Tell me, what is the effect of landfill odor treatment?

The smell of the dump is very bad, especially in the summer. We can choose to use industrial plant deodorizer to remove the odor of the garbage dump, it is a plant sap extracted from the flowers, leaves, stems and roots of many plants, this plant sap contains many active molecules, which can decompose the odor molecules on the garbage into odorless molecules to achieve the purpose of eliminating the taste.

Use different equipment to spray in different garbage sites. In small garbage dumps such as residential areas, schools, and company dormitory buildings: after diluting 100-200 times, a fine sprinkler is used to spray it manually; Small pressure station and garbage transfer station are used with 100-200 times dilution of garbage deodorization equipment, and the preparation is fully stirred and sprayed immediately, and the spraying must be evenly covered to be in place.

The odor generally comes from bacterial metabolism, and the N,S in proteins will be metabolized into odorous small molecules, which are volatile (for example, the rancid smell of corpses comes from pentanediamine, also known as cadaverine) and sulfides (the odor components in the garbage dump smell more like mercaptans, thioethers, thioesters, etc., than hydrogen sulfide, and wastewater ditches generally smell of hydrogen sulfide). It is not a wise choice to remove these odors with air fresheners, because fresheners cannot remove the odor of these gases themselves, if they only blindly use a large number of chemical flavors to cover up the odor, not only can not remove the odor, but also cause secondary pollution to the garbage on the sprayed garbage.

You can use a plant liquid deodorant to deodorize, which is a plant liquid extracted from the flowers, leaves, stems, and roots of many plants, which can effectively remove this smell.

The most commonly used method is to use garbage foam deodorizing membrane, which can kill the bacteria caused by organic mildew in a short time, and it is safe.

Landfill gas treatment methods include: activated carbon adsorption deodorization method and ion deodorization method.

1. Activated carbon adsorption and deodorization method.

The activated carbon adsorption and deodorization method is to use the characteristics of activated carbon to adsorb the odorous substances in the odor, and set up the activated carbon adsorbent in the adsorption box, and the odorous substances are discharged from the adsorption box after the contact between the odorous substances and the activated carbon adsorbent to achieve the purpose of deodorization.

2. Ion deodorization method.

The ion deodorization method uses the characteristics of extremely high chemical activity generated inside the plasma, and uses a high-voltage discharge device to produce high-energy electrons and ions during discharge, separating the oxygen molecules in the air, and the oxygen molecules absorb energy to produce free oxygen ions, and the odorous exhaust gas pollutants react with the free oxygen groups, and finally convert into CO2 and H2O and other substances, so as to achieve the purpose of purifying the exhaust gas.

Components of landfill gas:

Depending on the landfill waste and its composition, the landfill gas contains 30% 55% methane by volume, 30% 45% carbon dioxide by volume, and small amounts of air, odorous gases, and other trace gases.

Methane in landfill gas is a flammable and explosive gas. Since methane needs to be mixed with air, accounting for 5% to 15% of the air, there is almost no danger in a closed landfill. However, it can happen when the beam-burning landfill gas is transferred outside the landfill through the voids in the soil and mixed with the air.

Landfill gas also contains trace amounts of ammonia, carbon monoxide, hydrogen sulfide, a variety of volatile organic compounds and other substances, which can cause foul odor problems and air pollution.

The two main components of landfill gases (methane and carbon dioxide) are greenhouse gases. However, according to the relevant regulations of the United Nations Intergovernmental Panel on Climate Change (IPCC), the carbon dioxide in the untreated landfill gas is the result of biomass decomposition and is part of the natural carbon cycle, and is not included in the greenhouse gas of the nanometer temperature cave. Methane, the landfill gas, is included in the list of atmospheric greenhouse gases, and its greenhouse effect is 21 times that of the same volume of carbon dioxide.

The above content reference: Encyclopedia - Landfill Gas.