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Industrial vapor recovery and air pollution control equipment background

Xiaoyi Regulation Tank & Sludge Holding Tank – Odor Control (LTP)

Xiaoyi Regulation Tank & Sludge Holding Tank – Odor Control (LTP) process flow

Project Overview

Odor control for the regulation tank and emergency sludge holding tank of an industrial park enterprise WWTP. Design air volume: 5,600 m3/h.

Odor Components

Hydrogen sulfide, volatile sulfides and small-molecule organic acids

Operating Challenges

Very limited reserved space; retrofit project; exhaust is humid and emitted intermittently.

Treatment Process

Sealed tank cover collection → water scrubber tower → fine filter → low-temperature plasma deodorization system → elevated discharge

Main Equipment

Corrosion-resistant fan, scrubber tower, fine filter, DBD low-temperature plasma unit

Treatment Results

No obvious rotten-egg odor around the tanks; stably meets environmental inspection requirements.

Operating Cost

0.52–0.61 CNY / 1,000 m3 of exhaust gas

Technical Highlights

Compact layout fits tight retrofit space; fine filter protects the plasma chamber under humid intermittent duty.

This project uses a Low-Temperature Plasma combined process. Learn more about the technology on our Low-Temperature Plasma equipment page. For a similar design, contact us at s18301170098@gmail.com / WhatsApp +86 19833770783.

Engineering Approach

Odor-control retrofits begin with capture: hoods and duct routing are arranged so the fan sees the lowest practical excess air, then the treatment stage – low-temperature plasma or microwave-UV – is sized against the measured or estimated pollutant spectrum and the intermittent profile of generation.

System Composition

A standard package comprises pretreatment (demisting/filtration where humidity or droplets are present), the oxidation stage with multiple modular trains, induced-draft fan, stack, and a control cabinet with interlocked start-up so the treatment unit always runs before the extraction fan ramps.

After-Sales

Modularity keeps maintenance predictable: individual trains isolate electrically for service without stopping the line. Consumables are limited to filters and periodic lamp/electrode inspection – both items stocked for quick dispatch.