Stainless Steel Screen Pipes Continue Expanding in Water Treatment, Becoming Mainstream Pretreatment Configuration
Release time:
2026-07-04
The first process in municipal sewage treatment plants and industrial wastewater treatment stations is pretreatment, which removes suspended solids, fibers, hair and large particles through physical interception. Pretreatment effectiveness directly determines the stable operation of subsequent biological treatment and deep treatment processes.
1. Core Equipment in Wastewater Pretreatment
Compared with traditional mechanical bar screens and coarse filters, stainless steel screen pipes feature V-shaped slot structure achieving finer interception with precision from 0.1 to 3mm, while self-cleaning through hydraulic flushing requires no intensive manual maintenance, significantly reducing operating costs. According to Mysteel data, penetration of stainless steel screen pipes in large domestic municipal wastewater treatment plants has exceeded 40%.
2. 316L Material Becomes First Choice for Industrial Wastewater
Industrial wastewater has complex composition with corrosive media such as acids, alkalis, sulfides and chloride ions, placing stringent requirements on filtration equipment materials. 316L stainless steel screen pipes, with excellent resistance to chloride ion pitting and crevice corrosion, have become the preferred choice in highly corrosive scenarios including papermaking wastewater, printing and dyeing wastewater, food processing wastewater and aquaculture wastewater.
3. Continuous Market Growth
China's 14th Five-Year Water Pollution Prevention Plan and urban sewage treatment quality improvement initiatives continue to advance, driving demand for new and upgraded sewage treatment facilities. Meanwhile, rapid growth in wastewater treatment demand from emerging industries such as lithium batteries, new energy and semiconductors further expands the market for stainless steel precision screen pipes.
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