An intelligent detection device for sludge aerobic fermentation hydrogen sulfide

Abstract

The invention discloses an intelligent detection device of hydrogen sulfide generated by sludge aerobic fermentation. The intelligent detection device comprises a high-temperature and high-humidity gas pretreatment system and an automatic monitoring and intelligent drying system, wherein the high-temperature and high-humidity gas pretreatment system comprises a snake-shaped condensation pipe, a gas-water separator, a sedimentation cylinder, a drainage valve, a Nafion pipe, two air suction pumps and five electronic control valves; the snake-shaped condensation pipe, the gas-water separator, the air suction pumps, the sedimentation cylinder and the Nafion pipe are sequentially connected in series; the electronic control valve I is arranged at the front end of the snake-shaped condensation pipe; the electronic control valve II is arranged at the lower end of the gas-water separator; the electronic control valve III is arranged between the gas-water separator and the air suction pumps; and the electronic control valve IV is arranged at the lower end of the sedimentation cylinder. The intelligent detection device has a high-temperature and high-humidity composted gas pretreatment system and an intelligent air exhausting drying function; the intelligent detection is adopted so that automatic monitoring and unattended operation can be realized; the measurement time, the measurement duration and the measurement intervals are set by programmable control and the intelligent detection device can be manually operated when necessary.

Description

technical field [0001] The invention relates to the detection field, in particular to an intelligent detection device for sludge aerobic fermentation hydrogen sulfide. Background technique [0002] Various odor substances will be produced during the composting process, and the resulting odor pollution problem has become an obstacle limiting the development of composting technology. Hydrogen sulfide is the product of incomplete decomposition of organic matter by anaerobic bacteria when the oxygen supply is insufficient. It is an important odor substance produced during the composting process. During the high-temperature composting process of municipal sludge, the highest concentration of hydrogen sulfide can exceed 100mg / m 3 , because the smell threshold of hydrogen sulfide is 0.007mg / m 3 , so in the traditional composting process, its contribution rate to the odor concentration is relatively high. If it is not properly controlled, it will be discharged and cause pollution t...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. Lack of measures to remove water vapor in the detection gas, which cannot protect the electrochemical detector and affect the service life

2. The function is single, it cannot be automatically monitored and unattended, and it cannot be programmed to set the measurement time, measurement duration and measurement interval, and manual operation is required

The disadvantages are: 1. The diffusion method is used to detect gas, and the timeliness is poor

2. Lack of measures to remove water vapor in the detection gas, which cannot protect the electrochemical detector and affect the service life

3. The function is single, it cannot be monitored automatically and unattended, and it cannot be programmed to set the measurement time, measurement duration and measurement interval, and manual operation is required

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