Sewage odor is often the number one complaint attributed with wastewater treatment and waterworks facilities. The sewage odor is mainly due to hydrogen sulfide gas. The use of Chemteq filter’s replacement indicator on the outlet of filter or carbon absorber alerts the user when filter or carbon absorber is saturated and exhausted. Our filter replacement indicators, not only ensures the health and well-being of the wastewater treatment staff, but also ensures that residents in the vicinity of the plant are breathing odor-free air.
We manufacture filter change indicators BTI (inlet 0.75” NPT) for ammonia, hydrogen sulfide and mercaptans. BTI 2 (inlet 1.5” NPT) for ammonia, hydrogen sulfide and mercaptans. BTI 3 (2.5” NPT) for ammonia, hydrogen sulfide and mercaptans. Filter change indicators inline inlet BTI inline (inlet & outlet 0.75” NPT) for ammonia, hydrogen sulfide and mercaptans. Filter change indicator sticker, sewer manhole filters for hydrogen sulfide. Filters end-of-service life indicators for hydrogen sulfide.
NIOSH: Occupational Exposure to Hydrogen Sulfide p.79 (1977) DHEW (NIOSH) Publication # 77-158.
USEPA; Health and Environmental Effects Profile for Hydrogen Sulfide, p. 118 (1980), ECAO-CIN-026A.
U.S. National Library of Medicine, CASRN: 7783-06-4.