Air Monitoring

FORMALDEHYDE MEASUREMENT IN EMISSIONS FROM PRESS BOARD AND BONDED FIBRE PRODUCTION

Author: R. De Fré, I. Vanderreydt, W. Swaans on behalf of CEM

Free to read

This article has been unlocked and is ready to read.

Download

Introduction

Formaldehyde is a known carcinogen and its concentrations have to be minimized in industrial emissions. Sectors where formaldehyde containing formulations are applied include mineral wool forming by resin impregnation and the manufacturing of pressed boards. For stack emissions typically limit values of 20 mg/Nm³ are imposed and the test methods have to be validated in this range. In cases where a limit total emission factor expressed as quantity of formaldehyde released per unit of product, e.g. in kg/m³, is specified, additonally the determination of diffuse emissions of formaldehyde is required. This paper describes validation work on formaldehyde measurement in gases and illustrates problems of incomplete recovery of formaldehyde when the DNPH method is used in stack gas sampling. The tests confirmed that the EPA 316 method with spectrophotometrical analysis is suited to deliver accurate results in this range.


Digital Edition

AET 28.4 Oct/Nov 2024

November 2024

Gas Detection - Go from lagging to leading: why investment in gas detection makes sense Air Monitoring - Swirl and vortex meters will aid green hydrogen production - Beyond the Stack: Emi...

View all digital editions

Events

Aquatech China 2024

Dec 11 2024 Shanghai, China

Abu Dhabi Sustainability Week

Jan 12 2025 Abu Dhabi, UAE

World Future Energy Summit

Jan 14 2025 Abu Dhabi, UAE

Clean Fuels Conference

Jan 20 2025 San Diego, CA, USA

Carrefour des Gestions Locales de L'eau

Jan 22 2025 Rennes, France

View all events