Project background: With the rapid development of the economy, the types of pollution sources are increasing, especially in petrochemical areas, industrial concentration areas, and surrounding environments. The pollution modes and ecological damage types are becoming increasingly complex, and the environmental pollution load is gradually increasing. Environmental pollution accidents occur from time to time. At the same time, with the increasing public awareness of the environment, various types of environmental pollution complaints and disputes are becoming more frequent, so the types and requirements for environmental monitoring are becoming higher and higher.

Solution:
According to the Interim Measures for the Review and Management of Total Emission Indicators of Major Pollutants in Construction Projects and the Work Plan for VOCs Remediation and Emission Reduction in the Province (2018-2020), the ecological environment departments of each province require the management of the total VOCs emissions of construction projects, and dynamically manage the VOCs total emission indicators in accordance with the principle of "reducing to increasing". New, renovated, and expanded key industry construction projects that emit VOCs should implement a total substitution system.
The VOCs online monitoring system is designed based on the principle of photoionization (PID), which can measure various volatile organic compounds other than methane, ethane, and propane. It can also adopt multi-stage preprocessing technology to ensure the accuracy of detection data, achieve real-time monitoring, unified collection, analysis, and storage, and reflect pollution emissions in real time, in response to the complex composition, high temperature, high moisture content, and high dust in fixed pollution sources.
Monitoring Area: Petrochemical Industrial Park, Waste Gas Discharge Outlets of Production Enterprises, and Surrounding Areas of Factory Boundaries
Key monitored industries: refining and petrochemicals, chemical raw materials and products manufacturing, chemical raw material manufacturing, synthetic fiber manufacturing, surface coating, printing, shoemaking, furniture manufacturing, artificial board manufacturing, electronic component manufacturing, textile printing and dyeing, plastic manufacturing and plastic products, etc

System features:
The system is highly integrated, with a small overall size and easy installation;
High precision and high-performance gas sensor with a long service life, capable of monitoring 1-3 or more gases simultaneously;
Ultra low power microprocessor, fast response speed, high measurement accuracy, good stability and repeatability;
◆ Automatically store data, with customizable storage intervals;
Supports multiple data output methods such as 4-20mA, RS485, TCP/IP, etc;
RTU433 and GPRS wireless transmission are available for selection.