Under the background of the increasingly stringent “dual carbon” goals and environmental protection regulations, industrial tail gas emission control has evolved from “passive compliance” to a “must-answer question” for the high-quality development of enterprises. Particulate matter (PM) and nitrogen oxides (NOₓ), as the two core pollutants in industrial tail gas, are not only the main causes of environmental problems such as smog and acid rain, but also directly related to the production license and brand reputation of enterprises. However, the traditional governance model often falls into the dilemma of “one device for one pollution”, and the superposition of multiple systems leads to high investment costs, large floor space, complex operation and maintenance and other problems, which have become the main pain points in pollution control for many enterprises. With years of deep cultivation in the field of tail gas treatment, Green Valley Environmental Protection has created an integrated tail gas treatment system through technological innovation, realizing “one device, dual purification and full compliance”, providing an efficient solution for enterprises to solve the dual pollution control challenges.
The core advantage of Green ValleyEnvironmental Protection’s integrated tail gas treatment system lies in breaking the technical barriers between particulate matter and nitrogen oxide treatment, constructing a full-process treatment system of “synergistic dust and nitrogen oxide purification”. Without the superposition of multiple sets of equipment, it can simultaneously overcome the two major pollutant exceeding problems. The system deeply integrates composite ceramic fiber filter tube technology, high-efficiency SCR denitration technology and precise flow field optimization design, drawing on the advanced process concepts in the “National Directory of Pollution Control Technology Guidelines (Encouraged Category)”, realizing full-chain synergy from pre-treatment to end-of-pipe purification, making tail gas treatment more efficient, energy-saving and stable.
To address the problem of excessive particulate matter emissions, the system adopts an upgraded composite ceramic fiber filter tube dust removal unit. Compared with traditional baghouse dust removal technology, the filter tube material has the advantages of high temperature resistance, corrosion resistance and long service life, which can withstand medium and high temperature flue gas environments of 200℃-400℃, and the filter material life is far more than 2.5 years. Its unique structural design can efficiently capture full-size pollutants from coarse particles to PM2.5 and even ultra-fine particles through the dual effects of inertial sedimentation and filter bag interception. Even if the inlet flue gas particulate matter concentration is ≤15g/m³, the outlet concentration can be stably controlled below 10mg/m³, with a dust removal efficiency of up to 99.99%. At the same time, the system is equipped with an intelligent ash cleaning device, which automatically controls the ash cleaning frequency through differential pressure, avoiding secondary dust emission, fundamentally ensuring the stability of dust removal efficiency, and completely solving common problems plaguing enterprises such as excessive particulate matter and equipment blockage.
In terms of nitrogen oxide treatment, the system integrates a high-efficiency SCR denitration unit, using supported special catalysts, which accurately match the medium and low temperature reaction range (200℃-400℃), realizing high-efficiency denitration without additional heat supply. The catalyst has excellent anti-poisoning ability and catalytic activity, and can efficiently convert NOₓ into harmless nitrogen and water under the working conditions of complex flue gas composition and fluctuating concentration, with a denitration efficiency of over 90%. According to the flue gas characteristics of different industries, Green Valley Environmental Protection can customize the SNCR-SCR coupled denitration scheme to further improve the denitration effect, ensuring that the outlet nitrogen oxide concentration is stably below 50mg/m³, which is far better than the current environmental protection emission standards. It is worth mentioning that the system adopts precise ammonia injection control technology, which dynamically adjusts the reducing agent dosage by real-time monitoring the NOₓ concentration in the flue gas. The ammonia slip can be controlled below 8mg/m³, avoiding secondary pollution and balancing treatment effect and environmental safety.
In addition to the outstanding core purification capacity, Green Valley Environmental Protection’s integrated system also fully considers the actual operation needs of enterprises, highlighting the characteristics of “intensification, intelligence and low cost” in design. The system adopts modular integrated design, highly integrating dust removal, denitration, pre-treatment, control system and other units. The floor space is reduced by more than 60% compared with the traditional multiple sets of systems, which is especially suitable for renovation projects of old factories and limited space. The intelligent control system is equipped with Internet of Things technology, which can real-time monitor key parameters such as flue gas concentration, equipment operation status and reagent consumption, realizing automatic start-stop, fault early warning and remote operation and maintenance, greatly reducing manual operation and maintenance costs, and avoiding the risk of non-compliance due to improper operation. Compared with the superposition of multiple sets of systems, the integrated system can reduce the initial investment cost by 30%-40% and the operation and maintenance cost by more than 25%, saving a lot of capital investment for enterprises.
With its excellent treatment effect and comprehensive advantages, Green Valley Environmental Protection’s integrated tail gas treatment system has been widely used in many industries such as iron and steel, cement, alumina, industrial furnaces and diesel engines, and has been verified by the practice of thousands of enterprises. In the renovation project of a steel pellet plant, the system simultaneously treated particulate matter and nitrogen oxides in the flue gas. After renovation, the particulate matter concentration decreased from 80mg/m³ to below 5mg/m³, and the NOₓ concentration decreased from 800mg/m³ to below 50mg/m³. All indicators are far better than environmental protection standards. At the same time, it realizes waste heat recovery and utilization, achieving synergistic efficiency of pollution reduction and carbon reduction; In a diesel engine tail gas treatment project, the system successfully solved the problem of excessive dual pollution in mobile source tail gas, providing a feasible path for the treatment of mobile pollution sources such as construction machinery and freight vehicles. Application cases of many enterprises have proved that Lvgu Environmental Protection’s integrated system can not only meet the current stringent environmental protection requirements, but also adapt to the future upgrading of emission standards, providing long-term and stable treatment guarantee for enterprises.
Green Valley Environmental protection governance is not a burden, but the confidence for the high-quality development of enterprises. Adhering to the concept of “driving environmental protection upgrading through technological innovation”, Green Valley Environmental Protection continuously optimizes the integrated tail gas treatment technology, focuses on the pain points of enterprise governance, and provides the whole industrial chain services from scheme design, equipment manufacturing, installation and commissioning to operation and maintenance services. Whether it is excessive particulate matter, excessive nitrogen oxides, or multi-pollutant synergistic governance needs, Green Valley Environmental Protection’s one set of integrated system can achieve full compliance emission, allowing enterprises to get rid of the predicament of multiple equipment superposition, complete environmental protection upgrading in a lower cost and more efficient way, and achieve cost reduction and efficiency increase while complying with operations.
In the future, Green Valley Environmental Protection will continue to deepen the technological innovation of tail gas treatment, promote the industrial application of more advanced processes, help enterprises practice the concept of green development, and contribute to winning the battle for blue sky and promoting the high-quality development of ecological environment!
Post time: Dec-31-2025