Background: The sewage treatment plant gathers urban domestic sewage, industrial emergency sewage, runoff sewage, etc. It is collected by urban pipelines and should pass through urban sewage treatment plants. The sewage contains a large number of organic matter, viruses and germs. Among them, gas hazards cause great trouble inside and around the factory. The collection and fermentation of sewage produces oxygen O2, hydrogen sulfide H2S and ammonia NH3. It is necessary to select different gas detection instruments according to the use environment to target and monitor. Therefore, the Yiyuntian project engineering team tailors this real-time online detection system for ammonia, hydrogen sulfide and methane concentration in sewage treatment plants according to the characteristics of the on-site situation, so as to jointly create safe production in sewage treatment plants.

The harmful gases in sewage treatment plants come from sewage treatment workers.These links in the art: anaerobic process link, sludge concentration and dehydration link, fermentation and overflow of polluting components in sewage water quality, abnormal operation of sewage and wastewater stations, etc. The main components are malodorous gas, methane, ammonia and hydrogen sulfide, among which the malodor is mainly composed of amines, thiol, organic sulfides, manure tretin, indol and other trace MVOC gases.

The harm of these gases in sewage

Technical parameters of sewage treatment plant gas online monitoring system:

Selection model: TH2000 pretreatment system, online composite gas detector MIC-600-3

Inspection Test gas: oxygen O2, hydrogen sulfide H2S, ammonia NH3

Detection range: O2(0-21%VOL, resolution: 0.01%VOL)

H2S, NH3 (0-500ppm, resolution 0.1ppm)

Precision: ±3%(F.S)

Industrial-grade 6-year anti-interference, pipeline complex environment oxygen measurement, high-performance H2S, NH3 electrochemical sensor

1.7-inch high-definition color screen (single channel, concentration real-time curve)

Zero point automatic tracking, ppm, mg/m3 units can be switched

Low alarm, high alarm, interval alarm, weighted average alarm

Three-wire 4-20ma signal/R S485/relay output

24V DC power supply, with infrared remote control function

Pretreatment system (explosion-proof)

The detector is built into the pretreatment system

including pump, water vapor filter, dust filtration and other treatment devices, automatic cooling, dehumidification and constant temperature drainage< /P>

Including tar processing system

Add: 2 spherical valves

Reverse blowing system interface

2 water vapor filters

Resistant to environments below 600 degrees Celsius

The role of sewage online monitoring system

The sewage online monitoring system can realize automatic sampling, flow online monitoring and online monitoring of major pollution factors for enterprise wastewater, urban sewage, rural sewage, industrial sewage and aquaculture sewage. Measurement; grasp the total amount of pollutant emissions in sewage in real time to realize the automatic transmission of monitoring data; the sewage water quality online monitoring platform is deployed on the cloud server to summarize, sort out and comprehensively analyze the data; the sewage water quality online monitoring platform monitoring data is sent in multiple ways, and different departments monitor it in real time, and abnormal data will be alerted. Report and deal with it to avoid forging.

On-site installation drawing