A semiconductor enterprise in Shanghai is known as the “provider of gaseous blood” for the semiconductor industry. By supplying ultra-high purity gases and professional technical services, it supports every critical stage of chip manufacturing—from lithography, etching to deposition and cleaning—making it an indispensable link in the semiconductor industry chain. However, semiconductor manufacturing has strict requirements for continuous power supply. As a key emergency backup device, the standby diesel generator sets have their exhaust emissions becoming the core of environmental compliance.
In response to the enterprise’s situation, Green Valley Environmental Protection has developed a comprehensive treatment system featuring “precision capture + efficient conversion”. Its core technology is the integrated design of DPF (Diesel Particulate Filter) and SCR (Selective Catalytic Reduction). The particulate filter of Green Valley Environmental Protection adopts a 316L alloy wire carrier to trap particulates through interception. It uses a snap-on modular design, compatible with different domestic and international brands. Through intelligent control, when the load reaches a certain level and PM particulates cause blockage leading to high back pressure, the control system will alarm and open the bypass. When the engine requires maintenance, users only need to release the snaps, rotate the flange, and the metal filter element can be flexibly pulled out for regeneration through water washing.
Green Valley Environmental Protection’s SCR denitration system can provide customized solutions according to different brand models and unit power. Under specific temperatures and conditions, it uses urea reducing agent to convert NOx into harmless nitrogen and water, with a stable denitration efficiency of over 95%. The denitration equipment can optimize the activity of the catalyst based on the unit displacement, emission characteristics, and the frequent start-stop feature of semiconductor standby units, ensuring compliance with emission standards even under low-load conditions. It also monitors emission data in real time through precision pressure sensors and automatic control systems.
- Project Name: Comprehensive Exhaust Gas Treatment for Standby Generator Sets of a Semiconductor Enterprise in Shanghai
- Treatment Type: DPF + SCR Denitration
- Brand Model: Cummins KTA50-G16A
- Emission Indicators: NOx reduced from 3147mg/m³N to 200mg/m³N; Smoke and dust reduced from original <200mg to 30mg
- Matching Models: GRVNES50-TX-16 and GRVNES50-CYJ-16-L

Through one-stop services including scheme design and equipment installation guidance, Green Valley Environmental Protection will continue to deepen the technological iteration of DPF + SCR, explore treatment solutions with lower energy consumption and higher efficiency, and provide competitive environmental protection solutions for scenarios such as integrated circuit manufacturing and data centers. With technological innovation as its core and customized services as its support, Green Valley Environmental Protection will help semiconductor enterprises achieve green development.
Post time: Nov-25-2025