【 Dry goods, recommended collection 】 Cleverly use three techniques to make the wastewater from the breeding farm no longer turbid

Direct targeting of pain points in breeding farms
Friends who raise cattle, are they always overwhelmed by the problem of cow farm wastewater? Every time the cleaning truck comes and goes, the wastewater is still filled with feed residues and cow manure, which is extremely turbid and cannot be clear no matter how hard it is! What's even more headache inducing is that the calves accidentally drank such water and easily became watery. Watching the calves lose their energy makes us feel extremely uncomfortable.
Take a 500 head cattle farm as an example, due to improper wastewater treatment causing water pollution, calves getting sick from accidental drinking, and the cost of water replacement and treatment alone, it costs at least an additional 30000 yuan per year! This is not a small amount of money, the hard-earned money from raising cattle has been lost in vain.

Actually, don't worry, everyone! As long as physical technology is used correctly, these problems can be easily solved. Not only can it make the wastewater clear and clean, but it can also save half of the treatment cost, which really helps us save money and worry! Next, let me explain in detail these three magical physical technologies, which are definitely the magic weapons for treating wastewater in cattle farms.

3 major physical technology disassembly (exclusive adaptation for cattle farms)
（1） Precipitation method: entry-level solid-liquid separation technology for cattle farms
The precipitation method is the most fundamental physical technology in the treatment of cattle farm wastewater, and can be called an "entry-level" solid-liquid separation technique. Its principle is very simple, which is to use the effect of gravity to naturally sink large particles such as cow manure and straw residue in wastewater. It's like letting a cup of water mixed with sediment settle for a period of time, and the sediment will slowly settle to the bottom of the cup.
In cattle farms, in order to achieve better sedimentation results, a "inclined tube sedimentation tank" design is usually used. This sedimentation tank is not ordinary, it is 30% more efficient than ordinary sedimentation tanks! The design of the inclined pipe greatly increases the sedimentation area, allowing large particles to settle faster and more effectively. It can intercept 60% of the suspended solids in the wastewater, just like installing a strong "interception net" for the wastewater.

Principle diagram of precipitation method
The sedimentation method is most suitable for the pretreatment of wastewater from milking parlors in cattle farms. The wastewater from milking parlors often contains a large amount of suspended solids. If it directly enters the subsequent treatment process, it is easy to cause pipeline blockage and affect the normal operation of the entire treatment system. After pretreatment by precipitation method, most of the suspended solids are removed, and subsequent treatment becomes much smoother.
In terms of cost and effectiveness, the precipitation method is also quite outstanding. The cost of treating a single ton of wastewater is only 0.2 yuan, which is extremely cost-effective. Moreover, the treatment effect is significant, with the suspended solids content of the wastewater significantly reduced from 800mg/L to 320mg/L after sedimentation. The subsequent filtration pressure is directly halved, which reduces a lot of burden for subsequent deep treatment.
（2） Air flotation separation: oil removal+oxygenation, dual effect treatment of cattle farm wastewater
The air flotation separation technology has the dual effect of killing two birds with one stone in the treatment of cattle farm wastewater, achieving the dual purpose of oil removal and oxygenation. Its principle is to introduce air into the wastewater, causing the air to generate a large number of tiny bubbles in the water. These bubbles are like "small suction cups" that can adsorb oils and fats in wastewater, such as milk fat contained in milking parlor wastewater, as well as small suspended solids that are difficult to precipitate.
At the same time, during the generation and ascent of bubbles, oxygen can be replenished to the water body, which is crucial for subsequent biological treatment processes. Because during biological treatment, microorganisms need sufficient oxygen to decompose organics in wastewater, and foam separation technology "reserves" oxygen for microorganisms in advance, which can make them play a better role.

