Where our scrubbers work
Different industries, one problem: something in the extract that cannot go out as it is. What changes between them is the chemistry, the volume, and who notices when it goes wrong.
Laboratories and research
Fume cupboard and containment extract in universities, hospital and analytical laboratories. Aggressive but low-volume duties, often in a building that was never designed around a plant room.
- Acid digestion and perchloric work
- Teaching and analytical suites
- Containment and animal facilities
Pharmaceutical and fine chemicals
Reactor vents, solvent recovery vents and dispensary extract, where the contaminant list is long and the validation expectation is high.
- Reactor and vessel venting
- Solvent and amine odours
- Documented commissioning evidence
Semiconductor and electronics
Wet bench and etch extract carrying hydrofluoric, hydrochloric and nitric acid fume, where segregation of incompatible streams matters as much as removal.
- HF and mixed acid extract
- Segregated acid and solvent ducts
- High-availability duty/standby
Water and wastewater
Pumping stations, inlet works, sludge handling and storage tanks — the classic hydrogen sulphide and mercaptan odour duty, usually close to a sensitive boundary.
- H₂S and mercaptan odours
- Unattended remote sites
- Odour management plan compliance
Metal finishing and surface treatment
Pickling, anodising, plating and etching lines, where acid mist and chromic fume have to be taken out of a high, steady extract volume.
- Pickling and anodising lines
- Chromic and nitric mists
- Duty-cycle-driven dosing
Food, rendering and waste
Cooking, rendering, composting and transfer station odours — high-volume, high-nuisance duties judged by the neighbours rather than by a meter.
- Fatty acid and amine odours
- High-volume, low-concentration
- Complaint-driven performance
What usually drives the requirement
Very few scrubbers are bought because someone wanted one. There is nearly always a duty, a permit condition or a complaint behind it — and which one it is shapes how the system has to be evidenced, not just how it has to perform.
- COSHH — controlling exposure at source, with local exhaust ventilation examined and tested at intervals of no more than 14 months.
- Environmental permitting — emission limits and monitoring conditions attached to a site's permit or discharge consent.
- Statutory nuisance — odour complaints, and the odour management plan a regulator expects to see in response.
- DSEAR — where solvent or flammable gas is present, driving hazardous area classification and equipment selection.
- BS EN 14175 — the fume cupboard standard our compact laboratory units are designed to work alongside.
The equipment behind these applications
Compact fume cupboard scrubbers
Packed-bed scrubbers sized for one to four fume cupboards, built to fit the plant room you already have.
SpecificationsPacked tower scrubbers
The workhorse for soluble gases — counter-current or cross-flow, from a few hundred to tens of thousands of cubic metres an hour.
SpecificationsOdour control scrubbers
Chemical scrubbing for hydrogen sulphide, mercaptans, ammonia and the amine odours that generate complaints.
SpecificationsVenturi scrubbers
High-energy scrubbing for particulate, fume and sub-micron mists that a packed bed will not hold.
SpecificationsMulti-stage scrubbers
Two and three stage systems for mixed process streams, where one chemistry cannot do the whole job.
SpecificationsControls, dosing & monitoring
The panel, the instruments and the dosing that keep a scrubber at its design duty between services.
SpecificationsNot sure which of these you are?
Most enquiries start with a process and a problem rather than a specification. Describe what you are running and what is coming off it, and we will tell you what the duty actually is.