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Application of PM2.5 sensor in straw incineration monitoring

Update: 2020-06-10 17:12 Source: LUFTMY Reading: ↻ News

Straw burning as a kind of biomass combustion has become a global concern.And when straw burning, atmospheric sulfur dioxide, nitrogen dioxide, inhalable particulate three pollution index to reach the peak value.When the concentration of inhalable particulates reaches a certain level, it will stimulate the mucosa in the eyes, nose and throat, which may cause cough, chest tightness and tears, and may lead to bronchial inflammation in severe cases.Next, let's understand the harm of straw burning and the monitoring scheme.

Application of PM2.5 sensor in straw incineration monitoring


Effect of straw burning on air quality

Straw burning is the current killer of land, air and environmental sustainability.The concentration of sulfur dioxide produced by burning straw is more than twice as high as usual, and the concentration of nitrogen dioxide and inhalable particles is even three times higher than usual!When the concentration reaches a certain degree, the eyes, nose and throat will contain mucosal part of a strong stimulus, mild cause cough, chest tightness, tears, severe may lead to bronchitis and other upper respiratory diseases, and may even cause suffocation.

In addition, burning straw will damage the soil structure, resulting in a decline in land fertility: According to relevant reports, the organic matter in China's main agricultural land has generally dropped from more than 4.0% in the 1960s to less than 1.8% at present.Therefore, straw burning coupled with the overloaded use of land with more tillage and less cultivation has made the agricultural land in China and abroad overwhelmed.At the same time, straw burning makes the ground temperature rise sharply, which will directly destroy the beneficial microorganisms in the soil, and at the same time, only some potassium and undissolved phosphorus are left, which are difficult to be absorbed by the crops.In the long run, there are incalculable losses to farmers' later cultivation and earnings.

Prevention and control countermeasures

A. Return the straw to the field

B. Straw energy conversion

C. Formulation of policies and systems

For air quality monitoring at present, our country mainly is based on the ground fixed site observation instruments to obtain the concentration of the atmospheric pollutants, monitoring for straw burning, LUFTMY recommended LD09 laser PM2.5 sensor module, he is a high accuracy based on the theory of the laser MIE MIE scattering particle concentration sensor and can collect continuously per unit volume and calculate the number of different particle sizes of suspended particles in the air, the particle concentration distribution, and conversion into mass concentration, and the output in the form of general digital interface.The sensor can be embedded into various instruments or environmental improvement equipment related to the concentration of suspended particulate matter in the air to provide timely and accurate concentration data.

LD09 Laser PM2.5 Dust Sensor Model

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