to the sewage treatment equipment and ask how much it costs when they come up, but they don't think clearly about how to choose the process.In my opinion, the core of sewage treatment in slaughterhouses is two words-degreasing.The oil can't go away, and all the biochemical systems behind it are in vain.
Sewage treatment equipment
The difficulty of slaughtering sewage treatment lies in these points
The concentration of organic matter is high, there are many suspended solids, heavy grease, and large fluctuations in water volume. These four problems are tied together. If any one is not dealt with well, the entire line will lie down.Especially during the peak hours of slaughter in the early hours of the morning, the amount of water can soar to two or three times the usual level. The equipment is too small to carry, and the free time is wasted when the equipment is too large.In February 2024. we took over a slaughterhouse project in Baoji with a daily processing capacity of 300 tons. The previous set of equipment was a sedimentation tank, and the effluent COD was 4.000 or 5.000 per year, and the environmental protection was fined twice.Our DIEN's technical team has measured the water quality for three days in the past, and re-set the process-the grease trap and dissolved air flotation first destroy the oil and suspended solids, then enter the anaerobic tank to degrade high-concentration organic matter, and then contact the oxidation tank for oxygen treatment, and finally precipitate and disinfect the water.After three months, the effluent COD stabilized below 80. and the environmental protection review was carried out once.
Do not copy the process plan, adaptation to working conditions is the key
The common process combination for sewage treatment in slaughterhouses is "oil isolation + air flotation + anaerobic + aerobic + precipitation". This framework is no problem, but the parameters have to be adjusted according to your own water quality.The volume of the anaerobic tank, the length of stay in the aerobic section, and the amount of aeration are all calculated, not determined by patting the head.Many people just stare at the price comparison of sewage purification equipment, and the process selection is ten times more important than the price.Choosing the wrong process, operating costs can drag you down.
Don't covet low prices for core equipment. Instead of saving money, you will suffer a lot.
The air flotation machine is the main force for degreasing, and the effect of dissolving the air is almost the same, and the content of the effluent oil cannot be suppressed.The temperature control and stirring system of the anaerobic tank directly determine the degradation efficiency, and this waste of money is full of troubles.The selection of the aeration head in the aerobic section is also particular, and it is enough for you to feel distressed if you block it and change it once.
Sewage treatment equipment
Our DIEN Water treatment has been used as sewage treatment equipment for slaughterhouses for so many years, and the process plan is based on the actual water quality, without a template.We also have complete equipment, grease trap, dissolved air flotation machine, anaerobic reactor, contact oxidation tank, MBR membrane bioreactor, integrated sewage treatment equipment, sludge dewatering machine, dosing device, basically all the needs of a project can be equipped.After-sales service is nationwide warranty, 24-hour response, regular inspections and remote monitoring after delivery, and no need to wait for someone to be sent directly if there is a problem.What is the daily processing capacity of your factory?Talk about it in the comment area and help you see how the craftsmanship matches.
