We often see covers on the road. Many people think that it is a sewer or a cesspool. Of course, this is not a septic tank cover. A spark may cause an explosion. At this time, it is necessary to have a sewer truck to handle the septic tank problem.

 

The components of the sewage suction truck consist of oil-water separators, water-gas separators, hydraulic dumpers, vacuum-polluted mercury, and pressure gauges. However, its working principle must be familiar with operations, otherwise the consequences could be disastrous.

In 2014, in Guangxi, a sewage-absorbing vehicle excreted in a certain community. It was still in the suburbs and had a great influence on the shopping partners. The sewage suction truck was private, and the private master Chen also said that It was due to the fact that the tank's switch was not working properly. At that time, the excrement contained in the suction truck was too full, and the pressure in the biogas in the tank caused the excrement to suddenly erupt. For a private suction truck, it is necessary to understand the operation, which is convenient for people.

The working principle of the sewage suction truck is the same. The suction hose is always immersed in the liquid surface. After the air in the fecal tank is sucked, the pressure of the fecal tank is lower than the atmospheric pressure, so that the fecal fluid is under the effect of pressure. After the suction hose enters the holding tank, when the air is continuously discharged into the manure tank, it is compressed because it has no way out. As a result, the pressure in the tank is greater than the atmospheric pressure. The manure is discharged through the siphon tube and the suction hose under the action of the compressed air. Outside the tank. Sewage suction vehicles are also more attractive than suction trucks, with large tonnage, high efficiency, and versatility.

Want to buy sewage suction car should pay attention to some options:

1. Pay attention to the quality of the color plate, the degree of vacuum sealing, poor material can easily cause the deformation of the tank;

2. Select the vacuum package that can withstand pressure and temperature difference;

3. According to the local operating environment, temperature and other factors to choose the rear lid;

4. Must choose no exhaust emissions to avoid environmental pollution

Ammonium Phosphate

Ammonium Phosphate, also known as triammonium phosphate, inorganic compound, molecular formula (NH4) 3PO4, is an ammonium salt of phosphoric acid, containing anhydrous substances and hydrates. Ammonium phosphate is a colorless crystal or gray white powder, sometimes particles, soluble in water. Ammonium phosphate contains nitrogen and phosphorus. It is a compound fertilizer.

When ammonium phosphate is used as fertilizer in agriculture, special attention should be paid to its thermal decomposition and alkali decomposition. In calcareous soils with pH greater than 7.5, decomposition and volatilization of ammonia are easy to occur, and water-soluble phosphorus is transformed into citric acid-soluble phosphorus. The main chemical reactions were:

CaCO3+ (NH4) 2HPO4 - 2NH3+CaHPO4+CO2+H2O

Ammonium phosphate is a kind of high concentration and quick-acting compound fertilizer. Its content of N+P2O5 is about 64%, which is soluble in water and has a high salt index. The salt indices of monoammonium phosphate and diammonium phosphate are 30 and 34, respectively. Therefore, special attention should be paid to not contacting seeds directly when planting fertilizer, and the fertilization point should not be too close to the young roots and buds when making base fertilizer, so as to avoid the burning of ammonia released from the molecule. Ammonium phosphate can be used as base fertilizer and topdressing fertilizer, but because its molecule contains more phosphorus nutrients than nitrogen, its N:P2O5 ratio of monoammonium phosphate is about 1:5 and diammonium phosphate is about 1:2.5. In order to make the phosphorus contained in it play a full role in the early stage of crop growth, it is generally suitable to be used as base fertilizer, for those soils with higher available phosphorus or for rice. For crops with relatively less phosphorus, even as base fertilizer, a certain amount of nitrogen fertilizer should be applied to adjust the proportion of N:P2O5 to an appropriate level. Ammonium phosphate can be mixed with most fertilizers, but it should be avoided to mix with alkaline fertilizers, because it can promote the decomposition of ammonium phosphate and release ammonia.

In addition, using ammonium phosphate as raw material, a variety of compound fertilizers can also be prepared. The main varieties are: (1) ammonium thiophosphate. If the grade of ammonium thiophosphate produced by 32% monoammonium phosphate and 59% Ammonium Sulfate is 16-20-0, the product has good physical properties, the critical moisture absorption point is 75.8%, higher than that of monoammonium phosphate; 2. ammonium nitrate. The grade of representative varieties is 25-25-0, 28-14-0 and so on, which are products neutralized by mixed acid of phosphoric acid and nitric acid and ammonia; and (3) ammonium uric phosphate. This is a kind of high concentration solid compound fertilizer, which has N-P and N-P-K types, such as 28-28-0 and 22-22-11 varieties. It is generally made of ammonium phosphate slurry or granulated powder products and spraying granulated urea. The product has good physical properties and is suitable for a variety of soils and crops.

Ammonium Hydrogen Phosphate,Ammonium Phosphate Dibasic,Ammonium Phosphate,Ammonium Hydrogen Phosphate Dibasic

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