If the food processing plant is stuck in the neck of environmental protection by sewage, then the production will have to be shut down. However, problems such as high COD, full pools of oil, and slag blocking pipes can cause the boss a headache for several days.Don't worry, today we will pick out some dry goods from the "Operation Record and Selection Points of Sewage Treatment Equipment in Food Factories", break the pain points apart and crush them to understand, and see how to spend the right money to get things done.
DIEN Water Treatment-Sewage Treatment Equipment Manufacturer
Why does high oil and high COD always make equipment "strike”?
There are three major “thorns” in food wastewater, which are high-concentration organic matter, large amounts of grease, and piles of suspended solids.For example, the COD in meat workshops often reaches tens of thousands at every turn. Once these starches and proteins are soaked in water, the bacteria in the biochemical pool will directly “suffocate” due to hypoxia.The grease is even more disgusting. The oil slick will wrap around the aeration plate, causing oxygen to be unable to enter, and the system will be paralyzed in an instant.Not only that, coupled with impurities such as peel and meat residue, the water pump will be clogged at both ends in three days, making the maintenance workers so tired that they break their legs.In addition, the displacement of food factories during the light and peak seasons varies greatly, whether it is large or small, ordinary equipment simply cannot withstand this kind of fluctuation.
Air flotation machine and biochemical pool are the "golden partners”
To deal with this pot of “muddy water”, the generally recognized safe method in the industry is to use an air flotation machine for pretreatment and multi-stage biochemical treatment. The wastewater is first passed through a mechanical grille to block large residues, and then enters the regulating tank to homogenize the water quality and water volume to prevent the equipment from being overwhelmed during peak periods. Then the dissolved air flotation machine comes into play, and an appropriate amount of PAC and PAM agents are put in, allowing the fine air bubbles to envelop the grease and suspended solids and float to the surface of the water. With a push by the slag scraper, about 80% of the oil can be cleaned up, and then it is hydrolyzed and acidified to add A/ O Biochemical pool continues to work, anaerobic bacteria are responsible for decomposing macromolecules, and aerobic bacteria are responsible for removing residual COD.For example, a reliable sewage treatment equipment manufacturer like DIEN Water Treatment can customize the treatment tonnage according to demand, ranging from the level of a small workshop with a scale of tens of tons to the level of a large factory production line with a scale of thousands of tons, and it can also package the installation and commissioning of the equipment, which can save a lot of worry.
There are “three tricks” to reduce COD and remove grease. Remember
In order to achieve the purpose of achieving standards stably for a long time and cannot rely on only one machine, it is necessary to deal with the three aspects of medicine, technology and accessories.When dealing with grease problems, for oil slick, the grease trap is used to separate by gravity, while for emulsified oil, air flotation must be used to achieve the demulsification effect. DIEN Water treatment will equip frying plants and dairy plants with two-stage air flotation devices, so that the efficiency of degreasing will directly increase exponentially.The degradation of COD needs to be divided into two steps to advance: for high-concentration wastewater, the anaerobic treatment method is first used to achieve the effect of removing 70%, and the remaining part is handed over to aerobic bacteria to slowly decompose and remove, and the aeration volume and sludge reflux ratio can be adjusted accordingly at any time based on the data obtained from the daily tests.Don't covet low prices and buy models with lower configurations. Just check the "Operation Records and Selection Points of Sewage Treatment Equipment in Food Factories" to see that when the process configuration reaches a complete level, the long-term operation and maintenance costs will actually be much lower.
DIEN sewage treatment equipment
Whether it is up to standard or reused, you can go both ways.
There are two different ways out for the treated water. One is to discharge it out of the standard, and apply a disinfection process to the corresponding treatment. When all indicators meet the standard, it can be discharged into the pipe network. This situation is suitable for small factories that do not have the need for wastewater reuse; the other is to reuse wastewater, equipped with quartz sand and activated carbon for in-depth treatment, so that the water can be used to flush the ground, clean raw materials and even irrigate and greening, thereby saving a considerable amount of water bills.DIEN water treatment can adjust the modules according to the area occupied by the plant and the specific sewage discharge standards, and will not forcibly stuff a bunch of configurations that are not used at all for the purpose of obtaining more profits, thereby raising the price of sewage purification equipment for no reason.
In the end, the key to dealing with the difficult problems of wastewater generated by food is actually to figure out the quality of the water and choose the correct and appropriate process.There is a set of sewage treatment equipment used in food factories that meets the standard requirements in terms of design. It can not only handle the situation of high oil content and high COD, but also stabilize the cost of operation and maintenance.In the future, whether it is to choose the sewage treatment equipment used in the food factory, or to choose the equipment for well water filtration or the equipment for demineralized water, you can directly go to DIEN for water treatment.This manufacturer specializing in the production of sewage treatment equipment has been in operation for more than ten years. It has many successful practical landing cases and has a wealth of practical operation experience. The equipment it is equipped with is solid and reliable in terms of materials. From the field survey to the delivery of the goods, to the door-to-door commissioning, the whole process will be followed up throughout the process, and the speed of response in the after-sales area is also very fast, which really makes people feel trustworthy.