Principle diagram of air flotation separation method
After actual testing in cattle farms, the effectiveness of air flotation separation technology is astonishing. The transparency of the treated wastewater has significantly increased from 25cm to 75cm, making the water clear and transparent. The dissolved oxygen content increased by 1.8mg/L, providing a more suitable living environment for microorganisms, resulting in a 20% increase in microbial activity during subsequent biological treatment, greatly enhancing the effectiveness of biochemical treatment.
This technology is particularly suitable for large-scale dairy farms, especially for addressing the problem of "oily and difficult to degrade" wastewater from milking parlors. It is simply a targeted solution. It can quickly and effectively remove oil, solve a major problem in wastewater treatment, and increase the dissolved oxygen content of water, laying a good foundation for the smooth progress of the entire wastewater treatment process.
（3） Mechanical filtration: precise interception, guaranteed water resource reuse
For the treatment of wastewater from cattle farms, mechanical filtration technology mainly uses 80 mesh filters to intercept small suspended solids. This filter screen can be thinner than that used in pig farms. It is specially designed according to the particle characteristics of cattle farm wastewater, and can accurately intercept the small impurities missed by sedimentation method and foam separation method.
In order to avoid clogging of the filter screen during interception and affecting the filtration effect, the mechanical filtration equipment is also equipped with an automatic backwash function. Just like how we regularly clean the filters at home, the automatic backwash function will regularly clean the filters to keep them in good working condition and ensure the continuous stability of the filtration process.

Schematic diagram of mechanical filtration method
After mechanical filtration, the suspended solids (SS) in the wastewater can be reduced to below 50mg/L, greatly improving the water quality. This kind of water, after simple disinfection treatment, can be safely used for washing cattle pens. Moreover, using treated wastewater can save 60% of water costs compared to purchasing tap water, which truly saves expenses for cattle farms. With mechanical filtration technology, the operating costs of cattle farms have also been reduced, killing two birds with one stone.
Selection Table of Technologies for Cattle Farms of Different Sizes
Cattle farms of different scales face varying wastewater treatment issues and demands. In order to help everyone choose the most suitable physical processing technology for their cattle farm more clearly, a technology selection table has been compiled below. You can directly "copy homework"!

For individual cattle farms, the number of cattle is relatively small, but the problem of cow manure accumulation cannot be ignored. And the budget is limited, so we cannot invest too much money in wastewater treatment. In this case, the combination of sedimentation tank and simple filter screen is very suitable. The sedimentation tank can use gravity to remove most of the large particles such as cow manure, and a simple filter screen can be used for simple filtration to make the wastewater relatively clear. The treated wastewater is used for irrigating farmland, achieving the rational utilization of water resources, with a single ton treatment cost of only 0.1-0.3 yuan, which is economical.
The scale of medium-sized cattle farms is moderate, and the treatment of milking parlor wastewater has become a key focus. This type of wastewater has a high content of oil and suspended solids, and the simple sedimentation method cannot meet the treatment requirements. The combination of sedimentation and air flotation separation technology can effectively solve the problem. First, remove the large particle suspended solids through sedimentation, and then use foam to separate and remove oil and fine suspended solids, so that the wastewater can meet the discharge standard. Although the single ton processing cost is 0.5-0.8 yuan, it can effectively solve the problem of wastewater pollution and ensure the normal operation of the cattle farm.
Due to their large scale, large-scale cattle farms generate a large amount of wastewater and have a high demand for water resource reuse. Mechanical filtration+automatic control system is the best choice. Mechanical filtration can finely intercept tiny suspended solids to ensure water quality, while automatic control systems can achieve automated operation, improve treatment efficiency, and meet the needs of large-scale cattle farms for large-scale wastewater treatment and reuse. The treated wastewater can be used for washing cattle pens. Although the cost per ton of treatment is 1-1.2 yuan, in the long run, it saves a lot of water resource procurement costs and has significant comprehensive benefits.
Conclusion
I believe everyone has gained a deeper understanding of the physical technology for treating wastewater from cattle farms. The situation of each cattle farm is different, and the sources and characteristics of wastewater are also different.