Many food processing plant owners have encountered this. The sewage treatment equipment was in good condition when it was first purchased. However, after a period of use, the water quality of the effluent fluctuates, sometimes high and sometimes low. COD, ammonia, nitrogen and suspended solids, if they exceed the standard, they will exceed the standard.Once the environmental inspection came, fines and shutdowns followed, and the entire production rhythm was completely disrupted.The most difficult thing is that the root cause of the problem cannot be found, and the equipment is randomly debugged, but the more it is repaired, the worse the situation.In fact, behind these excessive problems, there are often several “invisible killers” hidden.
Sewage treatment equipment
There are three major indicators of exceeding the standard, each with its own "root cause”
The effluent of sewage treatment equipment does not meet the standards, and the most stringent environmental protection tests happen to be COD, ammonia and suspended solids.COD exceeds the standard, most of the organic matter has not been completely degraded, and the remaining protein, starch, and grease in the wastewater of the food factory accumulate, making it difficult for the equipment to deal with it.Ammonia nitrogen exceeds the standard, mainly because the nitrogen-containing pollutants are not decomposed thoroughly, and the flora activity in the biochemical system is insufficient.It is most common for suspended solids to exceed the standard, and the water is muddy and has residues. It is often because the pretreatment filtration and precipitation are not done well, the sludge is lost, or the flocculant is added incorrectly.These problems are common problems in the daily operation and maintenance of sewage treatment equipment in food plants.
The “three short boards” of equipment operation: culture, aeration, and pretreatment
The fact that the equipment's own working conditions are in an abnormal state is the most critical core reason for the phenomenon of excessive water discharge.First, there is a situation where the number of strains is insufficient or the activity of the strains is poor.Biochemical treatment relies on microorganisms to be able to decompose pollutants. If the running time lasts for a long time, the bacteria faces aging and then loses and disappears, or the water temperature range and pH value are inappropriate, then the microbial population will lack sufficient ability to degrade ammonia and COD.Second, the degree of aeration is in a state of insufficient.The aeration system exhibits an uneven situation during the oxygen supply, the fan is damaged and malfunctioning, and the aeration disk is clogged. These conditions will cause the biochemical pool to be in a state of hypoxia, and the aerobic bacteria will not be able to continue to survive, and the degradation process of organic matter will stop.Third, the pretreatment link did not meet the due standard requirements.The grille, air flotation machine and sedimentation tank were not cleaned up in time, and large pieces of impurities and oil entered the biochemical tank, blocking the pipeline and destroying the equilibrium state that the biochemical needs to maintain, and the water quality directly seriously exceeded the standard. Phenomenon.
External shocks and human negligence are the most easily ignored
Many companies have repeatedly exceeded the standard, and repeated inspections have been carried out but the reason cannot be found. In fact, it is the impact of water quality load and operation and maintenance errors that are secretly caused.At the peak of production, the amount of wastewater discharged has increased sharply, and the concentration of pollutants has soared rapidly, making the sewage treatment equipment unbearable, and the biochemical system has no time to react, so that the water quality instantly exceeds the standard.There are light and high seasons in food factories, and the amount of water and water quality vary greatly, making it extremely difficult for standard equipment to adapt.In terms of operation and maintenance, it has become a serious problem. If there are no professionals, the amount of medicine added is too much or too little, the sludge is not discharged, and the equipment is not overhauled, the small problem is abruptly delayed and becomes the result of a major failure.
Sewage treatment equipment
Quick rectification in three steps, the right medicine will work
For these problems that exceed the standard, DIEN Water treatment has a set of solutions that can be quickly rectified. Once there is a problem with the bacteria, it will make up for the special biochemical bacteria, adjust the pH value and temperature, and stop the high-load water inlet so that the system can be restored. If the aeration is insufficient, immediately overhaul the fan, replace the clogged aeration plate, and increase the aeration volume. When the pretreatment fails, regularly clean up the grille, air flotation scum and sedimentation tank sludge, and do a good job of front-end filtration. If you encounter a water quality impact, use the adjustment tank to balance the amount of water, or upgrade the equipment according to working conditions.As an enterprise specializing in the production of sewage treatment equipment, DIEN Water Treatment provides customized service support on demand. According to the water quality status, water volume scale and site conditions of the enterprise, the process is specially designed, and it also covers the installation and commissioning links, from the beginning of the installation to the operation and maintenance stage, the whole process will be followed up.Many buyers will ask before purchasing, “What is the price of integrated sewage treatment equipment and how much is each set?" , In fact, what should be thought about is “when purchasing sewage treatment equipment in 2026. what aspects need to be considered?" ”, The adaptability of the process and the strength of the manufacturer are not the slightest bit more important than the price, but much more important.
Source manufacturer of DIEN sewage treatment equipment
The occurrence of water non-compliance is not just a single aspect of the failure, what is the operating state of the equipment, what is the effect of pretreatment, what is the load condition of the water quality, and how is the daily maintenance done. All of these aspects bear corresponding responsibilities.Once the root cause is found, the recovery state can be quickly achieved.Whether it is to select equipment or upgrade it; whether it is for sewage treatment equipment in food plants, general equipment, well water filtration equipment, and demineralized water equipment; as long as you go to DIEN for water treatment, you will never go wrong. .The brand DIEN has been carefully cultivated in the industry for many years. It has a large number of successful cases and has accumulated extremely rich experience. Its equipment has good quality. From pre-sales customized services to after-sales maintenance work, all aspects are trustworthy, which can help enterprises achieve long-term stable and compliant production goals.
